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Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/12/2024, 06:18

General

  • Target

    e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe

  • Size

    760KB

  • MD5

    e5140e4645a51e56a877d65054c3315c

  • SHA1

    e0d69b2d8307a323a0971a3d91ab3bd47f394de9

  • SHA256

    e1b4d08ecd1ea054c62630c9bb9b289afbc6d29306a145ba571efe921c24cb8b

  • SHA512

    6a0b3da836373abd4d01f5b83ce6b92f178ac366ce07b11ab2a060f06c74436190caf5e616f919f0c25c234772ba37e862226758940c27906273ae4daf331b79

  • SSDEEP

    12288:W3lIze2M5rGFJdE0WGPtMKWkslXVoOpyXluNsPjRvWcfET9y3h9ZOy:W6MfW6XVoOpyXluNK/ET9y3fQ

Malware Config

Extracted

Family

djvu

C2

http://securebiz.org/fhsgtsspen6/get.php

Attributes
  • extension

    .rigd

  • offline_id

    gigF2ELYocnMQz77LhEpSoXvtYp2junk9HZFtJt1

  • payload_url

    http://znpst.top/dl/build2.exe

    http://securebiz.org/files/1/build3.exe

  • ransomnote

    ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-2zbBkO06mv Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0335gSd743d

rsa_pubkey.plain

Signatures

  • Detected Djvu ransomware 17 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

  • Djvu family
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Modifies file permissions 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 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 5 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4856
    • C:\Users\Admin\AppData\Local\Temp\e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3508
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\aab5c769-895c-446f-ba4e-33dead90181e" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        • System Location Discovery: System Language Discovery
        PID:3888
      • C:\Users\Admin\AppData\Local\Temp\e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1092
        • C:\Users\Admin\AppData\Local\Temp\e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe
          "C:\Users\Admin\AppData\Local\Temp\e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:5052

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8B2B9A00839EED1DFDCCC3BFC2F5DF12

    Filesize

    1KB

    MD5

    67e486b2f148a3fca863728242b6273e

    SHA1

    452a84c183d7ea5b7c015b597e94af8eef66d44a

    SHA256

    facaf1c3a4bf232abce19a2d534e495b0d3adc7dbe3797d336249aa6f70adcfb

    SHA512

    d3a37da3bb10a9736dc03e8b2b49baceef5d73c026e2077b8ebc1b786f2c9b2f807e0aa13a5866cf3b3cafd2bc506242ef139c423eaffb050bbb87773e53881e

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B46811C17859FFB409CF0E904A4AA8F8

    Filesize

    436B

    MD5

    971c514f84bba0785f80aa1c23edfd79

    SHA1

    732acea710a87530c6b08ecdf32a110d254a54c8

    SHA256

    f157ed17fcaf8837fa82f8b69973848c9b10a02636848f995698212a08f31895

    SHA512

    43dc1425d80e170c645a3e3bb56da8c3acd31bd637329e9e37094ac346ac85434df4edcdbefc05ae00aea33a80a88e2af695997a495611217fe6706075a63c58

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12

    Filesize

    174B

    MD5

    e5c5a28eb4b6ee230f70f386a054f80a

    SHA1

    792f0b959fa8c4b7b22c35a8a34af9c00c981aaf

    SHA256

    68987d7d909c52994a20afb15ca7f5b496e5c36fb33f08ab7c0c4c321fa36003

    SHA512

    41ff9817e633f198611f9bff1abdfe9e93c075de45ad1d529da65f69c64afdb43b8c4ee272245010be48c2821ef4527c01ee8552485b309958b4768d0f4d80a1

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8

    Filesize

    170B

    MD5

    fd2df56bfeed35353f455ac7ee7bc9f1

    SHA1

    e925a54a862dbb5b9adf1fb01159130218a24bf8

    SHA256

    58504933d9fb5a49da2bf98f30166a64e336462cd9840f6a0b1192a440ee1c1b

    SHA512

    7df4bc1ad3bb9d0e90fc7cbd9857cf3bed634769a672147d94fa2e83bcfcdf2245950337848b94809574b604036a6e1a62549d0a0c906ed69bc9bb6f4e775829

  • C:\Users\Admin\AppData\Local\aab5c769-895c-446f-ba4e-33dead90181e\e5140e4645a51e56a877d65054c3315c_JaffaCakes118.exe

    Filesize

    760KB

    MD5

    e5140e4645a51e56a877d65054c3315c

    SHA1

    e0d69b2d8307a323a0971a3d91ab3bd47f394de9

    SHA256

    e1b4d08ecd1ea054c62630c9bb9b289afbc6d29306a145ba571efe921c24cb8b

    SHA512

    6a0b3da836373abd4d01f5b83ce6b92f178ac366ce07b11ab2a060f06c74436190caf5e616f919f0c25c234772ba37e862226758940c27906273ae4daf331b79

  • memory/1092-22-0x0000000000400000-0x00000000008EE000-memory.dmp

    Filesize

    4.9MB

  • memory/1092-25-0x0000000000400000-0x00000000008EE000-memory.dmp

    Filesize

    4.9MB

  • memory/3508-6-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3508-19-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3508-5-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3508-4-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3508-3-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4856-1-0x0000000000F10000-0x0000000000FB2000-memory.dmp

    Filesize

    648KB

  • memory/4856-2-0x0000000000FC0000-0x00000000010DB000-memory.dmp

    Filesize

    1.1MB

  • memory/5052-24-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/5052-26-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/5052-23-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/5052-34-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/5052-33-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/5052-35-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/5052-37-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/5052-40-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/5052-39-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/5052-41-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/5052-43-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB