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Analysis

  • max time kernel
    146s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    22/12/2024, 11:39

General

  • Target

    JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe

  • Size

    783KB

  • MD5

    2adedc39f822fa5e267cf3891af3fe2d

  • SHA1

    a2660f71a9f1bdfb42c853bb6c4fc9fd762a67b2

  • SHA256

    4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5

  • SHA512

    96ed8ceef6864e348f07bd27720434c3520b6f585953a898bde190be0a6e1501ddd2322528fa7542c48d2bf8e63b8e5e8573ccd9028aae0d4fe1c3d1cdf27a54

  • SSDEEP

    12288:+RVoq1sBzVgxeW7RjsykaADcjxg13WKlHs8XByGFacVz//2rcI9najt2HIr1sO6z:WX2z0e2jADI8b+8RVzUcIS2HIWvp

Malware Config

Extracted

Family

djvu

C2

http://fuyt.org/test1/get.php

Attributes
  • extension

    .ghas

  • 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: 0445JIjdm

rsa_pubkey.plain

Signatures

  • Detected Djvu ransomware 15 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

  • Djvu family
  • 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 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2328
    • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe"
      2⤵
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2616
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\c388e415-82bc-461e-acb5-7b82243f3ad0" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        • System Location Discovery: System Language Discovery
        PID:472
      • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe
        "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2876
        • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe
          "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:3052

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

    7c97fd99763218177802908a58c56f9f

    SHA1

    64e6fd32dca24a89e053d5e978263a863f1bb7dc

    SHA256

    a70e7e9283e0165e5eec64a5ee78a14b157c2544053ca39c0b7e3a9f0fbdb103

    SHA512

    628f043a8c1aeb0d4b136185a57b6c8d34eaf43b6dc7951de373c261dcb58515d52974695074d41153efe46621d6bb28da95434a6a71ec37366820f2d1bbfe9f

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

    Filesize

    170B

    MD5

    f642a9107a0d2f0ea3493f36b01d02df

    SHA1

    1b0cb3dc51124ab5949c737a80ff2c2c32d0b688

    SHA256

    c01dabfe2ff148cbb2dcae6f14723191b0adb6e52887883ad3c05a64d5e2c4a7

    SHA512

    c4894e9e5da858c8f5656fd794c2bd0a53467c86900d0e26398b0a43ed37afd37edd6b22f5c4c86b7f2c980302f218696f101689460cb1f0b9cefba44d4e9c60

  • C:\Users\Admin\AppData\Local\Temp\Cab129.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\c388e415-82bc-461e-acb5-7b82243f3ad0\JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe

    Filesize

    783KB

    MD5

    2adedc39f822fa5e267cf3891af3fe2d

    SHA1

    a2660f71a9f1bdfb42c853bb6c4fc9fd762a67b2

    SHA256

    4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5

    SHA512

    96ed8ceef6864e348f07bd27720434c3520b6f585953a898bde190be0a6e1501ddd2322528fa7542c48d2bf8e63b8e5e8573ccd9028aae0d4fe1c3d1cdf27a54

  • memory/2328-0-0x0000000000220000-0x00000000002B1000-memory.dmp

    Filesize

    580KB

  • memory/2328-6-0x0000000000220000-0x00000000002B1000-memory.dmp

    Filesize

    580KB

  • memory/2328-2-0x00000000004F0000-0x000000000060B000-memory.dmp

    Filesize

    1.1MB

  • memory/2328-1-0x0000000000220000-0x00000000002B1000-memory.dmp

    Filesize

    580KB

  • memory/2616-8-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2616-9-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2616-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2616-27-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2616-5-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2876-28-0x0000000000220000-0x00000000002B1000-memory.dmp

    Filesize

    580KB

  • memory/2876-29-0x0000000000400000-0x00000000004EC000-memory.dmp

    Filesize

    944KB

  • memory/2876-34-0x0000000000400000-0x00000000004EC000-memory.dmp

    Filesize

    944KB

  • memory/3052-36-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3052-35-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3052-48-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3052-49-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3052-50-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3052-54-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3052-63-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3052-65-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3052-66-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3052-67-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB