Analysis

  • max time kernel
    152s
  • max time network
    162s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    26/03/2024, 03:51

General

  • Target
    b4e094a5fafc8ab2c37a32137b1df21a.exe
  • Size 375.2MB
  • Sample240326-ee111sff3t
  • SHA256 dcdd4aaad5178efc26cbff22432e0a327622aed85bc74e323f07156014fcdae8
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 3 IoCs
  • Checks BIOS information in registry 2 TTPs 6 IoCs

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

  • Drops startup file 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 IoCs
  • Obfuscated with Agile.Net obfuscator 6 IoCs

    Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

  • Themida packer 24 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 3 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 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 NtSetInformationThreadHideFromDebugger 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\b4e094a5fafc8ab2c37a32137b1df21a.exe
    "C:\Users\Admin\AppData\Local\Temp\b4e094a5fafc8ab2c37a32137b1df21a.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Drops startup file
    • Loads dropped DLL
    • Adds Run key to start application
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2772
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\b4e094a5fafc8ab2c37a32137b1df21a.exe'
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2744
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'b4e094a5fafc8ab2c37a32137b1df21a.exe'
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:572
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\OneDrive.exe'
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2644
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'OneDrive.exe'
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1676
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "OneDrive" /tr "C:\Users\Admin\AppData\Roaming\OneDrive.exe"
      2⤵
      • Creates scheduled task(s)
      PID:1772
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {29E9D254-5446-41F3-818E-94651C9C2147} S-1-5-21-330940541-141609230-1670313778-1000:KXIPPCKF\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1512
    • C:\Users\Admin\AppData\Roaming\OneDrive.exe
      C:\Users\Admin\AppData\Roaming\OneDrive.exe
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks whether UAC is enabled
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of AdjustPrivilegeToken
      PID:2808
    • C:\Users\Admin\AppData\Roaming\OneDrive.exe
      C:\Users\Admin\AppData\Roaming\OneDrive.exe
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks whether UAC is enabled
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of AdjustPrivilegeToken
      PID:1488

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        F0ACCF77CDCBFF39F6191887F6D2D357

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\F0ACCF77CDCBFF39F6191887F6D2D357
        • Size 1KB
        • SHA256 df545bf919a2439c36983b54cdfc903dfa4f37d3996d8d84b4c31eec6f3c163e
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 344B
        • SHA256 4a8f8a2772d1a610878edf77e44ef8ad11088a5e12a5f841cc55025d5934e7a9
        • MD5 SHA1 SHA512

        F0ACCF77CDCBFF39F6191887F6D2D357

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357
        • Size 242B
        • SHA256 347581d992dfdbdb167c900e618ee494ee4d6f1b205447900884e76c5d308d10
        • MD5 SHA1 SHA512

        Cab5522.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\Cab5522.tmp
        • Size 65KB
        • SHA256 c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d
        • MD5 SHA1 SHA512 SSDEEP

        Tar3AD0.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\Tar3AD0.tmp
        • Size 171KB
        • SHA256 4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f
        • MD5 SHA1 SHA512 SSDEEP

        AgileDotNetRT64.dll

        • Path C:\Users\Admin\AppData\Local\Temp\cc944bda-b387-4ef1-9cd0-0e21246370e2\AgileDotNetRT64.dll
        • Size 1.6MB
        • SHA256 e7fcee64cba42c231651fcb855a72583ff703a5f467fcf8b01e3830cd59f5a0e
        • MD5 SHA1 SHA512 SSDEEP

        AgileDotNetRT64.dll

        • Path C:\Users\Admin\AppData\Local\Temp\cc944bda-b387-4ef1-9cd0-0e21246370e2\AgileDotNetRT64.dll
        • Size 1.6MB
        • SHA256 4a23a7894bc85fd73fe12664c5c8ac88a943a9fcd062aa066a83c0e116be36dd
        • MD5 SHA1 SHA512 SSDEEP

        590aee7bdd69b59b.customDestinations-ms

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
        • Size 7KB
        • SHA256 7c3581444050ad964008b58f90352cc7e41061335dace8869f95fd51c12b0134
        • MD5 SHA1 SHA512 SSDEEP

