General

  • Target

    b2cae558dc0eb333264ac7c5ae29b83fa1b2c0fd74a1b76e9d93dece8c53aef6

  • Size

    838KB

  • Sample

    211203-f4e1hshhb8

  • MD5

    a5ca107165af127435684d7c6577e5c1

  • SHA1

    5b8df1071c9657154bd39ea846f9ed9cf9014432

  • SHA256

    b2cae558dc0eb333264ac7c5ae29b83fa1b2c0fd74a1b76e9d93dece8c53aef6

  • SHA512

    2a2a0889a851b553eee7fa1d6311dbc85a99202794a4eca044a9b9a215c5cb63e2884d3925e48efc800e1f09c8bfd36f33ff2f9a559b602b4246a6bf0dccb50e

Malware Config

Extracted

Family

djvu

C2

http://tzgl.org/fhsgtsspen6/get.php

Attributes
  • extension

    .moia

  • offline_id

    K3PMMX2aWwpnYby88Dzg7tmaIW7Tv0HMWvSyr7t1

  • payload_url

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

    http://tzgl.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-rIyEiK9ekc 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: manager@mailtemp.ch Reserve e-mail address to contact us: helprestoremanager@airmail.cc Your personal ID: 0355gSd743d

rsa_pubkey.plain

Targets

    • Target

      b2cae558dc0eb333264ac7c5ae29b83fa1b2c0fd74a1b76e9d93dece8c53aef6

    • Size

      838KB

    • MD5

      a5ca107165af127435684d7c6577e5c1

    • SHA1

      5b8df1071c9657154bd39ea846f9ed9cf9014432

    • SHA256

      b2cae558dc0eb333264ac7c5ae29b83fa1b2c0fd74a1b76e9d93dece8c53aef6

    • SHA512

      2a2a0889a851b553eee7fa1d6311dbc85a99202794a4eca044a9b9a215c5cb63e2884d3925e48efc800e1f09c8bfd36f33ff2f9a559b602b4246a6bf0dccb50e

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • 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 v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

File Permissions Modification

1
T1222

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Discovery

System Information Discovery

1
T1082

Tasks