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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
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/09/2024, 02:47

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General

  • Target

    2024-09-06_bcf8e002b1b07307c4b4db8243ee854f_stop.exe

  • Size

    1.1MB

  • MD5

    bcf8e002b1b07307c4b4db8243ee854f

  • SHA1

    2513979c04b7ab3d3a77a29219a3219b1dec4949

  • SHA256

    3fce9a2c37ee6008225bd0f8d10884612472e14c28ea492eb2042360ee47dea4

  • SHA512

    d979566cd79529ae3a5667dab12cf3e94b1dc5e086b68407b9c2a474a67f4b95e5af54da8ef199bacb0cab2840b6c94c9025409cfcd004d61861b93f51452031

  • SSDEEP

    24576:ZBUIKn/vwOXGUXAjCymYZiVtElVIBT2roqnTSSxWeT/dRPOO8KWQHUq7:F0dwAYZt6C31WeTVRPOhK7Uq7

Score
10/10
djvudiscoverypersistenceransomware

Malware Config

Extracted

Family

djvu

C2

http://tzgl.org/fhsgtsspen6/get.php

Attributes
  • extension

    .xcmb

  • offline_id

    PN9lPPL0xn5HdNFrN1JTJ7oVcWFkXn2HzoupUzt1

  • payload_url

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

    http://tzgl.org/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-gtSNjaG9aa 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: 0365Odkfg

rsa_pubkey.plain

Signatures

  • Detected Djvu ransomware 1 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

    ransomwaredjvu
  • 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
    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 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-06_bcf8e002b1b07307c4b4db8243ee854f_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-06_bcf8e002b1b07307c4b4db8243ee854f_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:1908
    • C:\Windows\SysWOW64\icacls.exe
      icacls "C:\Users\Admin\AppData\Local\85486c1a-4393-40df-bb7c-f1e076f5e117" /deny *S-1-1-0:(OI)(CI)(DE,DC)
      2⤵
      • Modifies file permissions
      • System Location Discovery: System Language Discovery
      PID:3732
    • C:\Users\Admin\AppData\Local\Temp\2024-09-06_bcf8e002b1b07307c4b4db8243ee854f_stop.exe
      "C:\Users\Admin\AppData\Local\Temp\2024-09-06_bcf8e002b1b07307c4b4db8243ee854f_stop.exe" --Admin IsNotAutoStart IsNotTask
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:1004

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

    2117aaf2ceed57cdfd0da9fa39d77d1e

    SHA1

    a4201e470722ff81726be18e5203de2bd2f7708c

    SHA256

    46ad1322b5a2b5c5263ca0bcf08b60350f682c4003aa0ebe0237a4a63df1e7b9

    SHA512

    9357964f8d036bce397744399136d6a68f651ad4bdda5636b806f8f42bece3e722c26b0baa5097236702b779b77e93112bc549a5862221488d747657bee9c940

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

    170B

    MD5

    83c02d6987fbed0c30b1f1c2fde687b3

    SHA1

    d197f0c8ace05e2aeba44bf2936c75f59cab72dc

    SHA256

    4cc4f09981d0990db8d87db71bdfa46633d855d38b37c584d98b41bcc73703b9

    SHA512

    0fa0d6de9d1111638585ad2d49b24a43499b7066a2ffa3fa81297316237839eb0bf80b665a1a3c33003027d9ceed66e00424b15283d7701d07b6f153f375658c

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  • C:\Users\Admin\AppData\Local\85486c1a-4393-40df-bb7c-f1e076f5e117\2024-09-06_bcf8e002b1b07307c4b4db8243ee854f_stop.exe
    Filesize

    1.1MB

    MD5

    bcf8e002b1b07307c4b4db8243ee854f

    SHA1

    2513979c04b7ab3d3a77a29219a3219b1dec4949

    SHA256

    3fce9a2c37ee6008225bd0f8d10884612472e14c28ea492eb2042360ee47dea4

    SHA512

    d979566cd79529ae3a5667dab12cf3e94b1dc5e086b68407b9c2a474a67f4b95e5af54da8ef199bacb0cab2840b6c94c9025409cfcd004d61861b93f51452031

    Download Submit