General

  • Target

    6306d65921ec09c3c65c4eba2ae644187b39997c1b422dc731264a827e812588

  • Size

    714KB

  • Sample

    230910-n4wbhagh5t

  • MD5

    7d30d9099185aa1cdc8f0333d3146328

  • SHA1

    b20a4e31e2e083a9e32a295335d9dfbaa7d09b52

  • SHA256

    6306d65921ec09c3c65c4eba2ae644187b39997c1b422dc731264a827e812588

  • SHA512

    8ab4c5609caae39b96ef5ee7a2bb2486a6378aa2c09434048e7ad1f033cb5637964e47bc9468e679c5cdb594e2ae295cfffdb9c9fea8b712e828ed325c3480fc

  • SSDEEP

    12288:1vPYvKbTw+/AIEVSBGrKsVBFvPFacNklptLDSKy4XtFjACfkle3x8z:1vcKvw+oII6GVBFvPF7wtXAMweh

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .hgfu

  • offline_id

    Nk8w6hJsuGrE3s2SYWM3ehMUHvjgVRqqgX84dat1

  • 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-iTbDHY13BX 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: 0779JOsie

rsa_pubkey.plain

Targets

    • Target

      6306d65921ec09c3c65c4eba2ae644187b39997c1b422dc731264a827e812588

    • Size

      714KB

    • MD5

      7d30d9099185aa1cdc8f0333d3146328

    • SHA1

      b20a4e31e2e083a9e32a295335d9dfbaa7d09b52

    • SHA256

      6306d65921ec09c3c65c4eba2ae644187b39997c1b422dc731264a827e812588

    • SHA512

      8ab4c5609caae39b96ef5ee7a2bb2486a6378aa2c09434048e7ad1f033cb5637964e47bc9468e679c5cdb594e2ae295cfffdb9c9fea8b712e828ed325c3480fc

    • SSDEEP

      12288:1vPYvKbTw+/AIEVSBGrKsVBFvPFacNklptLDSKy4XtFjACfkle3x8z:1vcKvw+oII6GVBFvPF7wtXAMweh

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Checks computer location settings

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

    • Modifies file permissions

    • Adds Run key to start application

    • Looks up external IP address via web service

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

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

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

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Tasks