Extracted

• • Target
    file.exe
  • Size 380KB
  • SHA256 d2a94c8b3e3032ba9be61ff8aea3d7900c32726c147cdb551e066719292083d3
  • MD5 c0764737abbc5621cb816a48dde0d84e
  • SHA1 5a758df9cd6980c8349a01ab4ad01036c0b23247
  • SHA512 ad86bd035b416cdcd7d9cf2432cc84da7582dbe0e53c44dd95ef0c7875a33456910bfd6b81ae921b04bc68d2f7ee587fca92d8fdbe80ecd353e2322be205ff68
  • SSDEEP 6144:x/QiQXCRkm+ksmpk3U9j0I37OGBfj/WUplm6zIOYQNd28pTXdAmpCLVRZoglM7LT:pQi3RP6m6UR0I37lL//plmW9bTXeVhD4
  • MD5 SHA1 SHA512 SSDEEP

  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.

  • Program crash

  • Drops file in System32 directory

  • Suspicious use of SetThreadContext

  behavioral1behavioral2