Overview

overview

10

Static

static

28A5B3BC18...82.exe

windows7_x64

10

28A5B3BC18...82.exe

windows10_x64

Analysis

  • max time kernel
    150s
  • max time network
    192s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    31-05-2021 19:04

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General

  • Target

    28A5B3BC1801EA6443643F1AD8710A82.exe

  • Size

    3.1MB

  • MD5

    28a5b3bc1801ea6443643f1ad8710a82

  • SHA1

    8be30d706d5de45bfdba5ff38caba3e9e982fa1b

  • SHA256

    e55e95de03dff2a35cb8304d855c944a5309c56ff8d369af0a542e600faa6808

  • SHA512

    8c7ed424f54f0f05ab03c99a47db60c6a2c3a29f2e251f62f16c1dea3861571ac5ecc5b55612b9fa69230babe35d7ff779aae65e19d34a0558e459c4e5bed24d

Score
10/10
plugxsmokeloaderbackdoorevasiontrojanupxvmprotect

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

  • PlugX

    PlugX is a RAT (Remote Access Trojan) that has been around since 2008.

    trojanplugx
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

    trojanbackdoorsmokeloader
  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Executes dropped EXE 10 IoCs
  • UPX packed file 6 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 42 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 31 IoCs
    adwarespyware
  • Modifies registry class 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of FindShellTrayWindow 9 IoCs
  • Suspicious use of SendNotifyMessage 8 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs
  • Suspicious use of WriteProcessMemory 64 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:876
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k SystemNetworkService
        2⤵
        • Modifies registry class
        PID:2240
    • C:\Users\Admin\AppData\Local\Temp\28A5B3BC1801EA6443643F1AD8710A82.exe
      "C:\Users\Admin\AppData\Local\Temp\28A5B3BC1801EA6443643F1AD8710A82.exe"
      1⤵
      • Loads dropped DLL
      • Checks whether UAC is enabled
      • Suspicious use of WriteProcessMemory
      PID:1992
      • C:\Users\Admin\AppData\Local\Temp\jg3_3uag.exe
        "C:\Users\Admin\AppData\Local\Temp\jg3_3uag.exe"
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1016
        • C:\Users\Admin\AppData\Local\Temp\RarSFX0\jg3_3uag.exe
          "C:\Users\Admin\AppData\Local\Temp\RarSFX0\jg3_3uag.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:1300
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 1300 -s 192
            4⤵
            • Loads dropped DLL
            • Program crash
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            PID:1288
      • 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:1752
      • 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:1888
        • C:\Users\Admin\AppData\Local\Temp\RarSFX1\File.exe
          "C:\Users\Admin\AppData\Local\Temp\RarSFX1\File.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          PID:1604
      • C:\Users\Admin\AppData\Local\Temp\Folder.exe
        "C:\Users\Admin\AppData\Local\Temp\Folder.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:1044
        • C:\Windows\SysWOW64\rUNdlL32.eXe
          "C:\Windows\system32\rUNdlL32.eXe" "C:\Users\Admin\AppData\Local\Temp\install.dll",setpwd
          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:432
        • 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:2380
        • 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:2660
      • 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:1592
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1204
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1204 CREDAT:275457 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:748
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1204 CREDAT:472077 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:2484

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/748-96-0x0000000000880000-0x0000000000882000-memory.dmp

      Filesize

      8KB

      Download

    • memory/876-145-0x00000000010A0000-0x0000000001110000-memory.dmp

      Filesize

      448KB

      Download

    • memory/876-144-0x00000000007F0000-0x000000000083B000-memory.dmp

      Filesize

      300KB

      Download

    • memory/1208-152-0x0000000002D20000-0x0000000002D36000-memory.dmp

      Filesize

      88KB

      Download

    • memory/1288-97-0x0000000000670000-0x0000000000671000-memory.dmp

      Filesize

      4KB

      Download

    • memory/1300-84-0x0000000000400000-0x00000000005DE000-memory.dmp

      Filesize

      1.9MB

      Download

    • memory/1592-150-0x0000000000220000-0x0000000000229000-memory.dmp

      Filesize

      36KB

      Download

    • memory/1592-151-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

      Download

    • memory/1752-91-0x0000000000260000-0x0000000000280000-memory.dmp

      Filesize

      128KB

      Download

    • memory/1752-81-0x00000000002A0000-0x00000000002A1000-memory.dmp

      Filesize

      4KB

      Download

    • memory/1752-86-0x000000001AF40000-0x000000001AF42000-memory.dmp

      Filesize

      8KB

      Download

    • memory/1752-92-0x0000000000280000-0x0000000000281000-memory.dmp

      Filesize

      4KB

      Download

    • memory/1752-83-0x0000000000250000-0x0000000000251000-memory.dmp

      Filesize

      4KB

      Download

    • memory/1992-59-0x0000000075511000-0x0000000075513000-memory.dmp

      Filesize

      8KB

      Download

    • memory/2176-143-0x00000000007D0000-0x000000000082C000-memory.dmp

      Filesize

      368KB

      Download

    • memory/2176-142-0x0000000000A30000-0x0000000000B31000-memory.dmp

      Filesize

      1.0MB

      Download

    • memory/2240-147-0x0000000000450000-0x00000000004C0000-memory.dmp

      Filesize

      448KB

      Download

    • memory/2484-162-0x0000000000460000-0x0000000000462000-memory.dmp

      Filesize

      8KB

      Download