General

  • Target

    1b5164f044f2c3a2cc01b2448bc0eb8a

  • Size

    2.6MB

  • Sample

    231230-rql3fsbad6

  • MD5

    1b5164f044f2c3a2cc01b2448bc0eb8a

  • SHA1

    d1b28f3d20560aa3ae207843b2605d53f645247e

  • SHA256

    318c2194ae43ddccf9ccf21d07087c6059683d3aba0d04f4fd720d503095950d

  • SHA512

    4ad85a2b6b4591ac690a16f778e38a514470fb078948b974e525b0388abc316df75add8df3b02016adae44918450fa9762d2e1887ccf6c64b5bdda10085b056f

  • SSDEEP

    49152:EgBtIhtz0tHnR8mxEYh4YkoVZCiMDf4j/Ee3O9ilydBFgabowS9c/aA:JBt2tzcKmy04K4y/9BydBXokSA

Malware Config

Extracted

Family

nullmixer

C2

http://lotzini.xyz/

Extracted

Family

smokeloader

Botnet

pub5

Extracted

Family

vidar

Version

39.7

Botnet

933

C2

https://shpak125.tumblr.com/

Attributes
  • profile_id

    933

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
rc4.i32

Targets

    • Target

      1b5164f044f2c3a2cc01b2448bc0eb8a

    • Size

      2.6MB

    • MD5

      1b5164f044f2c3a2cc01b2448bc0eb8a

    • SHA1

      d1b28f3d20560aa3ae207843b2605d53f645247e

    • SHA256

      318c2194ae43ddccf9ccf21d07087c6059683d3aba0d04f4fd720d503095950d

    • SHA512

      4ad85a2b6b4591ac690a16f778e38a514470fb078948b974e525b0388abc316df75add8df3b02016adae44918450fa9762d2e1887ccf6c64b5bdda10085b056f

    • SSDEEP

      49152:EgBtIhtz0tHnR8mxEYh4YkoVZCiMDf4j/Ee3O9ilydBFgabowS9c/aA:JBt2tzcKmy04K4y/9BydBXokSA

    • 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.

    • 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.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • 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

    • 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.

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Privilege Escalation

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Defense Evasion

Modify Registry

1
T1112

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Discovery

Query Registry

4
T1012

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Command and Control

Web Service

1
T1102

Tasks