Extracted

• • Target

    file.exe

  • Size

    755KB

  • MD5

    c296f6d7c3ce6dad67003a5777a6da0a

  • SHA1

    b426f52cf2419af5c4829c65857ff4f873565ef0

  • SHA256

    27b26cf6ba3ddaeeb8f2d14b2868ea2229f3bf951cb6a2cccc73e207a08cbdcd

  • SHA512

    db969b2f9c0b1d8c9d2893c6418251a1a1765e3708a327ef6f7034f76a1dda86b1f695a8784e314acaeff8d33efc618164c48b740a9268871b2d199e64975b6b

  • SSDEEP

    12288:VQi3sc6m6UR0IeSp1hf39Wkv8xwJld8kO:VQi8zHIeSpdUMkkO

  Score

  10^/10

  nymaimdiscoveryevasionpersistencetrojan

  • NyMaim

    NyMaim is a malware with various capabilities written in C++ and first seen in 2013.

    trojannymaim

  • Process spawned unexpected child process

    This typically indicates the parent process was compromised via an exploit or macro.

  • Suspicious use of NtCreateUserProcessOtherParentProcess

  • Checks for common network interception software

    Looks in the registry for tools like Wireshark or Fiddler commonly used to analyze network activity.

    evasion

  • Downloads MZ/PE file

  • Drops file in Drivers directory

  • Executes dropped EXE

  • Checks computer location settings

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL

  • Unexpected DNS network traffic destination

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Adds Run key to start application

    persistence

  • Checks installed software on the system

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    discovery

  • Legitimate hosting services abused for malware hosting/C2

  • Looks up external IP address via web service

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in System32 directory

  • Suspicious use of SetThreadContext

  behavioral1behavioral2