Overview

overview

10

Static

static

3

5e19952ace...73.exe

windows7-x64

10

5e19952ace...73.exe

windows10-1703-x64

10

5e19952ace...73.exe

windows10-2004-x64

10

5e19952ace...73.exe

windows11-21h2-x64

10

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General

  • Target

    5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073

  • Size

    769KB

  • Sample

    240615-pevjcazerg

  • MD5

    6b3c3b621f4964f232d23c7b32a2e486

  • SHA1

    dc7a1111a7fa4380b42dfa8e6d1b22b338aa10fc

  • SHA256

    5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073

  • SHA512

    78b0b893295e5c8c811618638bfb9fcca2daef20b209ef4f0aeb400372b9827ff8b01325427ee41091dfb9d6b3c334510a6f2b4cccf407970cf72adb0bb2b293

  • SSDEEP

    24576:nAVmJoIjqT53ve6LT/8EMuuV1y5SYVWuQWJb:AoJ/Q5XHz+7yA5E

Score
10/10
djvudiscoverypersistenceransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .cdpo

  • offline_id

    Bn3q97hwLouKbhkQRNO4SeV07gjdEQVm8NKhg0t1

  • payload_url

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

    http://habrafa.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-FCWSCsjEWS Price of private key and decrypt software is $1999. Discount 50% available if you contact us first 72 hours, that's price for you is $999. 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: 0844OSkw

rsa_pubkey.plain

Targets

    • Target

      5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073

    • Size

      769KB

    • MD5

      6b3c3b621f4964f232d23c7b32a2e486

    • SHA1

      dc7a1111a7fa4380b42dfa8e6d1b22b338aa10fc

    • SHA256

      5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073

    • SHA512

      78b0b893295e5c8c811618638bfb9fcca2daef20b209ef4f0aeb400372b9827ff8b01325427ee41091dfb9d6b3c334510a6f2b4cccf407970cf72adb0bb2b293

    • SSDEEP

      24576:nAVmJoIjqT53ve6LT/8EMuuV1y5SYVWuQWJb:AoJ/Q5XHz+7yA5E

    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

    behavioral1behavioral2behavioral3behavioral4

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