Overview

overview

10

Static

static

356c1b7171...36.exe

windows7-x64

10

356c1b7171...36.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-12-2022 01:16

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General

  • Target

    356c1b7171d6aba40a1dd434d6a4b1ea810847be9b741d23c3be72aef4e1a036.exe

  • Size

    274KB

  • MD5

    9b06106ec7ddfd36fe6092c40dd042d7

  • SHA1

    b966830e4ff4cfb180810f4bf461cbab1c42be61

  • SHA256

    356c1b7171d6aba40a1dd434d6a4b1ea810847be9b741d23c3be72aef4e1a036

  • SHA512

    e48b1d47ac5af6a8602d59083e206113c774b2b06af0a3a21cdebb120f4511c1dcdec801e0352bda1e872c924c99cd8c41316cf45cc8c2cb77c508b7085443ef

  • SSDEEP

    6144:8ZexVJOnbkxGFPKKK4awFYh5wIDcudniiJVS:8clMbaGLa7DcudniiJVS

Score
10/10
smokeloaderbackdoorcollectiondiscoveryspywarestealertrojan

Malware Config

Signatures

  • Detects Smokeloader packer 1 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

    trojanbackdoorsmokeloader
  • Blocklisted process makes network request 3 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
    collection
  • Accesses Microsoft Outlook profiles 1 TTPs 4 IoCs
    collection
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    discovery
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 42 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • 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 23 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 4 IoCs
    adwarespyware
  • Modifies registry class 30 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 39 IoCs
  • Suspicious use of FindShellTrayWindow 10 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\356c1b7171d6aba40a1dd434d6a4b1ea810847be9b741d23c3be72aef4e1a036.exe
    "C:\Users\Admin\AppData\Local\Temp\356c1b7171d6aba40a1dd434d6a4b1ea810847be9b741d23c3be72aef4e1a036.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:2348
  • C:\Users\Admin\AppData\Local\Temp\42C6.exe
    C:\Users\Admin\AppData\Local\Temp\42C6.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:3760
    • 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
      • Accesses Microsoft Outlook accounts
      • Accesses Microsoft Outlook profiles
      • Suspicious use of SetThreadContext
      • Drops file in Program Files directory
      • Checks processor information in registry
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:4936
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\system32\rundll32.exe" "C:\Windows\system32\shell32.dll",#61 17219
        3⤵
        • Modifies registry class
        • Suspicious use of FindShellTrayWindow
        PID:2644
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /End /tn \Microsoft\Windows\Wininet\CacheTask
        3⤵
          PID:2820
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks /Run /tn \Microsoft\Windows\Wininet\CacheTask
          3⤵
            PID:2100
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3760 -s 540
          2⤵
          • Program crash
          PID:4320
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 3760 -ip 3760
        1⤵
          PID:1960
        • C:\Windows\System32\rundll32.exe
          C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
          1⤵
            PID:816

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\42C6.exe
            Filesize

            1.1MB

            MD5

            b959d35bbf5d6f3ce2166e4444e96d3e

            SHA1

            4f0e90d46bc1f199f8de1f7573cc0e9e726266c1

            SHA256

            dc43d22edbbb30a21b8491829c8c1e11d67ec19acaf3b10ae7e5141ec746ec90

            SHA512

            d65b36e95320bf28bfb21b8108d712992153a88dc0874702036911a61d6af49d0bc2b92f9a78c84d45a5e4417e7bb9f4796546c8ac8dc53bfb452a005825f07c

            Download Submit

          • C:\Users\Admin\AppData\Local\Temp\42C6.exe
            Filesize

            1.1MB

            MD5

            b959d35bbf5d6f3ce2166e4444e96d3e

            SHA1

            4f0e90d46bc1f199f8de1f7573cc0e9e726266c1

            SHA256

            dc43d22edbbb30a21b8491829c8c1e11d67ec19acaf3b10ae7e5141ec746ec90

            SHA512

            d65b36e95320bf28bfb21b8108d712992153a88dc0874702036911a61d6af49d0bc2b92f9a78c84d45a5e4417e7bb9f4796546c8ac8dc53bfb452a005825f07c