        OneDrive.exe

        • Path C:\Users\Admin\AppData\Roaming\OneDrive.exe
        • Size 2.9MB
        • SHA256 d2d968e18c508c3dadcc5acb7f5568910216bf4a7eaad00c0e756fc96980bbd7
        • MD5 SHA1 SHA512 SSDEEP

        OneDrive.exe

        • Path C:\Users\Admin\AppData\Roaming\OneDrive.exe
        • Size 3.6MB
        • SHA256 c4cdd4dbb55ae19ab503ee5e35a86763ae044a759ccb45c4df0074e343ca8349
        • MD5 SHA1 SHA512 SSDEEP

        OneDrive.exe

        • Path C:\Users\Admin\AppData\Roaming\OneDrive.exe
        • Size 3.2MB
        • SHA256 2cf04970154f6a87706c1551e2d492720c189f939754f89013b09607638299ce
        • MD5 SHA1 SHA512 SSDEEP

        AgileDotNetRT64.dll

        • Path \Users\Admin\AppData\Local\Temp\cc944bda-b387-4ef1-9cd0-0e21246370e2\AgileDotNetRT64.dll
        • Size 1.7MB
        • SHA256 61fc7d7ec8a6554612b3707c9e71b18d563398bbd0bec0e9e3c102f4651a164c
        • MD5 SHA1 SHA512 SSDEEP

        AgileDotNetRT64.dll

        • Path \Users\Admin\AppData\Local\Temp\cc944bda-b387-4ef1-9cd0-0e21246370e2\AgileDotNetRT64.dll
        • Size 1.1MB
        • SHA256 26c8ed30239ffc96c351f173e32fbfa4bdd3e7d191898aba0f2081fac718d945
        • MD5 SHA1 SHA512 SSDEEP

        AgileDotNetRT64.dll

        • Path \Users\Admin\AppData\Local\Temp\cc944bda-b387-4ef1-9cd0-0e21246370e2\AgileDotNetRT64.dll
        • Size 1.8MB
        • SHA256 4d38fdf054e5e9e4dd6b98a7f31b535eabf25f48df24a96970f8c987ad1ee7a8
        • MD5 SHA1 SHA512 SSDEEP

