Resubmissions

06-11-2023 12:32

231106-pqk42sba4s 10

06-11-2023 12:23

231106-pksxpsce94 10

03-11-2023 20:59

231103-zsp6wscd45 10

General

  • Target

    file.exe

  • Size

    758KB

  • Sample

    231103-zsp6wscd45

  • MD5

    147f66a4ab5d877e9cd347e9c16fcd72

  • SHA1

    37e9024c5d64d51d01a1b1c9b3f1b5758693cedb

  • SHA256

    a706c1d0d748f3847de78ea63f7b3b6a6336f5750c84241e6b7fd0d45cd43765

  • SHA512

    20ccb69ce1ced51fec5b87abfaa7418321700e28c2e8f23251564276662ba000479ea6d387f66e45325bae79fec078f5664b3ba925f90f1041213a097c783357

  • SSDEEP

    12288:uA8auX4Zp7MC2bkWKvkfsIvkjAvh1rJyjvQe4XcIVvfdquBAsbDG:uZXcV7kkkfsI2qXF8vQe4XcILAs+

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .yzqe

  • offline_id

    x2zqmFxw8ydx3wkiEeNayQ64Eyg2U5MS31sTegt1

  • payload_url
  • 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://go.wetransfer.com/t-Z4jZBpJ1EK 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: 0819ASdw

rsa_pubkey.plain

Targets

    • Target

      file.exe

    • Size

      758KB

    • MD5

      147f66a4ab5d877e9cd347e9c16fcd72

    • SHA1

      37e9024c5d64d51d01a1b1c9b3f1b5758693cedb

    • SHA256

      a706c1d0d748f3847de78ea63f7b3b6a6336f5750c84241e6b7fd0d45cd43765

    • SHA512

      20ccb69ce1ced51fec5b87abfaa7418321700e28c2e8f23251564276662ba000479ea6d387f66e45325bae79fec078f5664b3ba925f90f1041213a097c783357

    • SSDEEP

      12288:uA8auX4Zp7MC2bkWKvkfsIvkjAvh1rJyjvQe4XcIVvfdquBAsbDG:uZXcV7kkkfsI2qXF8vQe4XcILAs+

    • 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.

    • 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

1
T1012

System Information Discovery

2
T1082

Tasks