Analysis

  • max time kernel
    153s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    24/06/2021, 09:22

General

  • Target
    78c7b0f66663fb9fffb5c008158152cc.exe
  • Size 346KB
  • Sample210624-4kca63xpaa
  • SHA256 3d4bdebbec823f327133e07e846db7b30ad625215cc273d9af272c5fde02fb0c
  • MD5 SHA1 SHA512

Malware Config

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

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Deletes itself 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\78c7b0f66663fb9fffb5c008158152cc.exe
    "C:\Users\Admin\AppData\Local\Temp\78c7b0f66663fb9fffb5c008158152cc.exe"
    1⤵
    • Loads dropped DLL
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:1080

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/1080-60-0x0000000075D11000-0x0000000075D13000-memory.dmp

        memory/1080-62-0x00000000003A0000-0x00000000003A9000-memory.dmp

        memory/1080-63-0x0000000000400000-0x00000000008F5000-memory.dmp

        memory/1220-64-0x0000000003AF0000-0x0000000003B06000-memory.dmp