Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/04/2024, 01:30

General

  • Target
    93f357d221fc7f72bec7195e11c8a00b9e128448850a88ca66c8cc95fa47272f.exe
  • Size 627KB
  • Sample240429-bwvc1sec55
  • SHA256 93f357d221fc7f72bec7195e11c8a00b9e128448850a88ca66c8cc95fa47272f
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • xworm

Version
  • 5.0

C2
  • 127.0.0.1:7000

  • 91.92.252.220:7000

  • 41.199.23.195:7000

  • saveclinetsforme68465454711991.publicvm.com:7000

Mutex
  • bBT8anvIxhxDFmkf

Attributes
  • Install_directory

    %AppData%

  • install_file

    explorer.exe

  • telegram

    https://api.telegram.org/bot2128988424:AAEkYnwvOQA95riqRZwlqBxg4GV-odRNOyo/sendMessage?chat_id=966649672

aes.plain

Signatures

  • Detect Xworm Payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Detects Windows executables referencing non-Windows User-Agents 1 IoCs
  • Detects executables using Telegram Chat Bot 1 IoCs
  • Checks computer location settings 2 TTPs 4 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 2 IoCs
  • Executes dropped EXE 6 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 4 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 40 IoCs
  • Suspicious use of AdjustPrivilegeToken 17 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\93f357d221fc7f72bec7195e11c8a00b9e128448850a88ca66c8cc95fa47272f.exe
    "C:\Users\Admin\AppData\Local\Temp\93f357d221fc7f72bec7195e11c8a00b9e128448850a88ca66c8cc95fa47272f.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1476
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\93f357d221fc7f72bec7195e11c8a00b9e128448850a88ca66c8cc95fa47272f.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1972
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\vKSqvdpkG.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1948
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vKSqvdpkG" /XML "C:\Users\Admin\AppData\Local\Temp\tmp66D8.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1248
    • C:\Users\Admin\AppData\Local\Temp\93f357d221fc7f72bec7195e11c8a00b9e128448850a88ca66c8cc95fa47272f.exe
      "C:\Users\Admin\AppData\Local\Temp\93f357d221fc7f72bec7195e11c8a00b9e128448850a88ca66c8cc95fa47272f.exe"
      2⤵
      • Checks computer location settings
      • Drops startup file
      • Adds Run key to start application
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2928
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\93f357d221fc7f72bec7195e11c8a00b9e128448850a88ca66c8cc95fa47272f.exe'
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:452
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '93f357d221fc7f72bec7195e11c8a00b9e128448850a88ca66c8cc95fa47272f.exe'
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1696
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\explorer.exe'
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4528
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'explorer.exe'
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4392
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "explorer" /tr "C:\Users\Admin\AppData\Roaming\explorer.exe"
        3⤵
        • Creates scheduled task(s)
        PID:1148
  • C:\Users\Admin\AppData\Roaming\explorer.exe
    C:\Users\Admin\AppData\Roaming\explorer.exe
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4580
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\explorer.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4144
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\vKSqvdpkG.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4916
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vKSqvdpkG" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2F97.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1208
    • C:\Users\Admin\AppData\Roaming\explorer.exe
      "C:\Users\Admin\AppData\Roaming\explorer.exe"
      2⤵
      • Executes dropped EXE
      PID:2320
    • C:\Users\Admin\AppData\Roaming\explorer.exe
      "C:\Users\Admin\AppData\Roaming\explorer.exe"
      2⤵
      • Executes dropped EXE
      PID:4604
    • C:\Users\Admin\AppData\Roaming\explorer.exe
      "C:\Users\Admin\AppData\Roaming\explorer.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:928
  • C:\Users\Admin\AppData\Roaming\explorer.exe
    C:\Users\Admin\AppData\Roaming\explorer.exe
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2316
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\explorer.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1196
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\vKSqvdpkG.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4844
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vKSqvdpkG" /XML "C:\Users\Admin\AppData\Local\Temp\tmp15E0.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:720
    • C:\Users\Admin\AppData\Roaming\explorer.exe
      "C:\Users\Admin\AppData\Roaming\explorer.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:3700

