Analysis

  • max time kernel
    121s
  • max time network
    134s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-01-2025 02:56

General

  • Target

    RFQ_TBD#00417566.exe

  • Size

    821KB

  • MD5

    429c7a3322bd34eafacec92baba5ec09

  • SHA1

    61bbaec2ed91d5885cb2ee21e23b781ac91824d9

  • SHA256

    071d0a5405c4bc0d3319aa4756ad6afb703c8462d1a6d616765eeae22dcdbd30

  • SHA512

    8181ee44d934d6303f4ad2414741d4b422cdc2b038332ed13330bc6c8b3eb75d57dd1905a976a24ba40a78a2634c11539338db141ada5e4e810c2bef464c4d33

  • SSDEEP

    12288:qKY00jgMZ9+x/KDUBfssWfQoIGEcFC/oqE1TqIKqmuUN93ANpe0:qKdjMZ9+x/pBEDfycFC/A1tZmV3el

Malware Config

Extracted

Family

vipkeylogger

Credentials

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 4 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 6 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\RFQ_TBD#00417566.exe
    "C:\Users\Admin\AppData\Local\Temp\RFQ_TBD#00417566.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:2216
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\cWGcrDZzGfui.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1444
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\cWGcrDZzGfui" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF184.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2052
    • C:\Users\Admin\AppData\Local\Temp\RFQ_TBD#00417566.exe
      "C:\Users\Admin\AppData\Local\Temp\RFQ_TBD#00417566.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:468

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\RFQ_TBD#00417566.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_koqgg4uf.cdu.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpF184.tmp

    Filesize

    1KB

    MD5

    a69b2473f6b2f7cec58723887b41f67c

    SHA1

    cea1d8c9c28ddc7fdcb7fcb0bcac35012440db02

    SHA256

    2a81213983e1ee913c1e66adddc56bdfc20658bd110c4b9162befffd7f9242cb

    SHA512

    b6d1a1d771882a1d21811ab423cae47842b5cdc1c44e9088768c192b7756efa21957b565ab0b84b831bdf2c41c2a499c7135f134f3e11cc0ad802ab7bfb6142a

  • memory/468-67-0x00000000747A0000-0x0000000074F50000-memory.dmp

    Filesize

    7.7MB

  • memory/468-66-0x00000000069C0000-0x0000000006A10000-memory.dmp

    Filesize

    320KB

  • memory/468-65-0x0000000006B20000-0x0000000006CE2000-memory.dmp

    Filesize

    1.8MB

  • memory/468-23-0x00000000747A0000-0x0000000074F50000-memory.dmp

    Filesize

    7.7MB

  • memory/468-20-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/1444-32-0x0000000005F00000-0x0000000005F66000-memory.dmp

    Filesize

    408KB

  • memory/1444-55-0x00000000078C0000-0x00000000078CA000-memory.dmp

    Filesize

    40KB

  • memory/1444-64-0x00000000747A0000-0x0000000074F50000-memory.dmp

    Filesize

    7.7MB

  • memory/1444-15-0x00000000747A0000-0x0000000074F50000-memory.dmp

    Filesize

    7.7MB

  • memory/1444-16-0x0000000002BF0000-0x0000000002C26000-memory.dmp

    Filesize

    216KB

  • memory/1444-61-0x0000000007B70000-0x0000000007B78000-memory.dmp

    Filesize

    32KB

  • memory/1444-18-0x00000000057A0000-0x0000000005DC8000-memory.dmp

    Filesize

    6.2MB

  • memory/1444-19-0x00000000747A0000-0x0000000074F50000-memory.dmp

    Filesize

    7.7MB

  • memory/1444-60-0x0000000007B90000-0x0000000007BAA000-memory.dmp

    Filesize

    104KB

  • memory/1444-59-0x0000000007A90000-0x0000000007AA4000-memory.dmp

    Filesize

    80KB

  • memory/1444-58-0x0000000007A80000-0x0000000007A8E000-memory.dmp

    Filesize

    56KB

  • memory/1444-57-0x0000000007A50000-0x0000000007A61000-memory.dmp

    Filesize

    68KB

  • memory/1444-30-0x0000000005660000-0x0000000005682000-memory.dmp

    Filesize

    136KB

  • memory/1444-56-0x0000000007AD0000-0x0000000007B66000-memory.dmp

    Filesize

    600KB

  • memory/1444-54-0x0000000007850000-0x000000000786A000-memory.dmp

    Filesize

    104KB

  • memory/1444-31-0x0000000005700000-0x0000000005766000-memory.dmp

    Filesize

    408KB

  • memory/1444-37-0x0000000006070000-0x00000000063C4000-memory.dmp

    Filesize

    3.3MB

  • memory/1444-38-0x0000000006500000-0x000000000651E000-memory.dmp

    Filesize

    120KB

  • memory/1444-39-0x0000000006A80000-0x0000000006ACC000-memory.dmp

    Filesize

    304KB

  • memory/1444-40-0x00000000074D0000-0x0000000007502000-memory.dmp

    Filesize

    200KB

  • memory/1444-41-0x0000000070240000-0x000000007028C000-memory.dmp

    Filesize

    304KB

  • memory/1444-51-0x0000000006AF0000-0x0000000006B0E000-memory.dmp

    Filesize

    120KB

  • memory/1444-52-0x0000000007710000-0x00000000077B3000-memory.dmp

    Filesize

    652KB

  • memory/1444-53-0x0000000007E90000-0x000000000850A000-memory.dmp

    Filesize

    6.5MB

  • memory/2216-0-0x00000000747AE000-0x00000000747AF000-memory.dmp

    Filesize

    4KB

  • memory/2216-9-0x0000000002680000-0x000000000270E000-memory.dmp

    Filesize

    568KB

  • memory/2216-4-0x0000000004F20000-0x0000000004F2A000-memory.dmp

    Filesize

    40KB

  • memory/2216-24-0x00000000747A0000-0x0000000074F50000-memory.dmp

    Filesize

    7.7MB

  • memory/2216-5-0x00000000747A0000-0x0000000074F50000-memory.dmp

    Filesize

    7.7MB

  • memory/2216-6-0x0000000005090000-0x00000000050AE000-memory.dmp

    Filesize

    120KB

  • memory/2216-7-0x00000000747AE000-0x00000000747AF000-memory.dmp

    Filesize

    4KB

  • memory/2216-8-0x00000000747A0000-0x0000000074F50000-memory.dmp

    Filesize

    7.7MB

  • memory/2216-10-0x000000000AB70000-0x000000000AC0C000-memory.dmp

    Filesize

    624KB

  • memory/2216-3-0x0000000004D60000-0x0000000004DF2000-memory.dmp

    Filesize

    584KB

  • memory/2216-2-0x0000000005220000-0x00000000057C4000-memory.dmp

    Filesize

    5.6MB

  • memory/2216-1-0x0000000000300000-0x00000000003D2000-memory.dmp

    Filesize

    840KB