Analysis

  • max time kernel
    126s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-11-2024 08:30

General

  • Target

    99e9a78e9273425218ba2f13341f35d355fc557e5ae08caa199ee060af43e1b1.exe

  • Size

    784KB

  • MD5

    a8751e8b102b8c302567e97f7a7e38b2

  • SHA1

    7cccc70baeb00dc525ca04283bd316bbd6882f5c

  • SHA256

    99e9a78e9273425218ba2f13341f35d355fc557e5ae08caa199ee060af43e1b1

  • SHA512

    c7426d2f825209c181eff884a6567a90cc06ba2e89291defdc4b016b1683bc9a6500e95cee3dc60229a9665f07fc1d9e802671f65b693c0ef251059c6ea99d6a

  • SSDEEP

    24576:5rMpzxW+C+1EZ8ZrXEhXDjedw3ngAtOdZ:+W5IE/IGtOd

Malware Config

Extracted

Family

vipkeylogger

C2

https://api.telegram.org/bot7354310989:AAFiywMtNTHtm7OibIYk_SgHQrpZnGJKZ0Q/sendMessage?chat_id=5308564409

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 1 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\99e9a78e9273425218ba2f13341f35d355fc557e5ae08caa199ee060af43e1b1.exe
    "C:\Users\Admin\AppData\Local\Temp\99e9a78e9273425218ba2f13341f35d355fc557e5ae08caa199ee060af43e1b1.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:3776
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\plEPfCfyDlNhYj.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4024
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\plEPfCfyDlNhYj" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEB1.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:4560
    • C:\Users\Admin\AppData\Local\Temp\99e9a78e9273425218ba2f13341f35d355fc557e5ae08caa199ee060af43e1b1.exe
      "C:\Users\Admin\AppData\Local\Temp\99e9a78e9273425218ba2f13341f35d355fc557e5ae08caa199ee060af43e1b1.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:4912

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qhtm2dc3.kh5.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpEB1.tmp

    Filesize

    1KB

    MD5

    44bb325b913a7716d2d4e44360b1abb5

    SHA1

    ddc1478759c5413ae3ad168168015ea2b5040d75

    SHA256

    8603e8a09bd914109caab74dbfc0d01f27c72ef5ab1dee32e853a76b7a89790a

    SHA512

    23a691ae6342345a44521152710edef8ee37f0849d9d9c56a35323028ad23812ee12d657b6d178108a71fee9d533687000dec5f13ecf2d522c7b0dfc12a080e9

  • memory/3776-6-0x00000000057E0000-0x000000000587C000-memory.dmp

    Filesize

    624KB

  • memory/3776-3-0x00000000055A0000-0x0000000005632000-memory.dmp

    Filesize

    584KB

  • memory/3776-4-0x00000000745B0000-0x0000000074D60000-memory.dmp

    Filesize

    7.7MB

  • memory/3776-5-0x0000000005570000-0x000000000557A000-memory.dmp

    Filesize

    40KB

  • memory/3776-2-0x0000000005B50000-0x00000000060F4000-memory.dmp

    Filesize

    5.6MB

  • memory/3776-7-0x00000000057D0000-0x00000000057E2000-memory.dmp

    Filesize

    72KB

  • memory/3776-8-0x00000000745BE000-0x00000000745BF000-memory.dmp

    Filesize

    4KB

  • memory/3776-9-0x00000000745B0000-0x0000000074D60000-memory.dmp

    Filesize

    7.7MB

  • memory/3776-10-0x0000000006340000-0x00000000063CE000-memory.dmp

    Filesize

    568KB

  • memory/3776-0-0x00000000745BE000-0x00000000745BF000-memory.dmp

    Filesize

    4KB

  • memory/3776-36-0x00000000745B0000-0x0000000074D60000-memory.dmp

    Filesize

    7.7MB

  • memory/3776-1-0x0000000000BE0000-0x0000000000CAA000-memory.dmp

    Filesize

    808KB

  • memory/4024-15-0x0000000004940000-0x0000000004976000-memory.dmp

    Filesize

    216KB

  • memory/4024-51-0x0000000006490000-0x00000000064AE000-memory.dmp

    Filesize

    120KB

  • memory/4024-22-0x00000000058A0000-0x0000000005906000-memory.dmp

    Filesize

    408KB

  • memory/4024-21-0x0000000005040000-0x00000000050A6000-memory.dmp

    Filesize

    408KB

  • memory/4024-64-0x00000000745B0000-0x0000000074D60000-memory.dmp

    Filesize

    7.7MB

  • memory/4024-20-0x0000000004E20000-0x0000000004E42000-memory.dmp

    Filesize

    136KB

  • memory/4024-61-0x0000000007520000-0x0000000007528000-memory.dmp

    Filesize

    32KB

  • memory/4024-25-0x0000000005910000-0x0000000005C64000-memory.dmp

    Filesize

    3.3MB

  • memory/4024-18-0x00000000745B0000-0x0000000074D60000-memory.dmp

    Filesize

    7.7MB

  • memory/4024-60-0x0000000007540000-0x000000000755A000-memory.dmp

    Filesize

    104KB

  • memory/4024-16-0x00000000745B0000-0x0000000074D60000-memory.dmp

    Filesize

    7.7MB

  • memory/4024-38-0x0000000005EC0000-0x0000000005EDE000-memory.dmp

    Filesize

    120KB

  • memory/4024-39-0x0000000006240000-0x000000000628C000-memory.dmp

    Filesize

    304KB

  • memory/4024-40-0x0000000007070000-0x00000000070A2000-memory.dmp

    Filesize

    200KB

  • memory/4024-41-0x0000000074E60000-0x0000000074EAC000-memory.dmp

    Filesize

    304KB

  • memory/4024-19-0x00000000050C0000-0x00000000056E8000-memory.dmp

    Filesize

    6.2MB

  • memory/4024-52-0x00000000070B0000-0x0000000007153000-memory.dmp

    Filesize

    652KB

  • memory/4024-54-0x0000000007200000-0x000000000721A000-memory.dmp

    Filesize

    104KB

  • memory/4024-53-0x0000000007850000-0x0000000007ECA000-memory.dmp

    Filesize

    6.5MB

  • memory/4024-55-0x0000000007280000-0x000000000728A000-memory.dmp

    Filesize

    40KB

  • memory/4024-56-0x0000000007480000-0x0000000007516000-memory.dmp

    Filesize

    600KB

  • memory/4024-57-0x0000000007400000-0x0000000007411000-memory.dmp

    Filesize

    68KB

  • memory/4024-58-0x0000000007430000-0x000000000743E000-memory.dmp

    Filesize

    56KB

  • memory/4024-59-0x0000000007440000-0x0000000007454000-memory.dmp

    Filesize

    80KB

  • memory/4912-37-0x00000000745B0000-0x0000000074D60000-memory.dmp

    Filesize

    7.7MB

  • memory/4912-26-0x00000000745B0000-0x0000000074D60000-memory.dmp

    Filesize

    7.7MB

  • memory/4912-23-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/4912-65-0x0000000006E40000-0x0000000007002000-memory.dmp

    Filesize

    1.8MB

  • memory/4912-66-0x0000000006CD0000-0x0000000006D20000-memory.dmp

    Filesize

    320KB

  • memory/4912-67-0x00000000745B0000-0x0000000074D60000-memory.dmp

    Filesize

    7.7MB

  • memory/4912-68-0x0000000007540000-0x0000000007A6C000-memory.dmp

    Filesize

    5.2MB

  • memory/4912-69-0x00000000745B0000-0x0000000074D60000-memory.dmp

    Filesize

    7.7MB