Overview

overview

10

Static

static

3

fd56bfbe2b...1b.exe

windows7-x64

10

fd56bfbe2b...1b.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    fd56bfbe2b88d06ffe9cccb5a7e93464eb05ae0f9a86b33ed8d96146a968841b

  • Size

    921KB

  • Sample

    240531-llb4ssdf21

  • MD5

    72211d984aeafde3d7d93ac923850b7b

  • SHA1

    4eed3f9013d9f3ac9eda675e4336fc04fb429b47

  • SHA256

    fd56bfbe2b88d06ffe9cccb5a7e93464eb05ae0f9a86b33ed8d96146a968841b

  • SHA512

    54b919899ebc6ea72c5dfb5d6ce4c5d6ba9afec3f1992025492b636013122138c84a90909f6333a944387c4e218f0beaa8a3db34e0e4899fb8f19a45074b1feb

  • SSDEEP

    24576:VYoZk9otYrwgGYPBD2YpIpTGamTbB2mQyT1z69kQ5MSlAi:Vtk9oklbPBCYpcC3TbB2HeGjbii

Score
10/10
djvudiscoverypersistenceransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .tghz

  • offline_id

    hZRMDGn2o1XdryxaQbOJI60EuHBvAbPnWEccdDt1

  • payload_url

    http://colisumy.com/dl/build2.exe

    http://zexeq.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-OQnsJqCOOl 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: 0732SwOsie

rsa_pubkey.plain

Targets

    • Target

      fd56bfbe2b88d06ffe9cccb5a7e93464eb05ae0f9a86b33ed8d96146a968841b

    • Size

      921KB

    • MD5

      72211d984aeafde3d7d93ac923850b7b

    • SHA1

      4eed3f9013d9f3ac9eda675e4336fc04fb429b47

    • SHA256

      fd56bfbe2b88d06ffe9cccb5a7e93464eb05ae0f9a86b33ed8d96146a968841b

    • SHA512

      54b919899ebc6ea72c5dfb5d6ce4c5d6ba9afec3f1992025492b636013122138c84a90909f6333a944387c4e218f0beaa8a3db34e0e4899fb8f19a45074b1feb

    • SSDEEP

      24576:VYoZk9otYrwgGYPBD2YpIpTGamTbB2mQyT1z69kQ5MSlAi:Vtk9oklbPBCYpcC3TbB2HeGjbii

    Score
    10/10
    djvudiscoverypersistenceransomware

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

      ransomwaredjvu

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Modifies file permissions

      discovery

    • Adds Run key to start application

      persistence

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

File and Directory Permissions Modification

1
T1222

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks