Analysis

  • max time kernel
    153s
  • max time network
    126s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    24/01/2022, 07:01

General

  • Target
    3b8d7ff1cc173d9a3b421e64b7ce4e93.exe
  • Size 249KB
  • Sample220124-hs782adfcn
  • SHA256 02b9159f39f4912af2fa68281a500161302f34cd00ce7dfd22861728e55f8956
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • smokeloader

Version
  • 2020

C2
  • http://host-data-coin-11.com/

  • http://file-coin-host-12.com/

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • suricata: ET MALWARE Sharik/Smoke CnC Beacon 11

    suricata: ET MALWARE Sharik/Smoke CnC Beacon 11

  • Deletes itself 1 IoCs
  • Suspicious use of SetThreadContext 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 WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3b8d7ff1cc173d9a3b421e64b7ce4e93.exe
    "C:\Users\Admin\AppData\Local\Temp\3b8d7ff1cc173d9a3b421e64b7ce4e93.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3912
    • C:\Users\Admin\AppData\Local\Temp\3b8d7ff1cc173d9a3b421e64b7ce4e93.exe
      "C:\Users\Admin\AppData\Local\Temp\3b8d7ff1cc173d9a3b421e64b7ce4e93.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:580

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/580-115-0x0000000000400000-0x0000000000409000-memory.dmp

        memory/580-117-0x0000000000400000-0x0000000000409000-memory.dmp

        memory/3056-118-0x0000000000610000-0x0000000000626000-memory.dmp

        memory/3912-116-0x0000000000030000-0x0000000000038000-memory.dmp