General

  • Target

    a871d6371c9371bfd2b7bd0b3176db98.exe

  • Size

    5.2MB

  • Sample

    211001-tgy2rscbc4

  • MD5

    a871d6371c9371bfd2b7bd0b3176db98

  • SHA1

    79963cd76d972288c6647f6fef75fa325253cc7f

  • SHA256

    3eaed1d4442ddd5cb4691a9cfd5aef6f374be2a3489b934d9043bb6e980a4841

  • SHA512

    9bcde0a5834170d2e0b5b5c6a48ea9964d66f84b6be63b992b7a95cb5e3118d48bf52bdbc3aa5107c9d0049f7d81f09db29b8343d99720b1bee5ae81988e4641

Malware Config

Extracted

Family

vidar

Version

41.1

Botnet

706

C2

https://mas.to/@bardak1ho

Attributes
  • profile_id

    706

Extracted

Family

redline

Botnet

jamesoldd

C2

65.108.20.195:6774

Extracted

Family

redline

Botnet

media26

C2

91.121.67.60:62102

Extracted

Family

smokeloader

Version

2020

C2

http://govsurplusstore.com/upload/

http://best-forsale.com/upload/

http://chmxnautoparts.com/upload/

http://kwazone.com/upload/

rc4.i32
rc4.i32

Extracted

Family

vidar

Version

41.1

Botnet

933

C2

https://mas.to/@bardak1ho

Attributes
  • profile_id

    933

Targets

    • Target

      a871d6371c9371bfd2b7bd0b3176db98.exe

    • Size

      5.2MB

    • MD5

      a871d6371c9371bfd2b7bd0b3176db98

    • SHA1

      79963cd76d972288c6647f6fef75fa325253cc7f

    • SHA256

      3eaed1d4442ddd5cb4691a9cfd5aef6f374be2a3489b934d9043bb6e980a4841

    • SHA512

      9bcde0a5834170d2e0b5b5c6a48ea9964d66f84b6be63b992b7a95cb5e3118d48bf52bdbc3aa5107c9d0049f7d81f09db29b8343d99720b1bee5ae81988e4641

    • 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

    • 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

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Checks BIOS information in registry

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

    • Loads dropped DLL

    • 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

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

5
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

2
T1005

Command and Control

Web Service

1
T1102

Tasks