Analysis

  • max time kernel
    141s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    25-12-2024 08:54

General

  • Target

    2a444f6d6c672b051ef24e95516126198fef7bda4dd2789e87d1531eb02d04d9.exe

  • Size

    676KB

  • MD5

    8a7cf6433ebacb67ecd52e5c8f465673

  • SHA1

    8f8971d8d29725a488fb39ea18c01219df9b99d8

  • SHA256

    2a444f6d6c672b051ef24e95516126198fef7bda4dd2789e87d1531eb02d04d9

  • SHA512

    bf6c3f3ff9ab6eb24d0a25f5a0553ce7ba75cb566bd485ddee46c78463b9f395e75b6f54b33f8decefcfdf36d1b51482a9b0db60d6c9cddde6078e6963925da9

  • SSDEEP

    12288:yv0RfBk0ocABJZyzwMnQKLJp+o7sT4SO06jJzR9VCZagskGgEHqhK80N:EyfBk0lqJszjnV93Sa7VIpNGzHqopN

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

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 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.

  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2a444f6d6c672b051ef24e95516126198fef7bda4dd2789e87d1531eb02d04d9.exe
    "C:\Users\Admin\AppData\Local\Temp\2a444f6d6c672b051ef24e95516126198fef7bda4dd2789e87d1531eb02d04d9.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:2296
    • C:\Users\Admin\AppData\Local\Temp\kNBcNV.exe
      C:\Users\Admin\AppData\Local\Temp\kNBcNV.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1704
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\01c87633.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2700

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\LW44N8OS\k2[1].rar

    Filesize

    4B

    MD5

    d3b07384d113edec49eaa6238ad5ff00

    SHA1

    f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

    SHA256

    b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

    SHA512

    0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

  • C:\Users\Admin\AppData\Local\Temp\01c87633.bat

    Filesize

    187B

    MD5

    e77eae33abdf1e0c4138671e399bc01f

    SHA1

    1fc59e0fe00f6eab17a85725332d6ef58cc88ad8

    SHA256

    871cd06b7cc7cf0bcc0fa0a5ed7e4907592fffb8991b8b3c10f73854fcec8778

    SHA512

    9b400da67aeb1cb1788e1caa81db427bf29907c757766facb31aaa0580540751743c5a6b41b5c756f3ad9d5206657b4bdad6b16248d09893314d2005d9372197

  • C:\Users\Admin\AppData\Local\Temp\0C5657CB.exe

    Filesize

    4B

    MD5

    20879c987e2f9a916e578386d499f629

    SHA1

    c7b33ddcc42361fdb847036fc07e880b81935d5d

    SHA256

    9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

    SHA512

    bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

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

    Filesize

    15KB

    MD5

    56b2c3810dba2e939a8bb9fa36d3cf96

    SHA1

    99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

    SHA256

    4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

    SHA512

    27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

  • memory/1704-10-0x0000000000AA0000-0x0000000000AA9000-memory.dmp

    Filesize

    36KB

  • memory/1704-42-0x0000000000AA0000-0x0000000000AA9000-memory.dmp

    Filesize

    36KB

  • memory/2296-0-0x0000000000E30000-0x0000000000FE5000-memory.dmp

    Filesize

    1.7MB

  • memory/2296-4-0x0000000000AA0000-0x0000000000AA9000-memory.dmp

    Filesize

    36KB

  • memory/2296-44-0x0000000000E30000-0x0000000000FE5000-memory.dmp

    Filesize

    1.7MB

  • memory/2296-52-0x0000000000AA0000-0x0000000000AA9000-memory.dmp

    Filesize

    36KB