Overview

overview

10

Static

static

10

cr4cked vixen.exe

windows7-x64

10

cr4cked vixen.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250211-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250211-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-02-2025 03:34

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General

  • Target

    cr4cked vixen.exe

  • Size

    27KB

  • MD5

    f3412def470db187f3a9b95ede250e73

  • SHA1

    65be90a1ad51bec8140cec84b49ea576f68696ee

  • SHA256

    8036cb4832edad45d44412716e288f9e354c30e88ea79958f66c1cd3c6e3cad4

  • SHA512

    640ae4dc939696cedeef764284fb1c86391c704d6ab65a6c48af1f4c0f63945ef38b41a3503d0075476aa1b4ba62bc71a73a4f91ece249a9b7432731997ce31f

  • SSDEEP

    384:4tWZPzzxAm1v85nIruz10CSGGCS6PNsnlyAOy5o91YVoL+82voP:N7zxAmAIruz10CGLkNiho9z682M

Score
10/10
chaosdefense_evasiondiscoveryevasionexecutionimpactpersistenceransomwarespywarestealer

Malware Config

Signatures

  • Chaos

    Ransomware family first seen in June 2021.

    ransomwarechaos
  • Chaos Ransomware 2 IoCs
  • Chaos family
    chaos
  • 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
    defense_evasion
  • Downloads MZ/PE file 1 IoCs
  • 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 3 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).

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

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

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

  • Interacts with shadow copies 3 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 44 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\cr4cked vixen.exe
    "C:\Users\Admin\AppData\Local\Temp\cr4cked vixen.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1800
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      "C:\Users\Admin\AppData\Roaming\svchost.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:2068
      • 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:1812
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:4576
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:4628
      • 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:4548
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:4936
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:4172
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4236
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:2108
      • C:\Windows\system32\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\read_it.txt
        3⤵
        • Opens file in notepad (likely ransom note)
        PID:5492
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1688
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3116
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:2228
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:4568
    • C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
      "C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSI0IiBpbnN0YWxsZGF0ZXRpbWU9IjE3MzkyODM0MTAiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4Mzc1NTUzNjg2NzAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1NDY2ODcyMjU5Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
      1⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      PID:3444

    Network

    MITRE ATT&CK Enterprise v15

    Reconnaissance

    Resource Development

    Initial Access

    Execution

    Command and Scripting Interpreter

    1
    T1059

    Windows Management Instrumentation

    1
    T1047

    Persistence

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Privilege Escalation

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Defense Evasion

    Direct Volume Access

    1
    T1006

    Indicator Removal

    3
    T1070

    File Deletion

    3
    T1070.004

    Modify Registry

    1
    T1112

    Credential Access

    Credentials from Password Stores

    1
    T1555

    Credentials from Web Browsers

    1
    T1555.003

    Unsecured Credentials

    1
    T1552

    Credentials In Files

    1
    T1552.001

    Discovery

    Peripheral Device Discovery

    1
    T1120

    Query Registry

    3
    T1012

    System Information Discovery

    3
    T1082

    System Location Discovery

    1
    T1614

    System Language Discovery

    1
    T1614.001

    System Network Configuration Discovery

    1
    T1016

    Internet Connection Discovery

    1
    T1016.001

    Lateral Movement

    Collection

    Data from Local System

    1
    T1005

    Command and Control

    Exfiltration

    Impact

    Inhibit System Recovery

    4
    T1490

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\cr4cked vixen.exe.log
      Filesize

      1KB

      MD5

      baf55b95da4a601229647f25dad12878

      SHA1

      abc16954ebfd213733c4493fc1910164d825cac8

      SHA256

      ee954c5d8156fd8890e582c716e5758ed9b33721258f10e758bdc31ccbcb1924

      SHA512

      24f502fedb1a305d0d7b08857ffc1db9b2359ff34e06d5748ecc84e35c985f29a20d9f0a533bea32d234ab37097ec0481620c63b14ac89b280e75e14d19fd545

      Download Submit

    • C:\Users\Admin\AppData\Local\read_it.txt
      Filesize

      510B

      MD5

      ca208aa04528e5b0d7fdb7691ae0851a

      SHA1

      b8599c39668429feefa6bf2b9fac4299219fb7d1

      SHA256

      cddf5d263ef9f30532f6a69dd5424dc6ae2082a7f2b3610d787b1590da55e328

      SHA512

      6b0e45ba3b9483830ce91a82b99564931bbab9439deddd4006c81d9d9d9dcefa8708c5b5b853858c628ef27f290a85334eb598802e1ac852cc2f489523b4001e

      Download Submit

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

      27KB

      MD5

      f3412def470db187f3a9b95ede250e73

      SHA1

      65be90a1ad51bec8140cec84b49ea576f68696ee

      SHA256

      8036cb4832edad45d44412716e288f9e354c30e88ea79958f66c1cd3c6e3cad4

      SHA512

      640ae4dc939696cedeef764284fb1c86391c704d6ab65a6c48af1f4c0f63945ef38b41a3503d0075476aa1b4ba62bc71a73a4f91ece249a9b7432731997ce31f

      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/1800-0-0x00007FFD37DA3000-0x00007FFD37DA5000-memory.dmp

      Filesize

      8KB

      Download

    • memory/1800-1-0x0000000000970000-0x000000000097E000-memory.dmp

      Filesize

      56KB

      Download

    • memory/1800-2-0x00007FFD37DA0000-0x00007FFD38861000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/1800-15-0x00007FFD37DA0000-0x00007FFD38861000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/2068-16-0x00007FFD37DA0000-0x00007FFD38861000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/2068-1279-0x00007FFD37DA0000-0x00007FFD38861000-memory.dmp

      Filesize

      10.8MB

      Download