Analysis

  • max time kernel
    135s
  • max time network
    143s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    09-11-2020 19:52

General

  • Target

    9855bb648dd60519f037e2f8fa4c8c8b.exe

  • Size

    332KB

  • MD5

    9855bb648dd60519f037e2f8fa4c8c8b

  • SHA1

    a9c625e35862ee791432980a60b68d086102816e

  • SHA256

    bf4c1b1e3d2c229a1238bffcf18e4b49e875f6bbe92bca5d79ab2a4ef27d0ae2

  • SHA512

    24a37d422ec28b755c02be9f4dab30a42e50a285c4919ffcf8c1968317cdf2f1ed16d4b8b26748f64fccc4eb3d041763edafef84af0f28d6c0df7597800a255a

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.aviner.co.za
  • Port:
    587
  • Username:
    christine@aviner.co.za
  • Password:
    NoLimits@

Signatures

  • Cheetah Keylogger

    Cheetah is a keylogger and info stealer first seen in March 2020.

  • Cheetah Keylogger Payload 1 IoCs
  • Obfuscated with Agile.Net obfuscator 1 IoCs

    Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9855bb648dd60519f037e2f8fa4c8c8b.exe
    "C:\Users\Admin\AppData\Local\Temp\9855bb648dd60519f037e2f8fa4c8c8b.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1360
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1936

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/1360-0-0x0000000074520000-0x0000000074C0E000-memory.dmp
    Filesize

    6.9MB

  • memory/1360-1-0x0000000000BF0000-0x0000000000BF1000-memory.dmp
    Filesize

    4KB

  • memory/1360-3-0x0000000000320000-0x000000000032F000-memory.dmp
    Filesize

    60KB

  • memory/1360-4-0x0000000000350000-0x0000000000352000-memory.dmp
    Filesize

    8KB

  • memory/1360-5-0x0000000000380000-0x0000000000382000-memory.dmp
    Filesize

    8KB

  • memory/1360-6-0x0000000000490000-0x0000000000493000-memory.dmp
    Filesize

    12KB

  • memory/1936-7-0x0000000000400000-0x0000000000422000-memory.dmp
    Filesize

    136KB

  • memory/1936-8-0x000000000041FE3E-mapping.dmp
  • memory/1936-9-0x0000000000400000-0x0000000000422000-memory.dmp
    Filesize

    136KB

  • memory/1936-10-0x0000000000400000-0x0000000000422000-memory.dmp
    Filesize

    136KB

  • memory/1936-11-0x0000000074520000-0x0000000074C0E000-memory.dmp
    Filesize

    6.9MB

  • memory/1936-14-0x0000000000430000-0x0000000000461000-memory.dmp
    Filesize

    196KB