General

  • Target

    128A8139DEAF665018019B61025C099F.exe

  • Size

    3.2MB

  • Sample

    210708-esbrmrgcss

  • MD5

    128a8139deaf665018019b61025c099f

  • SHA1

    c2954ffeda92e1d4bad2a416afb8386ffd8fe828

  • SHA256

    e10f5bc4cb6610bd2aee334a581f2a9872b16c830bdce2f67ffe3cf57bf0b065

  • SHA512

    eb6bf322f941776245cebac5e26dd6721a1517eac0fac12b9e05466c17f1e1ffcdb6eda63365287b99d39fd30642a84bc120e95f2c19f7656d3c75c3d0772bf4

Malware Config

Extracted

Family

vidar

Version

39.4

Botnet

706

C2

https://sergeevih43.tumblr.com

Attributes
  • profile_id

    706

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

redline

Botnet

Cana

C2

176.111.174.254:56328

Extracted

Family

redline

Botnet

DomAni2

C2

flestriche.xyz:80

Targets

    • Target

      128A8139DEAF665018019B61025C099F.exe

    • Size

      3.2MB

    • MD5

      128a8139deaf665018019b61025c099f

    • SHA1

      c2954ffeda92e1d4bad2a416afb8386ffd8fe828

    • SHA256

      e10f5bc4cb6610bd2aee334a581f2a9872b16c830bdce2f67ffe3cf57bf0b065

    • SHA512

      eb6bf322f941776245cebac5e26dd6721a1517eac0fac12b9e05466c17f1e1ffcdb6eda63365287b99d39fd30642a84bc120e95f2c19f7656d3c75c3d0772bf4

    • 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.

    • 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

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source 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.

    • 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 NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

2
T1112

Disabling Security Tools

1
T1089

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Credentials in Files

3
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

3
T1005

Command and Control

Web Service

1
T1102

Tasks