nullmixer

General

Target

E461562A06F4C2CEA8CC91D9FC6FD75F393B79030D646.exe
Size

2.5MB
Sample

230325-my5sbaee4z
MD5

0b682a6f8bd47a562e84e3359400a89d
SHA1

07ef2f949e1cdbba996ded863cb21580292987fc
SHA256

e461562a06f4c2cea8cc91d9fc6fd75f393b79030d6463169f71b0ff2f6b7ded
SHA512

407e027b4c9a980e9b1a6d8f7dc5818a8e1ee75839de7125120daa68af8c0d65c499bac776cd09f9a4d5588ccb2e7dcef34a9256a698e7fd129dacd0223c4194
SSDEEP

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

Score

10^/10

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

Extracted

Family

vidar

Version

39.7

Botnet

933

C2

https://shpak125.tumblr.com/

Attributes

profile_id
933

Targets

- Target
  
  E461562A06F4C2CEA8CC91D9FC6FD75F393B79030D646.exe
- Size
  
  2.5MB
- MD5
  
  0b682a6f8bd47a562e84e3359400a89d
- SHA1
  
  07ef2f949e1cdbba996ded863cb21580292987fc
- SHA256
  
  e461562a06f4c2cea8cc91d9fc6fd75f393b79030d6463169f71b0ff2f6b7ded
- SHA512
  
  407e027b4c9a980e9b1a6d8f7dc5818a8e1ee75839de7125120daa68af8c0d65c499bac776cd09f9a4d5588ccb2e7dcef34a9256a698e7fd129dacd0223c4194
- SSDEEP
  
  49152:EgK4ulwaGABcgp2FFQNR7QW+hIw9/2mniPJz2bzm5sihPpK6ky4Me2H:JKZ+aGA3poAaH9umihB5siWtP2H
Score

10^/10

nullmixer privateloader smokeloader vidar 933 pub5 aspackv2 backdoor dropper evasion loader stealer trojan
- Modifies Windows Defender Real-time Protection settings
  evasion trojan
- NullMixer
  NullMixer is a malware dropper leading to an infection chain of a wide variety of malware families.
  dropper nullmixer
- PrivateLoader
  PrivateLoader is a downloader sold as a pay-per-install malware distribution service.
  loader privateloader
- 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.
  trojan backdoor smokeloader
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Vidar
  Vidar is an infostealer based on Arkei stealer.
  stealer vidar
- Vidar Stealer
  stealer
- ASPack v2.12-2.42
  Detects executables packed with ASPack v2.12-2.42
  aspackv2
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE
- Loads dropped DLL
- Unexpected DNS network traffic destination
  Network traffic to other servers than the configured DNS servers was detected on the DNS port.
- 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 SetThreadContext
behavioral1 behavioral2