Analysis

  • max time kernel
    121s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    30-11-2024 14:18

General

  • Target

    c7ffefaa549c25376e488ab4c7a41a09493bb962f68658e39a49ac7cb21dacdd.exe

  • Size

    857KB

  • MD5

    3bc8fe52f28307cf921da1f1bdc448fb

  • SHA1

    0a213e9c8ace169379f108ccba01793ddcdc07f0

  • SHA256

    c7ffefaa549c25376e488ab4c7a41a09493bb962f68658e39a49ac7cb21dacdd

  • SHA512

    660d600323d9cfacbbca1f897d66e517693d10a316edc59e95ed02532a46dde7d7d0af0dbc9b750e3ee70bc0cf1b74fbc7fd7bcb2a257ea5d22c704b212353e3

  • SSDEEP

    24576:deq38JBG088vRAwGdZHczQh3Xq6iLlCFEY:2XG78ijFXq6iLsKY

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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c7ffefaa549c25376e488ab4c7a41a09493bb962f68658e39a49ac7cb21dacdd.exe
    "C:\Users\Admin\AppData\Local\Temp\c7ffefaa549c25376e488ab4c7a41a09493bb962f68658e39a49ac7cb21dacdd.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2060
    • 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\c7ffefaa549c25376e488ab4c7a41a09493bb962f68658e39a49ac7cb21dacdd.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2172
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\EUjCRllSu.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2924
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\EUjCRllSu" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1D9E.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2720
    • C:\Users\Admin\AppData\Local\Temp\c7ffefaa549c25376e488ab4c7a41a09493bb962f68658e39a49ac7cb21dacdd.exe
      "C:\Users\Admin\AppData\Local\Temp\c7ffefaa549c25376e488ab4c7a41a09493bb962f68658e39a49ac7cb21dacdd.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:1696

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp1D9E.tmp

    Filesize

    1KB

    MD5

    83277d94bd30d8f85575096a30e0a3cd

    SHA1

    a2c6b52f0fadadc6d8565c613aec77b134d55180

    SHA256

    a73c04e021f489369dcca7b55c4528aa588223d393a63ac9d6de41f5570921a0

    SHA512

    a43d54db4c050597049410e86058ba3628d26b0fa4221fc601645e2f7f1d478fe06e64fb0e0ba08c257f7bd8ba6e027292ac7ecf1c1ab4f4d01af55fee002f97

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

    Filesize

    7KB

    MD5

    6d7a984da2c68efa2b64d4b1a9eefe9f

    SHA1

    29f764ac113da5d90684e65967b32e60f852efed

    SHA256

    5e1ce2ebda26d987dfc0564440699cc5e51d1d3412ae6436eb28160cde2081da

    SHA512

    205a8b8297925fc2a93fd88bf42c0efa1bdc7f0168550cc21e91915f4c273243d97d7c5477ab8be5e188ab1a91d9de61ab5302e1a250a40c15f0b2dd289a0157

  • memory/1696-31-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/1696-21-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/1696-23-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/1696-25-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/1696-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1696-29-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/1696-28-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/1696-20-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2060-6-0x0000000005CF0000-0x0000000005D7C000-memory.dmp

    Filesize

    560KB

  • memory/2060-1-0x0000000000FC0000-0x000000000109C000-memory.dmp

    Filesize

    880KB

  • memory/2060-0-0x0000000074BCE000-0x0000000074BCF000-memory.dmp

    Filesize

    4KB

  • memory/2060-2-0x0000000074BC0000-0x00000000752AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2060-3-0x00000000004E0000-0x00000000004EE000-memory.dmp

    Filesize

    56KB

  • memory/2060-5-0x0000000074BC0000-0x00000000752AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2060-4-0x0000000074BCE000-0x0000000074BCF000-memory.dmp

    Filesize

    4KB

  • memory/2060-32-0x0000000074BC0000-0x00000000752AE000-memory.dmp

    Filesize

    6.9MB