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Analysis

  • max time kernel
    106s
  • max time network
    103s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/12/2024, 17:46

General

  • Target

    ec4eb4f1f018d18e8e143e35fd930793ce43ba7f7336ac3dd529b715cd881854.exe

  • Size

    510KB

  • MD5

    f786dd4800f09abe67a76b18fe7a482d

  • SHA1

    a8afd8254553f6394f79ffe28280143e7cfa19e3

  • SHA256

    ec4eb4f1f018d18e8e143e35fd930793ce43ba7f7336ac3dd529b715cd881854

  • SHA512

    353609aef28d65f34a2c06eb9c72122123084c0fc9b8bed2708f8c4202ade1c7c355b27ac22b35f20ae496f46d242dd0ab17ebe4b35a9b4d8c70dcb703044253

  • SSDEEP

    12288:deO4ivVb83+hs/c8NViqI4+EiZVeRrs7ngjK8JxddvxDcMGk4J2M0Tf:L4Wdhs/tmV4+EjXKsgMGk4J/0Tf

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
  • 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 WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ec4eb4f1f018d18e8e143e35fd930793ce43ba7f7336ac3dd529b715cd881854.exe
    "C:\Users\Admin\AppData\Local\Temp\ec4eb4f1f018d18e8e143e35fd930793ce43ba7f7336ac3dd529b715cd881854.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2872
    • C:\Users\Admin\AppData\Local\Temp\qSzcQM.exe
      C:\Users\Admin\AppData\Local\Temp\qSzcQM.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:3656
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\2f4e30b6.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2988

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\2f4e30b6.bat

    Filesize

    187B

    MD5

    25a85ee331190a0cab2174d681790c7f

    SHA1

    1dee0776e12340b36f6422c3a826c52bf2629f6f

    SHA256

    cc6f057236f6c1b23870b58a780129746dee7970f813d48908b333a34f83eda1

    SHA512

    1b67dff5b783d8753286bd9bc2826d0f91c1a37e7d9ecdcbbf59f0a14dcee757c322cadd7592e5e8fc4a1cfbbddb6a75f0e93aa7165b9b5e08b04027e14a8f9f

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

    Filesize

    15KB

    MD5

    56b2c3810dba2e939a8bb9fa36d3cf96

    SHA1

    99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

    SHA256

    4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

    SHA512

    27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

  • memory/2872-0-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/2872-8-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/3656-4-0x0000000000180000-0x0000000000189000-memory.dmp

    Filesize

    36KB

  • memory/3656-9-0x0000000000180000-0x0000000000189000-memory.dmp

    Filesize

    36KB