Analysis

  • max time kernel
    98s
  • max time network
    105s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-08-2024 11:16

General

  • Target

    2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe

  • Size

    1.1MB

  • MD5

    c11cf10ac6c3b434565b929ddf84c534

  • SHA1

    622e89291e0de0043f1daa5344d8d90fb26e8bb6

  • SHA256

    8268b6324c6890e1c93813ebbef9164c962af7be7a67f930c00e7879e1115014

  • SHA512

    19c1fc5740ea8d100d8d7df332a21038562a650a2c97e681db6ee19ff17bc56450d69dd96f8f30ae169475856d4fde2fad479acb93ee06e0e63dd9dd1a2a8971

  • SSDEEP

    24576:ZBUIKn/vwOXGUXAjCymYZiVtElVIBT2roqnTSSxWeT/dRPOO8BWQHUq7:F0dwAYZt6C31WeTVRPOhB7Uq7

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .mzqw

  • offline_id

    ex4uvTKsM2vEkIcr3MjXi2C6v27h1mS682iUXGt1

  • payload_url

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

    http://drampik.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-cud8EGMtyB 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: 0635JOsie

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\2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-08_c11cf10ac6c3b434565b929ddf84c534_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:3520
    • C:\Windows\SysWOW64\icacls.exe
      icacls "C:\Users\Admin\AppData\Local\2aa9a93a-30cb-4a9c-ab71-756110cb1dc1" /deny *S-1-1-0:(OI)(CI)(DE,DC)
      2⤵
      • Modifies file permissions
      • System Location Discovery: System Language Discovery
      PID:4648
    • C:\Users\Admin\AppData\Local\Temp\2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe
      "C:\Users\Admin\AppData\Local\Temp\2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe" --Admin IsNotAutoStart IsNotTask
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:4644

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

    6e38137ac0837da74d3bbc1043613718

    SHA1

    3a19bb40aa0672874bac57758dc65e6efa78f7a3

    SHA256

    945d02bc8601069be2c606d13378fdfcc7324c584edf13acc873b58db7c9fa2f

    SHA512

    c2458704e7f5ec36826f7259512a9c01553c3c9518f843a1d049c213f4848b4c44f63909c434cc23e7ca476b6a9edeaf3de197c34a23c0d41028cb023a74dd96

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

    Filesize

    170B

    MD5

    a3646c70d6c49dc7bd56abdbb8f6c56b

    SHA1

    c702bfc25b3f464ec665a94e1d7d473600dce49e

    SHA256

    541e68eb13ea7629da14fa918182cfc590c980585bf10182bc60a4e933c4c268

    SHA512

    68d2b5ed67e588cdcc4adcc59296dda4fc38db98838e5d009ae2e5e71802392e2de96aa8e99f2e29c44d4223d808ee2304b283953c58ecc2ba05b6ffb2acf54b

  • C:\Users\Admin\AppData\Local\2aa9a93a-30cb-4a9c-ab71-756110cb1dc1\2024-08-08_c11cf10ac6c3b434565b929ddf84c534_stop.exe

    Filesize

    1.1MB

    MD5

    c11cf10ac6c3b434565b929ddf84c534

    SHA1

    622e89291e0de0043f1daa5344d8d90fb26e8bb6

    SHA256

    8268b6324c6890e1c93813ebbef9164c962af7be7a67f930c00e7879e1115014

    SHA512

    19c1fc5740ea8d100d8d7df332a21038562a650a2c97e681db6ee19ff17bc56450d69dd96f8f30ae169475856d4fde2fad479acb93ee06e0e63dd9dd1a2a8971