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ANDROIDOS_FAKEINSTALL.CATC

April 30, 2014
 Analysis by: Weichao Sun
 THREAT SUBTYPE:

Premium Service Abuser

 PLATFORM:

Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:
 INFORMATION EXPOSURE:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet


This mobile malware is capable of sending premium-rate SMS to a number of countries, ensuring its wide reach.

This mobile malware uses an adult-related name to trick users into downloading it on their phones.

It connects to a C&C server to get commands. It is capable of sending premium SMS messages to 95 different codes used in various countries.

  TECHNICAL DETAILS

File Size:

129,491 bytes

File Type:

APK

Memory Resident:

Yes

Initial Samples Received Date:

28 Apr 2014

Payload:

Connects to URLs/IPs

NOTES:

This mobile malware uses an adult-related name to trick users into downloading it on their phones. Upon installation, it registers itself as a service to run after every system reboot.

Every certain time, it connects to a C&C server to get commands. The server's address is stored in an encrypted file. Depending on the commands returned by the C&C server, this mobile malware can do the following:

  • Change C&C server address
  • Send SMS message
  • Hide itself
  • Intercept incoming SMS message

When launched manually, it asks users to send premium SMS message to watch the video. SMS body and address is decrypted from a file. The file contains 95 country/zone's premium numbers and codes to make sure this malware works in most places.

  SOLUTION

Minimum Scan Engine:

9.700

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