Analysis

  • max time kernel
    140s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    30-12-2024 21:48

General

  • Target

    404fac854040dc353931499a4126f52c1800503ecade5a0dc79e726769306374.exe

  • Size

    313KB

  • MD5

    2f879e96d834d51e2fc74710a551bca3

  • SHA1

    7ce7d00b86aaab1dc7798b691b91eb8f67f9b7e3

  • SHA256

    404fac854040dc353931499a4126f52c1800503ecade5a0dc79e726769306374

  • SHA512

    521d2be4496996891464e10df1ec099de4309d4a2cd1016b14bd148dbe12516dc2e036d7c45603cd950867f472217fb08ac986c46387d63c085417e0b97c23ef

  • SSDEEP

    6144:7qV54oUeSsMY3j0cI8rdYEylF2EHJ8Sj6vzHrh8wDVU3wMs9ZFWM:7qV5dU7oTWKYEEF5J87vzLh8aVJS

Malware Config

Extracted

Family

bdaejec

C2

ddos.dnsnb8.net

Signatures

  • Bdaejec

    Bdaejec is a backdoor written in C++.

  • Bdaejec family
  • Detects Bdaejec Backdoor. 2 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
  • UPX packed file 3 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 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\404fac854040dc353931499a4126f52c1800503ecade5a0dc79e726769306374.exe
    "C:\Users\Admin\AppData\Local\Temp\404fac854040dc353931499a4126f52c1800503ecade5a0dc79e726769306374.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1904
    • C:\Users\Admin\AppData\Local\Temp\VfmHoY.exe
      C:\Users\Admin\AppData\Local\Temp\VfmHoY.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1900
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\3d3a11d2.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2424

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\3d3a11d2.bat

    Filesize

    187B

    MD5

    f96887163553e837aa440a16ecc2d0c3

    SHA1

    e30771a0dee771aecd85f338858df1e450264017

    SHA256

    1a46357bf68f01dcfe24c9618b42f922069dcecbbb57b4372d6221d13dc4bafa

    SHA512

    5e4a854ec16a19de9d4ef88722864580977e0c35d5e1b71d78e6a77febcbb956c2c05fe47f37301e120d62a9f53805dc52f3bc1e3b087b525a9e628984a94204

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

    Filesize

    15KB

    MD5

    56b2c3810dba2e939a8bb9fa36d3cf96

    SHA1

    99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

    SHA256

    4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

    SHA512

    27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

  • memory/1900-12-0x0000000000CA0000-0x0000000000CA9000-memory.dmp

    Filesize

    36KB

  • memory/1900-19-0x0000000000CA0000-0x0000000000CA9000-memory.dmp

    Filesize

    36KB

  • memory/1904-17-0x0000000000400000-0x00000000004D8000-memory.dmp

    Filesize

    864KB

  • memory/1904-14-0x00000000003B0000-0x00000000003B1000-memory.dmp

    Filesize

    4KB

  • memory/1904-9-0x0000000000400000-0x00000000004D8000-memory.dmp

    Filesize

    864KB

  • memory/1904-10-0x00000000003B0000-0x00000000003B9000-memory.dmp

    Filesize

    36KB

  • memory/1904-18-0x0000000000400000-0x00000000004D8000-memory.dmp

    Filesize

    864KB

  • memory/1904-20-0x00000000003B0000-0x00000000003B1000-memory.dmp

    Filesize

    4KB

  • memory/1904-33-0x00000000003B0000-0x00000000003B9000-memory.dmp

    Filesize

    36KB

  • memory/1904-34-0x00000000003B0000-0x00000000003B9000-memory.dmp

    Filesize

    36KB

  • memory/1904-11-0x00000000003B0000-0x00000000003B9000-memory.dmp

    Filesize

    36KB