Analysis

  • max time kernel
    39s
  • max time network
    40s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-12-2024 18:09

General

  • Target

    test123.exe

  • Size

    397KB

  • MD5

    ac5a257992599ba6e64e705cff27a671

  • SHA1

    15854c4b735880e0aa384e85f306e4adf67140f5

  • SHA256

    4fba7c66c4fedc46793a324e514b073635a54ab72f9af9685b88c29297168de3

  • SHA512

    9af441aeb9fd4860aa3aa11ceefe68520f79b8e40a9be45f0ae37c2910ff52647c1299975ea1ba77e84d905fd46ab448971b1135b122496ffae55221ac9f3f66

  • SSDEEP

    12288:D92GgykqXIBXPtrJwZvXO/6hVGhGIcVO+HGgIOXK:R7sL

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\read_it.txt

Family

chaos

Ransom Note
----> Chaos is multi language ransomware. Translate your note to any language <---- All of your files have been encrypted Your computer was infected with a ransomware virus. Your files have been encrypted and you won't be able to decrypt them without our help.What can I do to get my files back?You can buy our special decryption software, this software will allow you to recover all of your data and remove the ransomware from your computer.The price for the software is $1,500. Payment can be made in Bitcoin only. How do I pay, where do I get Bitcoin? Purchasing Bitcoin varies from country to country, you are best advised to do a quick google search yourself to find out how to buy Bitcoin. Many of our customers have reported these sites to be fast and reliable: Coinmama - hxxps://www.coinmama.com Bitpanda - hxxps://www.bitpanda.com Payment informationAmount: 0.1473766 BTC Bitcoin Address: bc1qlnzcep4l4ac0ttdrq7awxev9ehu465f2vpt9x0

Signatures

  • Chaos

    Ransomware family first seen in June 2021.

  • Chaos Ransomware 2 IoCs
  • Chaos family
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

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

    Uses wbadmin.exe to inhibit system recovery.

  • 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 3 TTPs

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

  • Drops desktop.ini file(s) 34 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • 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.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Interacts with shadow copies 3 TTPs 1 IoCs

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

  • Modifies registry class 1 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 53 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 54 IoCs
  • Suspicious use of FindShellTrayWindow 28 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of WriteProcessMemory 64 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.

  • Uses Volume Shadow Copy service COM API

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\test123.exe
    "C:\Users\Admin\AppData\Local\Temp\test123.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3728
    • 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)
      • Sets desktop wallpaper using registry
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3604
      • 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:4648
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:2540
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:3216
      • 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:3472
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:1168
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:2040
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:324
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:1004
      • 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)
        • Suspicious use of FindShellTrayWindow
        PID:2740
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1788
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2032
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:3688
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2412
    • C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\Program Files\Google\Chrome\Application\chrome.exe"
      1⤵
      • Enumerates system info in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:4668
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=123.0.6312.123 --initial-client-data=0x118,0x11c,0x120,0xf4,0x124,0x7ffdccf3cc40,0x7ffdccf3cc4c,0x7ffdccf3cc58
        2⤵
          PID:2628
        • C:\Program Files\Google\Chrome\Application\chrome.exe
          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --no-appcompat-clear --gpu-preferences=WAAAAAAAAADgAAAMAAAAAAAAAAAAAAAAAABgAAEAAAA4AAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAAAAAAYAAAAAAAAAAgAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --field-trial-handle=2012,i,14625110282041563628,12954531971387689785,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=1944 /prefetch:2
          2⤵
            PID:4420
          • C:\Program Files\Google\Chrome\Application\chrome.exe
            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-appcompat-clear --field-trial-handle=1948,i,14625110282041563628,12954531971387689785,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=2132 /prefetch:3
            2⤵
              PID:1452
            • C:\Program Files\Google\Chrome\Application\chrome.exe
              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --no-appcompat-clear --field-trial-handle=2312,i,14625110282041563628,12954531971387689785,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=2476 /prefetch:8
              2⤵
                PID:3532
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --field-trial-handle=3164,i,14625110282041563628,12954531971387689785,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=3176 /prefetch:1
                2⤵
                  PID:4892
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --field-trial-handle=3196,i,14625110282041563628,12954531971387689785,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=3236 /prefetch:1
                  2⤵
                    PID:4840
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --field-trial-handle=4504,i,14625110282041563628,12954531971387689785,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=4488 /prefetch:1
                    2⤵
                      PID:5044
                  • C:\Program Files\Google\Chrome\Application\123.0.6312.123\elevation_service.exe
                    "C:\Program Files\Google\Chrome\Application\123.0.6312.123\elevation_service.exe"
                    1⤵
                      PID:2264

