Overview

overview

10

Static

static

10

2024-09-06...op.exe

windows7-x64

10

2024-09-06...op.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    132s
  • max time network
    136s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    06-09-2024 02:40

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General

  • Target

    2024-09-06_850d0bc37d1f77efa73bb55eba7bfab4_stop.exe

  • Size

    1.1MB

  • MD5

    850d0bc37d1f77efa73bb55eba7bfab4

  • SHA1

    69075099a120d7c62f282251b49ae5c9a38a4781

  • SHA256

    1dbc06d0bd544c3b5a1e49a8c416f6a1d29a7a6eda5031894df7bf5f49430656

  • SHA512

    b9f439a742033b0951d5212d48cedcf46b34b903ee05ba7f0ba98c6b4d236d9b74acb953f41e6dda56fd2a4c4e5ac6d15900f9cb9b2620978f6d893f64e4f2b1

  • SSDEEP

    24576:ZBUIKn/vwOXGUXAjCymYZiVtElVIBT2roqnTSSxWeT/dRPOO8GWQHUq7:F0dwAYZt6C31WeTVRPOhG7Uq7

Score
10/10
djvudiscoverypersistenceransomware

Malware Config

Extracted

Family

djvu

C2

http://tbpws.top/fhsgtsspen6/get.php

Attributes
  • extension

    .wiot

  • offline_id

    sZ9rF572Y03XTlUZsBUVlV9YksFOEsyIfGx58yt1

  • payload_url

    http://securebiz.org/dl/build2.exe

    http://tbpws.top/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-CtDpAM1g5f 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: 0333gSd743d

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\2024-09-06_850d0bc37d1f77efa73bb55eba7bfab4_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-06_850d0bc37d1f77efa73bb55eba7bfab4_stop.exe"
    1⤵
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2112
    • C:\Windows\SysWOW64\icacls.exe
      icacls "C:\Users\Admin\AppData\Local\7265f2d9-279e-4ba7-80d0-6be8ad81f65f" /deny *S-1-1-0:(OI)(CI)(DE,DC)
      2⤵
      • Modifies file permissions
      • System Location Discovery: System Language Discovery
      PID:2868
    • C:\Users\Admin\AppData\Local\Temp\2024-09-06_850d0bc37d1f77efa73bb55eba7bfab4_stop.exe
      "C:\Users\Admin\AppData\Local\Temp\2024-09-06_850d0bc37d1f77efa73bb55eba7bfab4_stop.exe" --Admin IsNotAutoStart IsNotTask
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:2920

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

    163d707ffa8bb63af7ebcc40900be8ea

    SHA1

    3ac17feebe7f15f71296c70a7c4cfb98fc64897a

    SHA256

    95b6804dc65f11036e2c3dd60d9ba513f4542b5831d0968d4717736c6b0a5a2f

    SHA512

    ce75cf366e25f43e3090124a7b24ed18db685a616d5147aa8126a081cc7b6ed321e770935f1f6088424181da1542267f9507efd10db79d4e2cf319912ff9412d

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

    170B

    MD5

    cf57808742f5e9f20a071c6ec7c10720

    SHA1

    67f9b22125c35da54d0eab632f47649686da8bd2

    SHA256

    93b23b0705e645d8d3ee4a794fcaf9cacd10d770754154a154b8b259186ccc26

    SHA512

    7cc095b464f1d1dd8867f3c564625ef15b2bec8159dd61f18f7bcf226bad0212600eb173e9f4a1239a1b15a499ced3d57600e5266fc4c54360f5821a9ba699ca

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  • C:\Users\Admin\AppData\Local\7265f2d9-279e-4ba7-80d0-6be8ad81f65f\2024-09-06_850d0bc37d1f77efa73bb55eba7bfab4_stop.exe
    Filesize

    1.1MB

    MD5

    850d0bc37d1f77efa73bb55eba7bfab4

    SHA1

    69075099a120d7c62f282251b49ae5c9a38a4781

    SHA256

    1dbc06d0bd544c3b5a1e49a8c416f6a1d29a7a6eda5031894df7bf5f49430656

    SHA512

    b9f439a742033b0951d5212d48cedcf46b34b903ee05ba7f0ba98c6b4d236d9b74acb953f41e6dda56fd2a4c4e5ac6d15900f9cb9b2620978f6d893f64e4f2b1

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  • C:\Users\Admin\AppData\Local\Temp\CabD365.tmp
    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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