Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/04/2024, 09:49

General

  • Target

    e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe

  • Size

    711KB

  • MD5

    e9b7be0e8c22db244de8af36e27a659d

  • SHA1

    4161eac953f65889890904479e43333e3969f409

  • SHA256

    76ee80e6da636e1751c2a9d7c7d4f18e3068babd79d8333961eaee1bca7c50e6

  • SHA512

    9863c1b1841c692f5206372763a62eace87e1a85a295c7acfa6e6dfc59b7d1531d56cb2e0a7886f0eb2c08824a4c9fd789866f2a1f353a4b867b57d7f74cc001

  • SSDEEP

    12288:YsQq4qRTKKrRZU8XdT0LAQIenXN14XXKH1ruCkL5/qwW/laO:sq4qlrs8XdAke911YLGMO

Malware Config

Extracted

Family

djvu

C2

http://astdg.top/fhsgtsspen6/get.php

Attributes
  • extension

    .hoop

  • offline_id

    922IaqlBU1I6IKX6eTDABuH3amHHwoa5qUSb8vt1

  • payload_url

    http://securebiz.org/dl/build2.exe

    http://astdg.top/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-I6qIbIYiz9 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: 0326gDrgo

rsa_pubkey.plain

Signatures

  • Detected Djvu ransomware 17 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP 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).

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2928
    • C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2244
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\2e0a74d6-697e-4453-8ee0-5abc3639c582" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:2008
      • C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1960
        • C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe
          "C:\Users\Admin\AppData\Local\Temp\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:3112

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

          Filesize

          1KB

          MD5

          fc5408c48a55314c72e200b74330cac4

          SHA1

          7e8889ec3189a40e6078088927bf3612753fa628

          SHA256

          7ea2a016d97635b1367455af2250cbf9e9c34d293829d11fc21ce905347590c4

          SHA512

          481753ef755c188012919ea728ea0395f22b6ce83f2f9a11675be6072f154db141b2382dc62ad7c3c95e36596529176a66f40e3d118cf0e33ea8e6f716ae1d77

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

          Filesize

          724B

          MD5

          8202a1cd02e7d69597995cabbe881a12

          SHA1

          8858d9d934b7aa9330ee73de6c476acf19929ff6

          SHA256

          58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5

          SHA512

          97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

          Filesize

          410B

          MD5

          d078ea4c02e5089e9b92bd62e9dedab3

          SHA1

          abac8c060bf17059915cc8f27c04ff70876e8c8e

          SHA256

          c3f8a299f7b7ae86d7bc4e1f6c77f78b406fe4e3d874ca4e53748dcabd613843

          SHA512

          f5ebcb741600b12c7523fcec38527c1703249d5620a93698ad294bc4fa638d9fd22294abd092edf501ed175105e198776494c1d847748c367786b0c7d99eed3e

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

          Filesize

          392B

          MD5

          0adb9743df5d307aefcb29770618facb

          SHA1

          fc21e18b0f37b106f360ea59fc99f4624981387c

          SHA256

          4dea5312eea6e8b893029b22758170c8cec558fe05902848a9a9445f9b0f9c0f

          SHA512

          8c6e2df1915538b1769d524366d3db2c16321899e55ae74fc776a4f97793d6b68bc4db10b9cb1166adc5816a4c2a86cf6aaa3751745541d35793d34f9389e4d6

        • C:\Users\Admin\AppData\Local\2e0a74d6-697e-4453-8ee0-5abc3639c582\e9b7be0e8c22db244de8af36e27a659d_JaffaCakes118.exe

          Filesize

          711KB

          MD5

          e9b7be0e8c22db244de8af36e27a659d

          SHA1

          4161eac953f65889890904479e43333e3969f409

          SHA256

          76ee80e6da636e1751c2a9d7c7d4f18e3068babd79d8333961eaee1bca7c50e6

          SHA512

          9863c1b1841c692f5206372763a62eace87e1a85a295c7acfa6e6dfc59b7d1531d56cb2e0a7886f0eb2c08824a4c9fd789866f2a1f353a4b867b57d7f74cc001

        • memory/1960-18-0x00000000047F0000-0x0000000004885000-memory.dmp

          Filesize

          596KB

        • memory/2244-4-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2244-15-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2244-6-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2244-3-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2244-5-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2928-1-0x0000000004AA0000-0x0000000004B33000-memory.dmp

          Filesize

          588KB

        • memory/2928-2-0x0000000004BE0000-0x0000000004CFB000-memory.dmp

          Filesize

          1.1MB

        • memory/3112-20-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3112-22-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3112-21-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3112-27-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3112-28-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3112-29-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3112-32-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3112-34-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3112-35-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3112-36-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3112-37-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB