Analysis

  • max time kernel
    143s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-12-2024 19:56

General

  • Target

    JaffaCakes118_89defe919b41dfac8ac35c0e14634c0d75d4da66e3e27c7338adbad2e316174f.exe

  • Size

    784KB

  • MD5

    4c4005e3138397f94b8abec91925c73a

  • SHA1

    e18e77c134091225c790f3ec7528bf64b95c82a7

  • SHA256

    89defe919b41dfac8ac35c0e14634c0d75d4da66e3e27c7338adbad2e316174f

  • SHA512

    5692ff13677fe772155643d1c0ff35fd126ea8faf9cc800602b1bb5d24df6a828dca60d97a5c6a36a4127f62c300662a8dcda4093afb43ccb6bbc49c66f8552d

  • SSDEEP

    12288:S7sPl0BK3OeTnQ5EKaSaVX0qXF63bVDNIi4xX73lEV5B1TBinzewbPinWVAyxa9L:hl7zE5ED6YKbVDNI/p7IjewWVla9

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .qpss

  • offline_id

    miqhSGmGE63yWs53FTz0fnp8eCARpnaYE3O3p2t1

  • payload_url

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

    http://fuyt.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-0SLhZxAjRX 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: 0448JIjdm

rsa_pubkey.plain

Signatures

  • Detected Djvu ransomware 18 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\JaffaCakes118_89defe919b41dfac8ac35c0e14634c0d75d4da66e3e27c7338adbad2e316174f.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_89defe919b41dfac8ac35c0e14634c0d75d4da66e3e27c7338adbad2e316174f.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2548
    • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_89defe919b41dfac8ac35c0e14634c0d75d4da66e3e27c7338adbad2e316174f.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_89defe919b41dfac8ac35c0e14634c0d75d4da66e3e27c7338adbad2e316174f.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:3644
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\1168b6bd-f7b7-49fb-88e6-d6f827425df6" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        • System Location Discovery: System Language Discovery
        PID:2360
      • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_89defe919b41dfac8ac35c0e14634c0d75d4da66e3e27c7338adbad2e316174f.exe
        "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_89defe919b41dfac8ac35c0e14634c0d75d4da66e3e27c7338adbad2e316174f.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1712
        • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_89defe919b41dfac8ac35c0e14634c0d75d4da66e3e27c7338adbad2e316174f.exe
          "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_89defe919b41dfac8ac35c0e14634c0d75d4da66e3e27c7338adbad2e316174f.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:1040

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

    a986d693a79bae82dd4fd392f2f261c8

    SHA1

    5afad1cf53b852522d4b377ff56c2cdb1877e0ce

    SHA256

    ed5a4022bd402faf934a7030c501b42ed7419af8d633a28fa84c708906f7d3d4

    SHA512

    1b412bad6b13985373890c270689e5ee1e6d800caa6df78d9985c6c55b13f286731935cff8d579f0676de6b1355e364d55e2c9a3e41a6ae968962f0882b017e8

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

    Filesize

    170B

    MD5

    23be7fdbc3c63f7b32f753c496d2e3e8

    SHA1

    f6029e2c6ee60bb640f3cf70c4d5b7de2df952cf

    SHA256

    b43765ee2539b0f81cb96886adeb98693ecf7056b458658702eb243c2432f891

    SHA512

    5e13fadb918a413143fcb4edadbb1bb428e00ebaffc21b0d0802096264450e2fe2c3f02561ab548d4f36ec40067dcf26d4824bd21a0f9369a67c4967de4b216d

  • C:\Users\Admin\AppData\Local\1168b6bd-f7b7-49fb-88e6-d6f827425df6\JaffaCakes118_89defe919b41dfac8ac35c0e14634c0d75d4da66e3e27c7338adbad2e316174f.exe

    Filesize

    784KB

    MD5

    4c4005e3138397f94b8abec91925c73a

    SHA1

    e18e77c134091225c790f3ec7528bf64b95c82a7

    SHA256

    89defe919b41dfac8ac35c0e14634c0d75d4da66e3e27c7338adbad2e316174f

    SHA512

    5692ff13677fe772155643d1c0ff35fd126ea8faf9cc800602b1bb5d24df6a828dca60d97a5c6a36a4127f62c300662a8dcda4093afb43ccb6bbc49c66f8552d

  • memory/1040-31-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1040-44-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1040-49-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1040-48-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1040-23-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1040-24-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1040-25-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1040-47-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1040-46-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1040-41-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1040-33-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1040-32-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1712-26-0x0000000000400000-0x00000000004EC000-memory.dmp

    Filesize

    944KB

  • memory/1712-21-0x0000000000400000-0x00000000004EC000-memory.dmp

    Filesize

    944KB

  • memory/2548-2-0x0000000002230000-0x000000000234B000-memory.dmp

    Filesize

    1.1MB

  • memory/2548-1-0x00000000004F0000-0x000000000058D000-memory.dmp

    Filesize

    628KB

  • memory/3644-3-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3644-4-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3644-6-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3644-5-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3644-19-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB