Analysis

  • max time kernel
    150s
  • max time network
    131s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    02/09/2024, 01:23

General

  • Target
    f02b37f3ab908ec8656ef159289315a39cf6ddd4723590dd942eeb340346f6dc.exe
  • Size 1.9MB
  • Sample240902-br6v9aydne
  • SHA256 f02b37f3ab908ec8656ef159289315a39cf6ddd4723590dd942eeb340346f6dc
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • amadey

Version
  • 4.41

Botnet
  • 0657d1

C2
  • http://185.215.113.19

Attributes
  • install_dir

    0d8f5eb8a7

  • install_file

    explorti.exe

  • strings_key

    6c55a5f34bb433fbd933a168577b1838

  • url_paths

    /Vi9leo/index.php

rc4.plain

Extracted

Family
  • amadey

Version
  • 4.41

Botnet
  • c7817d

C2
  • http://31.41.244.10

Attributes
  • install_dir

    0e8d0864aa

  • install_file

    svoutse.exe

  • strings_key

    5481b88a6ef75bcf21333988a4e47048

  • url_paths

    /Dem7kTu/index.php

rc4.plain

Extracted

Family
  • stealc

Botnet
  • leva

C2
  • http://185.215.113.100

Attributes
  • url_path

    /e2b1563c6670f193.php

Signatures

  • Amadey

    Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

  • Stealc

    Stealc is an infostealer written in C++.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 6 IoCs
  • Downloads MZ/PE file
  • Checks BIOS information in registry 2 TTPs 12 IoCs

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

  • Executes dropped EXE 6 IoCs
  • Identifies Wine through registry keys 2 TTPs 6 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Loads dropped DLL 8 IoCs
  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Delays execution with timeout.exe 1 IoCs
  • Kills process with taskkill 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f02b37f3ab908ec8656ef159289315a39cf6ddd4723590dd942eeb340346f6dc.exe
    "C:\Users\Admin\AppData\Local\Temp\f02b37f3ab908ec8656ef159289315a39cf6ddd4723590dd942eeb340346f6dc.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:2436
    • C:\Users\Admin\AppData\Local\Temp\0d8f5eb8a7\explorti.exe
      "C:\Users\Admin\AppData\Local\Temp\0d8f5eb8a7\explorti.exe"
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Identifies Wine through registry keys
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2732
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k "taskkill /f /im "explorti.exe" && timeout 1 && del "explorti.exe" && ren 0657d1 explorti.exe && C:\Users\Admin\AppData\Local\Temp\0d8f5eb8a7\explorti.exe && Exit"
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1744
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /f /im "explorti.exe"
          4⤵
          • System Location Discovery: System Language Discovery
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:1612
        • C:\Windows\SysWOW64\timeout.exe
          timeout 1
          4⤵
          • System Location Discovery: System Language Discovery
          • Delays execution with timeout.exe
          PID:2964
        • C:\Users\Admin\AppData\Local\Temp\0d8f5eb8a7\explorti.exe
          C:\Users\Admin\AppData\Local\Temp\0d8f5eb8a7\explorti.exe
          4⤵
          • Identifies VirtualBox via ACPI registry values (likely anti-VM)
          • Checks BIOS information in registry
          • Executes dropped EXE
          • Identifies Wine through registry keys
          • Loads dropped DLL
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of WriteProcessMemory
          PID:1504
          • C:\Users\Admin\AppData\Local\Temp\0e8d0864aa\svoutse.exe
            "C:\Users\Admin\AppData\Local\Temp\0e8d0864aa\svoutse.exe"
            5⤵
            • Identifies VirtualBox via ACPI registry values (likely anti-VM)
            • Checks BIOS information in registry
            • Executes dropped EXE
            • Identifies Wine through registry keys
            • Loads dropped DLL
            • Suspicious use of NtSetInformationThreadHideFromDebugger
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of WriteProcessMemory
            PID:2040
            • C:\Users\Admin\AppData\Roaming\1000026000\20ea11345c.exe
              "C:\Users\Admin\AppData\Roaming\1000026000\20ea11345c.exe"
              6⤵
              • Identifies VirtualBox via ACPI registry values (likely anti-VM)
              • Checks BIOS information in registry
              • Executes dropped EXE
              • Identifies Wine through registry keys
              • Suspicious use of NtSetInformationThreadHideFromDebugger
              • System Location Discovery: System Language Discovery
              • Suspicious behavior: EnumeratesProcesses
              PID:1636
            • C:\Users\Admin\AppData\Roaming\1000027000\6840006b86.exe
              "C:\Users\Admin\AppData\Roaming\1000027000\6840006b86.exe"
              6⤵
              • Identifies VirtualBox via ACPI registry values (likely anti-VM)
              • Checks BIOS information in registry
              • Executes dropped EXE
              • Identifies Wine through registry keys
              • Suspicious use of NtSetInformationThreadHideFromDebugger
              • System Location Discovery: System Language Discovery
              • Suspicious behavior: EnumeratesProcesses
              PID:2512
            • C:\Users\Admin\AppData\Local\Temp\1000028001\bcb6395389.exe
              "C:\Users\Admin\AppData\Local\Temp\1000028001\bcb6395389.exe"
              6⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              • Suspicious use of FindShellTrayWindow
              • Suspicious use of SendNotifyMessage
              PID:2428

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        0657d1

        • Path C:\Users\Admin\AppData\Local\Temp\0d8f5eb8a7\0657d1
        • Size 1.8MB
        • SHA256 0cce55a6fec4dbf3581208ef779f877ff43ecbaa27d2f2119d6552d06b684493
        • MD5 SHA1 SHA512 SSDEEP

        bcb6395389.exe

        • Path C:\Users\Admin\AppData\Local\Temp\1000028001\bcb6395389.exe
        • Size 896KB
        • SHA256 1cf0747ce1310fd989b24a93d2108784efb003948fdec1f7e64479213075cb90
        • MD5 SHA1 SHA512 SSDEEP

        20ea11345c.exe

        • Path C:\Users\Admin\AppData\Roaming\1000026000\20ea11345c.exe
        • Size 1.7MB
        • SHA256 83ebffd7d12fabe2f1bf465425e0883ff62d4bbdbab60924acaafd8ce197465c
        • MD5 SHA1 SHA512 SSDEEP

        explorti.exe

        • Path \Users\Admin\AppData\Local\Temp\0d8f5eb8a7\explorti.exe
        • Size 1.9MB
        • SHA256 f02b37f3ab908ec8656ef159289315a39cf6ddd4723590dd942eeb340346f6dc
        • MD5 SHA1 SHA512 SSDEEP

        memory/1504-47-0x0000000000E40000-0x0000000001308000-memory.dmp

        memory/1636-91-0x0000000000060000-0x00000000006F1000-memory.dmp

        memory/1636-68-0x0000000000060000-0x00000000006F1000-memory.dmp

        memory/1744-36-0x00000000024B0000-0x0000000002978000-memory.dmp

        memory/2040-109-0x0000000006C70000-0x0000000007301000-memory.dmp

        memory/2040-49-0x0000000000D80000-0x0000000001248000-memory.dmp

        memory/2040-122-0x0000000000D80000-0x0000000001248000-memory.dmp

        memory/2040-121-0x0000000000D80000-0x0000000001248000-memory.dmp

        memory/2040-120-0x0000000000D80000-0x0000000001248000-memory.dmp

        memory/2040-119-0x0000000000D80000-0x0000000001248000-memory.dmp

        memory/2040-118-0x0000000000D80000-0x0000000001248000-memory.dmp

        memory/2040-117-0x0000000000D80000-0x0000000001248000-memory.dmp

        memory/2040-116-0x0000000000D80000-0x0000000001248000-memory.dmp

        memory/2040-115-0x0000000000D80000-0x0000000001248000-memory.dmp

        memory/2040-114-0x0000000000D80000-0x0000000001248000-memory.dmp

        memory/2040-107-0x0000000000D80000-0x0000000001248000-memory.dmp

        memory/2040-113-0x0000000000D80000-0x0000000001248000-memory.dmp

        memory/2040-112-0x0000000000D80000-0x0000000001248000-memory.dmp

        memory/2040-67-0x0000000006C70000-0x0000000007301000-memory.dmp

        memory/2040-69-0x0000000006C70000-0x0000000007301000-memory.dmp

        memory/2040-88-0x0000000000D80000-0x0000000001248000-memory.dmp

        memory/2040-87-0x0000000006C70000-0x0000000007301000-memory.dmp

        memory/2040-86-0x0000000006C70000-0x0000000007301000-memory.dmp

        memory/2040-111-0x0000000000D80000-0x0000000001248000-memory.dmp

        memory/2040-110-0x0000000000D80000-0x0000000001248000-memory.dmp

        memory/2040-108-0x0000000006C70000-0x0000000007301000-memory.dmp

        memory/2436-6-0x00000000000F0000-0x00000000005C4000-memory.dmp

        memory/2436-14-0x00000000000F0000-0x00000000005C4000-memory.dmp

        memory/2436-19-0x00000000000F0000-0x00000000005C4000-memory.dmp

        memory/2436-0-0x00000000000F0000-0x00000000005C4000-memory.dmp

        memory/2436-2-0x00000000000F1000-0x000000000011F000-memory.dmp

        memory/2436-1-0x00000000774E0000-0x00000000774E2000-memory.dmp

        memory/2436-3-0x00000000000F0000-0x00000000005C4000-memory.dmp

        memory/2436-4-0x00000000000F0000-0x00000000005C4000-memory.dmp

        memory/2436-16-0x0000000006F90000-0x0000000007464000-memory.dmp

        memory/2512-89-0x0000000000C00000-0x0000000001291000-memory.dmp

        memory/2512-92-0x0000000000C00000-0x0000000001291000-memory.dmp

        memory/2732-33-0x0000000000D50000-0x0000000001224000-memory.dmp

        memory/2732-17-0x0000000000D50000-0x0000000001224000-memory.dmp

        memory/2732-24-0x0000000000D50000-0x0000000001224000-memory.dmp

        memory/2732-23-0x0000000000D50000-0x0000000001224000-memory.dmp

        memory/2732-21-0x0000000000D50000-0x0000000001224000-memory.dmp

        memory/2732-20-0x0000000000D51000-0x0000000000D7F000-memory.dmp