Analysis

  • max time kernel
    100s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    10/06/2024, 06:33

General

  • Target

    66f5e3dcf358be1227ad7291d186f158c8774d341123f648428611566f552f00.exe

  • Size

    959KB

  • MD5

    a56aa19283e549826773ba3d83076069

  • SHA1

    f0b45d0ac088d1f2979f5304fd048b92f4f3cfbb

  • SHA256

    66f5e3dcf358be1227ad7291d186f158c8774d341123f648428611566f552f00

  • SHA512

    548c9b5d006d83e5081e4a5e93496e40425be5f33447ee755f576009e5ecfc3cf826a858da8c2e2a197bd1b986814a306f362a772c0295ac47ad078fe632a318

  • SSDEEP

    12288:b+RKcv8Nh7py6Rmi78gkPH3aPI9vyVg/0paQuj3IdD02fKBjtp/:bXBpDRmi78gkPXlyo0G/jr

Score
7/10

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1168
      • C:\Users\Admin\AppData\Local\Temp\66f5e3dcf358be1227ad7291d186f158c8774d341123f648428611566f552f00.exe
        "C:\Users\Admin\AppData\Local\Temp\66f5e3dcf358be1227ad7291d186f158c8774d341123f648428611566f552f00.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:1616
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c C:\Users\Admin\AppData\Local\Temp\$$aA2E.bat
          3⤵
          • Deletes itself
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:2996
          • C:\Users\Admin\AppData\Local\Temp\66f5e3dcf358be1227ad7291d186f158c8774d341123f648428611566f552f00.exe
            "C:\Users\Admin\AppData\Local\Temp\66f5e3dcf358be1227ad7291d186f158c8774d341123f648428611566f552f00.exe"
            4⤵
            • Executes dropped EXE
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            PID:2728
        • 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:3004
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:2828
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
                PID:2552

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            • C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateCore.exe

              Filesize

              254KB

              MD5

              9fff503fad7fa1d9cc7453fdf86ff0e0

              SHA1

              f9b728ba2e8bf2b3a570583f06b0fd7e9fce4ef2

              SHA256

              826148f8b31a5372a71adf8f51961e1b59de63c8865393feffb99ece5e113147

              SHA512

              c00773863ea4b6d88ba1c5a9dcfd2f1033e540c854f2f041bb193f367a9153d54d9fcec0c71e4e9834bbe98a6a5be030b045d34e3b54d69cddfd4d427895af4f

            • C:\ProgramData\Package Cache\{ca67548a-5ebe-413a-b50c-4b9ceb6d66c6}\vcredist_x64.exe

              Filesize

              411KB

              MD5

              9c1671821855ca12975573629ddd484a

              SHA1

              ba971ed691b0a86d1edcd8d6f1cbd1ceba8e6acb

              SHA256

              7441f57dcd2c39df50c7b9a40c858958f1ae0cf10eee1b8e348f8469a8cae3f8

              SHA512

              e3e26e0afbcdc285686d26187c2e39ff1716a794a58cd3615bcf4e3494a0cde80cc41f0be3ca4a87e0018f2c707599041dc86627a581b1c06297c7aab52d9c89

            • C:\Users\Admin\AppData\Local\Temp\$$aA2E.bat

              Filesize

              721B

              MD5

              8e66b093b77209e21718913786bc719f

              SHA1

              ddb344ec16416843858a538fc14ca0314ab8da96

              SHA256

              27d101f3a7821128b9abdf045f0529259149a17fab640255c9ed89186013b039

              SHA512

              52a6fc7028737d490c00b31bdabef6751d3c2b897754bd7929076293595da6bb60286476844f3ca90e318714799ce8b18634db63a19e7bc32c6666267f96159f

            • C:\Users\Admin\AppData\Local\Temp\66f5e3dcf358be1227ad7291d186f158c8774d341123f648428611566f552f00.exe.exe

              Filesize

              930KB

              MD5

              30ac0b832d75598fb3ec37b6f2a8c86a

              SHA1

              6f47dbfd6ff36df7ba581a4cef024da527dc3046

              SHA256

              1ea0839c8dc95ad2c060af7d042c40c0daed58ce8e4524c0fba12fd73e4afb74

              SHA512

              505870601a4389b7ed2c8fecf85835adfd2944cbc10801f74bc4e08f5a0d6ecc9a52052fc37e216304cd1655129021862294a698ed36b3b43d428698f7263057

            • C:\Windows\Logo1_.exe

              Filesize

              29KB

              MD5

              ba189b5e31c56a2e16e9c7accf623760

              SHA1

              52470f4d5e556832e9e4ff4625751ae62219d0ee

              SHA256

              037c1fc35982012dddedd497646d12ef35654415a14d4bbd467dca672954a3ed

              SHA512

              8da8c08b8af3450f715d2a04b492f2f459a93695bdf7514441705d041d5aba0df6edbb7a5e69e9a8bcbabd9f3c692e2522365ef2e889db3857043118c6df05b0

            • F:\$RECYCLE.BIN\S-1-5-21-2737914667-933161113-3798636211-1000\_desktop.ini

              Filesize

              9B

              MD5

              60b1ffe4d5892b7ae054738eec1fd425

              SHA1

              80d4e944617f4132b1c6917345b158f3693f35c8

              SHA256

              5e9944cc48c7ec641cf7b1b0125f47f26102c371a973612f0583f604bc3900d4

              SHA512

              7f5c200924dbb5531df997e6a35cb94f36b54f5651284b0d6404f0576301125ef72b410a170fca889d46c033063663cfc7791f9e4c3c30695af069053eee66cc

            • memory/1168-29-0x0000000002620000-0x0000000002621000-memory.dmp

              Filesize

              4KB

            • memory/1616-15-0x0000000000400000-0x0000000000436000-memory.dmp

              Filesize

              216KB

            • memory/1616-0-0x0000000000400000-0x0000000000436000-memory.dmp

              Filesize

              216KB

            • memory/3004-17-0x0000000000400000-0x0000000000436000-memory.dmp

              Filesize

              216KB

            • memory/3004-45-0x0000000000400000-0x0000000000436000-memory.dmp

              Filesize

              216KB

            • memory/3004-92-0x0000000000400000-0x0000000000436000-memory.dmp

              Filesize

              216KB

            • memory/3004-98-0x0000000000400000-0x0000000000436000-memory.dmp

              Filesize

              216KB

            • memory/3004-804-0x0000000000400000-0x0000000000436000-memory.dmp

              Filesize

              216KB

            • memory/3004-1875-0x0000000000400000-0x0000000000436000-memory.dmp

              Filesize

              216KB

            • memory/3004-39-0x0000000000400000-0x0000000000436000-memory.dmp

              Filesize

              216KB

            • memory/3004-3072-0x0000000000400000-0x0000000000436000-memory.dmp

              Filesize

              216KB

            • memory/3004-3335-0x0000000000400000-0x0000000000436000-memory.dmp

              Filesize

              216KB

            • memory/3004-32-0x0000000000400000-0x0000000000436000-memory.dmp

              Filesize

              216KB