Analysis

  • max time kernel
    122s
  • max time network
    144s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    03-10-2024 08:34

General

  • Target

    FACTURA.exe

  • Size

    865KB

  • MD5

    158d8d8e57ad1e305fce17d3e277cc6f

  • SHA1

    0ee2ca41f4b1898838fbd3c5c44baf124c21f4fb

  • SHA256

    51466536fb4a4b2f46c0344206795c49ca7a95ab1179c3c7c269a80623589477

  • SHA512

    4532aae393c59d63def7feb58bafa3530a7c77def52aa44892e76b72353f1fcd416ac388e8445be7041a370a72e4df692abbab899ff0a3afd9a87be4588d608b

  • SSDEEP

    12288:tTv21WRE10veA7aUJc+QS+shiCp++qsqwFnyZ7l:Fv2Q71W/OhPZryZ

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.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

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

  • 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 5 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 4 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\FACTURA.exe
    "C:\Users\Admin\AppData\Local\Temp\FACTURA.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2104
    • 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\FACTURA.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2760
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\jGcAjS.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2920
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jGcAjS" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCDBB.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2272
    • C:\Users\Admin\AppData\Local\Temp\FACTURA.exe
      "C:\Users\Admin\AppData\Local\Temp\FACTURA.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:2636

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    1KB

    MD5

    4bb91cb0a7ab4028665f109003720914

    SHA1

    a2aa16faeec2d30381a74b8a9af0daf1024a7f48

    SHA256

    c8d10fcbfa3b8876985a5c7e26428a36598acb6022adc0dd017ca8119dfaa6e3

    SHA512

    d78391dc36f36bf86a87fb3fb6974f85a5d436143b1932cbea6554ee57b43f5794dbd070a4242535d3db2748600b75d0254a4045ed2d8ded48d4543d0b9221cb

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

    Filesize

    7KB

    MD5

    6f30198a27f80b73d50a9a7cbda185c0

    SHA1

    541c2c6c4f2b39f5dd47541e3792b0ce299bfdfe

    SHA256

    d871d69e50c6cf1ba7715e9473f96aee81b995ce54640ac7ff2bc7accda3d685

    SHA512

    a016db27bacf4f3a079734e787d1d125ddb6b052e37a6c541a5e1bc72aa2fe93995f0e3e999445b752c733e18807aeeacf11bf3290daa0398abc561411da399a

  • memory/2104-4-0x000000007415E000-0x000000007415F000-memory.dmp

    Filesize

    4KB

  • memory/2104-31-0x0000000074150000-0x000000007483E000-memory.dmp

    Filesize

    6.9MB

  • memory/2104-0-0x000000007415E000-0x000000007415F000-memory.dmp

    Filesize

    4KB

  • memory/2104-5-0x0000000074150000-0x000000007483E000-memory.dmp

    Filesize

    6.9MB

  • memory/2104-6-0x00000000004F0000-0x000000000057C000-memory.dmp

    Filesize

    560KB

  • memory/2104-2-0x0000000074150000-0x000000007483E000-memory.dmp

    Filesize

    6.9MB

  • memory/2104-1-0x00000000001B0000-0x000000000028E000-memory.dmp

    Filesize

    888KB

  • memory/2104-3-0x00000000005D0000-0x00000000005EE000-memory.dmp

    Filesize

    120KB

  • memory/2636-19-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/2636-29-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/2636-30-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/2636-28-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/2636-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2636-25-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/2636-23-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/2636-21-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB