Analysis

  • max time kernel
    150s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/12/2022, 14:29

General

  • Target
    file.exe
  • Size 311KB
  • Sample221219-rtj29sfc33
  • SHA256 eeaadb6bda0816a67ce1750b68a4a876a16dc32e3762713924cc8daba44fd000
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Detects Smokeloader packer 6 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Executes dropped EXE 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Checks SCSI registry key(s) 3 TTPs 6 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2420
    • C:\Users\Admin\AppData\Local\Temp\file.exe
      "C:\Users\Admin\AppData\Local\Temp\file.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:4532
  • C:\Users\Admin\AppData\Roaming\aswsubr
    C:\Users\Admin\AppData\Roaming\aswsubr
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4980
    • C:\Users\Admin\AppData\Roaming\aswsubr
      C:\Users\Admin\AppData\Roaming\aswsubr
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:5048

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        aswsubr

        • Path C:\Users\Admin\AppData\Roaming\aswsubr
        • Size 311KB
        • SHA256 eeaadb6bda0816a67ce1750b68a4a876a16dc32e3762713924cc8daba44fd000
        • MD5 SHA1 SHA512 SSDEEP

        aswsubr

        • Path C:\Users\Admin\AppData\Roaming\aswsubr
        • Size 311KB
        • SHA256 eeaadb6bda0816a67ce1750b68a4a876a16dc32e3762713924cc8daba44fd000
        • MD5 SHA1 SHA512 SSDEEP

        aswsubr

        • Path C:\Users\Admin\AppData\Roaming\aswsubr
        • Size 311KB
        • SHA256 eeaadb6bda0816a67ce1750b68a4a876a16dc32e3762713924cc8daba44fd000
        • MD5 SHA1 SHA512 SSDEEP

        memory/388-178-0x00000000022B0000-0x00000000022C0000-memory.dmp

        memory/388-179-0x00000000022B0000-0x00000000022C0000-memory.dmp

        memory/388-194-0x0000000006EA0000-0x0000000006EB0000-memory.dmp

        memory/388-138-0x00000000022B0000-0x00000000022C0000-memory.dmp

        memory/388-139-0x00000000022B0000-0x00000000022C0000-memory.dmp

        memory/388-140-0x00000000022B0000-0x00000000022C0000-memory.dmp

        memory/388-141-0x00000000022B0000-0x00000000022C0000-memory.dmp

        memory/388-142-0x00000000022B0000-0x00000000022C0000-memory.dmp

        memory/388-143-0x00000000022B0000-0x00000000022C0000-memory.dmp

        memory/388-144-0x00000000022B0000-0x00000000022C0000-memory.dmp

        memory/388-145-0x00000000022B0000-0x00000000022C0000-memory.dmp

        memory/388-146-0x00000000022B0000-0x00000000022C0000-memory.dmp

        memory/388-147-0x00000000022B0000-0x00000000022C0000-memory.dmp

        memory/388-148-0x00000000022B0000-0x00000000022C0000-memory.dmp

        memory/388-149-0x00000000022B0000-0x00000000022C0000-memory.dmp

        memory/388-150-0x00000000022B0000-0x00000000022C0000-memory.dmp

        memory/388-151-0x00000000022B0000-0x00000000022C0000-memory.dmp

        memory/388-152-0x00000000022B0000-0x00000000022C0000-memory.dmp

        memory/388-153-0x00000000022B0000-0x00000000022C0000-memory.dmp

        memory/388-154-0x00000000022B0000-0x00000000022C0000-memory.dmp

        memory/388-155-0x0000000006F90000-0x0000000006FA0000-memory.dmp

        memory/388-156-0x0000000006F90000-0x0000000006FA0000-memory.dmp

        memory/388-157-0x0000000006F90000-0x0000000006FA0000-memory.dmp

        memory/388-193-0x0000000006EA0000-0x0000000006EB0000-memory.dmp

        memory/388-192-0x0000000006EA0000-0x0000000006EB0000-memory.dmp

        memory/388-191-0x0000000002560000-0x0000000002570000-memory.dmp

        memory/388-190-0x0000000006EA0000-0x0000000006EB0000-memory.dmp

        memory/388-189-0x0000000006EA0000-0x0000000006EB0000-memory.dmp

        memory/388-188-0x0000000006EA0000-0x0000000006EB0000-memory.dmp

        memory/388-176-0x00000000022B0000-0x00000000022C0000-memory.dmp

        memory/388-187-0x0000000002560000-0x0000000002570000-memory.dmp

        memory/388-167-0x0000000006F90000-0x0000000006FA0000-memory.dmp

        memory/388-186-0x00000000022B0000-0x00000000022C0000-memory.dmp

        memory/388-185-0x00000000022B0000-0x00000000022C0000-memory.dmp

        memory/388-170-0x00000000022B0000-0x00000000022C0000-memory.dmp

        memory/388-171-0x00000000022B0000-0x00000000022C0000-memory.dmp

        memory/388-172-0x00000000022B0000-0x00000000022C0000-memory.dmp

        memory/388-173-0x00000000022B0000-0x00000000022C0000-memory.dmp

        memory/388-174-0x00000000022B0000-0x00000000022C0000-memory.dmp

        memory/388-175-0x00000000022B0000-0x00000000022C0000-memory.dmp

        memory/388-165-0x0000000006F90000-0x0000000006FA0000-memory.dmp

        memory/388-177-0x00000000022B0000-0x00000000022C0000-memory.dmp

        memory/388-184-0x00000000022B0000-0x00000000022C0000-memory.dmp

        memory/388-166-0x0000000006F90000-0x0000000006FA0000-memory.dmp

        memory/388-180-0x00000000022B0000-0x00000000022C0000-memory.dmp

        memory/388-181-0x00000000022B0000-0x00000000022C0000-memory.dmp

        memory/388-182-0x00000000022B0000-0x00000000022C0000-memory.dmp

        memory/388-183-0x00000000022B0000-0x00000000022C0000-memory.dmp

        memory/2420-134-0x0000000000839000-0x000000000084F000-memory.dmp

        memory/2420-135-0x00000000007F0000-0x00000000007F9000-memory.dmp

        memory/4532-136-0x0000000000400000-0x0000000000409000-memory.dmp

        memory/4532-133-0x0000000000400000-0x0000000000409000-memory.dmp

        memory/4532-137-0x0000000000400000-0x0000000000409000-memory.dmp

        memory/4980-164-0x00000000004B8000-0x00000000004CD000-memory.dmp

        memory/4980-160-0x00000000004B8000-0x00000000004CD000-memory.dmp

        memory/5048-169-0x0000000000400000-0x0000000000409000-memory.dmp

        memory/5048-168-0x0000000000400000-0x0000000000409000-memory.dmp