Overview

overview

10

Static

static

3

40ed4ab71f...d9.exe

windows7-x64

10

40ed4ab71f...d9.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    40ed4ab71f9a8f6bce8862e45a95c6ed5775f853cd852dd6180cafb6ae8616d9

  • Size

    977KB

  • Sample

    240531-jjfm4abe6x

  • MD5

    d6325f43fd9383930826641c962d1813

  • SHA1

    5eef40b1f212929deb0bff05d83adc71cb5384bc

  • SHA256

    40ed4ab71f9a8f6bce8862e45a95c6ed5775f853cd852dd6180cafb6ae8616d9

  • SHA512

    c8b85afb6a292a65db7e49cb0ac9ecd73935f7f62ccc8dca3d48f80d374cd93376375b8c51e78e94b71d4c403095a1ae6b96a3ffbb91a0318e93b23be2e302c5

  • SSDEEP

    24576:WANDStkCeTocISoyiacN6qphrCHTxMYl9iRiZMy:LDCkCeTdINyiTphrQTaOwkZD

Score
10/10
djvudiscoverypersistenceransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .vaze

  • offline_id

    BUcuB8PRg0LNi380axIJs5BS8nCUdeo9U88L2Lt1

  • 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-tnzomMj6HU 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: 0714JOsie

rsa_pubkey.plain

Targets

    • Target

      40ed4ab71f9a8f6bce8862e45a95c6ed5775f853cd852dd6180cafb6ae8616d9

    • Size

      977KB

    • MD5

      d6325f43fd9383930826641c962d1813

    • SHA1

      5eef40b1f212929deb0bff05d83adc71cb5384bc

    • SHA256

      40ed4ab71f9a8f6bce8862e45a95c6ed5775f853cd852dd6180cafb6ae8616d9

    • SHA512

      c8b85afb6a292a65db7e49cb0ac9ecd73935f7f62ccc8dca3d48f80d374cd93376375b8c51e78e94b71d4c403095a1ae6b96a3ffbb91a0318e93b23be2e302c5

    • SSDEEP

      24576:WANDStkCeTocISoyiacN6qphrCHTxMYl9iRiZMy:LDCkCeTdINyiTphrQTaOwkZD

    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