General

  • Target

    fbfd388570477b797f1a6ea38962b0b6e6cffa91b26e64564f0949f11a14ebd1

  • Size

    284KB

  • Sample

    211022-a4msgabab2

  • MD5

    7ca7176f25ddd19f03a2aafd473cd876

  • SHA1

    f467aea699c06d74c22059d5358ee6ae70e98040

  • SHA256

    fbfd388570477b797f1a6ea38962b0b6e6cffa91b26e64564f0949f11a14ebd1

  • SHA512

    aecfeec113c11b366cefed8b9b045c2eb77e6eac9c63243b1fb8f8398acb25306d96efb96531c7c4f8bb79dbd4898218853e153e04aa258e554cb791e9a48e02

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://gejajoo7.top/

http://sysaheu9.top/

http://nusurtal4f.net/

http://netomishnetojuk.net/

http://escalivrouter.net/

http://nick22doom4.net/

http://wrioshtivsio.su/

http://nusotiso4.su/

http://rickkhtovkka.biz/

http://palisotoliso.net/

rc4.i32
rc4.i32
rc4.i32
rc4.i32

Extracted

Family

redline

Botnet

MRFSW

C2

65.21.194.86:2451

Extracted

Family

vidar

Version

41.5

Botnet

1047

C2

https://mas.to/@xeroxxx

Attributes
  • profile_id

    1047

Extracted

Family

vidar

Version

41.5

Botnet

706

C2

https://mas.to/@xeroxxx

Attributes
  • profile_id

    706

Extracted

Family

vidar

Version

41.5

Botnet

517

C2

https://mas.to/@xeroxxx

Attributes
  • profile_id

    517

Extracted

Family

djvu

C2

http://rlrz.org/lancer

Targets

    • Target

      fbfd388570477b797f1a6ea38962b0b6e6cffa91b26e64564f0949f11a14ebd1

    • Size

      284KB

    • MD5

      7ca7176f25ddd19f03a2aafd473cd876

    • SHA1

      f467aea699c06d74c22059d5358ee6ae70e98040

    • SHA256

      fbfd388570477b797f1a6ea38962b0b6e6cffa91b26e64564f0949f11a14ebd1

    • SHA512

      aecfeec113c11b366cefed8b9b045c2eb77e6eac9c63243b1fb8f8398acb25306d96efb96531c7c4f8bb79dbd4898218853e153e04aa258e554cb791e9a48e02

    • Detected Djvu ransomware

    • 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.

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Vidar Stealer

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Deletes itself

    • 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.

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • 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.

    • Checks whether UAC is enabled

    • 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 NtSetInformationThreadHideFromDebugger

    • 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

Virtualization/Sandbox Evasion

1
T1497

File Permissions Modification

1
T1222

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

5
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

3
T1005

Command and Control

Web Service

1
T1102

Tasks