General

  • Target

    4D24AA49AFC8352934AA94F11BC74B4F.exe

  • Size

    3.7MB

  • Sample

    210708-he28eaaptn

  • MD5

    4d24aa49afc8352934aa94f11bc74b4f

  • SHA1

    f0ca806a70fc5ce42c1803a549ee624559effbf0

  • SHA256

    3557b514f9eada3659219bc4c1401d074f814ba82bf137ba0671fec66078d534

  • SHA512

    8004d80d858c10dccbb3b4ff33f8bb7ef4747dc9ad0b4bcde213da0adf65c9116753d70b4b72fd6b806cbe3b5f5f2b78fdda9ef64444c80d148329e075afe02b

Malware Config

Extracted

Family

vidar

Version

39.4

Botnet

933

C2

https://sergeevih43.tumblr.com

Attributes
  • profile_id

    933

Extracted

Family

redline

Botnet

Cana

C2

176.111.174.254:56328

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/

rc4.i32
rc4.i32

Targets

    • Target

      4D24AA49AFC8352934AA94F11BC74B4F.exe

    • Size

      3.7MB

    • MD5

      4d24aa49afc8352934aa94f11bc74b4f

    • SHA1

      f0ca806a70fc5ce42c1803a549ee624559effbf0

    • SHA256

      3557b514f9eada3659219bc4c1401d074f814ba82bf137ba0671fec66078d534

    • SHA512

      8004d80d858c10dccbb3b4ff33f8bb7ef4747dc9ad0b4bcde213da0adf65c9116753d70b4b72fd6b806cbe3b5f5f2b78fdda9ef64444c80d148329e075afe02b

    • 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

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Checks for common network interception software

      Looks in the registry for tools like Wireshark or Fiddler commonly used to analyze network activity.

    • Vidar Stealer

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • 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 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 SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

File Permissions Modification

1
T1222

Modify Registry

3
T1112

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

3
T1081

Discovery

Software Discovery

1
T1518

Query Registry

4
T1012

System Information Discovery

5
T1082

Peripheral Device Discovery

1
T1120

Remote System Discovery

1
T1018

Collection

Data from Local System

3
T1005

Command and Control

Web Service

1
T1102

Tasks