            Download Submit

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

            768KB

            MD5

            96655ec3277ef2e9ea4b5723f60f5b04

            SHA1

            b29e9005cedc5e0d63981e59b05a12f006bd8640

            SHA256

            36cb491e91dc40d4a24f25944c5dca41195e1e7eb9788028f72e38b08789616d

            SHA512

            cb151e071426cba0ec433b4ff8b173a9e07fc922e2b9d9d9359bcd5367a79e5bb996e8afbbfe4dd11bde1a33724b7f70479ac248762f5c9d17f3e0d7d67c151c

            Download Submit

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

            768KB

            MD5

            96655ec3277ef2e9ea4b5723f60f5b04

            SHA1

            b29e9005cedc5e0d63981e59b05a12f006bd8640

            SHA256

            36cb491e91dc40d4a24f25944c5dca41195e1e7eb9788028f72e38b08789616d

            SHA512

            cb151e071426cba0ec433b4ff8b173a9e07fc922e2b9d9d9359bcd5367a79e5bb996e8afbbfe4dd11bde1a33724b7f70479ac248762f5c9d17f3e0d7d67c151c

            Download Submit

          • memory/2348-134-0x00000000021A0000-0x00000000021A9000-memory.dmp

            Filesize

            36KB

            Download

          • memory/2348-135-0x0000000000400000-0x0000000000463000-memory.dmp

            Filesize

            396KB

            Download

          • memory/2348-136-0x0000000000400000-0x0000000000463000-memory.dmp

            Filesize

            396KB

            Download

          • memory/2348-133-0x0000000000560000-0x0000000000660000-memory.dmp

            Filesize

            1024KB

            Download

          • memory/2644-158-0x0000027538C60000-0x0000027538F05000-memory.dmp

            Filesize

            2.6MB

            Download

          • memory/2644-157-0x0000000000970000-0x0000000000C03000-memory.dmp

            Filesize

            2.6MB

            Download

          • memory/2644-155-0x000002753A6B0000-0x000002753A7F0000-memory.dmp

            Filesize

            1.2MB

            Download

          • memory/2644-156-0x000002753A6B0000-0x000002753A7F0000-memory.dmp

            Filesize

            1.2MB

            Download

          • memory/3760-143-0x00000000021B4000-0x0000000002293000-memory.dmp

            Filesize

            892KB

            Download

          • memory/3760-144-0x0000000002310000-0x0000000002430000-memory.dmp

            Filesize

            1.1MB

            Download

          • memory/3760-145-0x0000000000400000-0x0000000000531000-memory.dmp

            Filesize

            1.2MB

            Download

          • memory/4936-152-0x0000000004E80000-0x0000000004FC0000-memory.dmp

            Filesize

            1.2MB

            Download

          • memory/4936-153-0x0000000004E80000-0x0000000004FC0000-memory.dmp

            Filesize

            1.2MB

            Download

          • memory/4936-151-0x0000000004E80000-0x0000000004FC0000-memory.dmp

            Filesize

            1.2MB

            Download

          • memory/4936-150-0x0000000004E80000-0x0000000004FC0000-memory.dmp

            Filesize

            1.2MB

            Download

          • memory/4936-148-0x0000000004E80000-0x0000000004FC0000-memory.dmp

            Filesize

            1.2MB

            Download

          • memory/4936-149-0x0000000004E80000-0x0000000004FC0000-memory.dmp

            Filesize

            1.2MB

            Download

          • memory/4936-159-0x0000000005400000-0x0000000005F62000-memory.dmp

            Filesize

            11.4MB

            Download

          • memory/4936-147-0x0000000005400000-0x0000000005F62000-memory.dmp

            Filesize

            11.4MB

            Download

          • memory/4936-146-0x0000000005400000-0x0000000005F62000-memory.dmp

            Filesize

            11.4MB

            Download