Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    21-09-2024 15:14

General

  • Target

    abf4910e33aafff7152c179aaeea56b144530093e3918e82c548d7627ac99217.exe

  • Size

    3.2MB

  • MD5

    4fb7da99fc2102b481dfee0b95f96b90

  • SHA1

    c6637560e4ac197bd1ebdf5e6b394fc1c335a942

  • SHA256

    abf4910e33aafff7152c179aaeea56b144530093e3918e82c548d7627ac99217

  • SHA512

    1c94f40ad2a48f22caf380df34dd1ce4036bbb733e6b5679a6063e868d7a53621433a5d789451b2c5d5eefe78064229f832bd3f7cf47b774c04b489ffa1d31c0

  • SSDEEP

    49152:hhSNGMwVbnURJs4hrqLDBttkL6R6JEl4EQo5AzwwxYXjqkNRfDUcDd+XFVD:hyezUUImLjfR6JeQyAsXJNRrNhcFVD

Malware Config

Signatures

  • Bdaejec

    Bdaejec is a backdoor written in C++.

  • 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 5 IoCs

    Detects Themida, an advanced Windows software protection system.

  • UPX packed file 27 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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 3 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\abf4910e33aafff7152c179aaeea56b144530093e3918e82c548d7627ac99217.exe
    "C:\Users\Admin\AppData\Local\Temp\abf4910e33aafff7152c179aaeea56b144530093e3918e82c548d7627ac99217.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:2272
    • C:\Users\Admin\AppData\Local\Temp\ycWCQbw.exe
      C:\Users\Admin\AppData\Local\Temp\ycWCQbw.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2052
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\4a2d1924.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1988

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\WUBCGJ0A\k2[1].rar

    Filesize

    4B

    MD5

    d3b07384d113edec49eaa6238ad5ff00

    SHA1

    f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

    SHA256

    b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

    SHA512

    0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

  • C:\Users\Admin\AppData\Local\Temp\4a2d1924.bat

    Filesize

    189B

    MD5

    1aa04de8dacf34f0656ae8e7e29b7931

    SHA1

    a5705c0f6974a00d9823a08124a27d090a684a0d

    SHA256

    0ae164c1ab47b20ccdbd48c0f277fab6318755717431c4bf65686b27d314a497

    SHA512

    4db17c557922f7be67e12294e29b345b614e0df22638abb83abca8088eb765317c67c0af2cfa8d1f00ce0d23083a6818f7445705ff39a270762717851600ff23

  • C:\Users\Admin\AppData\Local\Temp\548E663B.exe

    Filesize

    4B

    MD5

    20879c987e2f9a916e578386d499f629

    SHA1

    c7b33ddcc42361fdb847036fc07e880b81935d5d

    SHA256

    9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

    SHA512

    bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

  • \Users\Admin\AppData\Local\Temp\ycWCQbw.exe

    Filesize

    15KB

    MD5

    56b2c3810dba2e939a8bb9fa36d3cf96

    SHA1

    99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

    SHA256

    4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

    SHA512

    27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

  • memory/2052-112-0x00000000008C0000-0x00000000008C9000-memory.dmp

    Filesize

    36KB

  • memory/2052-11-0x00000000008C0000-0x00000000008C9000-memory.dmp

    Filesize

    36KB

  • memory/2272-52-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/2272-42-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/2272-16-0x0000000000400000-0x0000000000C18000-memory.dmp

    Filesize

    8.1MB

  • memory/2272-18-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/2272-19-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/2272-21-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/2272-59-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/2272-67-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/2272-66-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/2272-65-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/2272-64-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/2272-61-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/2272-57-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/2272-55-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/2272-15-0x0000000000400000-0x0000000000C18000-memory.dmp

    Filesize

    8.1MB

  • memory/2272-50-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/2272-48-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/2272-46-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/2272-41-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/2272-17-0x0000000000400000-0x0000000000C18000-memory.dmp

    Filesize

    8.1MB

  • memory/2272-39-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/2272-37-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/2272-35-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/2272-33-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/2272-31-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/2272-69-0x0000000000D20000-0x0000000000D33000-memory.dmp

    Filesize

    76KB

  • memory/2272-27-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/2272-25-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/2272-20-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/2272-23-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/2272-72-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/2272-71-0x0000000000230000-0x0000000000239000-memory.dmp

    Filesize

    36KB

  • memory/2272-70-0x0000000000400000-0x0000000000C18000-memory.dmp

    Filesize

    8.1MB

  • memory/2272-14-0x0000000077D50000-0x0000000077D52000-memory.dmp

    Filesize

    8KB

  • memory/2272-9-0x0000000000400000-0x0000000000C18000-memory.dmp

    Filesize

    8.1MB

  • memory/2272-12-0x0000000000230000-0x0000000000239000-memory.dmp

    Filesize

    36KB

  • memory/2272-10-0x0000000000230000-0x0000000000239000-memory.dmp

    Filesize

    36KB