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        explorer.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\explorer.exe.log
        • Size 1KB
        • SHA256 c8fa64f4b69df13ed6408fd4a204f318a36c2f38c85d4a4d42adfc9173f73765
        • MD5 SHA1 SHA512

        powershell.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
        • Size 2KB
        • SHA256 92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
        • MD5 SHA1 SHA512

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 18KB
        • SHA256 28fc1d8b9dd6bfc2e30bdea05f3373c8f97c5b3cdb41e5443ebccdb96381b302
        • MD5 SHA1 SHA512 SSDEEP

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 18KB
        • SHA256 e3eb837210d064220e5d5c4596131b7b6c83baed70ea71cb3434225bcef6f071
        • MD5 SHA1 SHA512 SSDEEP

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 18KB
        • SHA256 c65ad69198c649ea883f472ba04894e99da5ad3b96e3ab024df7275346555bcb
        • MD5 SHA1 SHA512 SSDEEP

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 18KB
        • SHA256 333aa4e9e9e8ebb1c5732600077cb96384b5436b61daf0ea8706eda6022ca25a
        • MD5 SHA1 SHA512 SSDEEP

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 255B
        • SHA256 a92e84103b12afa4b5b45f0446014cfc1122d3cc9779083b08a574619386e45e
        • MD5 SHA1 SHA512

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 18KB
        • SHA256 238c353b0a21ef4f541c187d13ae482b85ff041be2f9a0137c36dc450ef74593
        • MD5 SHA1 SHA512 SSDEEP

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 18KB
        • SHA256 e32a136769e90f926fba5c45e1b3d6db87094f6214fb93a51bd9f22f0c31fded
        • MD5 SHA1 SHA512 SSDEEP

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 18KB
        • SHA256 3d553a7c5b73eda27b50ace6991e09c8f40ff2eeb6ca4f03463452d28c158c5d
        • MD5 SHA1 SHA512 SSDEEP

        __PSScriptPolicyTest_vvigcueq.pbg.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vvigcueq.pbg.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512

        tmp66D8.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmp66D8.tmp
        • Size 1KB
        • SHA256 4537a214661e94dc6ea9af0d36b2c83014bfcc70795b6a481fa5995a0ec69db6
        • MD5 SHA1 SHA512

        explorer.exe

        • Path C:\Users\Admin\AppData\Roaming\explorer.exe
        • Size 627KB
        • SHA256 93f357d221fc7f72bec7195e11c8a00b9e128448850a88ca66c8cc95fa47272f
        • MD5 SHA1 SHA512 SSDEEP

