Sunday, April 24, 2016

Hundreds of Google Play Apps Compromised, Lead to Mobile Malware

Malicious attackers, have, managed, to, infiltrate, and populate, Google Play, with, hundreds, of rogue, applications, exposing, users, to mobile, malware, compromising, the, integrity, of, their, devices, and, exposing, them, to, misleading, advertisements. Once, a socially, engineered, user, obtains, the, application, and, execute, it, their, device, the malware, phones, back, to, a malicious URL, exposing, the, integrity, confidentiality, and, availability, of, the, device.

Malicious attackers, often, rely, on, a variety of social engineering tactics, to, obtain, access, to, a user's device, including, the use, of, compromised, publisher's accounts, obtained, through, data mining, of botnet's of infected, population. Once, access, to, a particular, publisher's account, is, obtained, the malicious attackers, would, attempt, to use, a do-it-yourself, type, of, mobile, malware, generating tool, for, the, purpose, of, modifying, a legitimate, application, for, the, purpose, of, obtaining, access, to, a user's device.

Malicious attackers, are, also, known, to rely, on secondary, marketplaces, for, the, purpose, of, attempting, to, obtain, access, to user's, device, with, the, secondary, marketplaces, populated, with, rogue, and compromised, applications.

Once, a, socially, engineered, user, obtains, an, application, their, device, automatically, becomes, part, of, a, malicious attacker's, botnet, with, the malicious, attackers, relying on, a multitude, of monetization techniques, while, earning, fraudulently, obtained, revenue, in, the, process. Malicious attackers, are, also, known, to, rely, on, rogue, and, fraudulent, affiliate networks, for, the, purpose, of, monetizing, access, to, the, obtained, hosts, through, a, variety, of, rogue, advertising, networks, largely, set, up, for, the, purpose, of, earning, fraudulent, revenue, for, the, malicious attackers.

These affiliate networks, are, known, to, provide, managed, support, including, the, systematic, rotation of the command and control, server, and, the, availability, of, various, templates, empowering, malicious attackers, with, access, to, a, variety, of, fraudulent techniques, allowing, them, to, easily, monetize, access, to, the, infected hosts.

In this post, we'll profile, profile, the, Android.Spy.277.origin, mobile, malware, found, on hundreds, of applications, at Google Play, expose, the, malicious, infrastructure, behind, it, provide, MD5s, and, discuss, in, depth, the, various tactics, techniques, and procedures, utilized, by, malicious, attackers, for, the purpose, of, spreading, mobile, malware, attempting, to, trick, users, into, executing, malicious software, on their, devices.

Sample detection rate for a sample malware:
MD5: a51d7f8413aa3857a4682fa631d39054

Once executed the sample phones back to the following C&C server:
hxxp:// -;

The same malicious C&C server ( is also known to have responded to the following IPs:

Related malicious MD5s known to have phoned back to the same C&C server:
MD5: 53958d60a2d52c99ad305ec105d47486
MD5: 45eaa4fc36c9a69b3ac78ddce7800daa
MD5: b355ed6fa08ef0415d4e7c6bc602f9a8
MD5: e4c7d87b7b20ae9555c6efe6466b32e6
MD5: 83a449691ff40cf9d3c8c4d7119aaea7

This post has been reproduced from Dancho Danchev's blog.