Analysis

  • max time kernel
    140s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    07-11-2024 16:09

General

  • Target

    e4a719c3efa888ae091f47a3780b88bb55d7ec53e69beed192100ac2a83efedf.exe

  • Size

    11.5MB

  • MD5

    962cb1ff9baee7c0a3e46fb76f4fa3cb

  • SHA1

    62d96fc4bd2ed1389a28012876b5d3976243ff39

  • SHA256

    e4a719c3efa888ae091f47a3780b88bb55d7ec53e69beed192100ac2a83efedf

  • SHA512

    7a3a399aea61c3fdbc833819c6cb0d7f3cecdc93fa3424b860d0df23e09daa5e63f4684a295750424d0a38e0e113fa50b5dd6b5fc0ff0f26827f1ce249997263

  • SSDEEP

    196608:FAQuVH3M82sRhWphk2XmH24Wgf7TInXinHuE50PbdtwsmrKVveZleGxzLVyyqg:GLxM8r22PvInXinHuK0xCKVvetRVl

Malware Config

Extracted

Family

bdaejec

C2

ddos.dnsnb8.net

Signatures

  • Bdaejec

    Bdaejec is a backdoor written in C++.

  • Bdaejec family
  • Detects Bdaejec Backdoor. 2 IoCs

    Bdaejec is backdoor written in C++.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • ASPack v2.12-2.42 1 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Themida packer 19 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e4a719c3efa888ae091f47a3780b88bb55d7ec53e69beed192100ac2a83efedf.exe
    "C:\Users\Admin\AppData\Local\Temp\e4a719c3efa888ae091f47a3780b88bb55d7ec53e69beed192100ac2a83efedf.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Loads dropped DLL
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2112
    • C:\Users\Admin\AppData\Local\Temp\dziAyq.exe
      C:\Users\Admin\AppData\Local\Temp\dziAyq.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1864
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\35e13cf8.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2756

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\35e13cf8.bat

    Filesize

    187B

    MD5

    af3b11c6d68ce2b8f92e962980f2ca8a

    SHA1

    953300de51b6bd469c3a018bcb2522ab25fb873d

    SHA256

    18e710e2e9bb16b31a6a26d3de816bddc57be8c2a4cb7427ce1c4c20f5c1e394

    SHA512

    07f647762d76167f193e69d677597497dbe8749390f82988c1aaf8931a2f5143d75258b77f015bb91502aeed419a790db49dbf09541b28c5d899b666611395b3

  • C:\Users\Admin\AppData\Local\Temp\dziAyq.exe

    Filesize

    15KB

    MD5

    56b2c3810dba2e939a8bb9fa36d3cf96

    SHA1

    99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

    SHA256

    4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

    SHA512

    27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

  • memory/1864-12-0x00000000009A0000-0x00000000009A9000-memory.dmp

    Filesize

    36KB

  • memory/1864-39-0x00000000009A0000-0x00000000009A9000-memory.dmp

    Filesize

    36KB

  • memory/2112-43-0x0000000000400000-0x00000000016E2000-memory.dmp

    Filesize

    18.9MB

  • memory/2112-44-0x0000000000400000-0x00000000016E2000-memory.dmp

    Filesize

    18.9MB

  • memory/2112-15-0x0000000000400000-0x00000000016E2000-memory.dmp

    Filesize

    18.9MB

  • memory/2112-16-0x0000000000400000-0x00000000016E2000-memory.dmp

    Filesize

    18.9MB

  • memory/2112-18-0x0000000010000000-0x0000000010116000-memory.dmp

    Filesize

    1.1MB

  • memory/2112-17-0x0000000000400000-0x00000000016E2000-memory.dmp

    Filesize

    18.9MB

  • memory/2112-10-0x0000000000400000-0x00000000016E2000-memory.dmp

    Filesize

    18.9MB

  • memory/2112-11-0x00000000001C0000-0x00000000001C9000-memory.dmp

    Filesize

    36KB

  • memory/2112-41-0x0000000000400000-0x00000000016E2000-memory.dmp

    Filesize

    18.9MB

  • memory/2112-42-0x0000000000400000-0x00000000016E2000-memory.dmp

    Filesize

    18.9MB

  • memory/2112-13-0x00000000001C0000-0x00000000001C9000-memory.dmp

    Filesize

    36KB

  • memory/2112-14-0x00000000774F0000-0x00000000774F2000-memory.dmp

    Filesize

    8KB

  • memory/2112-45-0x0000000000400000-0x00000000016E2000-memory.dmp

    Filesize

    18.9MB

  • memory/2112-46-0x0000000000400000-0x00000000016E2000-memory.dmp

    Filesize

    18.9MB

  • memory/2112-47-0x0000000000400000-0x00000000016E2000-memory.dmp

    Filesize

    18.9MB

  • memory/2112-48-0x0000000000400000-0x00000000016E2000-memory.dmp

    Filesize

    18.9MB

  • memory/2112-49-0x00000000001C0000-0x00000000001C9000-memory.dmp

    Filesize

    36KB

  • memory/2112-50-0x0000000000400000-0x00000000016E2000-memory.dmp

    Filesize

    18.9MB

  • memory/2112-51-0x0000000000400000-0x00000000016E2000-memory.dmp

    Filesize

    18.9MB

  • memory/2112-52-0x0000000000400000-0x00000000016E2000-memory.dmp

    Filesize

    18.9MB

  • memory/2112-53-0x0000000000400000-0x00000000016E2000-memory.dmp

    Filesize

    18.9MB

  • memory/2112-54-0x0000000000400000-0x00000000016E2000-memory.dmp

    Filesize

    18.9MB

  • memory/2112-55-0x0000000000400000-0x00000000016E2000-memory.dmp

    Filesize

    18.9MB

  • memory/2112-56-0x0000000000400000-0x00000000016E2000-memory.dmp

    Filesize

    18.9MB