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Analysis

  • max time kernel
    119s
  • max time network
    17s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    09/10/2024, 00:48

General

  • Target

    f21d807a2ded3f7f70a83ee43cd7e123cc6867c2ec5a34300f47d5a9a21625daN.exe

  • Size

    70KB

  • MD5

    1dc00e49cb06687846c07e0a14f3d640

  • SHA1

    ff4374d2e0310e11dcbde268470afdacb286713b

  • SHA256

    f21d807a2ded3f7f70a83ee43cd7e123cc6867c2ec5a34300f47d5a9a21625da

  • SHA512

    095cb3a16438fb6a5ba0abb3763bb0c315e43aeb5f34311fd8cb8daf683a21a13f59ce3b45af49b3fd327e14445ba9fd8533795a8d266028f57e932f15c9a14a

  • SSDEEP

    1536:SfgLdQAQfcfymNUH5Dt9iY4W8P4b4oOUzHir1v0IIKx:SftffjmNUH5DtaOWr1v0

Score
7/10

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 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
  • System Location Discovery: System Language Discovery 1 TTPs 5 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 10 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1124
      • C:\Users\Admin\AppData\Local\Temp\f21d807a2ded3f7f70a83ee43cd7e123cc6867c2ec5a34300f47d5a9a21625daN.exe
        "C:\Users\Admin\AppData\Local\Temp\f21d807a2ded3f7f70a83ee43cd7e123cc6867c2ec5a34300f47d5a9a21625daN.exe"
        2⤵
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1780
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c C:\Users\Admin\AppData\Local\Temp\$$aE13B.bat
          3⤵
          • Deletes itself
          • Loads dropped DLL
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:108
          • C:\Users\Admin\AppData\Local\Temp\f21d807a2ded3f7f70a83ee43cd7e123cc6867c2ec5a34300f47d5a9a21625daN.exe
            "C:\Users\Admin\AppData\Local\Temp\f21d807a2ded3f7f70a83ee43cd7e123cc6867c2ec5a34300f47d5a9a21625daN.exe"
            4⤵
            • Executes dropped EXE
            PID:2592
        • 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
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2680
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:3012
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
              • System Location Discovery: System Language Discovery
              PID:2824

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\$$aE13B.bat

      Filesize

      728B

      MD5

      c10532bb167878959cffeb5cecb1f06a

      SHA1

      d5eabd32f02d948c7cc493d33b1c01df6a922eda

      SHA256

      a586775a64d0ca9ca85f418a4cc8d59818ca6beb0bd3da2a969f0b9d867afdfc

      SHA512

      c6b80152c075cad9f2b4be46fe31119347d97b46c25a0bda3772b52c1bbe69264c58ea9e76e01d9885fd7179b3a23aedf3b30ff3cf995b36ddd0ab154f65cab1

    • C:\Users\Admin\AppData\Local\Temp\f21d807a2ded3f7f70a83ee43cd7e123cc6867c2ec5a34300f47d5a9a21625daN.exe.exe

      Filesize

      43KB

      MD5

      f97a48d68afad7deeda7449820a6c352

      SHA1

      9d3091d9aa1a13f14f88c97f9f4274b3a67ce022

      SHA256

      0a868fc0cec233ae33c92485e4c8ce4a7659cfc8103d857b211e550b051be1c2

      SHA512

      f865b055c3527dda5fbf0cabfb7c32e46f0bfeb763325392448f0bcc2a0de977c34f96e331d4ce508b2e0d6b8fca6d672dec79a07dd1ff5ecc32ea5e67269422

    • C:\Users\Admin\AppData\Local\Temp\fastcl\32-bit_config.ini

      Filesize

      85B

      MD5

      58cedd0e28e265118c31bf9f1312cbe9

      SHA1

      1a4e69ff9413c81a01f9278381f6a30f8e482da5

      SHA256

      f63b858fe8f2336949fc25ff2be3b33f1ff73ba2bc5cbe61d4395c44739705d4

      SHA512

      fd2a57dd07595681341022b72aa6c4ad83bf2880eafcb01222ec906f2b48bc477ccb498a603455b7264775ab9650e6275bcb39a3424e3b6388b0b516900d9bc3

    • C:\Windows\Logo1_.exe

      Filesize

      26KB

      MD5

      41b7498859ec2514d5251c99701a5abb

      SHA1

      2d2c8d30b0d3232bdcb6ce0ae531120af2adfc87

      SHA256

      1e29412173e57496c61a4a9f8685d3fc9b4be142a3252cd198fa819dd2105130

      SHA512

      52f881a4753cb45e26481b1aa33e1f2266998bde7ccc6a76610d376a98c0d2f47e6462a7eee145591b9f0798ba3a22d72a1c4f1a48e6f229837f5b8bbb5b573b

    • F:\$RECYCLE.BIN\S-1-5-21-3551809350-4263495960-1443967649-1000\_desktop.ini

      Filesize

      9B

      MD5

      1db84ab14f95c77ed9f73b444afe7548

      SHA1

      a3c8282dbe6b16a8a263409827e1c94488e82bab

      SHA256

      395bbd0ae569524e627b9b111a4ac729f524e449f7dd8a1ae4d810f72e505b0e

      SHA512

      fc82a2c81847882cfa78770c057a0ee8c814cb4d0f2902714f30f156f25e05e8419675e0c0700d5085d97879ccb2f7329c6251debaff4a8489fedc7910901047

    • memory/1124-36-0x0000000002D10000-0x0000000002D11000-memory.dmp

      Filesize

      4KB

    • memory/1780-12-0x00000000001B0000-0x00000000001E4000-memory.dmp

      Filesize

      208KB

    • memory/1780-17-0x0000000000400000-0x0000000000434000-memory.dmp

      Filesize

      208KB

    • memory/1780-0-0x0000000000400000-0x0000000000434000-memory.dmp

      Filesize

      208KB

    • memory/1780-18-0x00000000001B0000-0x00000000001E4000-memory.dmp

      Filesize

      208KB

    • memory/2680-38-0x0000000000400000-0x0000000000434000-memory.dmp

      Filesize

      208KB

    • memory/2680-45-0x0000000000400000-0x0000000000434000-memory.dmp

      Filesize

      208KB

    • memory/2680-51-0x0000000000400000-0x0000000000434000-memory.dmp

      Filesize

      208KB

    • memory/2680-97-0x0000000000400000-0x0000000000434000-memory.dmp

      Filesize

      208KB

    • memory/2680-104-0x0000000000400000-0x0000000000434000-memory.dmp

      Filesize

      208KB

    • memory/2680-508-0x0000000000400000-0x0000000000434000-memory.dmp

      Filesize

      208KB

    • memory/2680-1880-0x0000000000400000-0x0000000000434000-memory.dmp

      Filesize

      208KB