General

  • Target

    file.exe

  • Size

    133KB

  • Sample

    221003-jcdj6adcf8

  • MD5

    ad40140fb2fff508c7a2d8f162aa1fd9

  • SHA1

    d31d326af40135138dcf7d006737e3185d7a9068

  • SHA256

    43572840750d4ed2b43315118965c7611c39b2b693821825ca3bbb3c5eb59b6c

  • SHA512

    df250f890db80d47010686a213088d4c610435dc41d343d6e9694ebd75c5efdf5a98b1a7f8fc52542f1ef90d62870315cf3435406c978b45862e088ba94ae561

  • SSDEEP

    3072:9R5/ppCORsxCsM3NbznXliPZKRH/iE84tLftoLZxdpDO:92xtM3NnQK9/P88fIpD

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .adww

  • offline_id

    z8lhl4oForVEc7gy9Ra8rSqjYMl3xiFRuIW4not1

  • payload_url

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

    http://winnlinne.com/files/1/build3.exe

  • ransomnote

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rsa_pubkey.plain

Extracted

Family

raccoon

Botnet

1a17d9aed7a239440deb75d7a177f406

C2

http://193.38.55.180/

rc4.plain

Extracted

Family

vidar

Version

54.7

Botnet

517

C2

https://t.me/trampapanam

https://nerdculture.de/@yoxhyp

Attributes
  • profile_id

    517

Targets

    • Target

      file.exe

    • Size

      133KB

    • MD5

      ad40140fb2fff508c7a2d8f162aa1fd9

    • SHA1

      d31d326af40135138dcf7d006737e3185d7a9068

    • SHA256

      43572840750d4ed2b43315118965c7611c39b2b693821825ca3bbb3c5eb59b6c

    • SHA512

      df250f890db80d47010686a213088d4c610435dc41d343d6e9694ebd75c5efdf5a98b1a7f8fc52542f1ef90d62870315cf3435406c978b45862e088ba94ae561

    • SSDEEP

      3072:9R5/ppCORsxCsM3NbznXliPZKRH/iE84tLftoLZxdpDO:92xtM3NnQK9/P88fIpD

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

    • Detected Djvu ransomware

    • Detects Smokeloader packer

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Raccoon

      Raccoon is an infostealer written in C++ and first seen in 2019.

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Checks computer location settings

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

    • 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 Microsoft Outlook profiles

    • 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

4
T1012

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks