nullmixer

General

Target

dc381eab0f4f7fec5389da42518f26a9
Size

2.6MB
Sample

231228-nrfqaagfhp
MD5

dc381eab0f4f7fec5389da42518f26a9
SHA1

5de344c715c5a09946100bce31ad9f6d1d6342f8
SHA256

f783fddd213ea27df398d887e7dadecc3ff7a60f4dff68254581a1d2c02a8291
SHA512

f9328d31933de3511178488c978a9b0331874a3dccdfb584f2ed48973c8f3b105821cedc3cb1af4a7d22222419f5154e581976632d59ad681761c6998acea943
SSDEEP

49152:Eg5QjFpXAm8Z69ojZXjhCmtnVVQPySOeam65N9aelNpnCu0j/G0qrv9sjDYgY+mv:Jtm469ojFrPzSOfmmDaevlCuSSrvXgqv

Score

10^/10

Malware Config

Extracted

Family

nullmixer

C2

http://razino.xyz/

Extracted

Family

vidar

Version

39.7

Botnet

933

C2

https://shpak125.tumblr.com/

Attributes

profile_id
933

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

Targets

- Target
  
  dc381eab0f4f7fec5389da42518f26a9
- Size
  
  2.6MB
- MD5
  
  dc381eab0f4f7fec5389da42518f26a9
- SHA1
  
  5de344c715c5a09946100bce31ad9f6d1d6342f8
- SHA256
  
  f783fddd213ea27df398d887e7dadecc3ff7a60f4dff68254581a1d2c02a8291
- SHA512
  
  f9328d31933de3511178488c978a9b0331874a3dccdfb584f2ed48973c8f3b105821cedc3cb1af4a7d22222419f5154e581976632d59ad681761c6998acea943
- SSDEEP
  
  49152:Eg5QjFpXAm8Z69ojZXjhCmtnVVQPySOeam65N9aelNpnCu0j/G0qrv9sjDYgY+mv:Jtm469ojFrPzSOfmmDaevlCuSSrvXgqv
Score

10^/10

nullmixer smokeloader vidar 933 pub5 aspackv2 backdoor dropper evasion 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
- 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.
- Drops file in System32 directory
- Suspicious use of SetThreadContext
behavioral1 behavioral2