Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/06/2024, 14:51

General

  • Target
    79b4349dc1e4ecfe5a29eccd2e4ce891e4af5c743ad063b88eaeb492716d1aa1.exe
  • Size 225KB
  • Sample240603-r8a3xabc69
  • SHA256 79b4349dc1e4ecfe5a29eccd2e4ce891e4af5c743ad063b88eaeb492716d1aa1
  • 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 29 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3356
      • C:\Users\Admin\AppData\Local\Temp\79b4349dc1e4ecfe5a29eccd2e4ce891e4af5c743ad063b88eaeb492716d1aa1.exe
        "C:\Users\Admin\AppData\Local\Temp\79b4349dc1e4ecfe5a29eccd2e4ce891e4af5c743ad063b88eaeb492716d1aa1.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1476
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1248
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
              PID:1656
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$aB3DF.bat
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:3932
            • C:\Users\Admin\AppData\Local\Temp\79b4349dc1e4ecfe5a29eccd2e4ce891e4af5c743ad063b88eaeb492716d1aa1.exe
              "C:\Users\Admin\AppData\Local\Temp\79b4349dc1e4ecfe5a29eccd2e4ce891e4af5c743ad063b88eaeb492716d1aa1.exe"
              4⤵
              • Executes dropped EXE
              PID:4940
          • 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:3860
            • C:\Windows\SysWOW64\net.exe
              net stop "Kingsoft AntiVirus Service"
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:3600
              • C:\Windows\SysWOW64\net1.exe
                C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                5⤵
                  PID:4876
              • C:\Windows\SysWOW64\net.exe
                net stop "Kingsoft AntiVirus Service"
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:1352
                • C:\Windows\SysWOW64\net1.exe
                  C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                  5⤵
                    PID:2856
          • 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=4068 --field-trial-handle=2256,i,6670388345726423024,18382795228658886258,262144 --variations-seed-version /prefetch:8
            1⤵
              PID:3320

            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 cd9b6b425d624455491f2ecded3dd2eb9ea18a9a01a9e7024a7265b913cfb3f4
                  • MD5 SHA1 SHA512 SSDEEP

                  StartPing.exe

                  • Path C:\Program Files\StartPing.exe
                  • Size 324KB
                  • SHA256 6ef85658a6ef33353dce0f3761340b0d94c6aae8ebfa8e0615fb7843ad97be4d
                  • MD5 SHA1 SHA512 SSDEEP

                  vcredist_x86.exe

                  • Path C:\ProgramData\Package Cache\{61087a79-ac85-455c-934d-1fa22cc64f36}\vcredist_x86.exe
                  • Size 488KB
                  • SHA256 d51354447034e0374f2596da08118c1ffc638945cca8bbf623f8a9ef1fbd3440
                  • MD5 SHA1 SHA512 SSDEEP

                  $$aB3DF.bat

                  • Path C:\Users\Admin\AppData\Local\Temp\$$aB3DF.bat
                  • Size 722B
                  • SHA256 24ed3ab42c84a17894c32ee908df840f38ecbfcb9bc157bfbc0ccd38d8b3fb7a
                  • MD5 SHA1 SHA512

                  79b4349dc1e4ecfe5a29eccd2e4ce891e4af5c743ad063b88eaeb492716d1aa1.exe.exe

                  • Path C:\Users\Admin\AppData\Local\Temp\79b4349dc1e4ecfe5a29eccd2e4ce891e4af5c743ad063b88eaeb492716d1aa1.exe.exe
                  • Size 191KB
                  • SHA256 52def964142be6891054d2f95256a3b05d66887964fcd66b34abfe32477e8965
                  • MD5 SHA1 SHA512 SSDEEP

                  Logo1_.exe

                  • Path C:\Windows\Logo1_.exe
                  • Size 33KB
                  • SHA256 4836226708703a884cbf785b4d4f10d3042daac184de30a47263d47c9f31c9b4
                  • MD5 SHA1 SHA512 SSDEEP

                  _desktop.ini

                  • Path F:\$RECYCLE.BIN\S-1-5-21-3808065738-1666277613-1125846146-1000\_desktop.ini
                  • Size 8B
                  • SHA256 d9d875805581110dafdfb2ceb34c5e60f50fe720963f9813c287e4845248d208
                  • MD5 SHA1 SHA512

                  memory/1476-10-0x0000000000400000-0x0000000000440000-memory.dmp

                  memory/1476-0-0x0000000000400000-0x0000000000440000-memory.dmp

                  memory/3860-12-0x0000000000400000-0x0000000000440000-memory.dmp

                  memory/3860-1335-0x0000000000400000-0x0000000000440000-memory.dmp

                  memory/3860-2449-0x0000000000400000-0x0000000000440000-memory.dmp

                  memory/3860-4020-0x0000000000400000-0x0000000000440000-memory.dmp

                  memory/3860-238-0x0000000000400000-0x0000000000440000-memory.dmp

                  memory/3860-18-0x0000000000400000-0x0000000000440000-memory.dmp

                  memory/3860-6305-0x0000000000400000-0x0000000000440000-memory.dmp

                  memory/3860-8826-0x0000000000400000-0x0000000000440000-memory.dmp