General

  • Target

    20F43079CF75825C5E909B04F3C0B8BDB2F71BE7477FB.exe

  • Size

    3.9MB

  • Sample

    211001-bq89zsaeg9

  • MD5

    9b4c66a8f89b5784c7aba7502b65338d

  • SHA1

    7848450e3928aeb0caa86972f588c509d679ece7

  • SHA256

    20f43079cf75825c5e909b04f3c0b8bdb2f71be7477fb3f12e85fb58dd8b77e9

  • SHA512

    8b1d083c0d100df90fcd48a50c7752981a7bc2c0939915ce5d0359e776f1785bf366d5b657e375c881872e007e3b9ac3aedf615c627f140f587e1cdfa7b9955c

Malware Config

Extracted

Family

vidar

Version

40

Botnet

706

C2

https://lenak513.tumblr.com/

Attributes
  • profile_id

    706

Extracted

Family

redline

Botnet

pab3

C2

185.215.113.15:61506

Extracted

Family

smokeloader

Version

2020

C2

http://aucmoney.com/upload/

http://thegymmum.com/upload/

http://atvcampingtrips.com/upload/

http://kuapakualaman.com/upload/

http://renatazarazua.com/upload/

http://nasufmutlu.com/upload/

rc4.i32
rc4.i32

Extracted

Family

vidar

Version

41.1

Botnet

1028

C2

https://mas.to/@bardak1ho

Attributes
  • profile_id

    1028

Targets

    • Target

      20F43079CF75825C5E909B04F3C0B8BDB2F71BE7477FB.exe

    • Size

      3.9MB

    • MD5

      9b4c66a8f89b5784c7aba7502b65338d

    • SHA1

      7848450e3928aeb0caa86972f588c509d679ece7

    • SHA256

      20f43079cf75825c5e909b04f3c0b8bdb2f71be7477fb3f12e85fb58dd8b77e9

    • SHA512

      8b1d083c0d100df90fcd48a50c7752981a7bc2c0939915ce5d0359e776f1785bf366d5b657e375c881872e007e3b9ac3aedf615c627f140f587e1cdfa7b9955c

    • Modifies Windows Defender Real-time Protection settings

    • 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.

    • Vidar Stealer

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

    • 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.

    • Adds Run key to start application

    • 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.

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

3
T1112

Disabling Security Tools

1
T1089

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Remote System Discovery

1
T1018

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Tasks