General

  • Target

    363fece1255b4dd7f688225dbc090e8b.exe

  • Size

    262KB

  • Sample

    211018-nl6draeddr

  • MD5

    363fece1255b4dd7f688225dbc090e8b

  • SHA1

    624e505f3b828e0f27bd8c2d82687def04ea63d9

  • SHA256

    477af70aacb75d845210fbb00fe37d4c6bd22422ed62dc859ebdf1dc93433c3a

  • SHA512

    70db537ae80612b88db8dfcb33d61a1deecd97555c2d150a9e2fdbaa4a6e89ca2600afbc07eaa6fd32342f044b602951d8bacaebbea7a4efe3c6fafb5054ccab

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://directorycart.com/upload/

http://tierzahnarzt.at/upload/

http://streetofcards.com/upload/

http://ycdfzd.com/upload/

http://successcoachceo.com/upload/

http://uhvu.cn/upload/

http://japanarticle.com/upload/

rc4.i32
rc4.i32

Targets

    • Target

      363fece1255b4dd7f688225dbc090e8b.exe

    • Size

      262KB

    • MD5

      363fece1255b4dd7f688225dbc090e8b

    • SHA1

      624e505f3b828e0f27bd8c2d82687def04ea63d9

    • SHA256

      477af70aacb75d845210fbb00fe37d4c6bd22422ed62dc859ebdf1dc93433c3a

    • SHA512

      70db537ae80612b88db8dfcb33d61a1deecd97555c2d150a9e2fdbaa4a6e89ca2600afbc07eaa6fd32342f044b602951d8bacaebbea7a4efe3c6fafb5054ccab

    • ServHelper

      ServHelper is a backdoor written in Delphi and is associated with the hacking group TA505.

    • 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

    • Possible privilege escalation attempt

    • 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

    • Modifies file permissions

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v6

Tasks