Analysis

  • max time kernel
    153s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/06/2024, 00:48

General

  • Target
    39fd180899579cf3057b738618f60fda49c1a3d0f5efcc61503c2cabcf7ebc63.exe
  • Size 311KB
  • Sample240613-a5q7aa1fpp
  • SHA256 39fd180899579cf3057b738618f60fda49c1a3d0f5efcc61503c2cabcf7ebc63
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Modifies file permissions 1 TTPs 1 IoCs
  • 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 20 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3356
      • C:\Users\Admin\AppData\Local\Temp\39fd180899579cf3057b738618f60fda49c1a3d0f5efcc61503c2cabcf7ebc63.exe
        "C:\Users\Admin\AppData\Local\Temp\39fd180899579cf3057b738618f60fda49c1a3d0f5efcc61503c2cabcf7ebc63.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:940
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$aEEB5.bat
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2056
          • C:\Users\Admin\AppData\Local\Temp\39fd180899579cf3057b738618f60fda49c1a3d0f5efcc61503c2cabcf7ebc63.exe
            "C:\Users\Admin\AppData\Local\Temp\39fd180899579cf3057b738618f60fda49c1a3d0f5efcc61503c2cabcf7ebc63.exe"
            4⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:1016
            • C:\Windows\system32\icacls.exe
              C:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M
              5⤵
              • Modifies file permissions
              PID:1864
        • C:\Windows\Logo1_.exe
          C:\Windows\Logo1_.exe
          3⤵
          • 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:4476
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:2616
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
                PID:5108
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4092 --field-trial-handle=2256,i,6670388345726423024,18382795228658886258,262144 --variations-seed-version /prefetch:8
        1⤵
          PID:3748

        Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

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              Downloads

              StartPing.exe

              • Path C:\Program Files\StartPing.exe
              • Size 317KB
              • SHA256 2b95ee4d696379c164efec13ff7cc7448c50bd5ea2bacde0a7d42271e3751e01
              • MD5 SHA1 SHA512 SSDEEP

              $$aEEB5.bat

              • Path C:\Users\Admin\AppData\Local\Temp\$$aEEB5.bat
              • Size 722B
              • SHA256 f2dab2c3d52fcf3e6a161f75adf9b10a0217307ebbf6ab332f712b3ee3523999
              • MD5 SHA1 SHA512

              39fd180899579cf3057b738618f60fda49c1a3d0f5efcc61503c2cabcf7ebc63.exe.exe

              • Path C:\Users\Admin\AppData\Local\Temp\39fd180899579cf3057b738618f60fda49c1a3d0f5efcc61503c2cabcf7ebc63.exe.exe
              • Size 285KB
              • SHA256 83150431ba93a3eae977671a29a831f5497e867d6e0a8e596daee28161056015
              • MD5 SHA1 SHA512 SSDEEP

              Logo1_.exe

              • Path C:\Windows\Logo1_.exe
              • Size 26KB
              • SHA256 9ae41c38185c7f4a0717c654eb3a7877aecf41743ec7dfe013e5b21c9012c2eb
              • MD5 SHA1 SHA512 SSDEEP

              _desktop.ini

              • Path F:\$RECYCLE.BIN\S-1-5-21-3808065738-1666277613-1125846146-1000\_desktop.ini
              • Size 9B
              • SHA256 47a22297ce31d17b0f37251ce63cf2eb146700451caab6dd0aa710d2526c8e42
              • MD5 SHA1 SHA512

              memory/940-0-0x0000000000400000-0x0000000000434000-memory.dmp

              memory/940-1-0x0000000000400000-0x0000000000434000-memory.dmp

              memory/940-14-0x0000000000400000-0x0000000000434000-memory.dmp

              memory/1016-23-0x000001CF8CD20000-0x000001CF8CF90000-memory.dmp

              memory/1016-40-0x000001CF8B500000-0x000001CF8B501000-memory.dmp

              memory/1016-42-0x000001CF8B500000-0x000001CF8B501000-memory.dmp

              memory/1016-43-0x000001CF8CD20000-0x000001CF8CF90000-memory.dmp

              memory/4476-20-0x0000000000400000-0x0000000000434000-memory.dmp

              memory/4476-38-0x0000000000400000-0x0000000000434000-memory.dmp

              memory/4476-49-0x0000000000400000-0x0000000000434000-memory.dmp

              memory/4476-53-0x0000000000400000-0x0000000000434000-memory.dmp

              memory/4476-58-0x0000000000400000-0x0000000000434000-memory.dmp

              memory/4476-10-0x0000000000400000-0x0000000000434000-memory.dmp

              memory/4476-1198-0x0000000000400000-0x0000000000434000-memory.dmp