Analysis

  • max time kernel
    73s
  • max time network
    129s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    21-11-2024 11:21

General

  • Target

    Request for Quotation MK FMHS.RFQ.24.11.21.bat.exe

  • Size

    994KB

  • MD5

    1ae7a890014eba9c807c6adeabac7671

  • SHA1

    e3b92645849a3e064d9fc401badf115dab013839

  • SHA256

    bba1825bd893328442cb891a35420a5da41a5431d1ade643f085c5992e763d3a

  • SHA512

    3a54469caeb4052cb4b842b30292e5ae00c9bf2a29f0d293d975d7bd0283d657c2fb4c9fd0df0797782eda78474a9eab5f8fa6d1ff66ceaf59f00e128fbab2d7

  • SSDEEP

    24576:Yij0gzjizxWgioJqE9p9jzOtXGnwaEalbcHNGtAlUDRL:1zjkW2H9p9PmXMOHNzUDB

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\Request for Quotation MK FMHS.RFQ.24.11.21.bat.exe
    "C:\Users\Admin\AppData\Local\Temp\Request for Quotation MK FMHS.RFQ.24.11.21.bat.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2528
    • 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\Request for Quotation MK FMHS.RFQ.24.11.21.bat.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:568
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\NuDUTBObHpKADz.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3064
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NuDUTBObHpKADz" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF289.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2792
    • C:\Users\Admin\AppData\Local\Temp\Request for Quotation MK FMHS.RFQ.24.11.21.bat.exe
      "C:\Users\Admin\AppData\Local\Temp\Request for Quotation MK FMHS.RFQ.24.11.21.bat.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:2500

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpF289.tmp

    Filesize

    1KB

    MD5

    dca4d160f282d38dcc4874aafc51e85e

    SHA1

    b6d419559a64ade313accf295811b0e745d292e1

    SHA256

    912941887e576ed0b3b5a50e6b66082773eac10e3340a073ebd81c86bafb17b2

    SHA512

    e5737c9beafde13f6945d95ec242179fb360f101965d6124372a40978e19e396fb08889b8f6d68fd2efd12576a417146f74fcdd0e694459f08c4963bb4f8ea47

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

    Filesize

    7KB

    MD5

    91ce63c2800e11be33231e9f54489cd1

    SHA1

    9c61b0b724396ea425c6523439350b9710e0a394

    SHA256

    b34d9c8fd8f170496b01b098a96b023919edae72686ac1de5fbfa3a43b0f0851

    SHA512

    0d9ccdd7e4644d4d702a583b1e054c7394e9a548d390e497b6863365595f2cf4d6a9ae488b141e450de5b33590523c7ac9227000209544b19a114141d3511eb1

  • memory/2500-29-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2500-28-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2500-21-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2500-23-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2500-25-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2500-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2500-31-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2500-19-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2528-6-0x0000000005380000-0x000000000540E000-memory.dmp

    Filesize

    568KB

  • memory/2528-1-0x00000000011E0000-0x00000000012DE000-memory.dmp

    Filesize

    1016KB

  • memory/2528-0-0x0000000074B1E000-0x0000000074B1F000-memory.dmp

    Filesize

    4KB

  • memory/2528-2-0x0000000074B10000-0x00000000751FE000-memory.dmp

    Filesize

    6.9MB

  • memory/2528-3-0x00000000004A0000-0x00000000004B2000-memory.dmp

    Filesize

    72KB

  • memory/2528-5-0x0000000074B10000-0x00000000751FE000-memory.dmp

    Filesize

    6.9MB

  • memory/2528-4-0x0000000074B1E000-0x0000000074B1F000-memory.dmp

    Filesize

    4KB

  • memory/2528-32-0x0000000074B10000-0x00000000751FE000-memory.dmp

    Filesize

    6.9MB