Analysis

  • max time kernel
    150s
  • max time network
    138s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    02-10-2024 23:40

General

  • Target

    0cefce0dbbbedc5eb1febe4d85b23c71_JaffaCakes118.exe

  • Size

    994KB

  • MD5

    0cefce0dbbbedc5eb1febe4d85b23c71

  • SHA1

    6aef7d5a462268c438c8417ee0da3f130b8aa84a

  • SHA256

    aaf1c2e67e9049fcbfd9f97302d78837769e1ad20fb2c4f35c69339e95845938

  • SHA512

    1311cf0b918419c192b3914a01e467430f445aaf6a003338e2176b1527c74263f658d8d39bd6d9c78b70324615101026767034798945d42d25215ee4d45654bf

  • SSDEEP

    12288:lnhtIy1hwrU6iArDokTOm4Ndc427rSWb3pM+Y9Mu506gK8uaBmuY:Nh+ykBxV4Ndc42PSWdq1JgUaB3Y

Malware Config

Extracted

Path

C:\ProgramData\esufwfj.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://onja764ig6vah2jo.onion.cab or http://onja764ig6vah2jo.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://onja764ig6vah2jo.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://onja764ig6vah2jo.onion.cab

http://onja764ig6vah2jo.tor2web.org

http://onja764ig6vah2jo.onion

Signatures

  • CTB-Locker

    Ransomware family which uses Tor to hide its C2 communications.

  • 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 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 44 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:600
    • C:\Windows\system32\DllHost.exe
      C:\Windows\system32\DllHost.exe /Processid:{AB8902B4-09CA-4BB6-B78D-A8F59079A8D5}
      2⤵
        PID:1232
      • C:\Windows\system32\wbem\wmiprvse.exe
        C:\Windows\system32\wbem\wmiprvse.exe -Embedding
        2⤵
          PID:1624
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
        • Sets desktop wallpaper using registry
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of UnmapMainImage
        PID:1184
        • C:\Users\Admin\AppData\Local\Temp\0cefce0dbbbedc5eb1febe4d85b23c71_JaffaCakes118.exe
          "C:\Users\Admin\AppData\Local\Temp\0cefce0dbbbedc5eb1febe4d85b23c71_JaffaCakes118.exe"
          2⤵
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2240
          • C:\Users\Admin\AppData\Local\Temp\0cefce0dbbbedc5eb1febe4d85b23c71_JaffaCakes118.exe
            "C:\Users\Admin\AppData\Local\Temp\0cefce0dbbbedc5eb1febe4d85b23c71_JaffaCakes118.exe"
            3⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:1320
      • C:\Windows\system32\taskeng.exe
        taskeng.exe {B1CA3C9F-AD57-4FDF-AAFE-F681F6D43714} S-1-5-18:NT AUTHORITY\System:Service:
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:2360
        • C:\Users\Admin\AppData\Local\Temp\xjlvlhd.exe
          C:\Users\Admin\AppData\Local\Temp\xjlvlhd.exe
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2896
          • C:\Users\Admin\AppData\Local\Temp\xjlvlhd.exe
            C:\Users\Admin\AppData\Local\Temp\xjlvlhd.exe
            3⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:772
            • C:\Windows\SysWOW64\vssadmin.exe
              vssadmin delete shadows all
              4⤵
              • System Location Discovery: System Language Discovery
              • Interacts with shadow copies
              PID:1696
            • C:\Users\Admin\AppData\Local\Temp\xjlvlhd.exe
              "C:\Users\Admin\AppData\Local\Temp\xjlvlhd.exe" -u
              4⤵
              • Executes dropped EXE
              • Suspicious use of SetThreadContext
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:2676
              • C:\Users\Admin\AppData\Local\Temp\xjlvlhd.exe
                "C:\Users\Admin\AppData\Local\Temp\xjlvlhd.exe" -u
                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:2756

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\ProgramData\Package Cache\mbyrakb