        memory/452-110-0x0000000006FE0000-0x0000000006FF1000-memory.dmp

        memory/452-111-0x0000000007010000-0x0000000007024000-memory.dmp

        memory/452-94-0x0000000005430000-0x0000000005784000-memory.dmp

        memory/452-98-0x0000000005AF0000-0x0000000005B3C000-memory.dmp

        memory/452-99-0x000000006F9A0000-0x000000006F9EC000-memory.dmp

        memory/452-109-0x0000000006C60000-0x0000000006D03000-memory.dmp

        memory/1196-242-0x00000000060A0000-0x00000000063F4000-memory.dmp

        memory/1196-265-0x000000006F880000-0x000000006F8CC000-memory.dmp

        memory/1476-9-0x0000000004CC0000-0x0000000004D14000-memory.dmp

        memory/1476-45-0x0000000074920000-0x00000000750D0000-memory.dmp

        memory/1476-2-0x0000000006E90000-0x0000000006EA0000-memory.dmp

        memory/1476-3-0x0000000007650000-0x0000000007BF4000-memory.dmp

        memory/1476-6-0x00000000087A0000-0x000000000883C000-memory.dmp

        memory/1476-8-0x0000000007D00000-0x0000000007D14000-memory.dmp

        memory/1476-5-0x0000000004460000-0x000000000446A000-memory.dmp

        memory/1476-4-0x00000000072C0000-0x0000000007352000-memory.dmp

        memory/1476-0-0x0000000000110000-0x00000000001B2000-memory.dmp

        memory/1476-7-0x0000000007620000-0x0000000007640000-memory.dmp

        memory/1476-1-0x0000000074920000-0x00000000750D0000-memory.dmp

        memory/1696-124-0x000000006F9A0000-0x000000006F9EC000-memory.dmp

        memory/1696-122-0x0000000006370000-0x00000000066C4000-memory.dmp

        memory/1948-77-0x0000000007350000-0x0000000007364000-memory.dmp

        memory/1948-37-0x0000000005850000-0x0000000005BA4000-memory.dmp

        memory/1948-76-0x0000000007340000-0x000000000734E000-memory.dmp

        memory/1948-19-0x0000000074920000-0x00000000750D0000-memory.dmp

        memory/1948-78-0x0000000007450000-0x000000000746A000-memory.dmp

        memory/1948-46-0x0000000005DF0000-0x0000000005E0E000-memory.dmp

        memory/1948-73-0x0000000007180000-0x000000000718A000-memory.dmp

        memory/1948-86-0x0000000074920000-0x00000000750D0000-memory.dmp

        memory/1948-47-0x0000000005E80000-0x0000000005ECC000-memory.dmp

        memory/1948-59-0x00000000063A0000-0x00000000063BE000-memory.dmp

        memory/1948-71-0x0000000007750000-0x0000000007DCA000-memory.dmp

        memory/1948-70-0x0000000006FF0000-0x0000000007093000-memory.dmp

        memory/1948-48-0x00000000063C0000-0x00000000063F2000-memory.dmp

        memory/1948-49-0x00000000751D0000-0x000000007521C000-memory.dmp

        memory/1972-14-0x0000000002F50000-0x0000000002F86000-memory.dmp

        memory/1972-17-0x0000000002FC0000-0x0000000002FD0000-memory.dmp

        memory/1972-85-0x0000000074920000-0x00000000750D0000-memory.dmp

        memory/1972-79-0x0000000007EB0000-0x0000000007EB8000-memory.dmp

        memory/1972-18-0x0000000005B10000-0x0000000006138000-memory.dmp

        memory/1972-75-0x0000000007D90000-0x0000000007DA1000-memory.dmp

        memory/1972-72-0x0000000007B90000-0x0000000007BAA000-memory.dmp

        memory/1972-21-0x0000000005940000-0x00000000059A6000-memory.dmp

        memory/1972-74-0x0000000007E10000-0x0000000007EA6000-memory.dmp

        memory/1972-22-0x0000000006140000-0x00000000061A6000-memory.dmp

        memory/1972-60-0x00000000751D0000-0x000000007521C000-memory.dmp

        memory/1972-16-0x0000000002FC0000-0x0000000002FD0000-memory.dmp

        memory/1972-15-0x0000000074920000-0x00000000750D0000-memory.dmp

        memory/1972-20-0x00000000058A0000-0x00000000058C2000-memory.dmp

        memory/2928-43-0x0000000000400000-0x0000000000412000-memory.dmp

        memory/4144-212-0x000000006F880000-0x000000006F8CC000-memory.dmp

        memory/4144-222-0x0000000007280000-0x0000000007323000-memory.dmp

        memory/4144-211-0x00000000060D0000-0x000000000611C000-memory.dmp

        memory/4144-233-0x0000000007590000-0x00000000075A1000-memory.dmp

        memory/4144-194-0x0000000005BB0000-0x0000000005F04000-memory.dmp

        memory/4392-166-0x000000006F9A0000-0x000000006F9EC000-memory.dmp

        memory/4528-145-0x000000006F9A0000-0x000000006F9EC000-memory.dmp

        memory/4580-183-0x0000000008230000-0x0000000008244000-memory.dmp

        memory/4844-275-0x000000006F880000-0x000000006F8CC000-memory.dmp

        memory/4916-234-0x0000000007830000-0x0000000007844000-memory.dmp

        memory/4916-223-0x000000006F880000-0x000000006F8CC000-memory.dmp