Analysis

  • max time kernel
    146s
  • max time network
    154s
  • 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, 05:46

General

  • Target

    e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe

  • Size

    770KB

  • MD5

    1c020d417d5549c596a13af5dfb7710a

  • SHA1

    d1f64d8ca15f630ecedd0c0a9d029c92bdd9e9f3

  • SHA256

    e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca

  • SHA512

    28c2f404ebeaf893fe59bb8dbc61784b7c9fd844b9f93ec68ec3ffdfe04089bca4b920440c0d1ba0a9b930c1343e3b53f9ab8bfab8c333556f9189f1ed9077ff

  • SSDEEP

    12288:4GgVuusDHbpT8wLAzBkkYDs82CQ9KJlWRezsArPGz3mtMOCsGimISMx:HHbpT8DxYg82Em4/rPGLxJuSMx

Malware Config

Extracted

Family

djvu

C2

http://sajdfue.com/test2/get.php

Attributes
  • extension

    .uazq

  • offline_id

    Jx0i3k2ogR5cKxX1evmz0Ex7TUxOUlnbh2dvnIt1

  • payload_url

    http://sdfjhuz.com/dl/build2.exe

    http://sajdfue.com/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. Do not ask assistants from youtube and recovery data sites for help in recovering your data. They can use your free decryption quota and scam you. Our contact is emails in this text document only. You can get and look video overview decrypt tool: https://wetransfer.com/downloads/df01994dd8d37c2c33469922f8e7155a20240402134014/fd95b0 Price of private key and decrypt software is $999. Discount 50% available if you contact us first 72 hours, that's price for you is $499. 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: 0860PsawqS

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\e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe
    "C:\Users\Admin\AppData\Local\Temp\e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4312
    • C:\Users\Admin\AppData\Local\Temp\e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe
      "C:\Users\Admin\AppData\Local\Temp\e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2528
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\ce270310-9846-45f1-8119-8869ddda851b" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:1764
      • C:\Users\Admin\AppData\Local\Temp\e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe
        "C:\Users\Admin\AppData\Local\Temp\e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4160
        • C:\Users\Admin\AppData\Local\Temp\e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe
          "C:\Users\Admin\AppData\Local\Temp\e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:2596

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

          580071ebd24cccfd9268e1474bb8134e

          SHA1

          443665efe7009fe1d4c5bc4786dc9cc540e59ef6

          SHA256

          53e3fd53196b53d23b724612cf2704518edf3e979dca02f5674ac419b5f7b461

          SHA512

          13d52455d8a30a0af06c420cd01f13f55efc4c55b59883c5208bf4929352e7b783557bff6a157c4fc71a8e7cbfadf00d55eef8ebef4b984624d8feb116a960a4

        • 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

          f2cc36bbd15dd79e10a87a86c6fc1f58

          SHA1

          92e40906df698b5c151897186c2c6ba9d4d1910f

          SHA256

          6347ac203269f34d0127b483c2e8bba965c58d53a19aa9c7dee402fce9b8bcf2

          SHA512

          aaa97d375d19427ea85fa77e3105f4f79025d62a928b4702133d428322061d2dff2a0353f918bb365c8a3fbb9a8e198778848e2c3bb701a09c3d790da5e5fbc6

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

          Filesize

          392B

          MD5

          63ad7a39cf5c9671df82c6d294b49259

          SHA1

          5a4fbf8665e50a950a316be61db0d5fe2b440b73

          SHA256

          ad8742287e7c3f3ef8c6e0da37df3c0b415a9044cde1d4ad0ac5bb439008444f

          SHA512

          3c729ff31a789eac4ca13e4afb803a1aeb8740d8fe4f734220a043e7ef3933137bfdba1eaafd4195415ffb3b56b7357e2c081d7414bf7ea991e45ef015d3905c

        • C:\Users\Admin\AppData\Local\ce270310-9846-45f1-8119-8869ddda851b\e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe

          Filesize

          770KB

          MD5

          1c020d417d5549c596a13af5dfb7710a

          SHA1

          d1f64d8ca15f630ecedd0c0a9d029c92bdd9e9f3

          SHA256

          e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca

          SHA512

          28c2f404ebeaf893fe59bb8dbc61784b7c9fd844b9f93ec68ec3ffdfe04089bca4b920440c0d1ba0a9b930c1343e3b53f9ab8bfab8c333556f9189f1ed9077ff

        • memory/2528-5-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2528-4-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2528-16-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2528-3-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2528-6-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2596-20-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2596-34-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2596-21-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2596-37-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2596-36-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2596-35-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2596-27-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2596-28-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2596-29-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2596-32-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2596-22-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4160-18-0x0000000002F10000-0x0000000002FAD000-memory.dmp

          Filesize

          628KB

        • memory/4312-2-0x0000000004AA0000-0x0000000004BBB000-memory.dmp

          Filesize

          1.1MB

        • memory/4312-1-0x0000000004A00000-0x0000000004A99000-memory.dmp

          Filesize

          612KB