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Analysis

  • max time kernel
    149s
  • max time network
    126s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/09/2024, 02:17

General

  • Target

    a43aa4c3703fbb1f366be53f0b25457be19d94a20a69a18e6fc8fba76b665c4b.exe

  • Size

    171KB

  • MD5

    791f7273cb34e21ba8b88ea60100e6d6

  • SHA1

    07bee4eda217456e28474042b19a2202ae362ccd

  • SHA256

    a43aa4c3703fbb1f366be53f0b25457be19d94a20a69a18e6fc8fba76b665c4b

  • SHA512

    cad89ca6292ed89a12f73cb2479ef0756fa5130bcaf1d00e4753bdc85d58351c1ad4d4d807e22648682f846222c716df75d266be34c407553e3329f3bd072a3c

  • SSDEEP

    3072:Ate+aezUa6pBiU99djmMGWBgh1002J8emEu3T7TO+9Z9sTOVrZzxVxU:l+aezCpB/YWBW1Wu3rOOuOVr8

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
  • 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 SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3488
      • C:\Users\Admin\AppData\Local\Temp\a43aa4c3703fbb1f366be53f0b25457be19d94a20a69a18e6fc8fba76b665c4b.exe
        "C:\Users\Admin\AppData\Local\Temp\a43aa4c3703fbb1f366be53f0b25457be19d94a20a69a18e6fc8fba76b665c4b.exe"
        2⤵
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1292
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2704
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            PID:3064
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$aA1ED.bat
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:4832
          • C:\Users\Admin\AppData\Local\Temp\a43aa4c3703fbb1f366be53f0b25457be19d94a20a69a18e6fc8fba76b665c4b.exe
            "C:\Users\Admin\AppData\Local\Temp\a43aa4c3703fbb1f366be53f0b25457be19d94a20a69a18e6fc8fba76b665c4b.exe"
            4⤵
            • Executes dropped EXE
            • Suspicious use of SetWindowsHookEx
            PID:4048
        • 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:1600
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:548
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
              • System Location Discovery: System Language Discovery
              PID:1524
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2160
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
              • System Location Discovery: System Language Discovery
              PID:1836

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateCore.exe

      Filesize

      257KB

      MD5

      bec822bf2d0062d8c7135bdd5198db70

      SHA1

      9683bff90a158ce766f8661f76905d03327073a8

      SHA256

      b7c35b00d9d1dc323e12c11dc62443e390f6270c73e7e87038ad350198e82393

      SHA512

      1b86a8b9dee288afb8d4adef795002c325a2b19de773cc7cadb407c717f87c57a06584b2f92a7e65107894b5935020d8da6a8005e660c22e2fcfdd06df93951c

    • C:\Program Files\7-Zip\7z.exe

      Filesize

      583KB

      MD5

      e139d66c672489955f5bd474c5884240

      SHA1

      1b4360ad8cebf443f1f39ea0b9353d8b97c86b42

      SHA256

      ee2997942af8ea07ed5ecd8f41fb1c01ffa739a2c5247a27605b527b472d2caf

      SHA512

      8755334f20c130b93e1b9d566395125b6dbca54bbd7fae1478a04a6a3bb56852c0c69dd382b2cba7a015500ff4d1ed168ddc0cedc5da424c51acd333f7eac999

    • C:\ProgramData\Package Cache\{63880b41-04fc-4f9b-92c4-4455c255eb8c}\windowsdesktop-runtime-8.0.2-win-x64.exe

      Filesize

      649KB

      MD5

      63b3bb79a49b72fddcd6d52791b91870

      SHA1

      12cc9c08a41e388dcfb041ba0333bb43e18e02eb

      SHA256

      70f1aa895f442cbacfc8c168bb2f71cbc7b07529833e71d67114d9f3870304b3

      SHA512

      4fbbe71ec709d911ddc46be49cc01217e0111f3f7b7f05b260ddc4d1f82f71b13275e3941592949bc70a4ca71b1b3af5c99d410e2cd87eecb93183302e59a893

    • C:\Users\Admin\AppData\Local\Temp\$$aA1ED.bat

      Filesize

      722B

      MD5

      c73d8af4ff377fd98fa649c0c9ce9403

      SHA1

      11443897d4b31e48aecfa9e8d13bb48b2e6d454a

      SHA256

      ea069ecd99fd6a105c033dc6ddc42e85794ee3ab144718f482590ceb133cd1d1

      SHA512

      a63da27cf843331c3998017cc4486d1a72fb3f0b24bf7e49de83307b3703707cba20feeaddbaf48423eb40ac9d9cae47bbacdfe3913c79f4a41b2222a3564691

    • C:\Users\Admin\AppData\Local\Temp\a43aa4c3703fbb1f366be53f0b25457be19d94a20a69a18e6fc8fba76b665c4b.exe.exe

      Filesize

      131KB

      MD5

      16438a96a8adb85472ca72da04701b29

      SHA1

      b1f5ee8bc083804de4de820255107f6541c84735

      SHA256

      9291cd97d2f1b119438f16e97ea75119f19fd959ec5414e84b337530d692e289

      SHA512

      58f659a29cb34245a261b7666b1cda4b76f2df1039f3713dda6ff5a97c33b4cc273b110d10b4131a6a5c13897efcfa9a5ef3031e0e5fb14db1adc0ac1ef25dcd

    • C:\Windows\Logo1_.exe

      Filesize

      39KB

      MD5

      0b034525c0a86d564a1585fe1b22bb5f

      SHA1

      e12b56f99a607fb621f7af46c5d829d71ce97cd6

      SHA256

      d8a7abd2d5a1dce1488ea5a68f80cdebca7225ab725853a8f5277855bdf23c4e

      SHA512

      4ccf381fcb4038259db3a9e6099e79b203e4f8e22771300f9429d811ae022327953f2648458bfa78dac78e58b2cf2af8a1dad34207d736ebf4cfff0dedabbf4a

    • F:\$RECYCLE.BIN\S-1-5-21-945322488-2060912225-3527527000-1000\_desktop.ini

      Filesize

      8B

      MD5

      4b4a61d6d446a36ccde31e7ebd6e7aeb

      SHA1

      6abcca1983b34a570385eb5b421b92449c851dfc

      SHA256

      d685543d9800644339454e98bc6c2f9ccea646fd51fdb5181583ca60fcdef8e9

      SHA512

      c25ac03153db7beb8b163c82e5ef75e916346047a00202825b79797b6259f877eea6fac6ea333743d7e423d5fc65d713e9e0cafc0631321beab8ae01ede9ee65

    • memory/1292-11-0x0000000000400000-0x000000000043D000-memory.dmp

      Filesize

      244KB

    • memory/1292-0-0x0000000000400000-0x000000000043D000-memory.dmp

      Filesize

      244KB

    • memory/1600-18-0x0000000000400000-0x000000000043D000-memory.dmp

      Filesize

      244KB

    • memory/1600-2868-0x0000000000400000-0x000000000043D000-memory.dmp

      Filesize

      244KB

    • memory/1600-8-0x0000000000400000-0x000000000043D000-memory.dmp

      Filesize

      244KB

    • memory/1600-8755-0x0000000000400000-0x000000000043D000-memory.dmp

      Filesize

      244KB