Resubmissions

15-07-2021 01:56

210715-z2bbq3nlp2 10

14-07-2021 22:53

210714-7r7lmpdc4e 10

14-07-2021 22:46

210714-577vrcg15s 10

General

  • Target

    9ED9D2543910E01707FAD071B76E52A1.exe

  • Size

    6.7MB

  • Sample

    210715-z2bbq3nlp2

  • MD5

    9ed9d2543910e01707fad071b76e52a1

  • SHA1

    95c7867404af5e2d8d93b145dc254816192ab640

  • SHA256

    384b35bfb6d07dda3ea948bb9aa47a3024822ff40d21a13932381d6386643acc

  • SHA512

    aa51f249f1e443fce520853c2295c88f14bdb57a8714500cfa027fbb11f6fefc3bc901ea91fbdb630b151a098d10ed6536ffd04a545a95957737d714fd18f176

Malware Config

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

Extracted

Family

vidar

Version

39.4

Botnet

706

C2

https://sergeevih43.tumblr.com/

Attributes
  • profile_id

    706

Extracted

Family

redline

Botnet

Cana

C2

176.111.174.254:56328

Extracted

Family

vidar

Version

39.5

Botnet

903

C2

https://olegf9844.tumblr.com/

Attributes
  • profile_id

    903

Targets

    • Target

      9ED9D2543910E01707FAD071B76E52A1.exe

    • Size

      6.7MB

    • MD5

      9ed9d2543910e01707fad071b76e52a1

    • SHA1

      95c7867404af5e2d8d93b145dc254816192ab640

    • SHA256

      384b35bfb6d07dda3ea948bb9aa47a3024822ff40d21a13932381d6386643acc

    • SHA512

      aa51f249f1e443fce520853c2295c88f14bdb57a8714500cfa027fbb11f6fefc3bc901ea91fbdb630b151a098d10ed6536ffd04a545a95957737d714fd18f176

    • 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

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

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

    • Vidar Stealer

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

    • Downloads MZ/PE file

    • Executes dropped EXE

    • VMProtect packed file

      Detects executables packed with VMProtect commercial packer.

    • Checks BIOS information in registry

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

    • Checks computer location settings

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

    • Loads dropped DLL

    • Obfuscated with Agile.Net obfuscator

      Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

    • 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 local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • 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.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    • autoit_exe

      AutoIT scripts compiled to PE executables.

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

4
T1112

Disabling Security Tools

1
T1089

Virtualization/Sandbox Evasion

1
T1497

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

4
T1081

Discovery

Query Registry

6
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

6
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

4
T1005

Command and Control

Web Service

1
T1102

Tasks