nullmixer

General

Target

ab82200859c0dd239561d9befa438267
Size

3.2MB
Sample

231227-ky77bsgghm
MD5

ab82200859c0dd239561d9befa438267
SHA1

226d8a156cd89db03dbf16edd5a4986ba5a0d559
SHA256

91949edb9145bda3b1336a5513c44707a86300ca5a378411c9bf8800b8127db9
SHA512

87a7d321be8929e6cef6b2868040b10c348e973672707bafbb5c2e116f6396e2acf037b0728c25acaa1f5f185dd732c3415928a3897b54c0e7acf9191753dc04
SSDEEP

98304:xKri7ixZUvFyPxtWfX4MtZgP12nCvLUBsKaOJr:xKuWx+oPxtWv4Mt6P1dLUCKxB

Score

10^/10

Malware Config

Extracted

Family

nullmixer

C2

http://sokiran.xyz/

Extracted

Family

vidar

Version

39.6

Botnet

933

C2

https://sslamlssa1.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
  
  ab82200859c0dd239561d9befa438267
- Size
  
  3.2MB
- MD5
  
  ab82200859c0dd239561d9befa438267
- SHA1
  
  226d8a156cd89db03dbf16edd5a4986ba5a0d559
- SHA256
  
  91949edb9145bda3b1336a5513c44707a86300ca5a378411c9bf8800b8127db9
- SHA512
  
  87a7d321be8929e6cef6b2868040b10c348e973672707bafbb5c2e116f6396e2acf037b0728c25acaa1f5f185dd732c3415928a3897b54c0e7acf9191753dc04
- SSDEEP
  
  98304:xKri7ixZUvFyPxtWfX4MtZgP12nCvLUBsKaOJr:xKuWx+oPxtWv4Mt6P1dLUCKxB
Score

10^/10

nullmixer smokeloader vidar 933 pub5 aspackv2 backdoor dropper evasion persistence stealer trojan upx
- 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
- Nirsoft
- Vidar Stealer
  stealer
- ASPack v2.12-2.42
  Detects executables packed with ASPack v2.12-2.42
  aspackv2
- Executes dropped EXE
- Loads dropped DLL
- UPX packed file
  Detects executables packed with UPX/modified UPX open source packer.
  upx
- Unexpected DNS network traffic destination
  Network traffic to other servers than the configured DNS servers was detected on the DNS port.
- Adds Run key to start application
  persistence
- 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