Resubmissions

19-01-2022 16:33

220119-t22cmabeh7 10

25-11-2021 12:38

211125-pt3hhaaee7 8

Analysis

  • max time kernel
    135s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    19-01-2022 16:33

General

  • Target

    c920b2de025019e9a406e9b2f0ac2cbbfc18d65eac15f59ca8921c5fb4bfa240.exe

  • Size

    5.0MB

  • MD5

    dbe9736b562b2bcce0b531fdfeaded32

  • SHA1

    a36ac4af321f97964885b801601aaee816f405d1

  • SHA256

    c920b2de025019e9a406e9b2f0ac2cbbfc18d65eac15f59ca8921c5fb4bfa240

  • SHA512

    9dc69b482a510482b6aa6992924daf39b96bb43ab9017d6919120288e3d7936717b21aa24cd12c51d64d446eecc626bdc0ddfd0222cff5fde8010d110edea849

Malware Config

Extracted

Family

arkei

Botnet

Default

C2

http://185.215.113.39/7vlcKuayFx.php

Signatures

  • Arkei

    Arkei is an infostealer written in C++.

  • Babadeda

    Babadeda is a crypter delivered as a legitimate installer and used to drop other malware families.

  • Babadeda Crypter 1 IoCs
  • Arkei Stealer Payload 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c920b2de025019e9a406e9b2f0ac2cbbfc18d65eac15f59ca8921c5fb4bfa240.exe
    "C:\Users\Admin\AppData\Local\Temp\c920b2de025019e9a406e9b2f0ac2cbbfc18d65eac15f59ca8921c5fb4bfa240.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3480
    • C:\Users\Admin\AppData\Local\Temp\is-6FDAK.tmp\c920b2de025019e9a406e9b2f0ac2cbbfc18d65eac15f59ca8921c5fb4bfa240.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-6FDAK.tmp\c920b2de025019e9a406e9b2f0ac2cbbfc18d65eac15f59ca8921c5fb4bfa240.tmp" /SL5="$80182,4382530,831488,C:\Users\Admin\AppData\Local\Temp\c920b2de025019e9a406e9b2f0ac2cbbfc18d65eac15f59ca8921c5fb4bfa240.exe"
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:1552
      • C:\Users\Admin\AppData\Local\Temp\c920b2de025019e9a406e9b2f0ac2cbbfc18d65eac15f59ca8921c5fb4bfa240.exe
        "C:\Users\Admin\AppData\Local\Temp\c920b2de025019e9a406e9b2f0ac2cbbfc18d65eac15f59ca8921c5fb4bfa240.exe" /VERYSILENT
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1720
        • C:\Users\Admin\AppData\Local\Temp\is-H1ITM.tmp\c920b2de025019e9a406e9b2f0ac2cbbfc18d65eac15f59ca8921c5fb4bfa240.tmp
          "C:\Users\Admin\AppData\Local\Temp\is-H1ITM.tmp\c920b2de025019e9a406e9b2f0ac2cbbfc18d65eac15f59ca8921c5fb4bfa240.tmp" /SL5="$9004C,4382530,831488,C:\Users\Admin\AppData\Local\Temp\c920b2de025019e9a406e9b2f0ac2cbbfc18d65eac15f59ca8921c5fb4bfa240.exe" /VERYSILENT
          4⤵
          • Executes dropped EXE
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of WriteProcessMemory
          PID:3824
          • C:\Users\Admin\AppData\Roaming\Ev Reports Management\evreporter.exe
            "C:\Users\Admin\AppData\Roaming\Ev Reports Management\evreporter.exe"
            5⤵
            • Executes dropped EXE
            • Loads dropped DLL
            PID:2244

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1552-133-0x00000000008C0000-0x00000000008C1000-memory.dmp

    Filesize

    4KB

  • memory/1720-134-0x0000000000400000-0x00000000004D8000-memory.dmp

    Filesize

    864KB

  • memory/2244-143-0x0000000000400000-0x0000000000BBD000-memory.dmp

    Filesize

    7.7MB

  • memory/3480-130-0x0000000000400000-0x00000000004D8000-memory.dmp

    Filesize

    864KB

  • memory/3824-137-0x00000000008D0000-0x00000000008D1000-memory.dmp

    Filesize

    4KB