Analysis

  • max time kernel
    149s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250610-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250610-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/06/2025, 17:36

General

  • Target

    b1b4737dc107e822fe8f426a8f21bf353a6ee2b6f6291ce088d72dd15120345d.exe

  • Size

    717KB

  • MD5

    b607011b73bc84e20dcddb37f6d493d9

  • SHA1

    32f3f403deec10d8a0140ba77d5eaa950ef2d911

  • SHA256

    b1b4737dc107e822fe8f426a8f21bf353a6ee2b6f6291ce088d72dd15120345d

  • SHA512

    4d92fe75d89c45da930c86c07ceef95a89a76da43fff54ca165a3f60f554a89da99e44f62750ec8f885a90a485b4e612ce2603e71476b3dcd6b752cec3a4bcad

  • SSDEEP

    12288:T1G7fC6Aj+TN5uixZN+8rKhUdTC/wE1ZD0Ca5ZIXV:T1ULOS2opPIXV

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 9 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 64 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3496
      • C:\Users\Admin\AppData\Local\Temp\b1b4737dc107e822fe8f426a8f21bf353a6ee2b6f6291ce088d72dd15120345d.exe
        "C:\Users\Admin\AppData\Local\Temp\b1b4737dc107e822fe8f426a8f21bf353a6ee2b6f6291ce088d72dd15120345d.exe"
        2⤵
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:912
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:3944
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            PID:2340
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a81F1.bat
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:5060
          • C:\Users\Admin\AppData\Local\Temp\b1b4737dc107e822fe8f426a8f21bf353a6ee2b6f6291ce088d72dd15120345d.exe
            "C:\Users\Admin\AppData\Local\Temp\b1b4737dc107e822fe8f426a8f21bf353a6ee2b6f6291ce088d72dd15120345d.exe"
            4⤵
            • Executes dropped EXE
            PID:4500
        • 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:6112
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:4624
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
              • System Location Discovery: System Language Discovery
              PID:4580
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:940
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
              • System Location Discovery: System Language Discovery
              PID:3092

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          • C:\Program Files (x86)\Microsoft\EdgeUpdate_bk\1.3.147.37\MicrosoftEdgeUpdateBroker.exe

            Filesize

            132KB

            MD5

            ba334de511777152ea7f48e370af44d4

            SHA1

            f42466e61a76545306265516e883e919249480f5

            SHA256

            40acbed02bf2a35ce1651e2235e6aae414ba130dd10178e8586f3d41eda42e03

            SHA512

            82250a04de1cbbfad518599179a1e88feae519e294c4c0df05ae1747a00ffab4290071d85048b3f6337a88dbfc113cb38a45b83949c2c4bc11fd175cf9f51d09

          • C:\Program Files\7-Zip\7z.exe

            Filesize

            582KB

            MD5

            38dacf57da2f972bcb2d91525760069b

            SHA1

            67089faa4a033a5fe62c12ae705501e5b322e1f8

            SHA256

            ce6f517e6f8c4c79963e91ba7a26b8ec36cbb4a2b4c25648da14447da6b1b0f4

            SHA512

            98013276b20f8e41fc1157453c39696298119c2fc0b1d73770a45acdcbd5e5def0232e52f4e539a5770a8ef2aeb7abeee5650e1467d369a0dc29ed617ba9b642

          • C:\ProgramData\Package Cache\{61087a79-ac85-455c-934d-1fa22cc64f36}\vcredist_x86.exe

            Filesize

            488KB

            MD5

            5ede147d684b624bff3c9087fc2f203f

            SHA1

            174c4ecba8d016bf2de19a1909479a08fc14de2b

            SHA256

            130a8a4abffa329e7253daa17685da1ca5eb705fd517766f88a7af704f6d71e1

            SHA512

            f605e21a16fc48327250ba0aa871d0921127a62c65613faf089e5fface89ccaecb5ab23067961930e2179699b686f291bf2c86da9cce2709304bfd5d3429e76e

          • C:\Users\Admin\AppData\Local\Temp\$$a81F1.bat

            Filesize

            722B

            MD5

            ef07f5d0f6b036a2ac732e3ca271cb24

            SHA1

            eda3212a90c445973ad1a4af14b0c62a01ddcf00

            SHA256

            23d504d394d87097d6ff154b54f057dd28618b60d5161c1a35d20d8e73094d51

            SHA512

            d9823433f2f29b4d50df9c020b527c70599ba98fd5b570923d195a2760e76fd9351da054dc2a392dfb91962bc3b54816c64802e5f126589a1392368a50b4511a

          • C:\Users\Admin\AppData\Local\Temp\b1b4737dc107e822fe8f426a8f21bf353a6ee2b6f6291ce088d72dd15120345d.exe.exe

            Filesize

            684KB

            MD5

            50f289df0c19484e970849aac4e6f977

            SHA1

            3dc77c8830836ab844975eb002149b66da2e10be

            SHA256

            b9b179b305c5268ad428b6ae59de10b4fe99cf0199bbc89b7017181905e97305

            SHA512

            877d852ea1062b90e2fd2f3c4dc7d05d9697e9a9b2929c830a770b62741f6a11e06de73275eb871113f11143faf1cb40d99f7c247862ffb778d26833ed5d7e38

          • C:\Windows\Logo1_.exe

            Filesize

            33KB

            MD5

            07d465266ad0c96e77e6311dfbcec840

            SHA1

            d6daf990d3b110b08d58c11a485594925459ffdb

            SHA256

            6254846e8ff533bfbf772741e651a52e9e3629f167a8b5155d20066de051306b

            SHA512

            baf801253d21798695f12af6718e0d694d3ba9ebe14e58800fb89eaafad9fccc704b07ea8ba7c04a90a28a863558904e0485deeb06856eb0214655765eed0bea

          • F:\$RECYCLE.BIN\S-1-5-21-155457276-1657131288-1088518942-1000\_desktop.ini

            Filesize

            9B

            MD5

            8d5d367ed8a2afc1fc0b8fc7d14da98c

            SHA1

            fddfad39cd8b448d0d3dbb6e9c67752999568783

            SHA256

            93740c0db50f557803e16032194380e92e586f9cd845c4543eae2c3aa97d95f6

            SHA512

            3215518f650fe697fa80054e2e7e98a55a23832309347704985d502ecf46726048291ace0a619b669726fda404c9235047a21563971a238864ee3523f5bbe96b

          • memory/912-11-0x0000000000400000-0x000000000043D000-memory.dmp

            Filesize

            244KB

          • memory/912-0-0x0000000000400000-0x000000000043D000-memory.dmp

            Filesize

            244KB

          • memory/6112-18-0x0000000000400000-0x000000000043D000-memory.dmp

            Filesize

            244KB

          • memory/6112-1669-0x0000000000400000-0x000000000043D000-memory.dmp

            Filesize

            244KB

          • memory/6112-9-0x0000000000400000-0x000000000043D000-memory.dmp

            Filesize

            244KB

          • memory/6112-9879-0x0000000000400000-0x000000000043D000-memory.dmp

            Filesize

            244KB

          • memory/6112-9947-0x0000000000400000-0x000000000043D000-memory.dmp

            Filesize

            244KB