Analysis

  • max time kernel
    153s
  • max time network
    127s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    09/10/2021, 15:13

General

  • Target
    23a9a06b9f64280dfa83bedbfd93c5fe.exe
  • Size 322KB
  • Sample211009-slq2aafcb6
  • SHA256 45e587240e1a8ca96b1fdbe9f3529448b9142de289be5ecbcff948ab27b1ea09
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • smokeloader

Version
  • 2020

C2
  • http://fazanaharahe10.top/

  • http://xandelissane20.top/

  • http://ustiassosale30.top/

  • http://cytheriata40.top/

  • http://ggiergionard50.top/

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\23a9a06b9f64280dfa83bedbfd93c5fe.exe
    "C:\Users\Admin\AppData\Local\Temp\23a9a06b9f64280dfa83bedbfd93c5fe.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1828
    • C:\Users\Admin\AppData\Local\Temp\23a9a06b9f64280dfa83bedbfd93c5fe.exe
      "C:\Users\Admin\AppData\Local\Temp\23a9a06b9f64280dfa83bedbfd93c5fe.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:3772

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/1828-115-0x00000000018C9000-0x00000000018D9000-memory.dmp

        memory/1828-116-0x0000000001720000-0x000000000186A000-memory.dmp

        memory/2972-119-0x00000000011A0000-0x00000000011B6000-memory.dmp

        memory/3772-117-0x0000000000400000-0x0000000000409000-memory.dmp