        Filesize

        654B

        MD5

        5c674deb7ef8e33e57ffd57343ce3ae5

        SHA1

        395c3296718765d8188df6ea1c750e8e3722d0e1

        SHA256

        5dd184b3982119b894b39a12dea1bc9dc6d5003a2a3ae04619c4e76d4e944783

        SHA512

        02583d608e68a3b5feb822cf41817c84bc7f4c4fbcfb283c14eae4953dea7a6299f4d05374a1d843d9d9f1e3fdf5e0ffde951026c7e040b327a06d645aa3dade

      • C:\ProgramData\Package Cache\mbyrakb

        Filesize

        654B

        MD5

        f8913d17cd782eff9280ce62822d66db

        SHA1

        236e2448585a50d640598cdc697989fadca9a04a

        SHA256

        c236d608557f5b54ae1b05ebeaf50f28dbe2a63d09aa4cb63b462a3d0d514af6

        SHA512

        e942f8aab232edc0602037992a731f64b807e8dde0499f9cb4417cd1ec1501fc3b51d46971781f1c2f18e4ad1578924f117e0228bbd220276d9d196b7778c648

      • C:\ProgramData\Package Cache\mbyrakb

        Filesize

        654B

        MD5

        43aff46ffa974ceb26ac9f3aa1b4bc9e

        SHA1

        95b8135977ab6a6072ef49db1c5f7f6fc56bd7ac

        SHA256

        a27cc11649dc9f82375aa42ce864efc0054b17920acfa1e29855d787c5802fbd

        SHA512

        e30fc1cdeb56eddb4f0137b011e9b955f39ad05f155f1d02c4a191abf8f7e6e842d4496bd2094a9b987964de999351225b8c32d3ad9b9beb54fc7c8b6faa55ff

      • C:\ProgramData\esufwfj.html

        Filesize

        62KB

        MD5

        604c89c5ec9a78ff5c2953eca03959b5

        SHA1

        51bcb31382c3f9b4a6a8d05f8e8278ea99be7b5a

        SHA256

        37e23081273533c42e10120c88e2192dc0d2510f55d83d1dacf0eacf7dc3d527

        SHA512

        66ae5714e8ef0ac2c896ad764713669f041367ddfd9689c7df7b79b51ec125eae6fd7d63aaa91b99520544fb5559027458bb433f530bb1f7c06f05cda167bac4

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

        Filesize

        994KB

        MD5

        0cefce0dbbbedc5eb1febe4d85b23c71

        SHA1

        6aef7d5a462268c438c8417ee0da3f130b8aa84a

        SHA256

        aaf1c2e67e9049fcbfd9f97302d78837769e1ad20fb2c4f35c69339e95845938

        SHA512

        1311cf0b918419c192b3914a01e467430f445aaf6a003338e2176b1527c74263f658d8d39bd6d9c78b70324615101026767034798945d42d25215ee4d45654bf

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

        Filesize

        129B

        MD5

        a526b9e7c716b3489d8cc062fbce4005

        SHA1

        2df502a944ff721241be20a9e449d2acd07e0312

        SHA256

        e1b9ce9b57957b1a0607a72a057d6b7a9b34ea60f3f8aa8f38a3af979bd23066

        SHA512

        d83d4c656c96c3d1809ad06ce78fa09a77781461c99109e4b81d1a186fc533a7e72d65a4cb7edf689eeccda8f687a13d3276f1111a1e72f7c3cd92a49bce0f88

