General

  • Target

    592889261a2dfd7d5ad38615430753bb7e8302da7b85aadb9bc5555e99ee78cd

  • Size

    185KB

  • Sample

    211028-m5v7fsfhfp

  • MD5

    6fedf1dd7aeb64de96d1d803f81ab815

  • SHA1

    f09348e61d75e545b78561c1e49d56dc51b66a87

  • SHA256

    592889261a2dfd7d5ad38615430753bb7e8302da7b85aadb9bc5555e99ee78cd

  • SHA512

    e9831494ef6bcd89d2678e51820faeda97405be21219f5c5d15ff89213c53b69094740ffbff6413d56717e634f894ca1a7c4aff7fe57e58fc23c768fb0096da9

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

https://raw.githubusercontent.com/sqlitey/sqlite/master/speed.ps1

Extracted

Family

smokeloader

Version

2020

C2

http://brandyjaggers.com/upload/

http://andbal.com/upload/

http://alotofquotes.com/upload/

http://szpnc.cn/upload/

http://uggeboots.com/upload/

http://100klv.com/upload/

http://rapmusic.at/upload/

rc4.i32
rc4.i32

Targets

    • Target

      592889261a2dfd7d5ad38615430753bb7e8302da7b85aadb9bc5555e99ee78cd

    • Size

      185KB

    • MD5

      6fedf1dd7aeb64de96d1d803f81ab815

    • SHA1

      f09348e61d75e545b78561c1e49d56dc51b66a87

    • SHA256

      592889261a2dfd7d5ad38615430753bb7e8302da7b85aadb9bc5555e99ee78cd

    • SHA512

      e9831494ef6bcd89d2678e51820faeda97405be21219f5c5d15ff89213c53b69094740ffbff6413d56717e634f894ca1a7c4aff7fe57e58fc23c768fb0096da9

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • suricata: ET MALWARE ServHelper CnC Inital Checkin

      suricata: ET MALWARE ServHelper CnC Inital Checkin

    • suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

      suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

    • Grants admin privileges

      Uses net.exe to modify the user's privileges.

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Modifies RDP port number used by Windows

    • Sets DLL path for service in the registry

    • UPX packed file

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

    • Deletes itself

    • Loads dropped DLL

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Account Manipulation

1
T1098

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

2
T1112

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

1
T1082

Lateral Movement

Remote Desktop Protocol

1
T1076

Tasks