Analysis

  • max time kernel
    151s
  • max time network
    149s
  • platform
    windows10-1703_x64
  • resource
    win10-20220901-en
  • resource tags

    arch:x64arch:x86image:win10-20220901-enlocale:en-usos:windows10-1703-x64system
  • submitted
    06-12-2022 03:49

General

  • Target

    8f0652222afead81b7dd875737b2f6a9b2074d376a3cbab0fe0ccee6bade3255.exe

  • Size

    273KB

  • MD5

    6b5a9f6f8eb8a86bf9b662adbfa29779

  • SHA1

    e82ada0fe40687bb9b9fa43bb02ee9b8981645c6

  • SHA256

    8f0652222afead81b7dd875737b2f6a9b2074d376a3cbab0fe0ccee6bade3255

  • SHA512

    2a983e3b5a866b3dd6d702e0f874c2f0b66ef6ea538ddd0d010facceed5f95689afffbb765ef676de4242b2a1d1ee16fc24bddc50799cfab0e4ddaa56222b524

  • SSDEEP

    3072:ZZXVmhYLlPATgp6x3WR5yk8O+2ll6cXaz58QirdiVRvJTcp4lURsfYgV2qs64j:Z9XFp6xnVOzllNXaiQihIDcCGRAVS

Malware Config

Signatures

  • Detects Smokeloader packer 1 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Blocklisted process makes network request 2 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 24 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies Internet Explorer settings 1 TTPs 4 IoCs
  • Modifies registry class 36 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 26 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8f0652222afead81b7dd875737b2f6a9b2074d376a3cbab0fe0ccee6bade3255.exe
    "C:\Users\Admin\AppData\Local\Temp\8f0652222afead81b7dd875737b2f6a9b2074d376a3cbab0fe0ccee6bade3255.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:4760
  • C:\Users\Admin\AppData\Local\Temp\445C.exe
    C:\Users\Admin\AppData\Local\Temp\445C.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:4856
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\system32\rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\Eshwsfeuryqqffi.tmp",Qiysidaatietut
      2⤵
      • Blocklisted process makes network request
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Checks processor information in registry
      • Suspicious use of WriteProcessMemory
      PID:4200
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\system32\rundll32.exe" "C:\Windows\system32\shell32.dll",#61 17207
        3⤵
        • Modifies registry class
        • Suspicious use of FindShellTrayWindow
        PID:1488
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:2788

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Defense Evasion

    Modify Registry

    1
    T1112

    Discovery

    System Information Discovery

    3
    T1082

    Query Registry

    2
    T1012

    Peripheral Device Discovery

    1
    T1120

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\445C.exe
      Filesize

      1.1MB

      MD5

      c9d86b8af2b6aa83f5ab8698b4dac416

      SHA1

      c0f65732321e8512b4b7096ba827a2920106968e

      SHA256

      209623f82b569fb476fdef4b1b84b253fd7b224ec5161867e134783a1ae30740

      SHA512

      eeca416617d692d788fba0042a1bc1477a5783d88f6621f159a49644ac718faac7392845c226ad43aed2310c73445bcd7765874579d3d17acdaa36bfdc0a9a15

    • C:\Users\Admin\AppData\Local\Temp\445C.exe
      Filesize

      1.1MB

      MD5

      c9d86b8af2b6aa83f5ab8698b4dac416

      SHA1

      c0f65732321e8512b4b7096ba827a2920106968e

      SHA256

      209623f82b569fb476fdef4b1b84b253fd7b224ec5161867e134783a1ae30740

      SHA512

      eeca416617d692d788fba0042a1bc1477a5783d88f6621f159a49644ac718faac7392845c226ad43aed2310c73445bcd7765874579d3d17acdaa36bfdc0a9a15

