Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-01-2025 04:41

General

  • Target

    RFQ#JST20251127.exe

  • Size

    777KB

  • MD5

    2a033ce79f8142bc08a4936294f0cac7

  • SHA1

    facae4705744a69dae73c1215b93d0c0f68615cb

  • SHA256

    662c59e2e25dd110e668d033d78c2becf8c9441becc0f635bae889f9818031a4

  • SHA512

    c7de1555c388a0ab61fbe680ff42b828324b865a2093d247c4b937cb12b16bbe767e7cf7bd96cc437b17493ae63aa775de5fe0257aa649622b987193a2215b96

  • SSDEEP

    12288:j3L7Wa+k86Rg9IcgMiXBKy83nEiOm8mPaEC8mGo1GAVp2Lr7nE87bGiB:Uk30iRgXE11cRCZGvAVpP87

Malware Config

Extracted

Family

vipkeylogger

C2

https://api.telegram.org/bot6172680371:AAGdna-xIKVG_ha6EKkcDxhJez2KjVhI3Pc/sendMessage?chat_id=7427804146

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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\RFQ#JST20251127.exe
    "C:\Users\Admin\AppData\Local\Temp\RFQ#JST20251127.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3808
    • 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\RFQ#JST20251127.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:232
    • C:\Users\Admin\AppData\Local\Temp\RFQ#JST20251127.exe
      "C:\Users\Admin\AppData\Local\Temp\RFQ#JST20251127.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:4780

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\RFQ#JST20251127.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hr0pjiod.w5q.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/232-33-0x0000000005530000-0x0000000005884000-memory.dmp

    Filesize

    3.3MB

  • memory/232-49-0x0000000006B30000-0x0000000006BD3000-memory.dmp

    Filesize

    652KB

  • memory/232-57-0x00000000071A0000-0x00000000071BA000-memory.dmp

    Filesize

    104KB

  • memory/232-56-0x00000000070A0000-0x00000000070B4000-memory.dmp

    Filesize

    80KB

  • memory/232-54-0x0000000007060000-0x0000000007071000-memory.dmp

    Filesize

    68KB

  • memory/232-53-0x00000000070E0000-0x0000000007176000-memory.dmp

    Filesize

    600KB

  • memory/232-52-0x0000000006ED0000-0x0000000006EDA000-memory.dmp

    Filesize

    40KB

  • memory/232-50-0x00000000074F0000-0x0000000007B6A000-memory.dmp

    Filesize

    6.5MB

  • memory/232-51-0x0000000006E70000-0x0000000006E8A000-memory.dmp

    Filesize

    104KB

  • memory/232-38-0x00000000700B0000-0x00000000700FC000-memory.dmp

    Filesize

    304KB

  • memory/232-58-0x0000000007180000-0x0000000007188000-memory.dmp

    Filesize

    32KB

  • memory/232-16-0x00000000045A0000-0x00000000045D6000-memory.dmp

    Filesize

    216KB

  • memory/232-48-0x0000000006110000-0x000000000612E000-memory.dmp

    Filesize

    120KB

  • memory/232-18-0x0000000074680000-0x0000000074E30000-memory.dmp

    Filesize

    7.7MB

  • memory/232-17-0x0000000004C10000-0x0000000005238000-memory.dmp

    Filesize

    6.2MB

  • memory/232-22-0x00000000054B0000-0x0000000005516000-memory.dmp

    Filesize

    408KB

  • memory/232-21-0x0000000005440000-0x00000000054A6000-memory.dmp

    Filesize

    408KB

  • memory/232-35-0x0000000005B20000-0x0000000005B3E000-memory.dmp

    Filesize

    120KB

  • memory/232-19-0x0000000074680000-0x0000000074E30000-memory.dmp

    Filesize

    7.7MB

  • memory/232-28-0x0000000074680000-0x0000000074E30000-memory.dmp

    Filesize

    7.7MB

  • memory/232-37-0x0000000006AF0000-0x0000000006B22000-memory.dmp

    Filesize

    200KB

  • memory/232-61-0x0000000074680000-0x0000000074E30000-memory.dmp

    Filesize

    7.7MB

  • memory/232-36-0x00000000060A0000-0x00000000060EC000-memory.dmp

    Filesize

    304KB

  • memory/232-55-0x0000000007090000-0x000000000709E000-memory.dmp

    Filesize

    56KB

  • memory/232-20-0x00000000052A0000-0x00000000052C2000-memory.dmp

    Filesize

    136KB

  • memory/3808-5-0x0000000074680000-0x0000000074E30000-memory.dmp

    Filesize

    7.7MB

  • memory/3808-0-0x000000007468E000-0x000000007468F000-memory.dmp

    Filesize

    4KB

  • memory/3808-3-0x00000000058A0000-0x0000000005932000-memory.dmp

    Filesize

    584KB

  • memory/3808-15-0x0000000074680000-0x0000000074E30000-memory.dmp

    Filesize

    7.7MB

  • memory/3808-2-0x0000000005D50000-0x00000000062F4000-memory.dmp

    Filesize

    5.6MB

  • memory/3808-10-0x0000000003140000-0x00000000031CE000-memory.dmp

    Filesize

    568KB

  • memory/3808-9-0x0000000074680000-0x0000000074E30000-memory.dmp

    Filesize

    7.7MB

  • memory/3808-8-0x000000007468E000-0x000000007468F000-memory.dmp

    Filesize

    4KB

  • memory/3808-7-0x0000000005D00000-0x0000000005D1E000-memory.dmp

    Filesize

    120KB

  • memory/3808-6-0x0000000005B80000-0x0000000005C1C000-memory.dmp

    Filesize

    624KB

  • memory/3808-1-0x0000000000E10000-0x0000000000ED8000-memory.dmp

    Filesize

    800KB

  • memory/3808-4-0x0000000005960000-0x000000000596A000-memory.dmp

    Filesize

    40KB

  • memory/4780-14-0x0000000074680000-0x0000000074E30000-memory.dmp

    Filesize

    7.7MB

  • memory/4780-65-0x0000000074680000-0x0000000074E30000-memory.dmp

    Filesize

    7.7MB

  • memory/4780-34-0x0000000074680000-0x0000000074E30000-memory.dmp

    Filesize

    7.7MB

  • memory/4780-62-0x0000000006D70000-0x0000000006F32000-memory.dmp

    Filesize

    1.8MB

  • memory/4780-63-0x0000000006C00000-0x0000000006C50000-memory.dmp

    Filesize

    320KB

  • memory/4780-64-0x0000000007470000-0x000000000799C000-memory.dmp

    Filesize

    5.2MB

  • memory/4780-11-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/4780-66-0x0000000074680000-0x0000000074E30000-memory.dmp

    Filesize

    7.7MB