General

  • Target

    95400a20cf7cddbb6fe4321a34daa92cddedf3edeb01edf9df54cfaecd5678c5

  • Size

    196KB

  • Sample

    220925-dlt1lsecfn

  • MD5

    54f473e9691fb6c9920b0bdf32ea14e9

  • SHA1

    b7f591e0ab0f6726579de69c9ec896301673d680

  • SHA256

    95400a20cf7cddbb6fe4321a34daa92cddedf3edeb01edf9df54cfaecd5678c5

  • SHA512

    68bfb08da500743f58293fabdc024f71d0f480a81a7c546a3c4dee148ffb8ba4390a2d9a18f2fc14b7152a9f1c59220a977a5b00be797cc3086c49f2e0e5ad33

  • SSDEEP

    3072:zGa6SL3MNRNN519uKPqNAcK+q6XTfSBmCe/PkkXx:HLaRouqNAmRfI

Malware Config

Extracted

Family

djvu

C2

http://winnlinne.com/lancer/get.php

Attributes
  • extension

    .ofww

  • offline_id

    xkNzhkB1wvgoDI7Uo0HPNLY3qCuwoFpP7nlhlut1

  • payload_url

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

    http://winnlinne.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-EWKSsSJiVn 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: 0569Jhyjd

rsa_pubkey.plain

Targets

    • Target

      95400a20cf7cddbb6fe4321a34daa92cddedf3edeb01edf9df54cfaecd5678c5

    • Size

      196KB

    • MD5

      54f473e9691fb6c9920b0bdf32ea14e9

    • SHA1

      b7f591e0ab0f6726579de69c9ec896301673d680

    • SHA256

      95400a20cf7cddbb6fe4321a34daa92cddedf3edeb01edf9df54cfaecd5678c5

    • SHA512

      68bfb08da500743f58293fabdc024f71d0f480a81a7c546a3c4dee148ffb8ba4390a2d9a18f2fc14b7152a9f1c59220a977a5b00be797cc3086c49f2e0e5ad33

    • SSDEEP

      3072:zGa6SL3MNRNN519uKPqNAcK+q6XTfSBmCe/PkkXx:HLaRouqNAmRfI

    • Detected Djvu ransomware

    • Detects Smokeloader packer

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Deletes itself

    • Loads dropped DLL

    • Modifies file permissions

    • Accesses Microsoft Outlook profiles

    • 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

1
T1112

Discovery

System Information Discovery

2
T1082

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

Collection

Email Collection

1
T1114

Tasks