Overview

overview

10

Static

static

10

2024-08-10...op.exe

windows7-x64

10

2024-08-10...op.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    33s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    10-08-2024 03:49

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General

  • Target

    2024-08-10_258b365aa910c2560eee37b70df27656_stop.exe

  • Size

    1.1MB

  • MD5

    258b365aa910c2560eee37b70df27656

  • SHA1

    117e38e9ea29f84128ab63e03c3694fc1acc5eec

  • SHA256

    ca6794679dc6c84aa9870304229cbbbcd4a6c97149bb8bb1fc01912a64d17e2c

  • SHA512

    7ca59107ca25875651d27dfedc6cb0af1528e6cd32d237c4e7986112b9065567ad96784d57bef9ce4b67258bdc04943d1b864fdd1de278d34fea54ec2745e328

  • SSDEEP

    24576:ZBUIKn/vwOXGUXAjCymYZiVtElVIBT2roqnTSSxWeT/dRPOO8jWQHUq7:F0dwAYZt6C31WeTVRPOhj7Uq7

Score
10/10
djvudiscoverypersistenceransomware

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-uZxWxoKbU5 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.

    ransomwaredjvu
  • Modifies file permissions 1 TTPs 1 IoCs
    discovery
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • 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.

    discovery
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-08-10_258b365aa910c2560eee37b70df27656_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-10_258b365aa910c2560eee37b70df27656_stop.exe"
    1⤵
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2244
    • C:\Windows\SysWOW64\icacls.exe
      icacls "C:\Users\Admin\AppData\Local\7353fd3e-2dfe-427e-84c3-86c20f0ca404" /deny *S-1-1-0:(OI)(CI)(DE,DC)
      2⤵
      • Modifies file permissions
      • System Location Discovery: System Language Discovery
      PID:1692
    • C:\Users\Admin\AppData\Local\Temp\2024-08-10_258b365aa910c2560eee37b70df27656_stop.exe
      "C:\Users\Admin\AppData\Local\Temp\2024-08-10_258b365aa910c2560eee37b70df27656_stop.exe" --Admin IsNotAutoStart IsNotTask
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:2420

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    1KB

    MD5

    7fb5fa1534dcf77f2125b2403b30a0ee

    SHA1

    365d96812a69ac0a4611ea4b70a3f306576cc3ea

    SHA256

    33a39e9ec2133230533a686ec43760026e014a3828c703707acbc150fe40fd6f

    SHA512

    a9279fd60505a1bfeef6fb07834cad0fd5be02fd405573fc1a5f59b991e9f88f5e81c32fe910f69bdc6585e71f02559895149eaf49c25b8ff955459fd60c0d2e

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  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B46811C17859FFB409CF0E904A4AA8F8
    Filesize

    436B

    MD5

    971c514f84bba0785f80aa1c23edfd79

    SHA1

    732acea710a87530c6b08ecdf32a110d254a54c8

    SHA256

    f157ed17fcaf8837fa82f8b69973848c9b10a02636848f995698212a08f31895

    SHA512

    43dc1425d80e170c645a3e3bb56da8c3acd31bd637329e9e37094ac346ac85434df4edcdbefc05ae00aea33a80a88e2af695997a495611217fe6706075a63c58

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

    174B

    MD5

    e1eb98f47ffe175a2f055c03ca733744

    SHA1

    3cb174e7e30f18009b404bc6021359783ad02af8

    SHA256

    fccea3c4734292d8554df4a854013c76bfbef5a3195afb12d54e7002e1677b51

    SHA512

    9489572d59a91d3562bc75f720d0d90bfd5415fae2d7de3d9e8443d46227999eb375aeefff3f0c2b089de14be53fc8753cb9677514241ad9912f3ecde65766ef

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  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
    Filesize

    342B

    MD5

    d3a9ab63ddaab74bedc1e9ee07bca90f

    SHA1

    720bce5e62acd0db90547c2cfad08f5fa70ac902

    SHA256

    0fd7bedeb4cd6e9976aedba249e66e613b15a27ef1ee2eea7bec2bfd7a9c650c

    SHA512

    c40b4dafe2b0aa7a220fad1ab83b3f93059474f1f9259a1c4c90e13b4fc9637d5457af11d5ca73205663c6e7ae2afdb42aac7e615df4ebbcee9e55bafe7ed5dd

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

    170B

    MD5

    9cf9f95c90c649e23d02d7d86b24cd1c

    SHA1

    f122a1e7f71714448d8115c5b5c0a577f8f651cc

    SHA256

    d0fe22ae5d169e2838dd3dd8465b230ce8284cc61003c4a3ed7fc5bba4363716

    SHA512

    079731fdb43e51ec2c0ef9d09a3eb0f7f7cac661d1cee17ceec486e9b7ac4e89e6f73c568548bfa918c53d51507251a4691a1920e14ab9795838eb4d338e28bb

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  • C:\Users\Admin\AppData\Local\7353fd3e-2dfe-427e-84c3-86c20f0ca404\2024-08-10_258b365aa910c2560eee37b70df27656_stop.exe
    Filesize

    1.1MB

    MD5

    258b365aa910c2560eee37b70df27656

    SHA1

    117e38e9ea29f84128ab63e03c3694fc1acc5eec

    SHA256

    ca6794679dc6c84aa9870304229cbbbcd4a6c97149bb8bb1fc01912a64d17e2c

    SHA512

    7ca59107ca25875651d27dfedc6cb0af1528e6cd32d237c4e7986112b9065567ad96784d57bef9ce4b67258bdc04943d1b864fdd1de278d34fea54ec2745e328

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  • C:\Users\Admin\AppData\Local\Temp\Cab7C32.tmp
    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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