Overview

overview

10

Static

static

1

cda9f5037a...fb.exe

windows7-x64

10

cda9f5037a...fb.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    cda9f5037aff065e59e3709e79a7528e0a4bbb9bd12a43a28264b8f5f0e200fb.zip

  • Size

    630KB

  • Sample

    230406-1enlkshb7w

  • MD5

    262f76bb88388a7f5ef459545567d065

  • SHA1

    689f3c93788ac5d4f92dbff8acb5c54f139e4f48

  • SHA256

    27634df7f9cf202584abb8c0a28822e18e197073a274d2e988638a53a019b3ed

  • SHA512

    76cf0299d8ded2d71ebbb1425783d2dca5d158c097aeb70837db1868a30ad027c2a7d7b4b2906c654621b20ea72d4fbf9d20e9e320b26b73d78f186d73fed0fa

  • SSDEEP

    12288:fZQCLG/WO8lxxf6DaDjWEnhRQGvCUZMHKaPxqoxHdts/W3pLPYn:fZQN/WOwf6uGyhhHyHTPxRHdt2GYn

Score
10/10
djvudiscoverypersistenceransomware

Malware Config

Extracted

Family

djvu

C2

http://zexeq.com/test2/get.php

Attributes
  • extension

    .kifr

  • offline_id

    iIlWwF8bQ6n1I71JdbwrJ0LNue9L0IeEoD6KAJt1

  • payload_url

    http://uaery.top/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-lEbmgnjBGi 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@freshmail.top Reserve e-mail address to contact us: datarestorehelp@airmail.cc Your personal ID: 0683JOsie

rsa_pubkey.plain

Targets

    • Target

      cda9f5037aff065e59e3709e79a7528e0a4bbb9bd12a43a28264b8f5f0e200fb.exe

    • Size

      691KB

    • MD5

      e79ef59b625dee8067807985e0506eb5

    • SHA1

      f765ae06a338aa095518b5241d4abc7df33a8ee5

    • SHA256

      cda9f5037aff065e59e3709e79a7528e0a4bbb9bd12a43a28264b8f5f0e200fb

    • SHA512

      7603837f73137a1ba47ad16caddcec0020cf995c642b7b394f22ae2b44b62da439b7128fcad53850d00a0e2f75cdfa1e29f6cc52b5be129942bdbaac4cb68a9c

    • SSDEEP

      12288:p18lxoiEPb9GTLlRRhA8D7Sf0n0jCp/u2GWaEpUUE93o:wnkRGHfA8DWWMChGW+0

    Score
    10/10
    djvudiscoverypersistenceransomware

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

      ransomwaredjvu

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • 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 v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

File Permissions Modification

1
T1222

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks