General

  • Target

    fecb53b58828d596de3d420ee56c3d648a31c2d558238be0d235b2a46f2abf85

  • Size

    185KB

  • Sample

    221122-a6767agg5s

  • MD5

    9b9720d733b5186e71abad71e927b9b5

  • SHA1

    df5521cf315f7e7c536722b470b7f8fdc2170c11

  • SHA256

    fecb53b58828d596de3d420ee56c3d648a31c2d558238be0d235b2a46f2abf85

  • SHA512

    8083a91699cf122d8bee40aa7d3563b9ad82982cc7c1d33a7ff9ec92014ecc82c38c7240c25584f0c3055032706496bf45f2bd4010562f3dbf8e0dddd4e4408a

  • SSDEEP

    3072:wlnQS5tvVKWkPp7g5YEXTny5iyuVRK5OfhZrXK0RRV5/MG2aCRs:w91vQtPw1yuVs5OC0RRVl8t

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .tcbu

  • offline_id

    JBPpFMvWlKMsKlJRmPJl5e09RSnYrRJya1oX8xt1

  • payload_url

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

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

  • ransomnote

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rsa_pubkey.plain

Extracted

Family

redline

Botnet

KRIPT

C2

212.8.246.157:32348

Attributes
  • auth_value

    80ebe4bab7a98a7ce9c75989ff9f40b4

Extracted

Family

amadey

Version

3.50

C2

193.56.146.174/g84kvj4jck/index.php

Extracted

Family

vidar

Version

55.7

Botnet

517

C2

https://t.me/deadftx

https://www.ultimate-guitar.com/u/smbfupkuhrgc1

Attributes
  • profile_id

    517

Targets

    • Target

      fecb53b58828d596de3d420ee56c3d648a31c2d558238be0d235b2a46f2abf85

    • Size

      185KB

    • MD5

      9b9720d733b5186e71abad71e927b9b5

    • SHA1

      df5521cf315f7e7c536722b470b7f8fdc2170c11

    • SHA256

      fecb53b58828d596de3d420ee56c3d648a31c2d558238be0d235b2a46f2abf85

    • SHA512

      8083a91699cf122d8bee40aa7d3563b9ad82982cc7c1d33a7ff9ec92014ecc82c38c7240c25584f0c3055032706496bf45f2bd4010562f3dbf8e0dddd4e4408a

    • SSDEEP

      3072:wlnQS5tvVKWkPp7g5YEXTny5iyuVRK5OfhZrXK0RRV5/MG2aCRs:w91vQtPw1yuVs5OC0RRVl8t

    • Amadey

      Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

    • Detect Amadey credential stealer module

    • Detected Djvu ransomware

    • Detects Smokeloader packer

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine payload

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Checks computer location settings

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

    • Loads dropped DLL

    • Modifies file permissions

    • Reads local data of messenger clients

      Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

    • 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.

    • Legitimate hosting services abused for malware hosting/C2

    • 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

2
T1112

Credential Access

Credentials in Files

4
T1081

Discovery

Query Registry

4
T1012

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

4
T1005

Email Collection

1
T1114

Command and Control

Web Service

1
T1102

Tasks