Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-01-2025 09:50

General

  • Target

    RFQ#JST20251120.exe

  • Size

    816KB

  • MD5

    7d13669439d81a62e1b75ff99ef05a3a

  • SHA1

    1dd313870e4b4e975e947eb940ba4276077c690b

  • SHA256

    09b07535f70e781223029114e4b7ac0b8d80fe63fa60c9196a43b002c099342d

  • SHA512

    463989f04237f7a4641777c1f6a8de1d74af447bda4e8eca9730282a42679bed59619f2bd284aff92dd5ff613b1ee997132917dd1b39850de6ee5e4ac53bfc9a

  • SSDEEP

    12288:3KOlbxrEU0IO8DfP0fn2ggdFa7SwtKzqqp28VOrL2+QZTWygTZMLA9B8ZDg6pml:6U/fPaOa7SE18289kvTSEl

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#JST20251120.exe
    "C:\Users\Admin\AppData\Local\Temp\RFQ#JST20251120.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4900
    • 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#JST20251120.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3268
    • C:\Users\Admin\AppData\Local\Temp\RFQ#JST20251120.exe
      "C:\Users\Admin\AppData\Local\Temp\RFQ#JST20251120.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:2760

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\RFQ#JST20251120.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_elj0qowz.iks.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/2760-11-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/2760-65-0x00000000092D0000-0x00000000097FC000-memory.dmp

    Filesize

    5.2MB

  • memory/2760-64-0x0000000008A90000-0x0000000008AE0000-memory.dmp

    Filesize

    320KB

  • memory/2760-63-0x0000000008BD0000-0x0000000008D92000-memory.dmp

    Filesize

    1.8MB

  • memory/2760-62-0x0000000075290000-0x0000000075A40000-memory.dmp

    Filesize

    7.7MB

  • memory/2760-33-0x0000000075290000-0x0000000075A40000-memory.dmp

    Filesize

    7.7MB

  • memory/2760-14-0x0000000075290000-0x0000000075A40000-memory.dmp

    Filesize

    7.7MB

  • memory/3268-32-0x0000000005D80000-0x00000000060D4000-memory.dmp

    Filesize

    3.3MB

  • memory/3268-37-0x00000000068E0000-0x0000000006912000-memory.dmp

    Filesize

    200KB

  • memory/3268-61-0x0000000075290000-0x0000000075A40000-memory.dmp

    Filesize

    7.7MB

  • memory/3268-58-0x0000000007960000-0x0000000007968000-memory.dmp

    Filesize

    32KB

  • memory/3268-57-0x0000000007980000-0x000000000799A000-memory.dmp

    Filesize

    104KB

  • memory/3268-56-0x0000000007880000-0x0000000007894000-memory.dmp

    Filesize

    80KB

  • memory/3268-16-0x0000000001230000-0x0000000001266000-memory.dmp

    Filesize

    216KB

  • memory/3268-17-0x00000000056E0000-0x0000000005D08000-memory.dmp

    Filesize

    6.2MB

  • memory/3268-18-0x0000000005450000-0x0000000005472000-memory.dmp

    Filesize

    136KB

  • memory/3268-19-0x0000000075290000-0x0000000075A40000-memory.dmp

    Filesize

    7.7MB

  • memory/3268-21-0x0000000005D10000-0x0000000005D76000-memory.dmp

    Filesize

    408KB

  • memory/3268-55-0x0000000007870000-0x000000000787E000-memory.dmp

    Filesize

    56KB

  • memory/3268-20-0x00000000054F0000-0x0000000005556000-memory.dmp

    Filesize

    408KB

  • memory/3268-54-0x0000000007840000-0x0000000007851000-memory.dmp

    Filesize

    68KB

  • memory/3268-31-0x0000000075290000-0x0000000075A40000-memory.dmp

    Filesize

    7.7MB

  • memory/3268-53-0x00000000078C0000-0x0000000007956000-memory.dmp

    Filesize

    600KB

  • memory/3268-34-0x0000000075290000-0x0000000075A40000-memory.dmp

    Filesize

    7.7MB

  • memory/3268-35-0x0000000006310000-0x000000000632E000-memory.dmp

    Filesize

    120KB

  • memory/3268-36-0x0000000006350000-0x000000000639C000-memory.dmp

    Filesize

    304KB

  • memory/3268-52-0x00000000076B0000-0x00000000076BA000-memory.dmp

    Filesize

    40KB

  • memory/3268-38-0x0000000070CC0000-0x0000000070D0C000-memory.dmp

    Filesize

    304KB

  • memory/3268-48-0x00000000074D0000-0x00000000074EE000-memory.dmp

    Filesize

    120KB

  • memory/3268-49-0x0000000007500000-0x00000000075A3000-memory.dmp

    Filesize

    652KB

  • memory/3268-50-0x0000000007C80000-0x00000000082FA000-memory.dmp

    Filesize

    6.5MB

  • memory/3268-51-0x0000000007640000-0x000000000765A000-memory.dmp

    Filesize

    104KB

  • memory/4900-10-0x0000000002640000-0x00000000026CE000-memory.dmp

    Filesize

    568KB

  • memory/4900-6-0x0000000005060000-0x00000000050FC000-memory.dmp

    Filesize

    624KB

  • memory/4900-0-0x000000007529E000-0x000000007529F000-memory.dmp

    Filesize

    4KB

  • memory/4900-4-0x0000000004DE0000-0x0000000004DEA000-memory.dmp

    Filesize

    40KB

  • memory/4900-15-0x0000000075290000-0x0000000075A40000-memory.dmp

    Filesize

    7.7MB

  • memory/4900-7-0x0000000006080000-0x00000000060A6000-memory.dmp

    Filesize

    152KB

  • memory/4900-8-0x000000007529E000-0x000000007529F000-memory.dmp

    Filesize

    4KB

  • memory/4900-9-0x0000000075290000-0x0000000075A40000-memory.dmp

    Filesize

    7.7MB

  • memory/4900-5-0x0000000075290000-0x0000000075A40000-memory.dmp

    Filesize

    7.7MB

  • memory/4900-3-0x0000000004E10000-0x0000000004EA2000-memory.dmp

    Filesize

    584KB

  • memory/4900-2-0x0000000005320000-0x00000000058C4000-memory.dmp

    Filesize

    5.6MB

  • memory/4900-1-0x0000000000300000-0x00000000003D2000-memory.dmp

    Filesize

    840KB