Analysis

  • max time kernel
    140s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    01-01-2025 14:41

General

  • Target

    a387a5fccd194617e1a649830da9be2f38ecab5135c7d60e84802696275bffa7.exe

  • Size

    1.6MB

  • MD5

    8a2569376394187c5f4bf586ddbd26b9

  • SHA1

    2c43557cd605431f9d78153b8430cab25f3ab104

  • SHA256

    a387a5fccd194617e1a649830da9be2f38ecab5135c7d60e84802696275bffa7

  • SHA512

    dfb41641f5c6f7da4bf540202c9b286db45bd7bfe04058b098088cf2971bb5a3e097d37b8fd22d42d528fdd07d210ff3f0b43badca580b9b8957a0d9c302b056

  • SSDEEP

    24576:hbzujSc7XTwRqofD9kwvbkzbLB/FzeFwYcYtnH4yC0iS4McS8XkkjYvW:hGjSc7DJYmwjiN1rYtnYVS4MMXfjYvW

Malware Config

Extracted

Family

bdaejec

C2

ddos.dnsnb8.net

Signatures

  • Bdaejec

    Bdaejec is a backdoor written in C++.

  • Bdaejec family
  • Blackmoon family
  • Blackmoon, KrBanker

    Blackmoon also known as KrBanker is banking trojan first discovered in early 2014.

  • Detect Blackmoon payload 1 IoCs
  • 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a387a5fccd194617e1a649830da9be2f38ecab5135c7d60e84802696275bffa7.exe
    "C:\Users\Admin\AppData\Local\Temp\a387a5fccd194617e1a649830da9be2f38ecab5135c7d60e84802696275bffa7.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2368
    • C:\Users\Admin\AppData\Local\Temp\ASclmh.exe
      C:\Users\Admin\AppData\Local\Temp\ASclmh.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2132
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\58422c99.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2768

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\58422c99.bat

    Filesize

    187B

    MD5

    fbf36f8d6a38ba8102a5f0a24e6e4064

    SHA1

    bf6742aa32912a883fd12d93129f1fc525d67b87

    SHA256

    6624dc6ae1d4e23a58b44efcecf6eada4b6553d79c50c653284048e4dd596a62

    SHA512

    d9ee8e4d3e4fc110830c58576396df905329cc694eae0f86b808cbbbd67ac9f5f7e1a6a95adf39b921c410631da853c09f7a475ecb83ca6e46d8aa7f7cac9204

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

    Filesize

    15KB

    MD5

    56b2c3810dba2e939a8bb9fa36d3cf96

    SHA1

    99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

    SHA256

    4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

    SHA512

    27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

  • memory/2132-12-0x0000000000F30000-0x0000000000F39000-memory.dmp

    Filesize

    36KB

  • memory/2132-30-0x0000000000F30000-0x0000000000F39000-memory.dmp

    Filesize

    36KB

  • memory/2368-0-0x0000000000400000-0x0000000000B11000-memory.dmp

    Filesize

    7.1MB

  • memory/2368-11-0x0000000000220000-0x0000000000229000-memory.dmp

    Filesize

    36KB

  • memory/2368-10-0x0000000000220000-0x0000000000229000-memory.dmp

    Filesize

    36KB

  • memory/2368-32-0x0000000000400000-0x0000000000B11000-memory.dmp

    Filesize

    7.1MB

  • memory/2368-42-0x0000000000220000-0x0000000000229000-memory.dmp

    Filesize

    36KB

  • memory/2368-41-0x0000000000220000-0x0000000000229000-memory.dmp

    Filesize

    36KB