General

  • Target

    a65e8cca4d7424ebda6db2a1b8dc9ae880aaf05bfa841bf5644e761b9deda75a.exe

  • Size

    2.5MB

  • Sample

    210720-1kyqz3q4ae

  • MD5

    99afd1005c22fbb949c0e539016b5baf

  • SHA1

    508e4e158c930c7e9245d6f0519dd89c850bef0e

  • SHA256

    a65e8cca4d7424ebda6db2a1b8dc9ae880aaf05bfa841bf5644e761b9deda75a

  • SHA512

    977bbe7a79962b2ddafa837890877f028d26eb4ce52c0ba51cf849ff57a3d619d692de47631d27c953df095f442f31f46a18652e9c9bf8f74cc263b6e1b0afa6

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

39.6

Botnet

933

C2

https://sslamlssa1.tumblr.com/

Attributes
  • profile_id

    933

Extracted

Family

redline

Botnet

AniNEW

C2

akedauiver.xyz:80

Extracted

Family

cryptbot

C2

smatau22.top

moryuf02.top

Attributes
  • payload_url

    http://guremd03.top/download.php?file=lv.exe

Targets

    • Target

      a65e8cca4d7424ebda6db2a1b8dc9ae880aaf05bfa841bf5644e761b9deda75a.exe

    • Size

      2.5MB

    • MD5

      99afd1005c22fbb949c0e539016b5baf

    • SHA1

      508e4e158c930c7e9245d6f0519dd89c850bef0e

    • SHA256

      a65e8cca4d7424ebda6db2a1b8dc9ae880aaf05bfa841bf5644e761b9deda75a

    • SHA512

      977bbe7a79962b2ddafa837890877f028d26eb4ce52c0ba51cf849ff57a3d619d692de47631d27c953df095f442f31f46a18652e9c9bf8f74cc263b6e1b0afa6

    • CryptBot

      A C++ stealer distributed widely in bundle with other software.

    • CryptBot Payload

    • 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.

    • Raccoon

      Simple but powerful infostealer which was very active in 2019.

    • 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 NtCreateProcessExOtherParentProcess

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Nirsoft

    • 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.

    • Loads dropped DLL

    • 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 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.

    • 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 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

3
T1112

Disabling Security Tools

1
T1089

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

4
T1081

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Remote System Discovery

1
T1018

Collection

Data from Local System

4
T1005

Command and Control

Web Service

1
T1102

Tasks