        memory/572-43-0x000007FEEC340000-0x000007FEECCDD000-memory.dmp

        memory/572-46-0x0000000002390000-0x0000000002410000-memory.dmp

        memory/572-51-0x000007FEEC340000-0x000007FEECCDD000-memory.dmp

        memory/572-50-0x0000000002390000-0x0000000002410000-memory.dmp

        memory/572-48-0x0000000002390000-0x0000000002410000-memory.dmp

        memory/572-41-0x000000001B340000-0x000000001B622000-memory.dmp

        memory/572-42-0x0000000001D90000-0x0000000001D98000-memory.dmp

        memory/572-47-0x000007FEEC340000-0x000007FEECCDD000-memory.dmp

        memory/1488-130-0x000007FEED680000-0x000007FEEE204000-memory.dmp

        memory/1488-114-0x000007FEF5C40000-0x000007FEF662C000-memory.dmp

        memory/1488-129-0x000007FEF4580000-0x000007FEF46AC000-memory.dmp

        memory/1488-119-0x000007FEED680000-0x000007FEEE204000-memory.dmp

        memory/1488-118-0x0000000077830000-0x00000000779D9000-memory.dmp

        memory/1488-131-0x000007FEF5C40000-0x000007FEF662C000-memory.dmp

        memory/1488-117-0x000007FEED680000-0x000007FEEE204000-memory.dmp

        memory/1488-115-0x00000000002F0000-0x0000000000370000-memory.dmp

        memory/1488-132-0x0000000077830000-0x00000000779D9000-memory.dmp

        memory/1676-72-0x000007FEEC340000-0x000007FEECCDD000-memory.dmp

        memory/1676-69-0x000007FEEC340000-0x000007FEECCDD000-memory.dmp

        memory/1676-70-0x0000000002550000-0x00000000025D0000-memory.dmp

        memory/1676-71-0x0000000002550000-0x00000000025D0000-memory.dmp

        memory/1676-73-0x0000000002550000-0x00000000025D0000-memory.dmp

        memory/1676-74-0x000007FEEC340000-0x000007FEECCDD000-memory.dmp

        memory/2644-58-0x000007FEECCE0000-0x000007FEED67D000-memory.dmp

        memory/2644-60-0x000007FEECCE0000-0x000007FEED67D000-memory.dmp

        memory/2644-61-0x00000000029A0000-0x0000000002A20000-memory.dmp

        memory/2644-62-0x00000000029A0000-0x0000000002A20000-memory.dmp

        memory/2644-63-0x000007FEECCE0000-0x000007FEED67D000-memory.dmp

        memory/2644-59-0x00000000029A0000-0x0000000002A20000-memory.dmp

        memory/2744-30-0x000007FEECCE0000-0x000007FEED67D000-memory.dmp

        memory/2744-35-0x000007FEECCE0000-0x000007FEED67D000-memory.dmp

        memory/2744-28-0x000000001B170000-0x000000001B452000-memory.dmp

        memory/2744-29-0x00000000025E0000-0x00000000025E8000-memory.dmp

        memory/2744-31-0x0000000002790000-0x0000000002810000-memory.dmp

        memory/2744-32-0x0000000002790000-0x0000000002810000-memory.dmp

        memory/2744-33-0x000007FEECCE0000-0x000007FEED67D000-memory.dmp

        memory/2772-23-0x000007FEED680000-0x000007FEEE204000-memory.dmp

        memory/2772-106-0x000007FEED680000-0x000007FEEE204000-memory.dmp

        memory/2772-136-0x000007FEED680000-0x000007FEEE204000-memory.dmp

        memory/2772-134-0x000007FEED680000-0x000007FEEE204000-memory.dmp

        memory/2772-133-0x000007FEED680000-0x000007FEEE204000-memory.dmp

        memory/2772-44-0x000000001B580000-0x000000001B600000-memory.dmp

        memory/2772-49-0x0000000077830000-0x00000000779D9000-memory.dmp

        memory/2772-1-0x000007FEF5C40000-0x000007FEF662C000-memory.dmp

        memory/2772-45-0x000007FEED680000-0x000007FEEE204000-memory.dmp

        memory/2772-2-0x000000001B580000-0x000000001B600000-memory.dmp

        memory/2772-9-0x000007FEED680000-0x000007FEEE204000-memory.dmp

        memory/2772-81-0x000007FEED680000-0x000007FEEE204000-memory.dmp

        memory/2772-107-0x000007FEED680000-0x000007FEEE204000-memory.dmp

        memory/2772-108-0x000007FEED680000-0x000007FEEE204000-memory.dmp

        memory/2772-34-0x000007FEF5C40000-0x000007FEF662C000-memory.dmp

        memory/2772-10-0x0000000077830000-0x00000000779D9000-memory.dmp

        memory/2772-12-0x000007FEED680000-0x000007FEEE204000-memory.dmp

        memory/2772-22-0x000007FEF4580000-0x000007FEF46AC000-memory.dmp

        memory/2772-0-0x00000000002F0000-0x00000000009F8000-memory.dmp

        memory/2772-57-0x000007FEED680000-0x000007FEEE204000-memory.dmp

        memory/2772-76-0x000007FEED680000-0x000007FEEE204000-memory.dmp

        memory/2808-103-0x000007FEED680000-0x000007FEEE204000-memory.dmp

        memory/2808-84-0x000007FEF5C40000-0x000007FEF662C000-memory.dmp

        memory/2808-85-0x0000000000D60000-0x0000000001468000-memory.dmp

        memory/2808-86-0x00000000005B0000-0x0000000000630000-memory.dmp

        memory/2808-105-0x0000000077830000-0x00000000779D9000-memory.dmp

        memory/2808-104-0x000007FEF5C40000-0x000007FEF662C000-memory.dmp

        memory/2808-102-0x000007FEF4580000-0x000007FEF46AC000-memory.dmp

        memory/2808-91-0x000007FEED680000-0x000007FEEE204000-memory.dmp

        memory/2808-90-0x0000000077830000-0x00000000779D9000-memory.dmp

        memory/2808-89-0x000007FEED680000-0x000007FEEE204000-memory.dmp