Analysis

  • max time kernel
    149s
  • max time network
    110s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250502-en
  • resource tags

    arch:x64arch:x86image:win11-20250502-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    02/07/2025, 03:58

General

  • Target
    bf95db9beb6eca54c5f231260a618a4206a385d4faf5a413e0f858e732a1f0f2.exe
  • Size 440KB
  • Sample250702-ejr9nssm16
  • SHA256 bf95db9beb6eca54c5f231260a618a4206a385d4faf5a413e0f858e732a1f0f2
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Drops startup file 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Enumerates connected drives 3 TTPs 21 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 4 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 62 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3308
      • C:\Users\Admin\AppData\Local\Temp\bf95db9beb6eca54c5f231260a618a4206a385d4faf5a413e0f858e732a1f0f2.exe
        "C:\Users\Admin\AppData\Local\Temp\bf95db9beb6eca54c5f231260a618a4206a385d4faf5a413e0f858e732a1f0f2.exe"
        2⤵
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1252
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a99CF.bat
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:3172
          • C:\Users\Admin\AppData\Local\Temp\bf95db9beb6eca54c5f231260a618a4206a385d4faf5a413e0f858e732a1f0f2.exe
            "C:\Users\Admin\AppData\Local\Temp\bf95db9beb6eca54c5f231260a618a4206a385d4faf5a413e0f858e732a1f0f2.exe"
            4⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            PID:2556
        • C:\Windows\Logo1_.exe
          C:\Windows\Logo1_.exe
          3⤵
          • Drops startup file
          • Executes dropped EXE
          • Enumerates connected drives
          • Drops file in Program Files directory
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:228
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2412
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
              • System Location Discovery: System Language Discovery
              PID:1212

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          setup.exe

          • Path C:\Program Files\Google\Chrome\Application\133.0.6943.60\Installer\setup.exe
          • Size 6.1MB
          • SHA256 113ee02ef6438e8c641c9f44042eaeb57a1a158d634a4c35f190860111520899
          • MD5 SHA1 SHA512 SSDEEP

          $$a99CF.bat

          • Path C:\Users\Admin\AppData\Local\Temp\$$a99CF.bat
          • Size 722B
          • SHA256 ab855d506d959c6413bdae27b6a54d14f56b6d285a8d00a1c47156d0bf6a7f64
          • MD5 SHA1 SHA512

          bf95db9beb6eca54c5f231260a618a4206a385d4faf5a413e0f858e732a1f0f2.exe.exe

          • Path C:\Users\Admin\AppData\Local\Temp\bf95db9beb6eca54c5f231260a618a4206a385d4faf5a413e0f858e732a1f0f2.exe.exe
          • Size 407KB
          • SHA256 a07c8879086b710ef21cb21f5cabdb4740c48dfd3200a3f64dd8dd226bb8c003
          • MD5 SHA1 SHA512 SSDEEP

          Logo1_.exe

          • Path C:\Windows\Logo1_.exe
          • Size 32KB
          • SHA256 5c6ca16525876afba9f88ae6809b550793501ed5c5a73b8a800d4029ff92c98c
          • MD5 SHA1 SHA512 SSDEEP

          _desktop.ini

          • Path F:\$RECYCLE.BIN\S-1-5-21-3518521428-3897247806-4080064211-1000\_desktop.ini
          • Size 8B
          • SHA256 7ee98acf971e32cae894381122352197a76e04e7689903e61cef63ad4f690736
          • MD5 SHA1 SHA512

          memory/228-8-0x0000000000400000-0x0000000000445000-memory.dmp

          memory/228-2388-0x0000000000400000-0x0000000000445000-memory.dmp

          memory/228-2393-0x0000000000400000-0x0000000000445000-memory.dmp

          memory/228-10011-0x0000000000400000-0x0000000000445000-memory.dmp

          memory/1252-0-0x0000000000400000-0x0000000000445000-memory.dmp

          memory/1252-11-0x0000000000400000-0x0000000000445000-memory.dmp