Analysis

  • max time kernel
    149s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/05/2024, 15:13

General

  • Target
    fb795d8c177e42a55ceace9cd9bded078559a91935db1e6422318f55ed45855f.exe
  • Size 103KB
  • Sample240527-sl3ebahf52
  • SHA256 fb795d8c177e42a55ceace9cd9bded078559a91935db1e6422318f55ed45855f
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10

Malware Config

Signatures

  • Drops startup file 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Reads user/profile data of web browsers 2 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
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3564
      • C:\Users\Admin\AppData\Local\Temp\fb795d8c177e42a55ceace9cd9bded078559a91935db1e6422318f55ed45855f.exe
        "C:\Users\Admin\AppData\Local\Temp\fb795d8c177e42a55ceace9cd9bded078559a91935db1e6422318f55ed45855f.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:3096
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1804
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
              PID:1424
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a53BD.bat
            3⤵
              PID:4792
              • C:\Users\Admin\AppData\Local\Temp\fb795d8c177e42a55ceace9cd9bded078559a91935db1e6422318f55ed45855f.exe
                "C:\Users\Admin\AppData\Local\Temp\fb795d8c177e42a55ceace9cd9bded078559a91935db1e6422318f55ed45855f.exe"
                4⤵
                • Executes dropped EXE
                PID:3184
            • 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
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:4472
              • C:\Windows\SysWOW64\net.exe
                net stop "Kingsoft AntiVirus Service"
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:2456
                • C:\Windows\SysWOW64\net1.exe
                  C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                  5⤵
                    PID:4580
                • C:\Windows\SysWOW64\net.exe
                  net stop "Kingsoft AntiVirus Service"
                  4⤵
                  • Suspicious use of WriteProcessMemory
                  PID:744
                  • C:\Windows\SysWOW64\net1.exe
                    C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                    5⤵
                      PID:4932

            Network

                  MITRE ATT&CK Enterprise v15

                  Replay Monitor

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                  Downloads

                  GoogleUpdateCore.exe

                  • Path C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateCore.exe
                  • Size 258KB
                  • SHA256 666ca0e926bc557503309ada0633c33844d0feb048c815c503f381a0bf6ebddc
                  • MD5 SHA1 SHA512 SSDEEP

                  7z.exe

                  • Path C:\Program Files\7-Zip\7z.exe
                  • Size 577KB
                  • SHA256 07481182a1f0952663948dc601a4532f1ed257cb853bc032c0557173040e995c
                  • MD5 SHA1 SHA512 SSDEEP

                  windowsdesktop-runtime-8.0.2-win-x64.exe

                  • Path C:\ProgramData\Package Cache\{63880b41-04fc-4f9b-92c4-4455c255eb8c}\windowsdesktop-runtime-8.0.2-win-x64.exe
                  • Size 643KB
                  • SHA256 10579b661dade8697f252204f241952eb2029ea6978165f9336fd60a72b3205e
                  • MD5 SHA1 SHA512 SSDEEP

                  $$a53BD.bat

                  • Path C:\Users\Admin\AppData\Local\Temp\$$a53BD.bat
                  • Size 722B
                  • SHA256 1bcbeabeb5ca8f19d3ea576a09a5d41cb93d6e5cea225865356b52318c18dceb
                  • MD5 SHA1 SHA512

                  fb795d8c177e42a55ceace9cd9bded078559a91935db1e6422318f55ed45855f.exe.exe

                  • Path C:\Users\Admin\AppData\Local\Temp\fb795d8c177e42a55ceace9cd9bded078559a91935db1e6422318f55ed45855f.exe.exe
                  • Size 69KB
                  • SHA256 36ddf3bc7794be9a73cb0a60f0575b91dcf451d9238db0f8d0b9987ab59ec32b
                  • MD5 SHA1 SHA512 SSDEEP

                  Logo1_.exe

                  • Path C:\Windows\Logo1_.exe
                  • Size 33KB
                  • SHA256 3e02caf1f845080b75cf865164adfa1c4855d5b6cab6af1664a97c37f3bab646
                  • MD5 SHA1 SHA512 SSDEEP

                  _desktop.ini

                  • Path F:\$RECYCLE.BIN\S-1-5-21-1337824034-2731376981-3755436523-1000\_desktop.ini
                  • Size 9B
                  • SHA256 968b715c081472526487d60da8968e9b3bde2dac103f69beb3f6abe6ef7bc191
                  • MD5 SHA1 SHA512

                  memory/3096-9-0x0000000000400000-0x000000000043D000-memory.dmp

                  memory/3096-0-0x0000000000400000-0x000000000043D000-memory.dmp

                  memory/4472-11-0x0000000000400000-0x000000000043D000-memory.dmp

                  memory/4472-5176-0x0000000000400000-0x000000000043D000-memory.dmp

                  memory/4472-18-0x0000000000400000-0x000000000043D000-memory.dmp

                  memory/4472-8635-0x0000000000400000-0x000000000043D000-memory.dmp