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Overview

overview

10

Static

static

10

230815-qwaqyaba29.exe

windows7-x64

10

230815-qwaqyaba29.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    147s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/04/2024, 03:41

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General

  • Target

    230815-qwaqyaba29.exe

  • Size

    27KB

  • MD5

    f680f45e190c032931f189ab71caecbc

  • SHA1

    02b52470aabee1a8f2700d902e249bf19ec0d945

  • SHA256

    05efe778c9253dc647b2667b4c821426a427607d3676e1d03a7e02c5b1e7279c

  • SHA512

    5647471f0fb9c01f7dd1767fafac4e40409fefac241caa4f64d86e42b7705f623a1cc7be49388dda76144261a3a7d3c42dd04ef134983ef15de0c10ddaef3294

  • SSDEEP

    384:3tWZPzzxAm1vaohWAdZ71+kezxBSKrvylvOy5o91z1rxYlf82vi:O7zxAmphxdZgke26Aho9dre826

Score
10/10
chaosevasionpersistenceransomwarespywarestealer

Malware Config

Signatures

  • Chaos

    Ransomware family first seen in June 2021.

    ransomwarechaos
  • Chaos Ransomware 5 IoCs
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Detects command variations typically used by ransomware 5 IoCs
  • Detects executables containing many references to VEEAM. Observed in ransomware 3 IoCs
  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
    ransomwareevasion
  • Renames multiple (169) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    ransomware
  • 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 2 IoCs

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

  • Drops startup file 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Drops desktop.ini file(s) 64 IoCs
  • 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.

  • Interacts with shadow copies 2 TTPs 1 IoCs

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

    ransomware
  • Modifies registry class 1 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
    ransomware
  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 48 IoCs
  • Suspicious use of AdjustPrivilegeToken 50 IoCs
  • Suspicious use of WriteProcessMemory 20 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\230815-qwaqyaba29.exe
    "C:\Users\Admin\AppData\Local\Temp\230815-qwaqyaba29.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3540
    • C:\Users\Admin\AppData\Roaming\allahuakbar.exe
      "C:\Users\Admin\AppData\Roaming\allahuakbar.exe"
      2⤵
      • Checks computer location settings
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops desktop.ini file(s)
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1636
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4596
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:2936
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1896
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4768
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:3512
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:2080
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4576
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:1364
      • C:\Windows\system32\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\how_to_decrypt.txt
        3⤵
        • Opens file in notepad (likely ransom note)
        PID:1428
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4120
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3752
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:1476
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:3448

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\3D Objects\how_to_decrypt.txt
      Filesize

      548B

      MD5

      86dd265b63202e1a43e0a13cacb15510

      SHA1

      c6f6dbd6423baf73333942ae3b8d5fec4da79be9

      SHA256

      65eb9a936236abc249335795b35e357fb807ae96977809acbdac45a6a79694b5

      SHA512

      d33885a468e279f98b2355f3748a5d5203af70e6276fd8bed0ebba5fb8ab1f6dfc19343d800d9d2bc63596984775f2bbe7b4d1c10fa05464b9568f1dc81cab20

      Download Submit

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\230815-qwaqyaba29.exe.log
      Filesize

      1KB

      MD5

      baf55b95da4a601229647f25dad12878

      SHA1

      abc16954ebfd213733c4493fc1910164d825cac8

      SHA256

      ee954c5d8156fd8890e582c716e5758ed9b33721258f10e758bdc31ccbcb1924

      SHA512

      24f502fedb1a305d0d7b08857ffc1db9b2359ff34e06d5748ecc84e35c985f29a20d9f0a533bea32d234ab37097ec0481620c63b14ac89b280e75e14d19fd545

      Download Submit

    • C:\Users\Admin\AppData\Roaming\allahuakbar.exe
      Filesize

      27KB

      MD5

      f680f45e190c032931f189ab71caecbc

      SHA1

      02b52470aabee1a8f2700d902e249bf19ec0d945

      SHA256

      05efe778c9253dc647b2667b4c821426a427607d3676e1d03a7e02c5b1e7279c

      SHA512

      5647471f0fb9c01f7dd1767fafac4e40409fefac241caa4f64d86e42b7705f623a1cc7be49388dda76144261a3a7d3c42dd04ef134983ef15de0c10ddaef3294

      Download Submit

    • C:\Users\Default\AppData\Roaming\Microsoft\Windows\SendTo\Fax Recipient.lnk
      Filesize

      1B

      MD5

      d1457b72c3fb323a2671125aef3eab5d

      SHA1

      5bab61eb53176449e25c2c82f172b82cb13ffb9d

      SHA256

      8a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1

      SHA512

      ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0

      Download Submit

    • memory/1636-16-0x00007FFCC8950000-0x00007FFCC9411000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/1636-17-0x000000001B850000-0x000000001B860000-memory.dmp

      Filesize

      64KB

      Download

    • memory/1636-1138-0x00007FFCC8950000-0x00007FFCC9411000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/1636-1139-0x000000001B850000-0x000000001B860000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3540-0-0x00000000001B0000-0x00000000001BE000-memory.dmp

      Filesize

      56KB

      Download

    • memory/3540-1-0x00007FFCC8950000-0x00007FFCC9411000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/3540-2-0x000000001AEB0000-0x000000001AEC0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3540-15-0x00007FFCC8950000-0x00007FFCC9411000-memory.dmp

      Filesize

      10.8MB

      Download