Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-01-2025 07:52

General

  • Target

    Dekont_524057699-1034.img.exe

  • Size

    820KB

  • MD5

    3f41e4dca3d68822e0732dc773818828

  • SHA1

    80238f7ae8a4377ca9a1ce7494e311971cd91448

  • SHA256

    95f534332db8d77c0f0a5941076a56a162bc12080e8187d7ca0e8924f999a5cf

  • SHA512

    1612b22f378979c1eaa0739b08b37e062904b78e1a369c93fad01d0007c7fff711aa59ea28d02e823ef543069f1e73b570bf08e453312ec4653122f1243201bc

  • SSDEEP

    12288:iDOY00juUXTpUfLk4PC6Ob2zVZcM/EEThByEhBMpjcVlFZ6nHIHzuek0U5fCfXF0:iDOdwlAhP8bSHcwxhBeglWnALkVqq

Malware Config

Extracted

Family

vipkeylogger

Signatures

  • VIPKeylogger

    VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.

  • Vipkeylogger family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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 3 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 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Dekont_524057699-1034.img.exe
    "C:\Users\Admin\AppData\Local\Temp\Dekont_524057699-1034.img.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1204
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Dekont_524057699-1034.img.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4380
    • C:\Users\Admin\AppData\Local\Temp\Dekont_524057699-1034.img.exe
      "C:\Users\Admin\AppData\Local\Temp\Dekont_524057699-1034.img.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:3376

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Dekont_524057699-1034.img.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_lo5a2u5v.oyw.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/1204-10-0x000000000B590000-0x000000000B62C000-memory.dmp

    Filesize

    624KB

  • memory/1204-1-0x0000000000A30000-0x0000000000B02000-memory.dmp

    Filesize

    840KB

  • memory/1204-4-0x00000000055A0000-0x00000000055AA000-memory.dmp

    Filesize

    40KB

  • memory/1204-5-0x0000000074FF0000-0x00000000757A0000-memory.dmp

    Filesize

    7.7MB

  • memory/1204-6-0x00000000056F0000-0x000000000570E000-memory.dmp

    Filesize

    120KB

  • memory/1204-7-0x0000000074FFE000-0x0000000074FFF000-memory.dmp

    Filesize

    4KB

  • memory/1204-8-0x0000000074FF0000-0x00000000757A0000-memory.dmp

    Filesize

    7.7MB

  • memory/1204-9-0x0000000002D90000-0x0000000002E1E000-memory.dmp

    Filesize

    568KB

  • memory/1204-0-0x0000000074FFE000-0x0000000074FFF000-memory.dmp

    Filesize

    4KB

  • memory/1204-3-0x0000000005500000-0x0000000005592000-memory.dmp

    Filesize

    584KB

  • memory/1204-2-0x0000000005A10000-0x0000000005FB4000-memory.dmp

    Filesize

    5.6MB

  • memory/1204-14-0x0000000074FF0000-0x00000000757A0000-memory.dmp

    Filesize

    7.7MB

  • memory/3376-11-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/3376-65-0x0000000007110000-0x000000000763C000-memory.dmp

    Filesize

    5.2MB

  • memory/3376-64-0x0000000006890000-0x00000000068E0000-memory.dmp

    Filesize

    320KB

  • memory/3376-63-0x0000000006A10000-0x0000000006BD2000-memory.dmp

    Filesize

    1.8MB

  • memory/3376-62-0x0000000074FF0000-0x00000000757A0000-memory.dmp

    Filesize

    7.7MB

  • memory/3376-36-0x0000000074FF0000-0x00000000757A0000-memory.dmp

    Filesize

    7.7MB

  • memory/3376-15-0x0000000074FF0000-0x00000000757A0000-memory.dmp

    Filesize

    7.7MB

  • memory/4380-27-0x0000000074FF0000-0x00000000757A0000-memory.dmp

    Filesize

    7.7MB

  • memory/4380-52-0x0000000007C40000-0x0000000007C4A000-memory.dmp

    Filesize

    40KB

  • memory/4380-32-0x00000000062A0000-0x00000000065F4000-memory.dmp

    Filesize

    3.3MB

  • memory/4380-33-0x00000000068B0000-0x00000000068CE000-memory.dmp

    Filesize

    120KB

  • memory/4380-35-0x0000000074FF0000-0x00000000757A0000-memory.dmp

    Filesize

    7.7MB

  • memory/4380-20-0x00000000059A0000-0x0000000005A06000-memory.dmp

    Filesize

    408KB

  • memory/4380-34-0x00000000068E0000-0x000000000692C000-memory.dmp

    Filesize

    304KB

  • memory/4380-37-0x0000000007860000-0x0000000007892000-memory.dmp

    Filesize

    200KB

  • memory/4380-38-0x0000000070A00000-0x0000000070A4C000-memory.dmp

    Filesize

    304KB

  • memory/4380-48-0x0000000006E90000-0x0000000006EAE000-memory.dmp

    Filesize

    120KB

  • memory/4380-49-0x0000000007AC0000-0x0000000007B63000-memory.dmp

    Filesize

    652KB

  • memory/4380-50-0x0000000008210000-0x000000000888A000-memory.dmp

    Filesize

    6.5MB

  • memory/4380-51-0x0000000007BD0000-0x0000000007BEA000-memory.dmp

    Filesize

    104KB

  • memory/4380-19-0x00000000058F0000-0x0000000005912000-memory.dmp

    Filesize

    136KB

  • memory/4380-53-0x0000000007E50000-0x0000000007EE6000-memory.dmp

    Filesize

    600KB

  • memory/4380-54-0x0000000007DD0000-0x0000000007DE1000-memory.dmp

    Filesize

    68KB

  • memory/4380-55-0x0000000007E00000-0x0000000007E0E000-memory.dmp

    Filesize

    56KB

  • memory/4380-56-0x0000000007E10000-0x0000000007E24000-memory.dmp

    Filesize

    80KB

  • memory/4380-57-0x0000000007F10000-0x0000000007F2A000-memory.dmp

    Filesize

    104KB

  • memory/4380-58-0x0000000007EF0000-0x0000000007EF8000-memory.dmp

    Filesize

    32KB

  • memory/4380-61-0x0000000074FF0000-0x00000000757A0000-memory.dmp

    Filesize

    7.7MB

  • memory/4380-21-0x0000000005A10000-0x0000000005A76000-memory.dmp

    Filesize

    408KB

  • memory/4380-18-0x0000000074FF0000-0x00000000757A0000-memory.dmp

    Filesize

    7.7MB

  • memory/4380-16-0x0000000002FB0000-0x0000000002FE6000-memory.dmp

    Filesize

    216KB

  • memory/4380-17-0x0000000005B20000-0x0000000006148000-memory.dmp

    Filesize

    6.2MB