Analysis

  • max time kernel
    106s
  • 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
    28-12-2024 17:44

General

  • Target

    605a6965f55929b5f7e9b0f00dd75f2fc6376d851b7205f3457ad04e0cf9837c.exe

  • Size

    12.0MB

  • MD5

    699f7da8a2c3eb571a6b702db670bb87

  • SHA1

    dc4483f3ca882c676f094e34f15c6aa14bb92f62

  • SHA256

    605a6965f55929b5f7e9b0f00dd75f2fc6376d851b7205f3457ad04e0cf9837c

  • SHA512

    5e36efc7a7734a024b790d42be644d4cab4cdc589f3566f4601e65c6123c03533ad6bef5f5e9c8a15944d0de9f409d30f60760fb3b57b2c3b7ed5dc6b2af2bf5

  • SSDEEP

    49152:s/KE1ld3/wAyJxVZp2bnbJ5eA+zuFTCTMqQ:s/KU9/pyJx9Y5elK0T

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

  • 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 AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\605a6965f55929b5f7e9b0f00dd75f2fc6376d851b7205f3457ad04e0cf9837c.exe
    "C:\Users\Admin\AppData\Local\Temp\605a6965f55929b5f7e9b0f00dd75f2fc6376d851b7205f3457ad04e0cf9837c.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:988
    • C:\Users\Admin\AppData\Local\Temp\XUOVtr.exe
      C:\Users\Admin\AppData\Local\Temp\XUOVtr.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:4068
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\26d249cd.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2396

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\26d249cd.bat

    Filesize

    187B

    MD5

    83d6780d39f56a50e62a337a8a52457a

    SHA1

    56c497d2b0b5b353b4d4d0892d7f5a11d8bf2c13

    SHA256

    3e18437c51f349d0e5b37e2ca8e1d3a7119abc7e5c796b508e3ec1ea127eb423

    SHA512

    81e3b146acb3513f3d3959a2a093c67e5dd3b5afdf149135f5f9815b204426cdd521dde4edea54d2c42aae837d98e821be025a7f43ce27fc2d292d6595ac8391

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

    Filesize

    15KB

    MD5

    56b2c3810dba2e939a8bb9fa36d3cf96

    SHA1

    99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

    SHA256

    4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

    SHA512

    27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

  • memory/988-4-0x0000000000950000-0x00000000015B1000-memory.dmp

    Filesize

    12.4MB

  • memory/988-8-0x00000000033A0000-0x00000000034A0000-memory.dmp

    Filesize

    1024KB

  • memory/988-9-0x0000000000950000-0x00000000015B1000-memory.dmp

    Filesize

    12.4MB

  • memory/988-11-0x00000000033A0000-0x00000000034A0000-memory.dmp

    Filesize

    1024KB

  • memory/4068-6-0x00000000001F0000-0x00000000001F9000-memory.dmp

    Filesize

    36KB

  • memory/4068-10-0x00000000001F0000-0x00000000001F9000-memory.dmp

    Filesize

    36KB