General

  • Target

    E461562A06F4C2CEA8CC91D9FC6FD75F393B79030D646.bin.zip

  • Size

    2.5MB

  • Sample

    230325-m9lhtacd47

  • MD5

    9a5c8b3a747172885a05bab8422409a4

  • SHA1

    1ca4fcf5863ceb87e7b2af0a8e183d59cd73d811

  • SHA256

    e021ad04be2d697e5e800a74d0aeb124fc2eed72f0b112a4ca574dc5ed7bd5df

  • SHA512

    a574d3786690afdc2fc6c30089bf7661e4e6c16961b532134945b7085330fc60bf85d6db8315aa0720c9b549589384ff8c6d3d4f5e6fe330211b1e577754eb72

  • SSDEEP

    49152:0SzTmiiddljBpvOwIxoJIN99BfBNDkqVV32tDkw11Q4CH5bmpp4M32JS:0wodljjEp9VBCququ6H5SpGM324

Malware Config

Extracted

Family

nullmixer

C2

http://razino.xyz/

Extracted

Family

smokeloader

Botnet

pub5

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

933

C2

https://shpak125.tumblr.com/

Attributes
  • profile_id

    933

Targets

    • Target

      E461562A06F4C2CEA8CC91D9FC6FD75F393B79030D646.bin

    • Size

      2.5MB

    • MD5

      0b682a6f8bd47a562e84e3359400a89d

    • SHA1

      07ef2f949e1cdbba996ded863cb21580292987fc

    • SHA256

      e461562a06f4c2cea8cc91d9fc6fd75f393b79030d6463169f71b0ff2f6b7ded

    • SHA512

      407e027b4c9a980e9b1a6d8f7dc5818a8e1ee75839de7125120daa68af8c0d65c499bac776cd09f9a4d5588ccb2e7dcef34a9256a698e7fd129dacd0223c4194

    • SSDEEP

      49152:EgK4ulwaGABcgp2FFQNR7QW+hIw9/2mniPJz2bzm5sihPpK6ky4Me2H:JKZ+aGA3poAaH9umihB5siWtP2H

    • Modifies Windows Defender Real-time Protection settings

    • NullMixer

      NullMixer is a malware dropper leading to an infection chain of a wide variety of malware families.

    • PrivateLoader

      PrivateLoader is a downloader sold as a pay-per-install malware distribution service.

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar Stealer

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Unexpected DNS network traffic destination

      Network traffic to other servers than the configured DNS servers was detected on the DNS port.

    • Accesses 2FA software files, possible credential harvesting

    • 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 Enterprise v6

Tasks