nullmixer

General

Target

8F8B341230323B995C1CDE1D534031092BFDDB56411DA.exe
Size

2.6MB
Sample

230407-1z3agacf71
MD5

4b8a2ca2c5c007e8e915d1716194933d
SHA1

eaf6bbb82054ec30411806eafd927e2dfe2828a6
SHA256

8f8b341230323b995c1cde1d534031092bfddb56411dac43d155e5366681e1c7
SHA512

fc7f9c0f63b0d6035241f5bb2c4279fbf57f6df3c056796705502eca9deb8827270dcb10b8ea201fba03be8abeb123f64d11a784d8ce84ac83d2a9def2cb5c63
SSDEEP

49152:xcBwPkZVi7iKiF8cUvFyPn+pmtDLgqVaNo1z8ESEwJ84vLRaBtIl9mTMCbsrHH:xSri7ixZUvFyP+EtPfVAo1QEJCvLUBsR

Score

10^/10

Malware Config

Extracted

Family

nullmixer

C2

http://lotzini.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
  
  8F8B341230323B995C1CDE1D534031092BFDDB56411DA.exe
- Size
  
  2.6MB
- MD5
  
  4b8a2ca2c5c007e8e915d1716194933d
- SHA1
  
  eaf6bbb82054ec30411806eafd927e2dfe2828a6
- SHA256
  
  8f8b341230323b995c1cde1d534031092bfddb56411dac43d155e5366681e1c7
- SHA512
  
  fc7f9c0f63b0d6035241f5bb2c4279fbf57f6df3c056796705502eca9deb8827270dcb10b8ea201fba03be8abeb123f64d11a784d8ce84ac83d2a9def2cb5c63
- SSDEEP
  
  49152:xcBwPkZVi7iKiF8cUvFyPn+pmtDLgqVaNo1z8ESEwJ84vLRaBtIl9mTMCbsrHH:xSri7ixZUvFyP+EtPfVAo1QEJCvLUBsR
Score

10^/10

nullmixer privateloader smokeloader vidar 933 pub5 aspackv2 backdoor dropper evasion loader spyware stealer trojan persistence
- 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
- Modifies Installed Components in the registry
  persistence
- 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
- Reads user/profile data of web browsers
  Infostealers often target stored browser data, which can include saved credentials etc.
  spyware stealer
- 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