      • memory/600-43-0x0000000000400000-0x0000000000477000-memory.dmp

        Filesize

        476KB

      • memory/600-55-0x0000000000400000-0x0000000000477000-memory.dmp

        Filesize

        476KB

      • memory/600-49-0x0000000000400000-0x0000000000477000-memory.dmp

        Filesize

        476KB

      • memory/600-51-0x0000000000400000-0x0000000000477000-memory.dmp

        Filesize

        476KB

      • memory/600-47-0x0000000000400000-0x0000000000477000-memory.dmp

        Filesize

        476KB

      • memory/600-54-0x0000000000400000-0x0000000000477000-memory.dmp

        Filesize

        476KB

      • memory/600-44-0x0000000000400000-0x0000000000477000-memory.dmp

        Filesize

        476KB

      • memory/600-41-0x0000000000400000-0x0000000000477000-memory.dmp

        Filesize

        476KB

      • memory/600-40-0x0000000000400000-0x0000000000477000-memory.dmp

        Filesize

        476KB

      • memory/600-1251-0x0000000000400000-0x0000000000477000-memory.dmp

        Filesize

        476KB

      • memory/772-1257-0x0000000000960000-0x0000000000BAB000-memory.dmp

        Filesize

        2.3MB

      • memory/772-29-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/772-37-0x0000000000960000-0x0000000000BAB000-memory.dmp

        Filesize

        2.3MB

      • memory/772-1273-0x0000000000960000-0x0000000000BAB000-memory.dmp

        Filesize

        2.3MB

      • memory/1320-7-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/1320-14-0x0000000000400000-0x00000000004A5000-memory.dmp

        Filesize

        660KB

      • memory/1320-15-0x0000000000850000-0x0000000000A6A000-memory.dmp

        Filesize

        2.1MB

      • memory/1320-3-0x0000000000400000-0x00000000004A5000-memory.dmp

        Filesize

        660KB

      • memory/1320-16-0x0000000000CB0000-0x0000000000EFB000-memory.dmp

        Filesize

        2.3MB

      • memory/1320-5-0x0000000000400000-0x00000000004A5000-memory.dmp

        Filesize

        660KB

      • memory/1320-13-0x0000000000400000-0x00000000004A5000-memory.dmp

        Filesize

        660KB

      • memory/2240-2-0x0000000074EC0000-0x000000007546B000-memory.dmp

        Filesize

        5.7MB

      • memory/2240-1-0x0000000074EC0000-0x000000007546B000-memory.dmp

        Filesize

        5.7MB

      • memory/2240-0-0x0000000074EC1000-0x0000000074EC2000-memory.dmp

        Filesize

        4KB

      • memory/2240-11-0x0000000074EC0000-0x000000007546B000-memory.dmp

        Filesize

        5.7MB

      • memory/2240-12-0x0000000074EC0000-0x000000007546B000-memory.dmp

        Filesize

        5.7MB

      • memory/2756-1287-0x0000000000DB0000-0x0000000000FFB000-memory.dmp

        Filesize

        2.3MB

      • memory/2756-1279-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2756-1284-0x0000000000DB0000-0x0000000000FFB000-memory.dmp

        Filesize

        2.3MB

      • memory/2756-1285-0x0000000000DB0000-0x0000000000FFB000-memory.dmp

        Filesize

        2.3MB

      • memory/2756-1288-0x0000000000DB0000-0x0000000000FFB000-memory.dmp

        Filesize

        2.3MB

      • memory/2756-1290-0x0000000000DB0000-0x0000000000FFB000-memory.dmp

        Filesize

        2.3MB

      • memory/2756-1294-0x0000000000DB0000-0x0000000000FFB000-memory.dmp

        Filesize

        2.3MB

      • memory/2896-22-0x0000000074DD0000-0x000000007537B000-memory.dmp

        Filesize

        5.7MB

      • memory/2896-21-0x0000000074DD0000-0x000000007537B000-memory.dmp

        Filesize

        5.7MB

      • memory/2896-20-0x0000000074DD1000-0x0000000074DD2000-memory.dmp

        Filesize

        4KB

      • memory/2896-24-0x0000000074DD0000-0x000000007537B000-memory.dmp

        Filesize

        5.7MB

      • memory/2896-33-0x0000000074DD0000-0x000000007537B000-memory.dmp

        Filesize

        5.7MB