Analysis

  • max time kernel
    149s
  • 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, 01:33

General

  • Target

    e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe

  • Size

    760KB

  • MD5

    e8e930faa09a1b2a7dd07ba412b70ad8

  • SHA1

    1af64e7e5c6cd6a6089196669809f0aac1d89b6b

  • SHA256

    d4cb0f461af9d253c3bd6a808e2a66f49bf9e20af31d789faa682b78887273f3

  • SHA512

    72061072c56fb650de78ea8e54e76be657ccf9dba3fdcf50619072e4774dc95faf8542cb1cd0de4ab933f14d61719a6b7a7cdf3fbe3b22ef34900529fa17d2ff

  • SSDEEP

    12288:ZTFsauL2TYH0M9w63cS2HyIueuc/fs/QbgsKn9Oczb2zqZBPA:ZTF5DI0M9RwHy0HsoksKnoczbuqZBPA

Malware Config

Extracted

Family

djvu

C2

http://astdg.top/nddddhsspen6/get.php

Attributes
  • extension

    .moqs

  • offline_id

    CatwRkqdYh2Jomn6DqwFoGgcSbDsle1xlE1NPtt1

  • payload_url

    http://securebiz.org/dl/build2.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-N3p42CffoV 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: 0318ewgfDd

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\e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1760
    • C:\Users\Admin\AppData\Local\Temp\e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1496
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\2f683abf-d8f6-4ae1-a1dc-2274929f9016" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:1636
      • C:\Users\Admin\AppData\Local\Temp\e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4336
        • C:\Users\Admin\AppData\Local\Temp\e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe
          "C:\Users\Admin\AppData\Local\Temp\e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:2196

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

          aa1b1bf5f32d7497f003b6e2d968ef7e

          SHA1

          051c64148348aaa8861b6f1ce57dd03ae353f50b

          SHA256

          ebde56dbfd8bc2d8274b6f8770771fbd783e65507bb313eabbd6aca0079fd3dc

          SHA512

          a719c376e224742b619d15143eee90904f6a56efb078cf352771a260bdcd713b3a11cf7beab797739655dc5489603a712df6ba879b5ad7a9863aaafe98341f93

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

          Filesize

          392B

          MD5

          fd0d9758b35237aaa6dad0c2145bf952

          SHA1

          46851ef8a1dc00af1e1863207b8e6c3a9971e5c7

          SHA256

          36b2e5f69af1590677d6de5c0dd262431254ecd0e3cd3b7c76167cd407294f80

          SHA512

          7f73138ebfb43745fb7114ddc2c37de80e6bc3be8caf1ccb87257a445c62d67cf473639524b8dcb8b4c25e4a825a651c09fe37266a560210531867423207fcad

        • C:\Users\Admin\AppData\Local\2f683abf-d8f6-4ae1-a1dc-2274929f9016\e8e930faa09a1b2a7dd07ba412b70ad8_JaffaCakes118.exe

          Filesize

          760KB

          MD5

          e8e930faa09a1b2a7dd07ba412b70ad8

          SHA1

          1af64e7e5c6cd6a6089196669809f0aac1d89b6b

          SHA256

          d4cb0f461af9d253c3bd6a808e2a66f49bf9e20af31d789faa682b78887273f3

          SHA512

          72061072c56fb650de78ea8e54e76be657ccf9dba3fdcf50619072e4774dc95faf8542cb1cd0de4ab933f14d61719a6b7a7cdf3fbe3b22ef34900529fa17d2ff

        • memory/1496-5-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1496-15-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1496-6-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1496-3-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1496-4-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1760-1-0x0000000002560000-0x0000000002601000-memory.dmp

          Filesize

          644KB

        • memory/1760-2-0x0000000002650000-0x000000000276B000-memory.dmp

          Filesize

          1.1MB

        • memory/2196-20-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2196-22-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2196-21-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2196-27-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2196-28-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2196-29-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2196-31-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2196-33-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2196-34-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2196-35-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2196-37-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4336-18-0x0000000002560000-0x00000000025F9000-memory.dmp

          Filesize

          612KB