                    Network

                    MITRE ATT&CK Enterprise v15

                    Replay Monitor

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                    Downloads

                    • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\Network Persistent State

                      Filesize

                      1KB

                      MD5

                      e50da21f39d8d8cff2fdbc8afed2ffb9

                      SHA1

                      7b00ff684fa3127d7bbbcac37cc3977556197e87

                      SHA256

                      7953223dd7255669dd75d9810bce67580351efa7b21ab9bdfb2d373b1acd7d7f

                      SHA512

                      d268dce4ad2e561a536a70fef0b46a066cf6c47489df5d4aa36affe1d4dba2500b2e73b5497b5df91e22341a152c69e27907295d54fc26ab77473b41abfa4faf

                    • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\SCT Auditing Pending Reports

                      Filesize

                      2B

                      MD5

                      d751713988987e9331980363e24189ce

                      SHA1

                      97d170e1550eee4afc0af065b78cda302a97674c

                      SHA256

                      4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945

                      SHA512

                      b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af

                    • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity

                      Filesize

                      356B

                      MD5

                      49a1faddb7876b3a8b7403aad723278e

                      SHA1

                      296de96c3e76e7fb7a1b50ca807e161e3d4f9829

                      SHA256

                      90cc0c4de038744000cd7a2c8cb19bde8e4b92a94dd0a4ae240970ef1ec5db18

                      SHA512

                      2a8a9ac5b4cccb958caed307c8d5d48b080f6c71590762bb38f50de6e6ce5bdc3b961ed91fe41f87070936a10ed33205477867f75ac9a742b3ee0580c75e0e22

                    • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences

                      Filesize

                      8KB

                      MD5

                      92d8fcb4041298ceee6ff2f6ff1e7fac

                      SHA1

                      7b4abb380017cab4607b44e2b69d65580f6426b1

                      SHA256

                      6d171aa900c9d84f9ab16c01ae87130e5854f29e92cab7e8a5aaa3dd412af614

                      SHA512

                      d1ae2c57be85560a0b0ad9f7804fe0d003395da3f4b8f137487688e06ac724c10b2bd7b30064cdf4d91250399341bc1b9226c6e64e545c6ab7aee4cf95158d53

                    • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State

                      Filesize

                      116KB

                      MD5

                      71f93d7c07bb26f2977cbeb1b3ec15de

                      SHA1

                      bed50741bb41edd204ece76509ca6182a1450033

                      SHA256

                      3fccb62d2c58342e50e6ff0f35e8657201f33af1b76a8119eac7a88131d8b839

                      SHA512

                      a8a914c5c68ae3902151e40dad192460edbef38a6270a6f0c662e711ca4e23d9c74e9599b3a74ef371c66d6261e241cdbd86ab3b3ea4dfe02f755667ee31fe92

                    • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\ShaderCache\data_1

                      Filesize

                      264KB

                      MD5

                      f50f89a0a91564d0b8a211f8921aa7de

                      SHA1

                      112403a17dd69d5b9018b8cede023cb3b54eab7d

                      SHA256

                      b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec

                      SHA512

                      bf8cda48cf1ec4e73f0dd1d4fa5562af1836120214edb74957430cd3e4a2783e801fa3f4ed2afb375257caeed4abe958265237d6e0aacf35a9ede7a2e8898d58

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

                      Filesize

                      397KB

                      MD5

                      ac5a257992599ba6e64e705cff27a671

                      SHA1

                      15854c4b735880e0aa384e85f306e4adf67140f5

                      SHA256

                      4fba7c66c4fedc46793a324e514b073635a54ab72f9af9685b88c29297168de3

                      SHA512

                      9af441aeb9fd4860aa3aa11ceefe68520f79b8e40a9be45f0ae37c2910ff52647c1299975ea1ba77e84d905fd46ab448971b1135b122496ffae55221ac9f3f66

                    • C:\Users\Admin\Desktop\read_it.txt

                      Filesize

                      964B

                      MD5

                      4217b8b83ce3c3f70029a056546f8fd0

                      SHA1

                      487cdb5733d073a0427418888e8f7070fe782a03

                      SHA256

                      7d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121

                      SHA512

                      2a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740

                    • memory/3604-14-0x00007FFDD3500000-0x00007FFDD3FC1000-memory.dmp

                      Filesize

                      10.8MB

                    • memory/3604-90-0x00007FFDD3500000-0x00007FFDD3FC1000-memory.dmp

                      Filesize

                      10.8MB

                    • memory/3728-0-0x00007FFDD3503000-0x00007FFDD3505000-memory.dmp

                      Filesize

                      8KB

                    • memory/3728-1-0x0000000000850000-0x00000000008BA000-memory.dmp

                      Filesize

                      424KB