Overview

overview

10

Static

static

D75F766038...BA.exe

windows7_x64

10

D75F766038...BA.exe

windows10_x64

Analysis

  • max time kernel
    150s
  • max time network
    196s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    27-05-2021 18:51

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General

  • Target

    D75F766038942D5AD9827FE9F87151BA.exe

  • Size

    3.1MB

  • MD5

    d75f766038942d5ad9827fe9f87151ba

  • SHA1

    751453336b5ec922c75f0a350f4c79a48768b72e

  • SHA256

    542bb14d2ceec30c45ece43b1d282076ed64872c06b86e7d9fc660b054812dfb

  • SHA512

    aaf2b869d0205dedda34a15cd5fa800f940eaa79707de78a3ba8560a329951e9bbb362067c6f54d0f0a641d1d8465dced42d1119dbf3b06c27c6815288c3ad30

Score
10/10
smokeloaderbackdoorevasiontrojanupxvmprotect

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://20xbtc.com/upload/

http://yzsnw.com/upload/

http://kaledebiyat.com/upload/

http://expertizizmir.com/upload/

http://dedkndy.com/upload/

http://theuncu.com/upload/
rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

    trojanbackdoorsmokeloader
  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Executes dropped EXE 9 IoCs
  • UPX packed file 7 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

    upx
  • VMProtect packed file 11 IoCs

    Detects executables packed with VMProtect commercial packer.

    vmprotect
  • Loads dropped DLL 39 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
    evasiontrojan
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in System32 directory 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • autoit_exe 6 IoCs

    AutoIT scripts compiled to PE executables.

  • 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.

  • Modifies Internet Explorer settings 1 TTPs 32 IoCs
    adwarespyware
  • Modifies registry class 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of FindShellTrayWindow 16 IoCs
  • Suspicious use of SendNotifyMessage 12 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 60 IoCs

Processes

  • C:\Windows\system32\services.exe
    C:\Windows\system32\services.exe
    1⤵
      PID:464
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k netsvcs
        2⤵
        • Suspicious use of NtCreateUserProcessOtherParentProcess
        • Drops file in System32 directory
        • Suspicious use of SetThreadContext
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:888
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k SystemNetworkService
        2⤵
        • Modifies registry class
        PID:2236
    • C:\Users\Admin\AppData\Local\Temp\D75F766038942D5AD9827FE9F87151BA.exe
      "C:\Users\Admin\AppData\Local\Temp\D75F766038942D5AD9827FE9F87151BA.exe"
      1⤵
      • Loads dropped DLL
      • Checks whether UAC is enabled
      • Suspicious use of WriteProcessMemory
      PID:1084
      • C:\Users\Admin\AppData\Local\Temp\jg3_3uag.exe
        "C:\Users\Admin\AppData\Local\Temp\jg3_3uag.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:1700
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1700 -s 200
          3⤵
          • Loads dropped DLL
          • Program crash
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          PID:1304
      • C:\Users\Admin\AppData\Local\Temp\KRSetp.exe
        "C:\Users\Admin\AppData\Local\Temp\KRSetp.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:1828
      • C:\Users\Admin\AppData\Local\Temp\Files.exe
        "C:\Users\Admin\AppData\Local\Temp\Files.exe"
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Checks whether UAC is enabled
        • Suspicious use of WriteProcessMemory
        PID:1776
        • C:\Users\Admin\AppData\Local\Temp\RarSFX0\File.exe
          "C:\Users\Admin\AppData\Local\Temp\RarSFX0\File.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          PID:752
      • C:\Users\Admin\AppData\Local\Temp\wf-game.exe
        "C:\Users\Admin\AppData\Local\Temp\wf-game.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:1676
        • C:\Windows\SysWOW64\rUNdlL32.eXe
          "C:\Windows\system32\rUNdlL32.eXe" "C:\Users\Admin\AppData\Local\Temp\install.dll",getname
          3⤵
          • Loads dropped DLL
          • Modifies registry class
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2176
      • C:\Users\Admin\AppData\Local\Temp\pzyh.exe
        "C:\Users\Admin\AppData\Local\Temp\pzyh.exe"
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:864
        • C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe
          C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe /scookiestxt C:\Users\Admin\AppData\Local\Temp\fj4ghga23_fsa.txt
          3⤵
          • Executes dropped EXE
          PID:2384
        • C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe
          C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe /scookiestxt C:\Users\Admin\AppData\Local\Temp\fj4ghga23_fsa.txt
          3⤵
          • Executes dropped EXE
          PID:2664
      • C:\Users\Admin\AppData\Local\Temp\pub2.exe
        "C:\Users\Admin\AppData\Local\Temp\pub2.exe"
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Checks SCSI registry key(s)
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        PID:1588
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1352
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1352 CREDAT:275457 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:288
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1352 CREDAT:275466 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:2436

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/888-135-0x0000000000260000-0x00000000002AB000-memory.dmp

      Filesize

      300KB

      Download

    • memory/888-136-0x0000000000D80000-0x0000000000DF0000-memory.dmp

      Filesize

      448KB

      Download

    • memory/1084-59-0x0000000075AF1000-0x0000000075AF3000-memory.dmp

      Filesize

      8KB

      Download

    • memory/1212-143-0x0000000003840000-0x0000000003856000-memory.dmp

      Filesize

      88KB

      Download

    • memory/1304-87-0x0000000000260000-0x0000000000261000-memory.dmp

      Filesize

      4KB

      Download

    • memory/1588-142-0x0000000000400000-0x0000000000450000-memory.dmp

      Filesize

      320KB

      Download

    • memory/1588-141-0x0000000000220000-0x0000000000229000-memory.dmp

      Filesize

      36KB

      Download

    • memory/1700-76-0x0000000000400000-0x0000000000661000-memory.dmp

      Filesize

      2.4MB

      Download

    • memory/1828-77-0x00000000004D0000-0x00000000004EE000-memory.dmp

      Filesize

      120KB

      Download

    • memory/1828-83-0x000000001AF50000-0x000000001AF52000-memory.dmp

      Filesize

      8KB

      Download

    • memory/1828-74-0x0000000000920000-0x0000000000921000-memory.dmp

      Filesize

      4KB

      Download

    • memory/2176-134-0x0000000001E70000-0x0000000001ECC000-memory.dmp

      Filesize

      368KB

      Download

    • memory/2176-133-0x0000000001D60000-0x0000000001E61000-memory.dmp

      Filesize

      1.0MB

      Download

    • memory/2176-132-0x0000000010000000-0x0000000010002000-memory.dmp

      Filesize

      8KB

      Download

    • memory/2236-138-0x0000000000500000-0x0000000000570000-memory.dmp

      Filesize

      448KB

      Download