    • C:\Users\Admin\AppData\Local\Temp\Eshwsfeuryqqffi.tmp
      Filesize

      768KB

      MD5

      96655ec3277ef2e9ea4b5723f60f5b04

      SHA1

      b29e9005cedc5e0d63981e59b05a12f006bd8640

      SHA256

      36cb491e91dc40d4a24f25944c5dca41195e1e7eb9788028f72e38b08789616d

      SHA512

      cb151e071426cba0ec433b4ff8b173a9e07fc922e2b9d9d9359bcd5367a79e5bb996e8afbbfe4dd11bde1a33724b7f70479ac248762f5c9d17f3e0d7d67c151c

    • \Users\Admin\AppData\Local\Temp\Eshwsfeuryqqffi.tmp
      Filesize

      768KB

      MD5

      96655ec3277ef2e9ea4b5723f60f5b04

      SHA1

      b29e9005cedc5e0d63981e59b05a12f006bd8640

      SHA256

      36cb491e91dc40d4a24f25944c5dca41195e1e7eb9788028f72e38b08789616d

      SHA512

      cb151e071426cba0ec433b4ff8b173a9e07fc922e2b9d9d9359bcd5367a79e5bb996e8afbbfe4dd11bde1a33724b7f70479ac248762f5c9d17f3e0d7d67c151c

    • memory/1488-392-0x00000216E0D00000-0x00000216E0FA5000-memory.dmp
      Filesize

      2.6MB

    • memory/1488-391-0x0000000000A70000-0x0000000000D03000-memory.dmp
      Filesize

      2.6MB

    • memory/1488-385-0x00007FF6AAC55FD0-mapping.dmp
    • memory/1784-180-0x0000000000F40000-0x0000000000F50000-memory.dmp
      Filesize

      64KB

    • memory/1784-187-0x00000000028B0000-0x00000000028C0000-memory.dmp
      Filesize

      64KB

    • memory/1784-364-0x00000000028D0000-0x00000000028E0000-memory.dmp
      Filesize

      64KB

    • memory/1784-354-0x00000000028D0000-0x00000000028E0000-memory.dmp
      Filesize

      64KB

    • memory/1784-351-0x00000000028D0000-0x00000000028E0000-memory.dmp
      Filesize

      64KB

    • memory/1784-353-0x00000000028D0000-0x00000000028E0000-memory.dmp
      Filesize

      64KB

    • memory/1784-352-0x00000000028D0000-0x00000000028E0000-memory.dmp
      Filesize

      64KB

    • memory/1784-350-0x0000000000F40000-0x0000000000F50000-memory.dmp
      Filesize

      64KB

    • memory/1784-330-0x00000000028D0000-0x00000000028E0000-memory.dmp
      Filesize

      64KB

    • memory/1784-328-0x0000000000EC0000-0x0000000000ED0000-memory.dmp
      Filesize

      64KB

    • memory/1784-329-0x0000000000F40000-0x0000000000F50000-memory.dmp
      Filesize

      64KB

    • memory/1784-320-0x00000000028B0000-0x00000000028C0000-memory.dmp
      Filesize

      64KB

    • memory/1784-319-0x00000000028B0000-0x00000000028C0000-memory.dmp
      Filesize

      64KB

    • memory/1784-366-0x00000000028D0000-0x00000000028E0000-memory.dmp
      Filesize

      64KB

    • memory/1784-174-0x0000000000F40000-0x0000000000F50000-memory.dmp
      Filesize

      64KB

    • memory/1784-172-0x0000000000F40000-0x0000000000F50000-memory.dmp
      Filesize

      64KB

    • memory/1784-169-0x0000000000F40000-0x0000000000F50000-memory.dmp
      Filesize

      64KB

    • memory/1784-168-0x0000000000F40000-0x0000000000F50000-memory.dmp
      Filesize

      64KB

    • memory/1784-188-0x00000000028B0000-0x00000000028C0000-memory.dmp
      Filesize

      64KB

    • memory/1784-365-0x00000000028D0000-0x00000000028E0000-memory.dmp
      Filesize

      64KB

    • memory/1784-186-0x0000000000F80000-0x0000000000F90000-memory.dmp
      Filesize

