Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/02/2025, 04:58

General

  • Target

    2025-02-24_9a5f791f20c3197d9eebf4d59b9be4e7_bkransomware_wapomi.exe

  • Size

    215KB

  • MD5

    9a5f791f20c3197d9eebf4d59b9be4e7

  • SHA1

    7d233c80c590b230be208e91f7248dfeaa8a82d5

  • SHA256

    d3eac47e72da4cb6b2a10a088f84616401f6ccb68d9cbaa38f857a9f13adef62

  • SHA512

    f48ca46356d990a0ffff22c1aa902459f99d84eeb7a988eb3626590a256e5008460435dc796f8ba8cfe6b62f8b7c0b747fdb4b815354c8c3d1cb05d0497f8e7a

  • SSDEEP

    3072:R666SmGgfYMSLpt690O4EHIsxeqvrvuSUdybQHoAw3MVDdVY3KRGCH:R2SSI60OhHLjv1nt3KE

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\2025-02-24_9a5f791f20c3197d9eebf4d59b9be4e7_bkransomware_wapomi.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-02-24_9a5f791f20c3197d9eebf4d59b9be4e7_bkransomware_wapomi.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2180
    • C:\Users\Admin\AppData\Local\Temp\pEmDRz.exe
      C:\Users\Admin\AppData\Local\Temp\pEmDRz.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:3948
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\6d2942c2.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2624

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\6d2942c2.bat

    Filesize

    187B

    MD5

    bdffe0db05b928d0e9fe4e10623d400e

    SHA1

    ddd247c138a5da76653605bf58aa212603a4eee6

    SHA256

    72ffc884b8c937c9e82396b30dceb19823c243ab1682bfd5409c480efd7c2662

    SHA512

    fbbb10a4053e64d5856707d90f05641fde2daebab57de1c4c76c01d335d24b16638075df9774af8c68cdcd7298d0c54b5032c058b29fff3ef23aeb6f0e03f4d7

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

    Filesize

    15KB

    MD5

    56b2c3810dba2e939a8bb9fa36d3cf96

    SHA1

    99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

    SHA256

    4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

    SHA512

    27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

  • memory/2180-0-0x0000000000230000-0x000000000026C000-memory.dmp

    Filesize

    240KB

  • memory/2180-6-0x0000000000230000-0x000000000026C000-memory.dmp

    Filesize

    240KB

  • memory/3948-4-0x0000000000F20000-0x0000000000F29000-memory.dmp

    Filesize

    36KB

  • memory/3948-8-0x0000000000F20000-0x0000000000F29000-memory.dmp

    Filesize

    36KB