Analysis

  • max time kernel
    90s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    18-04-2022 12:01

General

  • Target

    a616ad2a94b21ef8eb938dfaef352b22273422da4240b52ac859b258587723b1.exe

  • Size

    223KB

  • MD5

    90421274471a9baf4eaa0fd1ed7941f3

  • SHA1

    77be04f6cb6170128a5d284877eedfbe936be9a0

  • SHA256

    a616ad2a94b21ef8eb938dfaef352b22273422da4240b52ac859b258587723b1

  • SHA512

    cea09b3d1869bf3d53f40ae86377ec6fb72d0f670372cc2b1a2a3ffba99151831fcd795ebb844931b63f1b1a77e4b4110cf162908b9765d1304bc4f556206066

Score
10/10

Malware Config

Signatures

  • OnlyLogger

    A tiny loader that uses IPLogger to get its payload.

  • OnlyLogger Payload 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Program crash 1 IoCs
  • Kills process with taskkill 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a616ad2a94b21ef8eb938dfaef352b22273422da4240b52ac859b258587723b1.exe
    "C:\Users\Admin\AppData\Local\Temp\a616ad2a94b21ef8eb938dfaef352b22273422da4240b52ac859b258587723b1.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4424
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "a616ad2a94b21ef8eb938dfaef352b22273422da4240b52ac859b258587723b1.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\a616ad2a94b21ef8eb938dfaef352b22273422da4240b52ac859b258587723b1.exe" & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:64
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /im "a616ad2a94b21ef8eb938dfaef352b22273422da4240b52ac859b258587723b1.exe" /f
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:4268
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4424 -s 1276
      2⤵
      • Program crash
      PID:1248
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4424 -ip 4424
    1⤵
      PID:4252

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/4424-130-0x0000000000548000-0x0000000000570000-memory.dmp

      Filesize

      160KB

    • memory/4424-131-0x0000000002120000-0x0000000002166000-memory.dmp

      Filesize

      280KB

    • memory/4424-132-0x0000000000400000-0x00000000004F1000-memory.dmp

      Filesize

      964KB