Analysis

  • max time kernel
    153s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    31/01/2022, 07:33

General

  • Target
    cfcd19e386be1f81fa2311cf6d9d57e5.exe
  • Size 233KB
  • Sample220131-jdjgsshdc8
  • SHA256 42cc2a8e97add8162a113cefb4399f16806416acf5ba01b6008009f292d2c4bb
  • 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.

  • 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 FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cfcd19e386be1f81fa2311cf6d9d57e5.exe
    "C:\Users\Admin\AppData\Local\Temp\cfcd19e386be1f81fa2311cf6d9d57e5.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1504
    • C:\Users\Admin\AppData\Local\Temp\cfcd19e386be1f81fa2311cf6d9d57e5.exe
      "C:\Users\Admin\AppData\Local\Temp\cfcd19e386be1f81fa2311cf6d9d57e5.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:1608

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1224-59-0x0000000002B50000-0x0000000002B66000-memory.dmp

        memory/1504-55-0x0000000000220000-0x0000000000228000-memory.dmp

        memory/1504-57-0x0000000000240000-0x0000000000249000-memory.dmp

        memory/1608-56-0x0000000076451000-0x0000000076453000-memory.dmp

        memory/1608-54-0x0000000000400000-0x0000000000409000-memory.dmp

        memory/1608-58-0x0000000000400000-0x0000000000409000-memory.dmp