      64KB

    • memory/1784-185-0x0000000000F40000-0x0000000000F50000-memory.dmp
      Filesize

      64KB

    • memory/1784-184-0x0000000000EC0000-0x0000000000ED0000-memory.dmp
      Filesize

      64KB

    • memory/1784-183-0x0000000000F40000-0x0000000000F50000-memory.dmp
      Filesize

      64KB

    • memory/1784-181-0x0000000000F40000-0x0000000000F50000-memory.dmp
      Filesize

      64KB

    • memory/1784-182-0x0000000000F40000-0x0000000000F50000-memory.dmp
      Filesize

      64KB

    • memory/1784-175-0x0000000000F40000-0x0000000000F50000-memory.dmp
      Filesize

      64KB

    • memory/1784-177-0x0000000000F40000-0x0000000000F50000-memory.dmp
      Filesize

      64KB

    • memory/1784-176-0x0000000000F40000-0x0000000000F50000-memory.dmp
      Filesize

      64KB

    • memory/1784-173-0x0000000000F40000-0x0000000000F50000-memory.dmp
      Filesize

      64KB

    • memory/1784-159-0x0000000000EC0000-0x0000000000ED0000-memory.dmp
      Filesize

      64KB

    • memory/1784-161-0x0000000000F40000-0x0000000000F50000-memory.dmp
      Filesize

      64KB

    • memory/1784-164-0x0000000000F40000-0x0000000000F50000-memory.dmp
      Filesize

      64KB

    • memory/1784-166-0x0000000000F40000-0x0000000000F50000-memory.dmp
      Filesize

      64KB

    • memory/1784-167-0x0000000000F40000-0x0000000000F50000-memory.dmp
      Filesize

      64KB

    • memory/4200-393-0x0000000006F30000-0x0000000007A92000-memory.dmp
      Filesize

      11.4MB

    • memory/4200-390-0x0000000007CE9000-0x0000000007CEB000-memory.dmp
      Filesize

      8KB

    • memory/4200-236-0x0000000000000000-mapping.dmp
    • memory/4200-376-0x0000000006F30000-0x0000000007A92000-memory.dmp
      Filesize

      11.4MB

    • memory/4760-145-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4760-125-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4760-146-0x0000000000726000-0x0000000000736000-memory.dmp
      Filesize

      64KB

    • memory/4760-150-0x0000000000400000-0x0000000000462000-memory.dmp
      Filesize

      392KB

    • memory/4760-155-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4760-154-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4760-152-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4760-153-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4760-151-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4760-148-0x00000000006E0000-0x00000000006E9000-memory.dmp
      Filesize

      36KB

    • memory/4760-149-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4760-147-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4760-120-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4760-144-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4760-156-0x0000000000400000-0x0000000000462000-memory.dmp
      Filesize

      392KB

    • memory/4760-121-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4760-122-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4760-123-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4760-124-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4760-139-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4760-126-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4760-127-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4760-128-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4760-129-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4760-143-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4760-130-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4760-131-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4760-132-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4760-133-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4760-134-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4760-135-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4760-136-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4760-137-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4760-142-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4760-138-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4760-141-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4760-140-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4856-191-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4856-240-0x0000000000400000-0x0000000000531000-memory.dmp
      Filesize

      1.2MB

    • memory/4856-237-0x0000000000400000-0x0000000000531000-memory.dmp
      Filesize

      1.2MB

    • memory/4856-235-0x00000000022C0000-0x00000000023E0000-memory.dmp
      Filesize

      1.1MB

    • memory/4856-234-0x00000000021D0000-0x00000000022BB000-memory.dmp
      Filesize

      940KB

    • memory/4856-205-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4856-197-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4856-204-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4856-203-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4856-202-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4856-200-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4856-201-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4856-199-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4856-196-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4856-195-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4856-189-0x0000000000000000-mapping.dmp
    • memory/4856-194-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4856-193-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB

    • memory/4856-192-0x0000000077850000-0x00000000779DE000-memory.dmp
      Filesize

      1.6MB