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Analysis

  • max time kernel
    149s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    06/12/2024, 19:35

General

  • Target

    ceaaeb1712019d430836876402e557e0_JaffaCakes118.exe

  • Size

    714KB

  • MD5

    ceaaeb1712019d430836876402e557e0

  • SHA1

    2ab07d22fd77078e77aa3a635ad9d16f7b6a7fb1

  • SHA256

    7ab006f651a322f3e0a931b4c996ab6a0376848fcf2b105aa60ad1f0509cf11e

  • SHA512

    4923abc558f63f1c995592c08071fafbc7d6bdc9d45ad6ab1039bf929a5a4cb1396aaff1d334ecf8f27b1f6bdb313bf7f40996acb3bd6b2d86a9ca91d8bc7b4c

  • SSDEEP

    12288:bE21sNQUTjzo7nFcC6V0Wu+vvg7yXru6O55IENgC2QUT0uDYyuXdNfkd9R4au:JsNnD6evI7yb7MIabC0uh4dJQe

Malware Config

Extracted

Path

C:\ProgramData\ilimarf.html

Ransom Note
Your documents, photos, databases and other important files have been encrypted with strongest encryption and unique key, generated for this computer. Private decryption key is stored on a secret Internet server and nobody can decrypt your files until you pay and obtain the private key. If you see the main locker window, follow the instructions on the locker. Overwise, it's seems that you or your antivirus deleted the locker program. Now you have the last chance to decrypt your files. Open http://43qzvceo6ondd6wt.onion.cab or http://43qzvceo6ondd6wt.tor2web.org in your browser. They are public gates to the secret server. If you have problems with gates, use direct connection: 1. Download Tor Browser from http://torproject.org. 2. In the Tor Browser open the http://43qzvceo6ondd6wt.onion Note that this server is available via Tor Browser only. Retry in 1 hour if site is not reachable. Copy and paste the following public key in the input form on server. Avoid missprints. Follow the instructions on the server. The list of your encrypted files: Path File
URLs

http://43qzvceo6ondd6wt.onion.cab

http://43qzvceo6ondd6wt.tor2web.org

http://43qzvceo6ondd6wt.onion

Signatures

  • CTB-Locker

    Ransomware family which uses Tor to hide its C2 communications.

  • Ctblocker family
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 1 IoCs
  • Drops desktop.ini file(s) 2 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 1 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

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

  • Interacts with shadow copies 3 TTPs 1 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 23 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 41 IoCs

Processes

  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k DcomLaunch
    1⤵
    • Drops desktop.ini file(s)
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Modifies data under HKEY_USERS
    • Suspicious use of WriteProcessMemory
    PID:596
    • C:\Windows\system32\DllHost.exe
      C:\Windows\system32\DllHost.exe /Processid:{AB8902B4-09CA-4BB6-B78D-A8F59079A8D5}
      2⤵
        PID:1712
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
      • Sets desktop wallpaper using registry
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of UnmapMainImage
      PID:1196
      • C:\Users\Admin\AppData\Local\Temp\ceaaeb1712019d430836876402e557e0_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\ceaaeb1712019d430836876402e557e0_JaffaCakes118.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2676
        • C:\Users\Admin\AppData\Local\Temp\ceaaeb1712019d430836876402e557e0_JaffaCakes118.exe
          C:\Users\Admin\AppData\Local\Temp\ceaaeb1712019d430836876402e557e0_JaffaCakes118.exe
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:904
    • C:\Windows\system32\taskeng.exe
      taskeng.exe {63A5A893-28B7-4CBA-9BDE-D1F2AE14B191} S-1-5-18:NT AUTHORITY\System:Service:
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:1800
      • C:\Users\Admin\AppData\Local\Temp\amfztod.exe
        C:\Users\Admin\AppData\Local\Temp\amfztod.exe
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2508
        • C:\Users\Admin\AppData\Local\Temp\amfztod.exe
          C:\Users\Admin\AppData\Local\Temp\amfztod.exe
          3⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2440
          • C:\Windows\SysWOW64\vssadmin.exe
            vssadmin delete shadows all
            4⤵
            • System Location Discovery: System Language Discovery
            • Interacts with shadow copies
            PID:1164
          • C:\Users\Admin\AppData\Local\Temp\amfztod.exe
            "C:\Users\Admin\AppData\Local\Temp\amfztod.exe" -u
            4⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:752
            • C:\Users\Admin\AppData\Local\Temp\amfztod.exe
              C:\Users\Admin\AppData\Local\Temp\amfztod.exe
              5⤵
              • Checks computer location settings
              • Executes dropped EXE
              • Drops file in System32 directory
              • System Location Discovery: System Language Discovery
              • Modifies Internet Explorer settings
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of FindShellTrayWindow
              • Suspicious use of SendNotifyMessage
              • Suspicious use of SetWindowsHookEx
              PID:2152

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\ProgramData\Adobe\jyufvtj

      Filesize

      654B

      MD5

      feac0cee6f7c07439b1d4876b352c09b

      SHA1

      c3649267a091e950f0b7a944e8ff7125b29b8ee1

      SHA256

      3bf5bcb945be36f8dee653a15039043e0a1407a4d17fbed5189ed30993494d05

      SHA512

      21dba9f2a3cab758f726a8c382e5ff46fbaab8873a32ae79021b08df9e68654ebb65c0d5d2665f63bacbb1cb099528f9e033c71b34c949d16f7cf739f1fc6a2f

