Overview

overview

10

Static

static

b7ea7d444d...dc.exe

windows7-x64

10

b7ea7d444d...dc.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    b7ea7d444d1ed5677537a96796a496dc.exe

  • Size

    738KB

  • Sample

    220805-pp2qeacga7

  • MD5

    b7ea7d444d1ed5677537a96796a496dc

  • SHA1

    738054720787a8f80e3a4f1bd92f08b3084190aa

  • SHA256

    0336cc8aff0e4974ede9e8901abeb10f836d50619cef1cb59aa41b447cea1ca5

  • SHA512

    6bfacd6fd078715661afc9e3657c625d8b941bfeeaf323ff798c7c7fb78c64f813c96c4a1cffeda08c2f820e8e315f0cc14944087a11d1502c4aeafaf068b2f0

Score
10/10
djvudiscoverypersistenceransomwarespywarestealer

Malware Config

Extracted

Family

djvu

C2

http://acacaca.org/test2/get.php

Attributes
  • extension

    .vvyu

  • offline_id

    rE5LpDv2ftYRXAo7bC18EpzfRMTHSGjgfyIMfZt1

  • payload_url

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

    http://acacaca.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-QsoSRIeAK6 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: support@bestyourmail.ch Reserve e-mail address to contact us: datarestorehelp@airmail.cc Your personal ID: 0531Jhyjd

rsa_pubkey.plain

Targets

    • Target

      b7ea7d444d1ed5677537a96796a496dc.exe

    • Size

      738KB

    • MD5

      b7ea7d444d1ed5677537a96796a496dc

    • SHA1

      738054720787a8f80e3a4f1bd92f08b3084190aa

    • SHA256

      0336cc8aff0e4974ede9e8901abeb10f836d50619cef1cb59aa41b447cea1ca5

    • SHA512

      6bfacd6fd078715661afc9e3657c625d8b941bfeeaf323ff798c7c7fb78c64f813c96c4a1cffeda08c2f820e8e315f0cc14944087a11d1502c4aeafaf068b2f0

    Score
    10/10
    djvudiscoverypersistenceransomwarespywarestealer

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

      ransomwaredjvu

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

    • Modifies file permissions

      discovery

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Accesses 2FA software files, possible credential harvesting

      spywarestealer

    • Accesses cryptocurrency files/wallets, possible credential harvesting

      spyware

    • Adds Run key to start application

      persistence

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

      discovery

    • 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 v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

File Permissions Modification

1
T1222

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Data from Local System

3
T1005

Exfiltration

Command and Control

Impact

Tasks