Analysis

  • max time kernel
    53s
  • max time network
    142s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • 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:
    [email protected]
  • 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 7 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:500
    • 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:3568

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/500-0-0x0000000073560000-0x0000000073C4E000-memory.dmp

    Filesize

    6.9MB

  • memory/500-1-0x0000000000200000-0x0000000000201000-memory.dmp

    Filesize

    4KB

  • memory/500-3-0x0000000000BD0000-0x0000000000BDF000-memory.dmp

    Filesize

    60KB

  • memory/500-4-0x0000000005100000-0x0000000005101000-memory.dmp

    Filesize

    4KB

  • memory/500-5-0x00000000024E0000-0x00000000024E2000-memory.dmp

    Filesize

    8KB

  • memory/500-6-0x0000000004CF0000-0x0000000004CF1000-memory.dmp

    Filesize

    4KB

  • memory/500-7-0x0000000004DF0000-0x0000000004DF2000-memory.dmp

    Filesize

    8KB

  • memory/500-8-0x0000000004FA0000-0x0000000004FA1000-memory.dmp

    Filesize

    4KB

  • memory/500-9-0x0000000004E80000-0x0000000004E83000-memory.dmp

    Filesize

    12KB

  • memory/3568-10-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/3568-11-0x000000000041FE3E-mapping.dmp

  • memory/3568-12-0x0000000073560000-0x0000000073C4E000-memory.dmp

    Filesize

    6.9MB

  • memory/3568-15-0x0000000004D30000-0x0000000004D61000-memory.dmp

    Filesize

    196KB

  • memory/3568-17-0x0000000005350000-0x0000000005351000-memory.dmp

    Filesize

    4KB

  • memory/3568-19-0x0000000005E30000-0x0000000005E31000-memory.dmp

    Filesize

    4KB

  • memory/3568-20-0x0000000006200000-0x0000000006201000-memory.dmp

    Filesize

    4KB

  • memory/3568-21-0x0000000006660000-0x0000000006661000-memory.dmp

    Filesize

    4KB