Analysis

  • max time kernel
    61s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    18-04-2022 12:02

General

  • Target

    2ec373a4e410e0f1cfd2d6da931f219934f3d7c9f9e68be9d56262aae65e356c.exe

  • Size

    377KB

  • MD5

    fc9b47ae8962c3d595cfdf97b657f418

  • SHA1

    0801a1c1426327ceec63c195399770753b080c12

  • SHA256

    2ec373a4e410e0f1cfd2d6da931f219934f3d7c9f9e68be9d56262aae65e356c

  • SHA512

    fb1fd9e367a1f0f39a9674837812b75cb0fefac2dcfc11a45cd3430039f9b6983e91a75f0705a8d86ec7579c2315a23e2549524b681aab2a138e3ba0d30dec5e

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\2ec373a4e410e0f1cfd2d6da931f219934f3d7c9f9e68be9d56262aae65e356c.exe
    "C:\Users\Admin\AppData\Local\Temp\2ec373a4e410e0f1cfd2d6da931f219934f3d7c9f9e68be9d56262aae65e356c.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:456
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "2ec373a4e410e0f1cfd2d6da931f219934f3d7c9f9e68be9d56262aae65e356c.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\2ec373a4e410e0f1cfd2d6da931f219934f3d7c9f9e68be9d56262aae65e356c.exe" & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:800
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /im "2ec373a4e410e0f1cfd2d6da931f219934f3d7c9f9e68be9d56262aae65e356c.exe" /f
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:1104
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 456 -s 1256
      2⤵
      • Program crash
      PID:4448
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 456 -ip 456
    1⤵
      PID:3020

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/456-130-0x0000000000578000-0x00000000005A0000-memory.dmp

      Filesize

      160KB

    • memory/456-131-0x0000000002110000-0x0000000002156000-memory.dmp

      Filesize

      280KB

    • memory/456-132-0x0000000000400000-0x0000000000519000-memory.dmp

      Filesize

      1.1MB