Analysis

  • max time kernel
    134s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-10-2024 12:03

General

  • Target

    cd8e96c7b461f37c9cd4a3613e2598f398b9507b381f484fbde0e18b14067ddeN.exe

  • Size

    424KB

  • MD5

    410bd0b2a224d98346be14a3d8bc7690

  • SHA1

    494230861d47da01e99fcad063f77912e075f273

  • SHA256

    cd8e96c7b461f37c9cd4a3613e2598f398b9507b381f484fbde0e18b14067dde

  • SHA512

    2de7a93e0355c35204a991fa4d8180ea45960242d9742b08a1ca6d404b363abb7dd6f184c8f07104ebd7bb0e0bbbd961b2ad60a4fd57c068c5050c71f0f6c9b4

  • SSDEEP

    3072:iP/AlO+dsHijwgRtQxPYFCywe0jA7sILipody4rBxfFgJ2Xt+TM+9B0eCkBITFFm:iP/AlOLCjDR+xE57sn7uxJIlBzBzXe

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
  • Adds Run key to start application 2 TTPs 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.

  • Modifies registry class 4 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cd8e96c7b461f37c9cd4a3613e2598f398b9507b381f484fbde0e18b14067ddeN.exe
    "C:\Users\Admin\AppData\Local\Temp\cd8e96c7b461f37c9cd4a3613e2598f398b9507b381f484fbde0e18b14067ddeN.exe"
    1⤵
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:3956
    • C:\Users\Admin\AppData\Local\Temp\WQMZip.exe
      C:\Users\Admin\AppData\Local\Temp\WQMZip.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:1624
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\7a0b0c06.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1504

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\PGH3GSHW\k2[1].rar

    Filesize

    4B

    MD5

    d3b07384d113edec49eaa6238ad5ff00

    SHA1

    f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

    SHA256

    b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

    SHA512

    0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

  • C:\Users\Admin\AppData\Local\Temp\70F9703E.exe

    Filesize

    4B

    MD5

    20879c987e2f9a916e578386d499f629

    SHA1

    c7b33ddcc42361fdb847036fc07e880b81935d5d

    SHA256

    9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

    SHA512

    bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

  • C:\Users\Admin\AppData\Local\Temp\7a0b0c06.bat

    Filesize

    187B

    MD5

    a7fa15c7275300c572b37b8d65a96ee5

    SHA1

    b0777b9d241b0415699f71846005b6c7f3de7a57

    SHA256

    751d87079d4a37b0b935baffb60d6f35bbb4b7cd03307f914cfcabcbb1c10564

    SHA512

    0eb9e9961ad2da573f35224fe6c274646e524cdd4ceb9f3c818e1217ebc8f9aabd6af48f06aa9d18245328523776428ed4b8fc681f0a01e81ba4b73c66872968

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

    Filesize

    15KB

    MD5

    56b2c3810dba2e939a8bb9fa36d3cf96

    SHA1

    99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

    SHA256

    4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

    SHA512

    27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

  • memory/1624-4-0x0000000000E90000-0x0000000000E99000-memory.dmp

    Filesize

    36KB

  • memory/1624-39-0x0000000000E90000-0x0000000000E99000-memory.dmp

    Filesize

    36KB

  • memory/3956-0-0x0000000000070000-0x00000000000DC000-memory.dmp

    Filesize

    432KB

  • memory/3956-41-0x0000000000070000-0x00000000000DC000-memory.dmp

    Filesize

    432KB