General

  • Target

    10b52b26be692aea2c0365965a300d479698bdd72910592b55ea42dcb5a29e1b.exe

  • Size

    3.3MB

  • Sample

    210726-hcgewedvjn

  • MD5

    f875337de4c66e6ea4887b44c028f300

  • SHA1

    f4ed9c920a1436c7c9ab141a6d98ca64273e63c4

  • SHA256

    10b52b26be692aea2c0365965a300d479698bdd72910592b55ea42dcb5a29e1b

  • SHA512

    b0f705a81e3c58170a2afa34c246f48959af192d7a6280416b00799f1d8340373442c7ce69b0a4fc57651362747181ff944dfc33d9b4ee82ba97a16ed36ff3fe

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

39.7

Botnet

865

C2

https://shpak125.tumblr.com/

Attributes
  • profile_id

    865

Targets

    • Target

      10b52b26be692aea2c0365965a300d479698bdd72910592b55ea42dcb5a29e1b.exe

    • Size

      3.3MB

    • MD5

      f875337de4c66e6ea4887b44c028f300

    • SHA1

      f4ed9c920a1436c7c9ab141a6d98ca64273e63c4

    • SHA256

      10b52b26be692aea2c0365965a300d479698bdd72910592b55ea42dcb5a29e1b

    • SHA512

      b0f705a81e3c58170a2afa34c246f48959af192d7a6280416b00799f1d8340373442c7ce69b0a4fc57651362747181ff944dfc33d9b4ee82ba97a16ed36ff3fe

    • 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 NtCreateUserProcessOtherParentProcess

    • 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

    • 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

    • 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.

    • 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

Persistence

Modify Existing Service

1
T1031

Defense Evasion

Modify Registry

3
T1112

Disabling Security Tools

1
T1089

Virtualization/Sandbox Evasion

1
T1497

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

1
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

1
T1005

Command and Control

Web Service

1
T1102

Tasks