Analysis

  • max time kernel
    140s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-12-2024 02:33

General

  • Target

    2024-12-26_83125ab9dfa745107a71601710d2fbfa_smoke-loader_wapomi.exe

  • Size

    193KB

  • MD5

    83125ab9dfa745107a71601710d2fbfa

  • SHA1

    15e9191aa572f1478f6d4ba4bfbf78c323eb3a5e

  • SHA256

    3720e64a9c7bfd4d158e16924336ae553beb78313657a45d5477142b0693c017

  • SHA512

    dbf678d9a76f85b7fffa57baf21f94757889737ea8f073ee7407622d0d23d231345975e2bcd29730676c43cdc335a8d7e2b567731cb324fc448d08a6119bc989

  • SSDEEP

    6144:F8ToK31I1qZQxU4ouUnnk4LNaj8co7Ns:FHKlYqZQxUiSnkO6I7

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++.

  • Detected Nirsoft tools 1 IoCs

    Free utilities often used by attackers which can steal passwords, product keys, etc.

  • 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
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • 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: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-12-26_83125ab9dfa745107a71601710d2fbfa_smoke-loader_wapomi.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-12-26_83125ab9dfa745107a71601710d2fbfa_smoke-loader_wapomi.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1716
    • C:\Users\Admin\AppData\Local\Temp\hvRVDMP.exe
      C:\Users\Admin\AppData\Local\Temp\hvRVDMP.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:2032
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\5e7e4ef5.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        PID:932

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\5e7e4ef5.bat

    Filesize

    189B

    MD5

    7be98bb47d4950ae58839bc3dd49b00a

    SHA1

    245d0f1d6b12c3503337c808b9fb8cb5486bb4c8

    SHA256

    25a5c0972011944d0264be6e26ba5a132039758a85712e4515d7538f6fc34d02

    SHA512

    e9f8f33a837398bfee4f77bfb8facef184bb7d5c25b7a0d88f1f1109094b50b084445d7cd6177ab0ba7d7d6e1430437e6a301c11131e4b441b839d43357b10b6

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

    Filesize

    15KB

    MD5

    56b2c3810dba2e939a8bb9fa36d3cf96

    SHA1

    99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

    SHA256

    4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

    SHA512

    27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

  • memory/1716-0-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/1716-10-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/2032-4-0x0000000000720000-0x0000000000729000-memory.dmp

    Filesize

    36KB

  • memory/2032-12-0x0000000000720000-0x0000000000729000-memory.dmp

    Filesize

    36KB