Analysis

  • max time kernel
    147s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-05-2024 14:43

General

  • Target

    2f82de6e51943d5f8e7f4ea209bbe01f6d89afe8ec870431aa77b600d21a30b3.exe

  • Size

    941KB

  • MD5

    7690b42fbbec7b6262aeb2ab5d91072a

  • SHA1

    e2e3c9814d48a230cede32e1ee6ef105957ca01d

  • SHA256

    2f82de6e51943d5f8e7f4ea209bbe01f6d89afe8ec870431aa77b600d21a30b3

  • SHA512

    b5f85d2962728601a09d5de88f3e06f667f6798ca77306b3c0aa46c7e0c37e85c0bc6c87863453c3537be6c6c83c4c6b0c0d6766b677929afbfb703001c1091a

  • SSDEEP

    24576:JjNkb6hlNveo/deb9FinFmt3/feebGI+dLRSMH:BGbolgUcb9O2feVJRS4

Malware Config

Extracted

Family

djvu

C2

http://jiqaz.com/test1/get.php

Attributes
  • extension

    .hhmm

  • offline_id

    dMMXkgwQTycP13C5xwPbHDSzhx1ZxiPgIMZXewt1

  • payload_url

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

    http://jiqaz.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. You can get and look video overview decrypt tool: https://we.tl/t-UQkYLBSiQ4 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: 0646JOsie

rsa_pubkey.plain

Signatures

  • Detected Djvu ransomware 16 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\2f82de6e51943d5f8e7f4ea209bbe01f6d89afe8ec870431aa77b600d21a30b3.exe
    "C:\Users\Admin\AppData\Local\Temp\2f82de6e51943d5f8e7f4ea209bbe01f6d89afe8ec870431aa77b600d21a30b3.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4296
    • C:\Users\Admin\AppData\Local\Temp\2f82de6e51943d5f8e7f4ea209bbe01f6d89afe8ec870431aa77b600d21a30b3.exe
      "C:\Users\Admin\AppData\Local\Temp\2f82de6e51943d5f8e7f4ea209bbe01f6d89afe8ec870431aa77b600d21a30b3.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2680
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\584b0dbd-d2b9-4521-9397-10c4e39266eb" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:3452
      • C:\Users\Admin\AppData\Local\Temp\2f82de6e51943d5f8e7f4ea209bbe01f6d89afe8ec870431aa77b600d21a30b3.exe
        "C:\Users\Admin\AppData\Local\Temp\2f82de6e51943d5f8e7f4ea209bbe01f6d89afe8ec870431aa77b600d21a30b3.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:3772
        • C:\Users\Admin\AppData\Local\Temp\2f82de6e51943d5f8e7f4ea209bbe01f6d89afe8ec870431aa77b600d21a30b3.exe
          "C:\Users\Admin\AppData\Local\Temp\2f82de6e51943d5f8e7f4ea209bbe01f6d89afe8ec870431aa77b600d21a30b3.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:4236
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4080 --field-trial-handle=2744,i,16362475727591565961,3676688664819797550,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:232

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Persistence

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Privilege Escalation

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Defense Evasion

    File and Directory Permissions Modification

    1
    T1222

    Modify Registry

    1
    T1112

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      1KB

      MD5

      66d1f71702c1ef556dedf6366558c482

      SHA1

      1351a8d97e101fd17381d7d0dc232af4b08b86c0

      SHA256

      f001a03aa71c553fe7bb4e9fe8e42d495ae726c657d8542ff8f1a6041c1be8f4

      SHA512

      ba6909f4997d6ad9211a5d660c2c4ef2a0cf5560f49f0b21c353ee4e400ec06f625640a46ac1300944d53dd2c025f9c10467013a15857d9f7946c5206b7cc672

    • 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

      51a811b178374343a250ada6d33efc7d

      SHA1

      ebe6e03a89e642ed4fd46dd575379fdc7cbbe45b

      SHA256

      7fc9f4004ec59cf1b48eb2d0cd63d1f4fdc825c7bee2547f32ea313572d11ebb

      SHA512

      dc19aed19944a0a391a427f5e2200df6658675ccf853f88c74c6db04aebc3b57c750d2e64606865d1ab313499c07d45b5c1dd405643c7ca0256bd27a848c8fc7

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

      392B

      MD5

      bc6dd15a2de62dc6eeb01e55fd1ba154

      SHA1

      cd877b02b787954f2c6a14fe04253e1d9eb1ac4d

      SHA256

      dea83f00df35ce9755e21e900189a5acb5ab57de602099c43d59e0d5ff139122

      SHA512

      9b8ed36656f86d3a800a5c3ffd655a6f34e3590e50fa6212dfccb73ee5ce3015abcfaf8a955e08fdca73f69fb23803680a19ed294c1d31468101c88156a4222d

    • C:\Users\Admin\AppData\Local\584b0dbd-d2b9-4521-9397-10c4e39266eb\2f82de6e51943d5f8e7f4ea209bbe01f6d89afe8ec870431aa77b600d21a30b3.exe
      Filesize

      941KB

      MD5

      7690b42fbbec7b6262aeb2ab5d91072a

      SHA1

      e2e3c9814d48a230cede32e1ee6ef105957ca01d

      SHA256

      2f82de6e51943d5f8e7f4ea209bbe01f6d89afe8ec870431aa77b600d21a30b3

      SHA512

      b5f85d2962728601a09d5de88f3e06f667f6798ca77306b3c0aa46c7e0c37e85c0bc6c87863453c3537be6c6c83c4c6b0c0d6766b677929afbfb703001c1091a

    • memory/2680-11-0x0000000000400000-0x0000000000537000-memory.dmp
      Filesize

      1.2MB

    • memory/2680-12-0x0000000000400000-0x0000000000537000-memory.dmp
      Filesize

      1.2MB

    • memory/2680-28-0x0000000000400000-0x0000000000537000-memory.dmp
      Filesize

      1.2MB

    • memory/2680-25-0x0000000000400000-0x0000000000537000-memory.dmp
      Filesize

      1.2MB

    • memory/2680-10-0x0000000000400000-0x0000000000537000-memory.dmp
      Filesize

      1.2MB

    • memory/2680-16-0x0000000000400000-0x0000000000537000-memory.dmp
      Filesize

      1.2MB

    • memory/3772-33-0x0000000000400000-0x0000000000618000-memory.dmp
      Filesize

      2.1MB

    • memory/3772-32-0x0000000000400000-0x0000000000618000-memory.dmp
      Filesize

      2.1MB

    • memory/3772-38-0x0000000000400000-0x0000000000618000-memory.dmp
      Filesize

      2.1MB

    • memory/3772-29-0x0000000000400000-0x0000000000618000-memory.dmp
      Filesize

      2.1MB

    • memory/3772-34-0x0000000000400000-0x0000000000618000-memory.dmp
      Filesize

      2.1MB

    • memory/3772-35-0x0000000000400000-0x0000000000618000-memory.dmp
      Filesize

      2.1MB

    • memory/3772-31-0x0000000000880000-0x0000000000881000-memory.dmp
      Filesize

      4KB

    • memory/3772-30-0x0000000000400000-0x0000000000618000-memory.dmp
      Filesize

      2.1MB

    • memory/4236-56-0x0000000000400000-0x0000000000537000-memory.dmp
      Filesize

      1.2MB

    • memory/4236-55-0x0000000000400000-0x0000000000537000-memory.dmp
      Filesize

      1.2MB

    • memory/4236-46-0x0000000000400000-0x0000000000537000-memory.dmp
      Filesize

      1.2MB

    • memory/4236-47-0x0000000000400000-0x0000000000537000-memory.dmp
      Filesize

      1.2MB

    • memory/4236-54-0x0000000000400000-0x0000000000537000-memory.dmp
      Filesize

      1.2MB

    • memory/4236-53-0x0000000000400000-0x0000000000537000-memory.dmp
      Filesize

      1.2MB

    • memory/4236-48-0x0000000000400000-0x0000000000537000-memory.dmp
      Filesize

      1.2MB

    • memory/4236-51-0x0000000000400000-0x0000000000537000-memory.dmp
      Filesize

      1.2MB

    • memory/4236-41-0x0000000000400000-0x0000000000537000-memory.dmp
      Filesize

      1.2MB

    • memory/4236-39-0x0000000000400000-0x0000000000537000-memory.dmp
      Filesize

      1.2MB

    • memory/4296-14-0x00000000006A0000-0x00000000006DC000-memory.dmp
      Filesize

      240KB

    • memory/4296-3-0x0000000000400000-0x0000000000618000-memory.dmp
      Filesize

      2.1MB

    • memory/4296-2-0x0000000000400000-0x0000000000618000-memory.dmp
      Filesize

      2.1MB

    • memory/4296-1-0x00000000006A0000-0x00000000006DC000-memory.dmp
      Filesize

      240KB

    • memory/4296-4-0x0000000000401000-0x0000000000413000-memory.dmp
      Filesize

      72KB

    • memory/4296-5-0x0000000000400000-0x0000000000618000-memory.dmp
      Filesize

      2.1MB

    • memory/4296-6-0x0000000002330000-0x0000000002331000-memory.dmp
      Filesize

      4KB

    • memory/4296-15-0x0000000000401000-0x0000000000413000-memory.dmp
      Filesize

      72KB

    • memory/4296-13-0x0000000000400000-0x0000000000618000-memory.dmp
      Filesize

      2.1MB

    • memory/4296-0-0x0000000000400000-0x0000000000618000-memory.dmp
      Filesize

      2.1MB

    • memory/4296-9-0x0000000000400000-0x0000000000618000-memory.dmp
      Filesize

      2.1MB

    • memory/4296-7-0x0000000000400000-0x0000000000618000-memory.dmp
      Filesize

      2.1MB