Analysis

  • max time kernel
    140s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-01-2025 15:46

General

  • Target

    408029f0929b11fa51d7bf484ec0fbbcf9d61c309207d3e55ce48c55caf8898b.exe

  • Size

    690KB

  • MD5

    addae446df97b02dfc6bc2e2b52a871d

  • SHA1

    9ee3fd2860fddd48ca8b093cd3e3f169b6bf7a1b

  • SHA256

    408029f0929b11fa51d7bf484ec0fbbcf9d61c309207d3e55ce48c55caf8898b

  • SHA512

    cecafda0e0c4ceccc8e125b1dd42e9794ef67c52f12bcb19c50131f6da212e8e498199426a51e01bcfe455b45e058474c57779753368423ae9fb502eafcc3178

  • SSDEEP

    12288:4sDp2pLNWWstGnb/pbflbrfWsYIzdnqR9OSHuLOj+RH0Djt8t5zyJR84oS:hDALA2NJbrfbxzdnqR9Oguij+6v45zO8

Malware Config

Extracted

Family

bdaejec

C2

ddos.dnsnb8.net

Signatures

  • Bdaejec

    Bdaejec is a backdoor written in C++.

  • Bdaejec family
  • Blackmoon family
  • Blackmoon, KrBanker

    Blackmoon also known as KrBanker is banking trojan first discovered in early 2014.

  • Detect Blackmoon payload 1 IoCs
  • 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\408029f0929b11fa51d7bf484ec0fbbcf9d61c309207d3e55ce48c55caf8898b.exe
    "C:\Users\Admin\AppData\Local\Temp\408029f0929b11fa51d7bf484ec0fbbcf9d61c309207d3e55ce48c55caf8898b.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4580
    • C:\Users\Admin\AppData\Local\Temp\mEJWdQ.exe
      C:\Users\Admin\AppData\Local\Temp\mEJWdQ.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:4688
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\5ecb12f1.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3344

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\5ecb12f1.bat

    Filesize

    187B

    MD5

    59b9df5215c46acd8973715e5f886b02

    SHA1

    dd5dd2bf6119db072d79be7be5ae3a4e2c8850c0

    SHA256

    6eb58356f6d5559550d2d62dc6100ac39b879a458f875b8bd6187e3742b58565

    SHA512

    0511076685e6a936938827c8d7d40181984c5f05ab9f4ddd92a943ecc1c442beaa2442741d709a3de4bf497c0f03128628ea887c31815a14a579b7e3e86ec93a

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

    Filesize

    15KB

    MD5

    56b2c3810dba2e939a8bb9fa36d3cf96

    SHA1

    99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

    SHA256

    4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

    SHA512

    27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

  • memory/4580-0-0x0000000000400000-0x000000000056B000-memory.dmp

    Filesize

    1.4MB

  • memory/4580-7-0x0000000000400000-0x000000000056B000-memory.dmp

    Filesize

    1.4MB

  • memory/4688-4-0x0000000000DA0000-0x0000000000DA9000-memory.dmp

    Filesize

    36KB

  • memory/4688-9-0x0000000000DA0000-0x0000000000DA9000-memory.dmp

    Filesize

    36KB