Overview

overview

10

Static

static

10

2a6a2534c8...bN.exe

windows7-x64

10

2a6a2534c8...bN.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    95s
  • max time network
    120s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-09-2024 16:18

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General

  • Target

    2a6a2534c8d79fba48aa150d4185a2b0255432f53a970796fc4e63d6cca9b3ebN.exe

  • Size

    1004KB

  • MD5

    9a3f0849830ad918343f6c4bfba13ef0

  • SHA1

    e8a1cfc2f8a2b33892a221b0d70ec6e01ac08113

  • SHA256

    2a6a2534c8d79fba48aa150d4185a2b0255432f53a970796fc4e63d6cca9b3eb

  • SHA512

    15329c02fbe9462c0c772d349edfb5f0ae57a808af57abf5a492cb66585aed3a8fcb7ced907e967e2a786eb7c0ebfde8dbcf5cc4ea9c0b281188b6b76c538983

  • SSDEEP

    12288:HzLLd1T7rLw7j0XodWAoNovmq8bgnnntE1++3DEhOKM88FAoZW68DaiSZeQ:HznwWoYAMovF6gtETTbi3a/eQ

Score
10/10
blackguarddefense_evasionevasionexecutionimpactransomwarespywarestealer

Malware Config

Signatures

  • BlackGuard

    Infostealer first seen in Late 2021.

    stealerblackguard
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution
  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
    ransomwareevasion
  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

    ransomware
  • Disables Task Manager via registry modification
    evasion
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Drops desktop.ini file(s) 64 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
    ransomware
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Checks SCSI registry key(s) 3 TTPs 4 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 1 IoCs
    evasion
  • Interacts with shadow copies 3 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

    ransomware
  • Kills process with taskkill 1 IoCs
    evasion
  • Modifies registry class 1 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
    ransomware
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 50 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\2a6a2534c8d79fba48aa150d4185a2b0255432f53a970796fc4e63d6cca9b3ebN.exe
    "C:\Users\Admin\AppData\Local\Temp\2a6a2534c8d79fba48aa150d4185a2b0255432f53a970796fc4e63d6cca9b3ebN.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Drops desktop.ini file(s)
    • Sets desktop wallpaper using registry
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:428
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3664
      • C:\Windows\system32\vssadmin.exe
        vssadmin delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:3968
      • C:\Windows\System32\Wbem\WMIC.exe
        wmic shadowcopy delete
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1172
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1148
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {default} bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:4000
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {default} recoveryenabled no
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:636
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4812
      • C:\Windows\system32\wbadmin.exe
        wbadmin delete catalog -quiet
        3⤵
        • Deletes backup catalog
        PID:1904
    • C:\Windows\system32\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\read_it.txt
      2⤵
      • Opens file in notepad (likely ransom note)
      PID:2256
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp664.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmp664.tmp.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1188
      • C:\Windows\system32\chcp.com
        chcp 65001
        3⤵
          PID:2560
        • C:\Windows\system32\taskkill.exe
          TaskKill /F /IM 428
          3⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:1804
        • C:\Windows\system32\timeout.exe
          Timeout /T 10 /Nobreak
          3⤵
          • Delays execution with timeout.exe
          PID:4308
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1368
    • C:\Windows\system32\wbengine.exe
      "C:\Windows\system32\wbengine.exe"
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4408
    • C:\Windows\System32\vdsldr.exe
      C:\Windows\System32\vdsldr.exe -Embedding
      1⤵
        PID:4828
      • C:\Windows\System32\vds.exe
        C:\Windows\System32\vds.exe
        1⤵
        • Checks SCSI registry key(s)
        PID:2476

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\ProgramData\Adobe\Setup\{AC76BA86-7AD7-1033-7B44-AC0F074E4100}\read_it.txt
        Filesize

        504B

        MD5

        d291fd25b4d676734e6504105895464f

        SHA1

        6e6c9eb8dc5a0c1d2ae5880eee5d1dc6a91033f4

        SHA256

        d737d2a9b119f38a456aa9a8472397c15595764d6624ec967caed851fbaf4ade

        SHA512

        d0352cd149eaeaf2616427b7846b0e967dc653722cc0a81e47bcdd2f4b3d0fb322c64ac35e10214aebf443f69b1268cdf06a470ca92b15cfe37aa9c5da0dddf6

        Download Submit

      • C:\Users\Admin\AppData\Local\Temp\tmp664.tmp.bat
        Filesize

        314B

        MD5

        47afa0b36627d1dde3ac1c3589449d2f

        SHA1

        73af1c96b37fd9f09e9eacfb05d53d82967769da

        SHA256

        1aeaaf21549e4d83a3793fb77ba1266db652e2ccfc1863e4ea1d32210fb83817

        SHA512

        d04a2683720ea9f2db159ae7d2fc9cbf5af4eb96058eb894735451ea42d736a786d3efa5369690ea23262755489a032006528639a208fa62a503510269ad1d63

        Download Submit

      • C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\Magnify.lnk
        Filesize

        1B

        MD5

        d1457b72c3fb323a2671125aef3eab5d

        SHA1

        5bab61eb53176449e25c2c82f172b82cb13ffb9d

        SHA256

        8a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1

        SHA512

        ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0

        Download Submit

      • memory/428-0-0x00007FFCFA393000-0x00007FFCFA395000-memory.dmp

        Filesize

        8KB

        Download

      • memory/428-1-0x0000011115EA0000-0x0000011115FA2000-memory.dmp

        Filesize

        1.0MB

        Download

      • memory/428-2-0x00007FFCFA390000-0x00007FFCFAE51000-memory.dmp

        Filesize

        10.8MB

        Download

      • memory/428-3-0x00007FFCFA393000-0x00007FFCFA395000-memory.dmp

        Filesize

        8KB

        Download

      • memory/428-4-0x00007FFCFA390000-0x00007FFCFAE51000-memory.dmp

        Filesize

        10.8MB

        Download

      • memory/428-1217-0x00007FFCFA390000-0x00007FFCFAE51000-memory.dmp

        Filesize

        10.8MB

        Download