General

  • Target

    4554BF0AB199AF75AF2199E9BDE53A33.exe

  • Size

    4.2MB

  • Sample

    210712-6jtb8b94h2

  • MD5

    4554bf0ab199af75af2199e9bde53a33

  • SHA1

    94db08baa878322eec7359ebf0f43feb9ac9c97e

  • SHA256

    2d1d2cd3f3cbce923d3db88aa44212210da57e9e032e2ff4a1766fe51ff1255e

  • SHA512

    08074ed52dc8b7dd1d74f119b965cae8d03c0fa2696cedbb567898678daa758a3e55bb38380dbc60ccdd6cf1ad5dd5e284df4b4a879ae673b53217a87c593670

Malware Config

Extracted

Family

vidar

Version

39.4

Botnet

890

C2

https://sergeevih43.tumblr.com/

Attributes
  • profile_id

    890

Extracted

Family

smokeloader

Version

2020

C2

http://conceitosseg.com/upload/

http://integrasidata.com/upload/

http://ozentekstil.com/upload/

http://finbelportal.com/upload/

http://telanganadigital.com/upload/

http://999080321newfolder1002002131-service1002.space/

http://999080321newfolder1002002231-service1002.space/

http://999080321newfolder3100231-service1002.space/

http://999080321newfolder1002002431-service1002.space/

http://999080321newfolder1002002531-service1002.space/

http://999080321newfolder33417-012425999080321.space/

http://999080321test125831-service10020125999080321.space/

http://999080321test136831-service10020125999080321.space/

http://999080321test147831-service10020125999080321.space/

http://999080321test146831-service10020125999080321.space/

http://999080321test134831-service10020125999080321.space/

http://999080321est213531-service1002012425999080321.ru/

http://999080321yes1t3481-service10020125999080321.ru/

http://999080321test13561-service10020125999080321.su/

http://999080321test14781-service10020125999080321.info/

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

Targets

    • Target

      4554BF0AB199AF75AF2199E9BDE53A33.exe

    • Size

      4.2MB

    • MD5

      4554bf0ab199af75af2199e9bde53a33

    • SHA1

      94db08baa878322eec7359ebf0f43feb9ac9c97e

    • SHA256

      2d1d2cd3f3cbce923d3db88aa44212210da57e9e032e2ff4a1766fe51ff1255e

    • SHA512

      08074ed52dc8b7dd1d74f119b965cae8d03c0fa2696cedbb567898678daa758a3e55bb38380dbc60ccdd6cf1ad5dd5e284df4b4a879ae673b53217a87c593670

    • Modifies Windows Defender Real-time Protection settings

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • 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.

    • Socelars

      Socelars is an infostealer targeting browser cookies and credit card credentials.

    • Socelars Payload

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar Stealer

    • Downloads MZ/PE file

    • Executes dropped EXE

    • UPX packed file

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

    • VMProtect packed file

      Detects executables packed with VMProtect commercial packer.

    • 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

    • 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 SetThreadContext

    • autoit_exe

      AutoIT scripts compiled to PE executables.

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

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

3
T1012

System Information Discovery

5
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Tasks