Analysis

  • max time kernel
    94s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-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. 1 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.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Themida packer 5 IoCs

    Detects Themida, an advanced Windows software protection system.

  • UPX packed file 26 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 6 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
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:5040
    • C:\Users\Admin\AppData\Local\Temp\ycWCQbw.exe
      C:\Users\Admin\AppData\Local\Temp\ycWCQbw.exe
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2352
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\1d8e5707.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1212

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\BRZNMQLE\k2[1].rar

    Filesize

    4B

    MD5

    d3b07384d113edec49eaa6238ad5ff00

    SHA1

    f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

    SHA256

    b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

    SHA512

    0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

  • C:\Users\Admin\AppData\Local\Temp\1d8e5707.bat

    Filesize

    189B

    MD5

    eff65e5c0bddf8f591dcc51457ea0e4e

    SHA1

    00bfa6bfe3575d911a4ac523ec23c296c16f05d0

    SHA256

    b7747c3b7777f8e54d10d8595812651b392643f0648387e794a5400daf5eacd4

    SHA512

    544b9c75da2fd551f9365072a35ae16074a467538311eba033f6934653bc95c9b417f24a4239caf5cb4057b46bfbedad897dc4075118bf6398bba8d5b5920bec

  • C:\Users\Admin\AppData\Local\Temp\3F277DBC.exe

    Filesize

    4B

    MD5

    20879c987e2f9a916e578386d499f629

    SHA1

    c7b33ddcc42361fdb847036fc07e880b81935d5d

    SHA256

    9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

    SHA512

    bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

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

    Filesize

    15KB

    MD5

    56b2c3810dba2e939a8bb9fa36d3cf96

    SHA1

    99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

    SHA256

    4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

    SHA512

    27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

  • memory/2352-4-0x00000000000F0000-0x00000000000F9000-memory.dmp

    Filesize

    36KB

  • memory/2352-104-0x00000000000F0000-0x00000000000F9000-memory.dmp

    Filesize

    36KB

  • memory/5040-72-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/5040-61-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/5040-9-0x0000000000400000-0x0000000000C18000-memory.dmp

    Filesize

    8.1MB

  • memory/5040-89-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/5040-90-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/5040-91-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/5040-86-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/5040-99-0x0000000002FC0000-0x0000000002FD3000-memory.dmp

    Filesize

    76KB

  • memory/5040-81-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/5040-79-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/5040-77-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/5040-74-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/5040-0-0x0000000000400000-0x0000000000C18000-memory.dmp

    Filesize

    8.1MB

  • memory/5040-69-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/5040-67-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/5040-66-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/5040-63-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/5040-10-0x0000000000400000-0x0000000000C18000-memory.dmp

    Filesize

    8.1MB

  • memory/5040-58-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/5040-54-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/5040-52-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/5040-45-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/5040-42-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/5040-41-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/5040-84-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/5040-56-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/5040-49-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/5040-47-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/5040-43-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/5040-8-0x0000000000400000-0x0000000000C18000-memory.dmp

    Filesize

    8.1MB

  • memory/5040-106-0x0000000000400000-0x0000000000C18000-memory.dmp

    Filesize

    8.1MB

  • memory/5040-107-0x0000000010000000-0x000000001003E000-memory.dmp

    Filesize

    248KB

  • memory/5040-7-0x00000000774C4000-0x00000000774C6000-memory.dmp

    Filesize

    8KB