General

  • Target

    c727f0efb8b9068e64141478c23e7bf5908a3abb469f82767019a99b36ed639c

  • Size

    219KB

  • Sample

    211210-fs7amagghj

  • MD5

    e107da849d573ba4bc9b14d855ab8b8a

  • SHA1

    58632613e516af3148e4aacf388b1a694875d238

  • SHA256

    c727f0efb8b9068e64141478c23e7bf5908a3abb469f82767019a99b36ed639c

  • SHA512

    af4d18af5e93472816818e6bd883749d8c3ec5036684120c41b88c44e79502e2fb0081b65f0c41758d6a07df7a58e383680829f442a1fddb6aee5e84d3a03737

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://rcacademy.at/upload/

http://e-lanpengeonline.com/upload/

http://vjcmvz.cn/upload/

http://galala.ru/upload/

http://witra.ru/upload/

rc4.i32
rc4.i32

Targets

    • Target

      c727f0efb8b9068e64141478c23e7bf5908a3abb469f82767019a99b36ed639c

    • Size

      219KB

    • MD5

      e107da849d573ba4bc9b14d855ab8b8a

    • SHA1

      58632613e516af3148e4aacf388b1a694875d238

    • SHA256

      c727f0efb8b9068e64141478c23e7bf5908a3abb469f82767019a99b36ed639c

    • SHA512

      af4d18af5e93472816818e6bd883749d8c3ec5036684120c41b88c44e79502e2fb0081b65f0c41758d6a07df7a58e383680829f442a1fddb6aee5e84d3a03737

    • 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