Analysis

  • max time kernel
    159s
  • max time network
    129s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    28-01-2022 16:39

General

  • Target

    4aa172db146bd1a8e35c90ff812c574d9a639d7ffc093c2ba53ab4146c252f2f.exe

  • Size

    353KB

  • MD5

    2a4c49e945f90e73cce06d8aec8a0e28

  • SHA1

    63e6e1d365489499711998c0ddcc3d3136b2ac20

  • SHA256

    4aa172db146bd1a8e35c90ff812c574d9a639d7ffc093c2ba53ab4146c252f2f

  • SHA512

    130f0b86e7d22b97b3f6670f67caf58bc4f2c70eb5d85c4db20ded68ef34b345c591e59d4a00d63ecc314ade7e472dcaa8bd59603788d46107b06d5091a2993c

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.

  • 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\4aa172db146bd1a8e35c90ff812c574d9a639d7ffc093c2ba53ab4146c252f2f.exe
    "C:\Users\Admin\AppData\Local\Temp\4aa172db146bd1a8e35c90ff812c574d9a639d7ffc093c2ba53ab4146c252f2f.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3240
    • C:\Users\Admin\AppData\Local\Temp\4aa172db146bd1a8e35c90ff812c574d9a639d7ffc093c2ba53ab4146c252f2f.exe
      "C:\Users\Admin\AppData\Local\Temp\4aa172db146bd1a8e35c90ff812c574d9a639d7ffc093c2ba53ab4146c252f2f.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:1344

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1344-119-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/1344-120-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2472-121-0x0000000000F50000-0x0000000000F66000-memory.dmp

    Filesize

    88KB

  • memory/3240-118-0x0000000000810000-0x0000000000839000-memory.dmp

    Filesize

    164KB