Overview

overview

10

Static

static

file.exe

windows7-x64

10

file.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    153s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/12/2022, 23:30

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General

  • Target

    file.exe

  • Size

    385KB

  • MD5

    ae25963365dc2c93c15700810dfa9e44

  • SHA1

    c32f51e56f4346d6059e7389cf60c64d772c9e75

  • SHA256

    7325d1987f354ada2c46acea0b6f15c7e9554ea60b684014b9d9faf07be99277

  • SHA512

    a6b095873188b47721e2587f31f38c56374837189d43d2f3076146ba00e70dd0226e978c3b1eff5cacdae891a6e28de12acd8641b8d8ec1d5dd727d4e3412d29

  • SSDEEP

    6144:q+tFEZpK/L1wgCtRMC+qf5PuDcC8frnq7mZvfzGjmDpWcoBlC0FMAsaVe:qgyZaBwgMhEp8fTq7mYjFcWC65s3

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 2 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
  • 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 25 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 43 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\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:5060
  • C:\Users\Admin\AppData\Local\Temp\9E63.exe
    C:\Users\Admin\AppData\Local\Temp\9E63.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:788
    • 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
      • Checks processor information in registry
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:212
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\system32\rundll32.exe" "C:\Windows\system32\shell32.dll",#61 17206
        3⤵
        • Modifies registry class
        • Suspicious use of FindShellTrayWindow
        PID:3548
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /End /tn \Microsoft\Windows\Wininet\CacheTask
        3⤵
          PID:1252
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks /Run /tn \Microsoft\Windows\Wininet\CacheTask
          3⤵
            PID:2364
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 788 -s 556
          2⤵
          • Program crash
          PID:3624
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 788 -ip 788
        1⤵
          PID:220
        • C:\Windows\System32\rundll32.exe
          C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
          1⤵
            PID:3980

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\9E63.exe
            Filesize

            1.2MB

            MD5

            6e663f1ee01d0cf78535f38440a491d3

            SHA1

            23c1bc953b3c98c44ec7b7d21ea31217df1c449c

            SHA256

            0ea785fdc9cf46e2ce5331487242855308f70e468e41327255c085cdae18be40

            SHA512

            37039b5d7031f409374e05249410c675e6e7599f20219844806e510b416205b443ff7e33d43a50bf51b12d3aafc4976688e0e14b6dcfb54b2ad878c0824dce5c

            Download Submit

          • C:\Users\Admin\AppData\Local\Temp\9E63.exe
            Filesize

            1.2MB

            MD5

            6e663f1ee01d0cf78535f38440a491d3

            SHA1

            23c1bc953b3c98c44ec7b7d21ea31217df1c449c

            SHA256

            0ea785fdc9cf46e2ce5331487242855308f70e468e41327255c085cdae18be40

            SHA512

            37039b5d7031f409374e05249410c675e6e7599f20219844806e510b416205b443ff7e33d43a50bf51b12d3aafc4976688e0e14b6dcfb54b2ad878c0824dce5c

            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/212-153-0x0000000004CD0000-0x0000000004E10000-memory.dmp

            Filesize

            1.2MB

            Download

          • memory/212-149-0x0000000004CD0000-0x0000000004E10000-memory.dmp

            Filesize

            1.2MB

            Download

          • memory/212-160-0x0000000005240000-0x0000000005DA2000-memory.dmp

            Filesize

            11.4MB

            Download

          • memory/212-154-0x0000000004CD0000-0x0000000004E10000-memory.dmp

            Filesize

            1.2MB

            Download

          • memory/212-152-0x0000000004CD0000-0x0000000004E10000-memory.dmp

            Filesize

            1.2MB

            Download

          • memory/212-151-0x0000000004CD0000-0x0000000004E10000-memory.dmp

            Filesize

            1.2MB

            Download

          • memory/212-150-0x0000000004CD0000-0x0000000004E10000-memory.dmp

            Filesize

            1.2MB

            Download

          • memory/212-148-0x0000000005240000-0x0000000005DA2000-memory.dmp

            Filesize

            11.4MB

            Download

          • memory/212-147-0x0000000005240000-0x0000000005DA2000-memory.dmp

            Filesize

            11.4MB

            Download

          • memory/788-146-0x0000000000400000-0x0000000000530000-memory.dmp

            Filesize

            1.2MB

            Download

          • memory/788-142-0x0000000000400000-0x0000000000530000-memory.dmp

            Filesize

            1.2MB

            Download

          • memory/788-141-0x0000000002340000-0x0000000002460000-memory.dmp

            Filesize

            1.1MB

            Download

          • memory/788-140-0x00000000007E4000-0x00000000008C2000-memory.dmp

            Filesize

            888KB

            Download

          • memory/3548-158-0x0000000000460000-0x00000000006F3000-memory.dmp

            Filesize

            2.6MB

            Download

          • memory/3548-156-0x000001F5291D0000-0x000001F529310000-memory.dmp

            Filesize

            1.2MB

            Download

          • memory/3548-157-0x000001F5291D0000-0x000001F529310000-memory.dmp

            Filesize

            1.2MB

            Download

          • memory/3548-159-0x000001F527780000-0x000001F527A25000-memory.dmp

            Filesize

            2.6MB

            Download

          • memory/5060-135-0x0000000000533000-0x0000000000549000-memory.dmp

            Filesize

            88KB

            Download

          • memory/5060-132-0x0000000000533000-0x0000000000549000-memory.dmp

            Filesize

            88KB

            Download

          • memory/5060-136-0x0000000000400000-0x0000000000466000-memory.dmp

            Filesize

            408KB

            Download

          • memory/5060-134-0x0000000000400000-0x0000000000466000-memory.dmp

            Filesize

            408KB

            Download

          • memory/5060-133-0x00000000001F0000-0x00000000001F9000-memory.dmp

            Filesize

            36KB

            Download