Analysis

  • max time kernel
    143s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/03/2023, 14:11

General

  • Target

    tmp.exe

  • Size

    701KB

  • MD5

    8464e5ded61cc6085adeb10e81fc6483

  • SHA1

    f028454b3e57fed009783c737497983b929fad85

  • SHA256

    39284637e45691feb034477cb6d51b662892a17b883ce42cee8d8e2fcdda4817

  • SHA512

    4261dd426d57e6085e52e4bcc4b12eb67927e72f227dab79d7e393e63a8c1ab9bcd9cea63915cad88d6417f268b12bef6dc8222c1e061bda4cdd03fb8c961d8e

  • SSDEEP

    12288:7C42YzjMYQo4AqrgGiG5Ni1vKkyg2BWRShmxP+BXXKPURUfhaDSwXXJGRTw:7C4z9boNe3RUM+BXrYHwHJT

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot6041013494:AAH-I-5N7YCs5dQrpIdJ8toHohqsTM_GsfI/sendMessage?chat_id=6291600401

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • 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
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmp.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1456
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\CiljFQLUOyjbPW.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4444
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CiljFQLUOyjbPW" /XML "C:\Users\Admin\AppData\Local\Temp\tmp18F6.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4224
    • C:\Users\Admin\AppData\Local\Temp\tmp.exe
      "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:4400

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hebmjddi.ugk.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • C:\Users\Admin\AppData\Local\Temp\tmp18F6.tmp

          Filesize

          1KB

          MD5

          e95c3153dfa4d0e0f0aa629c20918360

          SHA1

          f232e1868d49e22a79996f74faaff113cb225510

          SHA256

          2d7f669e710214b3396d2b41a856b92075fe33e3f4b31b22d26872a454c7f84c

          SHA512

          78fdac8b4d4421fb3cab520dcaa015afaaf8dcb65c4f238a77de388f9cbec016363d4fe9a5e2b79cd38bd20ebdedce195920340d5dd77b81459af079b753bd62

        • memory/1456-139-0x0000000007280000-0x000000000731C000-memory.dmp

          Filesize

          624KB

        • memory/1456-136-0x0000000005AC0000-0x0000000005AD0000-memory.dmp

          Filesize

          64KB

        • memory/1456-137-0x00000000059F0000-0x00000000059FA000-memory.dmp

          Filesize

          40KB

        • memory/1456-138-0x0000000005AC0000-0x0000000005AD0000-memory.dmp

          Filesize

          64KB

        • memory/1456-133-0x0000000000ED0000-0x0000000000F86000-memory.dmp

          Filesize

          728KB

        • memory/1456-135-0x0000000005940000-0x00000000059D2000-memory.dmp

          Filesize

          584KB

        • memory/1456-134-0x0000000005E00000-0x00000000063A4000-memory.dmp

          Filesize

          5.6MB

        • memory/4400-189-0x0000000004E90000-0x0000000004EA0000-memory.dmp

          Filesize

          64KB

        • memory/4400-186-0x0000000006300000-0x00000000064C2000-memory.dmp

          Filesize

          1.8MB

        • memory/4400-147-0x0000000000400000-0x0000000000426000-memory.dmp

          Filesize

          152KB

        • memory/4400-161-0x0000000004E90000-0x0000000004EA0000-memory.dmp

          Filesize

          64KB

        • memory/4444-163-0x0000000000E10000-0x0000000000E20000-memory.dmp

          Filesize

          64KB

        • memory/4444-177-0x0000000005FE0000-0x0000000005FFE000-memory.dmp

          Filesize

          120KB

        • memory/4444-162-0x0000000000E10000-0x0000000000E20000-memory.dmp

          Filesize

          64KB

        • memory/4444-150-0x0000000004B00000-0x0000000004B66000-memory.dmp

          Filesize

          408KB

        • memory/4444-149-0x0000000004A60000-0x0000000004A82000-memory.dmp

          Filesize

          136KB

        • memory/4444-164-0x0000000005A30000-0x0000000005A4E000-memory.dmp

          Filesize

          120KB

        • memory/4444-165-0x0000000000E10000-0x0000000000E20000-memory.dmp

          Filesize

          64KB

        • memory/4444-166-0x0000000006000000-0x0000000006032000-memory.dmp

          Filesize

          200KB

        • memory/4444-167-0x0000000070150000-0x000000007019C000-memory.dmp

          Filesize

          304KB

        • memory/4444-156-0x00000000053F0000-0x0000000005456000-memory.dmp

          Filesize

          408KB

        • memory/4444-178-0x000000007F660000-0x000000007F670000-memory.dmp

          Filesize

          64KB

        • memory/4444-179-0x0000000007390000-0x0000000007A0A000-memory.dmp

          Filesize

          6.5MB

        • memory/4444-180-0x0000000006D40000-0x0000000006D5A000-memory.dmp

          Filesize

          104KB

        • memory/4444-181-0x0000000006DC0000-0x0000000006DCA000-memory.dmp

          Filesize

          40KB

        • memory/4444-182-0x0000000006FC0000-0x0000000007056000-memory.dmp

          Filesize

          600KB

        • memory/4444-183-0x0000000006F70000-0x0000000006F7E000-memory.dmp

          Filesize

          56KB

        • memory/4444-184-0x0000000007080000-0x000000000709A000-memory.dmp

          Filesize

          104KB

        • memory/4444-185-0x0000000007060000-0x0000000007068000-memory.dmp

          Filesize

          32KB

        • memory/4444-146-0x0000000004D50000-0x0000000005378000-memory.dmp

          Filesize

          6.2MB

        • memory/4444-144-0x0000000000CA0000-0x0000000000CD6000-memory.dmp

          Filesize

          216KB