Analysis

  • max time kernel
    106s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-12-2024 23:21

General

  • Target

    2024-12-04_2331e3f63fe157a39a94d3b621a499cc_smoke-loader_wapomi.exe

  • Size

    72KB

  • MD5

    2331e3f63fe157a39a94d3b621a499cc

  • SHA1

    fe82001f39c4c2823f970650781182f590132baf

  • SHA256

    9648f9ab617ed4162cc97deaa3f57f98637f62a66177819b9061dfde0abd3dba

  • SHA512

    aee57288342093b5f53e2748428aeb7ff0e5070b6cfec1c8ec61a4c3814668a440e704ca8e157b68fd6863ddff063ec2af93f0be4b0284b6e4e2333ec2fa6990

  • SSDEEP

    768:z+rYHP1R4UWUbaXOYlc1nGkJbaeyV7vRwq3EuJatty3QGPL4vzZq2o9W7GsxBbPr:z+TKbkDlaGkJbaegX5AttyAGCq2iW7z

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\2024-12-04_2331e3f63fe157a39a94d3b621a499cc_smoke-loader_wapomi.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-12-04_2331e3f63fe157a39a94d3b621a499cc_smoke-loader_wapomi.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4440
    • C:\Users\Admin\AppData\Local\Temp\HOU.exe
      C:\Users\Admin\AppData\Local\Temp\HOU.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:4372
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\603043e7.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2712

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\603043e7.bat

    Filesize

    181B

    MD5

    44814ed67f3b657099da998e0b4d7258

    SHA1

    37d606b5c14e0013003b67264afe928ce3332c9b

    SHA256

    d6b5275fa2611b86c29a04dc4ae7819b196aee5225fe28b7f2684e6c89b7b4d0

    SHA512

    8fbf000e690fda54365f0cfb65bf291ef1502b9633e8702f05a80510d71f68a289a961153f1e00cb81272d9759868d207c5a283da1c7a29a520bc52b323e112d

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

    Filesize

    15KB

    MD5

    56b2c3810dba2e939a8bb9fa36d3cf96

    SHA1

    99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

    SHA256

    4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

    SHA512

    27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

  • memory/4372-4-0x0000000000760000-0x0000000000769000-memory.dmp

    Filesize

    36KB

  • memory/4372-8-0x0000000000760000-0x0000000000769000-memory.dmp

    Filesize

    36KB

  • memory/4440-0-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/4440-7-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB