General

  • Target

    3e83abe805ea3cd0852235f3365e1cf9

  • Size

    3.3MB

  • Sample

    240102-vffz8sadbl

  • MD5

    3e83abe805ea3cd0852235f3365e1cf9

  • SHA1

    6bfb7ee7cb01ed2e9e50658193847954900f26a5

  • SHA256

    079e8468f9e6f11a839e931ab04d45036acb2574aa37a4f749d6db98a61509cc

  • SHA512

    99746e551e3cb48601ec6875d1e7a33872391edc71b50777e0856cfeefa3e7bc3ab10082e06e300de27a78074ab89191427de881984f1b7c63d1a8d040472a2a

  • SSDEEP

    49152:xcBfxD1zheQnY4So8DiYJnmlJxqqWkDpyZvVivHtlJp/k3EwJ84vLRaBtIl9mT0C:xQ18QgiBlJxzW3ZWtlPcUCvLUBsKS2

Malware Config

Extracted

Family

nullmixer

C2

http://razino.xyz/

Extracted

Family

smokeloader

Botnet

pub5

Extracted

Family

vidar

Version

39.4

Botnet

706

C2

https://sergeevih43.tumblr.com/

Attributes
  • profile_id

    706

Extracted

Family

smokeloader

Version

2020

C2

http://ppcspb.com/upload/

http://mebbing.com/upload/

http://twcamel.com/upload/

http://howdycash.com/upload/

http://lahuertasonora.com/upload/

http://kpotiques.com/upload/

rc4.i32
rc4.i32

Targets

    • Target

      3e83abe805ea3cd0852235f3365e1cf9

    • Size

      3.3MB

    • MD5

      3e83abe805ea3cd0852235f3365e1cf9

    • SHA1

      6bfb7ee7cb01ed2e9e50658193847954900f26a5

    • SHA256

      079e8468f9e6f11a839e931ab04d45036acb2574aa37a4f749d6db98a61509cc

    • SHA512

      99746e551e3cb48601ec6875d1e7a33872391edc71b50777e0856cfeefa3e7bc3ab10082e06e300de27a78074ab89191427de881984f1b7c63d1a8d040472a2a

    • SSDEEP

      49152:xcBfxD1zheQnY4So8DiYJnmlJxqqWkDpyZvVivHtlJp/k3EwJ84vLRaBtIl9mT0C:xQ18QgiBlJxzW3ZWtlPcUCvLUBsKS2

    • 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.

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Nirsoft

    • 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

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • 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 v15

Tasks