Overview

overview

10

Static

static

10

2024-02-12...ry.exe

windows7-x64

10

2024-02-12...ry.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    137s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-02-2024 00:49

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General

  • Target

    2024-02-12_cc50bf2e8d2193b639a290a0cbce692f_wannacry.exe

  • Size

    283KB

  • MD5

    cc50bf2e8d2193b639a290a0cbce692f

  • SHA1

    b0af443a898cfd67a7c3594386dcad58766a6173

  • SHA256

    898a15443ef7e862ba028d823670fbeb4952f6cbf33881bce0891e1f8b34bd7a

  • SHA512

    629094d36db5c661435b153cf50fb4b76e96d13a1b45c44d1d397f4f43c89c6fb27e89545a3d361f41abe1373022e7959df33ead35f27f0c4ebbb79ded5b9523

  • SSDEEP

    6144:v4Iq9NZl3CFqpmvVIaUQBFqwjJVCUpVgItzBeT:v4lOFqIEQB0wjJVC4VgItzB

Score
10/10
chaosevasionpersistenceransomwarespywarestealer

Malware Config

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
  • Detects executables containing many references to VEEAM. Observed in ransomware 2 IoCs
  • 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 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
  • 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.

  • 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\2024-02-12_cc50bf2e8d2193b639a290a0cbce692f_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-12_cc50bf2e8d2193b639a290a0cbce692f_wannacry.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2764
    • C:\Users\Admin\AppData\Roaming\dotnetsetupvipt.exe
      "C:\Users\Admin\AppData\Roaming\dotnetsetupvipt.exe"
      2⤵
      • Checks computer location settings
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops desktop.ini file(s)
      • Sets desktop wallpaper using registry
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2296
      • 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:644
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:1168
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2044
      • 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:2984
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:1884
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:3420
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1732
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:1068
      • C:\Windows\system32\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\Notice.txt
        3⤵
        • Opens file in notepad (likely ransom note)
        PID:4072
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4424
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3024
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:2160
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:4136

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

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

      555B

      MD5

      c687e0de6b1d18f91191d325358f38e2

      SHA1

      3b48aad123f5abbc04462a86d4007294cead6e90

      SHA256

      aab6d657796372bd330c66769628e8647c7cef6a793f4bb7f8fe97d33bbadd4c

      SHA512

      227eb8607ced19d8747b5031ad286f21ff85ad122ab1b68e0b16c1e3348dc5a89e4bac6683298e758aa97e37ff97a8a490d6b4da9d0fc54896f151c3e56cc67c

      Download Submit

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\2024-02-12_cc50bf2e8d2193b639a290a0cbce692f_wannacry.exe.log
      Filesize

      1KB

      MD5

      baf55b95da4a601229647f25dad12878

      SHA1

      abc16954ebfd213733c4493fc1910164d825cac8

      SHA256

      ee954c5d8156fd8890e582c716e5758ed9b33721258f10e758bdc31ccbcb1924

      SHA512

      24f502fedb1a305d0d7b08857ffc1db9b2359ff34e06d5748ecc84e35c985f29a20d9f0a533bea32d234ab37097ec0481620c63b14ac89b280e75e14d19fd545

      Download Submit

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

      283KB

      MD5

      cc50bf2e8d2193b639a290a0cbce692f

      SHA1

      b0af443a898cfd67a7c3594386dcad58766a6173

      SHA256

      898a15443ef7e862ba028d823670fbeb4952f6cbf33881bce0891e1f8b34bd7a

      SHA512

      629094d36db5c661435b153cf50fb4b76e96d13a1b45c44d1d397f4f43c89c6fb27e89545a3d361f41abe1373022e7959df33ead35f27f0c4ebbb79ded5b9523

      Download Submit

    • C:\Users\Admin\Desktop\CheckpointRestore.3g2
      Filesize

      1B

      MD5

      d1457b72c3fb323a2671125aef3eab5d

      SHA1

      5bab61eb53176449e25c2c82f172b82cb13ffb9d

      SHA256

      8a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1

      SHA512

      ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0

      Download Submit

    • memory/2296-15-0x00007FFAFEA80000-0x00007FFAFF541000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/2296-16-0x000000001B3A0000-0x000000001B3B0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2296-1016-0x00007FFAFEA80000-0x00007FFAFF541000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/2296-1017-0x000000001B3A0000-0x000000001B3B0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2764-0-0x0000000000390000-0x00000000003DC000-memory.dmp

      Filesize

      304KB

      Download

    • memory/2764-1-0x00007FFAFEA80000-0x00007FFAFF541000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/2764-2-0x000000001AF40000-0x000000001AF50000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2764-17-0x00007FFAFEA80000-0x00007FFAFF541000-memory.dmp

      Filesize

      10.8MB

      Download