Overview

overview

10

Static

static

10

2024-03-08...ry.exe

windows7-x64

10

2024-03-08...ry.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-03-2024 11:34

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General

  • Target

    2024-03-08_c8442c67afe3f7e280c6e61d21967012_chaos_destroyer_wannacry.exe

  • Size

    25KB

  • MD5

    c8442c67afe3f7e280c6e61d21967012

  • SHA1

    29f679eaf365915eedf23f2fdb5f845d31efd423

  • SHA256

    d1b76aa2d80409484f1c3908adfadbe713dbf62f82765ea3317ff8210f9f1e37

  • SHA512

    f162dcc9f4d06d685188bde4fe58f8a74fc36acba3964170fb6fcfad22013d0ed893c8eb481ee18d7e044b4fc47755e8160c8011808adc1f9c636e74bdde70bb

  • SSDEEP

    384:zYenjLLAyI/1B7mwOcqNHPj6ABmFWcOVp91YWUxDG/:azfqweWbc9etxD8

Score
10/10
chaosevasionransomwarespywarestealer

Malware Config

Extracted

Path

C:\Users\Admin\3D Objects\read_it.txt

Ransom Note
All your files are encrypted. Your computer has been infected with a ransomware virus. Your files are encrypted and you will not be able to decrypt them without our help. What can you do to get your files back? You can buy our special decryption software, this software will allow you to recover all your data from your computer. The price of the software is 0.05 Bitcoin. Payment can only be made in Bitcoin. Make an payment to our Bitcoin address,after payment send a message with the text: id578363005, to e-mail address [email protected] After receiving bitcoins to us,we will send you software to recover your files in a reply message. Amount: 0.05 BTC Bitcoin address: 19ZMqCng2FjuoDkCZQMvVuMaaW7V19komh
Wallets

19ZMqCng2FjuoDkCZQMvVuMaaW7V19komh

Signatures

  • Chaos

    Ransomware family first seen in June 2021.

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

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Detects command variations typically used by ransomware 2 IoCs
  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
    ransomwareevasion
  • Renames multiple (175) 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 3 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
  • 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 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 47 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\2024-03-08_c8442c67afe3f7e280c6e61d21967012_chaos_destroyer_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-03-08_c8442c67afe3f7e280c6e61d21967012_chaos_destroyer_wannacry.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4336
    • 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
      • Drops desktop.ini file(s)
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3196
      • 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:3548
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:2024
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:4448
      • 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:4772
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:2732
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:972
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2544
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:2368
      • 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:4896
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3648
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3132
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:1008
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2680

    Network

    MITRE ATT&CK Enterprise v15

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    Downloads

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

      733B

      MD5

      3d6814cd217fc6a01c9ab54ea869f562

      SHA1

      5a416a63e739fc8abcb794eff2ff1966e9926746

      SHA256

      3c2dcb23d4b73e8ce0b2e8e94c312c78a673b23ecab6c7bb98b61db7fb1aeb57

      SHA512

      729a69f699e8d60d1810b6b101c6ec92cd6f3d735084901d309660e5f75a25f045c04e2c09f46fe8402dd1af19317ea2abfe6020ee321f8f3dde8fd1b3b48a80

      Download Submit

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\2024-03-08_c8442c67afe3f7e280c6e61d21967012_chaos_destroyer_wannacry.exe.log
      Filesize

      226B

      MD5

      28d7fcc2b910da5e67ebb99451a5f598

      SHA1

      a5bf77a53eda1208f4f37d09d82da0b9915a6747

      SHA256

      2391511d0a66ed9f84ae54254f51c09e43be01ad685db80da3201ec880abd49c

      SHA512

      2d8eb65cbf04ca506f4ef3b9ae13ccf05ebefab702269ba70ffd1ce9e6c615db0a3ee3ac0e81a06f546fc3250b7b76155dd51241c41b507a441b658c8e761df6

      Download Submit

    • C:\Users\Admin\AppData\Roaming\ConfirmAdd.bmp
      Filesize

      1B

      MD5

      d1457b72c3fb323a2671125aef3eab5d

      SHA1

      5bab61eb53176449e25c2c82f172b82cb13ffb9d

      SHA256

      8a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1

      SHA512

      ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0

      Download Submit

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

      25KB

      MD5

      c8442c67afe3f7e280c6e61d21967012

      SHA1

      29f679eaf365915eedf23f2fdb5f845d31efd423

      SHA256

      d1b76aa2d80409484f1c3908adfadbe713dbf62f82765ea3317ff8210f9f1e37

      SHA512

      f162dcc9f4d06d685188bde4fe58f8a74fc36acba3964170fb6fcfad22013d0ed893c8eb481ee18d7e044b4fc47755e8160c8011808adc1f9c636e74bdde70bb

      Download Submit

    • memory/3196-14-0x00007FFFC5C50000-0x00007FFFC6711000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/3196-1159-0x00007FFFC5C50000-0x00007FFFC6711000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/4336-0-0x0000000000930000-0x000000000093C000-memory.dmp

      Filesize

      48KB

      Download

    • memory/4336-1-0x00007FFFC5C50000-0x00007FFFC6711000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/4336-1158-0x00007FFFC5C50000-0x00007FFFC6711000-memory.dmp

      Filesize

      10.8MB

      Download