Analysis

  • max time kernel
    63s
  • max time network
    114s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    30/10/2024, 15:38

General

  • Target

    fb1087f5ae803f42c462f64d69e98d93fde21279c9f0be092c38c91caa20825fN.exe

  • Size

    733KB

  • MD5

    4f2f75603b3e569aa58e271df79065a0

  • SHA1

    72c2abd8b2fedb3a63ec239bf34d6ed722dbd8b3

  • SHA256

    fb1087f5ae803f42c462f64d69e98d93fde21279c9f0be092c38c91caa20825f

  • SHA512

    e32b9b4c75fb120c7111aa362e5d89e53ddfe2a0e427b9c7dc6afd1a9ef05274cceb73dfe668828a7aad071935fbb7b32a45709be6bec79a61f3275e5884764c

  • SSDEEP

    12288:MDkhMOoltiJleHU6o8lRK4Eh3tkZPejDMSurQrks8ZtaENCA6RbBUwuOB:MDkh5oDiJle0D3tkwjAXBs8Z0SGRaw

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 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\fb1087f5ae803f42c462f64d69e98d93fde21279c9f0be092c38c91caa20825fN.exe
    "C:\Users\Admin\AppData\Local\Temp\fb1087f5ae803f42c462f64d69e98d93fde21279c9f0be092c38c91caa20825fN.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2580
    • 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\fb1087f5ae803f42c462f64d69e98d93fde21279c9f0be092c38c91caa20825fN.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2400
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\koNbfQXa.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2560
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\koNbfQXa" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF058.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2808
    • C:\Users\Admin\AppData\Local\Temp\fb1087f5ae803f42c462f64d69e98d93fde21279c9f0be092c38c91caa20825fN.exe
      "C:\Users\Admin\AppData\Local\Temp\fb1087f5ae803f42c462f64d69e98d93fde21279c9f0be092c38c91caa20825fN.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:2216

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpF058.tmp

    Filesize

    1KB

    MD5

    4844fa70218cbabd45e927bb4a2adcc2

    SHA1

    cfe275acddfdc8dc64a8c12eb2c80a600bd10964

    SHA256

    712f6bedbe9674feb5dec833639541401181488e8d4813b0416e68e97204c280

    SHA512

    4b714a5aeedb220cc47708e12aa732f06bc80b59c3d50dd25a2cd5b16f8178adb450c00005fb788344814b12b4ea77f456899b2553bc31a2068be826fab42be9

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

    Filesize

    7KB

    MD5

    61f1e96a935f2bafebc91d56e0162272

    SHA1

    9832be8b0278bc72d20b147c609683c7393a9150

    SHA256

    a829770cb9a65918e1fee0bcc4f9c9e005e57cf559b2ee792d4d2e241a1d22a4

    SHA512

    76c48fb9f21e46d4aeaa54dac23b8a987a55572e0dceb06c756e14b88c8951d7b90a16fff207de9deef54440571392e3305fab79fd9b6b5f2b105e9895c71b0f

  • memory/2216-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2216-28-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2216-31-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2216-21-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2216-23-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2216-25-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2216-29-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2216-19-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2580-6-0x00000000052A0000-0x000000000532C000-memory.dmp

    Filesize

    560KB

  • memory/2580-1-0x0000000000E10000-0x0000000000ECE000-memory.dmp

    Filesize

    760KB

  • memory/2580-0-0x000000007426E000-0x000000007426F000-memory.dmp

    Filesize

    4KB

  • memory/2580-2-0x0000000074260000-0x000000007494E000-memory.dmp

    Filesize

    6.9MB

  • memory/2580-3-0x0000000000630000-0x000000000064C000-memory.dmp

    Filesize

    112KB

  • memory/2580-5-0x0000000074260000-0x000000007494E000-memory.dmp

    Filesize

    6.9MB

  • memory/2580-4-0x000000007426E000-0x000000007426F000-memory.dmp

    Filesize

    4KB

  • memory/2580-32-0x0000000074260000-0x000000007494E000-memory.dmp

    Filesize

    6.9MB