Analysis

  • max time kernel
    144s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    28-12-2024 17:44

General

  • Target

    f20cd66961b45d63540527201158e386fd41139e53bbbf032acc60ac4774f38c.exe

  • Size

    12.0MB

  • MD5

    4b137f312a7728304f9f9f31bdc044bf

  • SHA1

    a7329f07aa7197348c744bc665fe78df5c3aa83f

  • SHA256

    f20cd66961b45d63540527201158e386fd41139e53bbbf032acc60ac4774f38c

  • SHA512

    afde317aa4c4ce4d6f143712df448b0dea5009cb50538c7e80e6688409122a51ab413a1bc51d1bf3b3c752c602e51823f1363b109f31f902e9e7c8d445072743

  • SSDEEP

    49152:s/KE1ld3/wAyJxVZp2bnbJ5eA+z1FTCTMqQ:s/KU9/pyJx9Y5elZ0T

Malware Config

Extracted

Family

bdaejec

C2

ddos.dnsnb8.net

Signatures

  • Bdaejec

    Bdaejec is a backdoor written in C++.

  • Bdaejec family
  • Detects Bdaejec Backdoor. 2 IoCs

    Bdaejec is backdoor written in C++.

  • ASPack v2.12-2.42 1 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 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 AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f20cd66961b45d63540527201158e386fd41139e53bbbf032acc60ac4774f38c.exe
    "C:\Users\Admin\AppData\Local\Temp\f20cd66961b45d63540527201158e386fd41139e53bbbf032acc60ac4774f38c.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1796
    • C:\Users\Admin\AppData\Local\Temp\JfCFjy.exe
      C:\Users\Admin\AppData\Local\Temp\JfCFjy.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2080
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\75366acd.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2532

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\75366acd.bat

    Filesize

    187B

    MD5

    58094104c858cbf78963cd3270445029

    SHA1

    9c1d8404c52e235f9734b20f0d3bdaffe3031659

    SHA256

    1c40ea8673a2586b06a65e51c1f0e17cf168af2915b4108fe473ed3b653df6a9

    SHA512

    f15a54979eed905f4d378398da4a691be23e23274ed25b6f107f1a38932abcd395bb885424e465e1b9792ec27525ba308a7d083418f251a2622c0d25a27387de

  • \Users\Admin\AppData\Local\Temp\JfCFjy.exe

    Filesize

    15KB

    MD5

    56b2c3810dba2e939a8bb9fa36d3cf96

    SHA1

    99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

    SHA256

    4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

    SHA512

    27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

  • memory/1796-13-0x0000000000B30000-0x0000000000B39000-memory.dmp

    Filesize

    36KB

  • memory/1796-11-0x0000000000B30000-0x0000000000B39000-memory.dmp

    Filesize

    36KB

  • memory/1796-9-0x00000000011A0000-0x0000000001E01000-memory.dmp

    Filesize

    12.4MB

  • memory/1796-15-0x0000000000A10000-0x0000000000B10000-memory.dmp

    Filesize

    1024KB

  • memory/1796-17-0x00000000011A0000-0x0000000001E01000-memory.dmp

    Filesize

    12.4MB

  • memory/1796-19-0x0000000000A10000-0x0000000000B10000-memory.dmp

    Filesize

    1024KB

  • memory/1796-26-0x0000000000B30000-0x0000000000B39000-memory.dmp

    Filesize

    36KB

  • memory/1796-28-0x0000000000B30000-0x0000000000B39000-memory.dmp

    Filesize

    36KB

  • memory/2080-12-0x0000000000B30000-0x0000000000B39000-memory.dmp

    Filesize

    36KB

  • memory/2080-18-0x0000000000B30000-0x0000000000B39000-memory.dmp

    Filesize

    36KB