Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-08-2024 04:09

General

  • Target

    2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe

  • Size

    1.1MB

  • MD5

    f32df0dde450209b1a85d594220c388c

  • SHA1

    79f1621964fe7f663cb51e7806d9979e070cac39

  • SHA256

    3be9cda8c1bc83adc04bf96d4c8376959698698dd8b09ac48c4a506d2f0ef98e

  • SHA512

    8d37806404df35922fb54045346c23b46ca54c4538ade6078e19ee15240d587ddb6c2adfa44b5ad2aa08e141cd8290a47a65c63c027672b4555abbcb08af7787

  • SSDEEP

    24576:ZBUIKn/vwOXGUXAjCymYZiVtElVIBT2roqnTSSxWeT/dRPOO83WQHUq7:F0dwAYZt6C31WeTVRPOh37Uq7

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .bpsm

  • offline_id

    pu5TgkFNAS5fWQ2rCzdamsmMrE5wSlTupdTI0pt1

  • payload_url

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

    http://spaceris.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-rmxjMZAZBJ 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: 0626JOsie

rsa_pubkey.plain

Signatures

  • Detected Djvu ransomware 1 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.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 3 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 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2340
    • C:\Windows\SysWOW64\icacls.exe
      icacls "C:\Users\Admin\AppData\Local\d2ab89ff-fcc6-4aeb-a119-45f2fe95bc3e" /deny *S-1-1-0:(OI)(CI)(DE,DC)
      2⤵
      • Modifies file permissions
      • System Location Discovery: System Language Discovery
      PID:4756
    • C:\Users\Admin\AppData\Local\Temp\2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe
      "C:\Users\Admin\AppData\Local\Temp\2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe" --Admin IsNotAutoStart IsNotTask
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:4000

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8B2B9A00839EED1DFDCCC3BFC2F5DF12

    Filesize

    1KB

    MD5

    7fb5fa1534dcf77f2125b2403b30a0ee

    SHA1

    365d96812a69ac0a4611ea4b70a3f306576cc3ea

    SHA256

    33a39e9ec2133230533a686ec43760026e014a3828c703707acbc150fe40fd6f

    SHA512

    a9279fd60505a1bfeef6fb07834cad0fd5be02fd405573fc1a5f59b991e9f88f5e81c32fe910f69bdc6585e71f02559895149eaf49c25b8ff955459fd60c0d2e

  • 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

    19baff0e4adb1a3a97a01ed24ff7736d

    SHA1

    955d18889fa68619eeebf5358d19c60d9a34e259

    SHA256

    a0f58384560e33ce1b52160fc6e30d97020e1eee6ef29ff5e0fca4ce386dc612

    SHA512

    84241f38cf0a15df815f9467ca1b4de06865254a97237e7e151441e474110b515ea1a97f8d588cc723e4869f2f6bf577af5edbcccc9843fa426d225931c79c9b

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

    Filesize

    170B

    MD5

    74393acf44d29914d97fa53b6c45c57f

    SHA1

    e02b11e67ec5a729b10638584f83c3c2b9206dbd

    SHA256

    d4081340fd11e228ccec12e90f5e167eb22f39cebf9f6077c1425c033a6a0463

    SHA512

    257905fe049fa24cfe4ad6e4ddad91b6741e3a3420e9c6caf37f4a6626c9c66d53b1c060746cdea5375c4f4d74b7b69c157c0a45319a480d6195727cba82ca6c

  • C:\Users\Admin\AppData\Local\d2ab89ff-fcc6-4aeb-a119-45f2fe95bc3e\2024-08-09_f32df0dde450209b1a85d594220c388c_stop.exe

    Filesize

    1.1MB

    MD5

    f32df0dde450209b1a85d594220c388c

    SHA1

    79f1621964fe7f663cb51e7806d9979e070cac39

    SHA256

    3be9cda8c1bc83adc04bf96d4c8376959698698dd8b09ac48c4a506d2f0ef98e

    SHA512

    8d37806404df35922fb54045346c23b46ca54c4538ade6078e19ee15240d587ddb6c2adfa44b5ad2aa08e141cd8290a47a65c63c027672b4555abbcb08af7787