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Analysis

  • max time kernel
    140s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/01/2025, 08:37

General

  • Target

    c5d6c0a69e5fd1c372c39dee82ab4f5ccc3c7b298a18db76f5807fb94154685a.exe

  • Size

    313KB

  • MD5

    9c3ec6b0ddfc4213212948ec3d1aeaac

  • SHA1

    65512cd09b6bdee42ebbbe24ec7844e8a0e6c824

  • SHA256

    c5d6c0a69e5fd1c372c39dee82ab4f5ccc3c7b298a18db76f5807fb94154685a

  • SHA512

    e1201809a89b8826cc19f08e872be5be5fdf10cc41aac448240e839841542ed4c18b297a76e41c999fa05a99cf346a79fcb3add22e78fcff0fb1d1db988e025d

  • SSDEEP

    6144:7qV54oUeSsMY3j0cI8rdYEylF2EHJ8Sj6vzHrh8wDVU3wMs9ZFWW:7qV5dU7oTWKYEEF5J87vzLh8aVJS

Malware Config

Extracted

Family

bdaejec

C2

ddos.dnsnb8.net

Signatures

  • Bdaejec

    Bdaejec is a backdoor written in C++.

  • Bdaejec family
  • Detects Bdaejec Backdoor. 1 IoCs

    Bdaejec is backdoor written in C++.

  • ASPack v2.12-2.42 1 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • UPX packed file 2 IoCs

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

  • 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.

  • Modifies registry class 10 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c5d6c0a69e5fd1c372c39dee82ab4f5ccc3c7b298a18db76f5807fb94154685a.exe
    "C:\Users\Admin\AppData\Local\Temp\c5d6c0a69e5fd1c372c39dee82ab4f5ccc3c7b298a18db76f5807fb94154685a.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1952
    • C:\Users\Admin\AppData\Local\Temp\YrhAsn.exe
      C:\Users\Admin\AppData\Local\Temp\YrhAsn.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:4660
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\4a415a33.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1604

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\FQRZN8O7\k2[1].rar

    Filesize

    4B

    MD5

    d3b07384d113edec49eaa6238ad5ff00

    SHA1

    f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

    SHA256

    b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

    SHA512

    0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

  • C:\Users\Admin\AppData\Local\Temp\3398397E.exe

    Filesize

    4B

    MD5

    20879c987e2f9a916e578386d499f629

    SHA1

    c7b33ddcc42361fdb847036fc07e880b81935d5d

    SHA256

    9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

    SHA512

    bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

  • C:\Users\Admin\AppData\Local\Temp\4a415a33.bat

    Filesize

    187B

    MD5

    fb29c67206059457a1f4e33ffa624ab1

    SHA1

    c01aeff36d2e27a469d47d6f67e20f03dd5433d0

    SHA256

    baf59c09b01c2ba5ed2b344ea0acd79bdb5f95e1d533ea8e2c463266002ab757

    SHA512

    6308625b29658e0ae618cc63843e0b95fa88f3ce3ccac3a7883a6dfc5aae8d1c53749f453e76f88fee28bf62e1c1dca77a20fdf52beb5b847def9daf2c8a5109

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

    Filesize

    15KB

    MD5

    56b2c3810dba2e939a8bb9fa36d3cf96

    SHA1

    99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

    SHA256

    4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

    SHA512

    27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

  • memory/1952-0-0x0000000000400000-0x00000000004D8000-memory.dmp

    Filesize

    864KB

  • memory/1952-7-0x0000000000AD0000-0x0000000000AD1000-memory.dmp

    Filesize

    4KB

  • memory/1952-50-0x0000000000400000-0x00000000004D8000-memory.dmp

    Filesize

    864KB

  • memory/1952-52-0x0000000000AD0000-0x0000000000AD1000-memory.dmp

    Filesize

    4KB

  • memory/4660-4-0x0000000000C80000-0x0000000000C89000-memory.dmp

    Filesize

    36KB

  • memory/4660-48-0x0000000000C80000-0x0000000000C89000-memory.dmp

    Filesize

    36KB