    • C:\ProgramData\Adobe\jyufvtj

      Filesize

      654B

      MD5

      35d1a9457c9260b206905d0a6e75a9fe

      SHA1

      23d7e7f824adfb390504ceaa0e4304eea450dcf3

      SHA256

      bb86774a8c0d2f85358a548971a5fd132ee42cab94cc045c82885f0be5db52c0

      SHA512

      e9afd10a6a3d55d14015181846bc90caa51f8e0ce0d78e351a3de17213b4d30670102ca16dfdcbb3fe94fe7380f5d29cbe62033ee52fcad729a070c3eeb33b28

    • C:\ProgramData\ilimarf.html

      Filesize

      63KB

      MD5

      2befab9fbbd712d6467806718946b886

      SHA1

      dc38ea4ac208c1b49ac8539561279a26178e0b06

      SHA256

      8e13f9fb46655601a634e8451dd59dcfbb9858c0894b9329e787b313f0298f4f

      SHA512

      4ddcd79046a9a96df45c262d1376022f2ea12267550d1d8a4e53e5dcc975ecc57d2c11fa2e315232afda70a991af1de070fb64a191f235c7b2bef9776c33f074

    • C:\Users\Admin\AppData\Local\Temp\amfztod.exe

      Filesize

      714KB

      MD5

      ceaaeb1712019d430836876402e557e0

      SHA1

      2ab07d22fd77078e77aa3a635ad9d16f7b6a7fb1

      SHA256

      7ab006f651a322f3e0a931b4c996ab6a0376848fcf2b105aa60ad1f0509cf11e

      SHA512

      4923abc558f63f1c995592c08071fafbc7d6bdc9d45ad6ab1039bf929a5a4cb1396aaff1d334ecf8f27b1f6bdb313bf7f40996acb3bd6b2d86a9ca91d8bc7b4c

    • F:\$RECYCLE.BIN\S-1-5-18\desktop.ini

      Filesize

      129B

      MD5

      a526b9e7c716b3489d8cc062fbce4005

      SHA1

      2df502a944ff721241be20a9e449d2acd07e0312

      SHA256

      e1b9ce9b57957b1a0607a72a057d6b7a9b34ea60f3f8aa8f38a3af979bd23066

      SHA512

      d83d4c656c96c3d1809ad06ce78fa09a77781461c99109e4b81d1a186fc533a7e72d65a4cb7edf689eeccda8f687a13d3276f1111a1e72f7c3cd92a49bce0f88

    • memory/596-52-0x0000000000400000-0x0000000000477000-memory.dmp

      Filesize

      476KB

    • memory/596-37-0x0000000000400000-0x0000000000477000-memory.dmp

      Filesize

      476KB

    • memory/596-1264-0x0000000000400000-0x0000000000477000-memory.dmp

      Filesize

      476KB

    • memory/596-51-0x0000000000400000-0x0000000000477000-memory.dmp

      Filesize

      476KB

    • memory/596-38-0x0000000000400000-0x0000000000477000-memory.dmp

      Filesize

      476KB

    • memory/596-40-0x0000000000400000-0x0000000000477000-memory.dmp

      Filesize

      476KB

    • memory/596-41-0x0000000000400000-0x0000000000477000-memory.dmp

      Filesize

      476KB

    • memory/596-46-0x0000000000400000-0x0000000000477000-memory.dmp

      Filesize

      476KB

    • memory/596-44-0x0000000000400000-0x0000000000477000-memory.dmp

      Filesize

      476KB

    • memory/596-48-0x0000000000400000-0x0000000000477000-memory.dmp

      Filesize

      476KB

    • memory/904-13-0x0000000028CA0000-0x0000000028EEB000-memory.dmp

      Filesize

      2.3MB

    • memory/904-11-0x0000000000400000-0x0000000001400000-memory.dmp

      Filesize

      16.0MB

    • memory/904-5-0x0000000000400000-0x0000000001400000-memory.dmp

      Filesize

      16.0MB

    • memory/904-15-0x0000000000401000-0x00000000004A5000-memory.dmp

      Filesize

      656KB

    • memory/904-7-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/904-12-0x0000000028A80000-0x0000000028C9A000-memory.dmp

      Filesize

      2.1MB

    • memory/904-3-0x0000000000400000-0x0000000001400000-memory.dmp

      Filesize

      16.0MB

    • memory/904-1-0x00000000001B0000-0x00000000002AA000-memory.dmp

      Filesize

      1000KB

    • memory/904-9-0x0000000000400000-0x0000000001400000-memory.dmp

      Filesize

      16.0MB

    • memory/2152-1301-0x0000000028BA0000-0x0000000028DEB000-memory.dmp

      Filesize

      2.3MB

    • memory/2152-1302-0x0000000028BA0000-0x0000000028DEB000-memory.dmp

      Filesize

      2.3MB

    • memory/2440-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2440-1276-0x0000000028C80000-0x0000000028ECB000-memory.dmp

      Filesize

      2.3MB

    • memory/2440-1287-0x0000000028C80000-0x0000000028ECB000-memory.dmp

      Filesize

      2.3MB

    • memory/2440-33-0x0000000000400000-0x00000000004A4600-memory.dmp

      Filesize

      657KB

    • memory/2440-34-0x0000000028C80000-0x0000000028ECB000-memory.dmp

      Filesize

      2.3MB

    • memory/2508-18-0x0000000000400000-0x0000000000405000-memory.dmp

      Filesize

      20KB

    • memory/2676-0-0x00000000002A0000-0x00000000002A4000-memory.dmp

      Filesize

      16KB