General

  • Target

    CA7E5FA92FB5F75D4296A3489693776B.exe

  • Size

    3.4MB

  • Sample

    210712-7dr6vjstwj

  • MD5

    ca7e5fa92fb5f75d4296a3489693776b

  • SHA1

    fe6166676fd4b04edee87eeaf1869e6f50efcc11

  • SHA256

    3a9e17be4ef9e2cd297c58f11abcd72f0b3c2c18e9ef581e1990ec9b9dfd6498

  • SHA512

    db692ab699d279ef5a8b1a650b058a133b262195160b9fbcb607616f572f77d338cc7a8a61fd1451f609cd3df22706fc90ddf36680c6a2d663b289960a9a70c0

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

redline

Botnet

Ani

C2

detuyaluro.xyz:80

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

      CA7E5FA92FB5F75D4296A3489693776B.exe

    • Size

      3.4MB

    • MD5

      ca7e5fa92fb5f75d4296a3489693776b

    • SHA1

      fe6166676fd4b04edee87eeaf1869e6f50efcc11

    • SHA256

      3a9e17be4ef9e2cd297c58f11abcd72f0b3c2c18e9ef581e1990ec9b9dfd6498

    • SHA512

      db692ab699d279ef5a8b1a650b058a133b262195160b9fbcb607616f572f77d338cc7a8a61fd1451f609cd3df22706fc90ddf36680c6a2d663b289960a9a70c0

    • 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.

    • 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

    • 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.

    • Loads dropped DLL

    • Adds Run key to start application

    • 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

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

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

5
T1082

Peripheral Device Discovery

1
T1120

Command and Control

Web Service

1
T1102

Tasks