General

  • Target

    56221b7ad16a9c49d02a3916fba76504b9e4d66d9150b7e882f9a0747208ec80

  • Size

    790KB

  • Sample

    230319-ctcwmaee55

  • MD5

    7e79fbc05e59e5b7e91ebd0c5a2efe78

  • SHA1

    8d0c7ca5e6e97cdf369238f2d2f40182793810ee

  • SHA256

    56221b7ad16a9c49d02a3916fba76504b9e4d66d9150b7e882f9a0747208ec80

  • SHA512

    bd8005e66585f78bc5146431682738e33488a59348c6f4fbcffe96c6182506f61e2367846e7e950c3f4f92d639d94c26ab105276de3c07a5085e10785e48503d

  • SSDEEP

    12288:lPHvMxVzZz++6riV2ClysEhnUJ89QM52bpFhRJqLVfsZLKnXDqEq79fVKQ2/E:FEfZz++f87Q812bHzACZLKzq/79j2/

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .dapo

  • offline_id

    8EM6M9LqEzIk18qaQ87WiPQ1u84RRdej5V1ovht1

  • 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-vbVkogQdu2 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: 0667JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

3

Botnet

d6ef050131e7d5a1d595c51613328971

C2

https://t.me/zaskullz

https://steamcommunity.com/profiles/76561199486572327

http://135.181.87.234:80

Attributes
  • profile_id_v2

    d6ef050131e7d5a1d595c51613328971

Targets

    • Target

      56221b7ad16a9c49d02a3916fba76504b9e4d66d9150b7e882f9a0747208ec80

    • Size

      790KB

    • MD5

      7e79fbc05e59e5b7e91ebd0c5a2efe78

    • SHA1

      8d0c7ca5e6e97cdf369238f2d2f40182793810ee

    • SHA256

      56221b7ad16a9c49d02a3916fba76504b9e4d66d9150b7e882f9a0747208ec80

    • SHA512

      bd8005e66585f78bc5146431682738e33488a59348c6f4fbcffe96c6182506f61e2367846e7e950c3f4f92d639d94c26ab105276de3c07a5085e10785e48503d

    • SSDEEP

      12288:lPHvMxVzZz++6riV2ClysEhnUJ89QM52bpFhRJqLVfsZLKnXDqEq79fVKQ2/E:FEfZz++f87Q812bHzACZLKzq/79j2/

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • 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

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses 2FA software files, possible credential harvesting

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • 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

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

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

3
T1005

Tasks