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Analysis

  • max time kernel
    150s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    16/04/2024, 16:10

General

  • Target

    fb5b99692b2b123c7f767de087f1ebd43f5a0d8db0e814446f540d696227db2b.exe

  • Size

    68KB

  • MD5

    a649ea0cd17c611a1773d2317825ee9c

  • SHA1

    39e26c1d0e303667fc3d79956bab97a3586c161e

  • SHA256

    fb5b99692b2b123c7f767de087f1ebd43f5a0d8db0e814446f540d696227db2b

  • SHA512

    860909e74cd4b1daee13b2e25e7e5d6cb2010259334496c73293f1995e4d0c660ff44bda6c8354b69d56e244e91e1be3461e3739c08f67bebce1a9be6876cf1a

  • SSDEEP

    1536:Ta3SHmLKarIpYeEToa9D4ZQKbgZi1dst7x9PxQ:TakF3pdlZQKbgZi1St7xQ

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
  • 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:1276
      • C:\Users\Admin\AppData\Local\Temp\fb5b99692b2b123c7f767de087f1ebd43f5a0d8db0e814446f540d696227db2b.exe
        "C:\Users\Admin\AppData\Local\Temp\fb5b99692b2b123c7f767de087f1ebd43f5a0d8db0e814446f540d696227db2b.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:2084
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c C:\Users\Admin\AppData\Local\Temp\$$a45F6.bat
          3⤵
          • Deletes itself
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:2920
          • C:\Users\Admin\AppData\Local\Temp\fb5b99692b2b123c7f767de087f1ebd43f5a0d8db0e814446f540d696227db2b.exe
            "C:\Users\Admin\AppData\Local\Temp\fb5b99692b2b123c7f767de087f1ebd43f5a0d8db0e814446f540d696227db2b.exe"
            4⤵
            • Executes dropped EXE
            PID:2572
        • 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:2528
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:2644
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
                PID:2848

      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

        252KB

        MD5

        5d32193de2cfdf187b43e5aff62a4fd2

        SHA1

        69c3b62ab39c979b2ebaff09c8f299ac3966690f

        SHA256

        b777124eef2f354f48d4e31f57404982b2dcfaa8a08f18cc81dccb11459a367f

        SHA512

        793dff9014d718b26300d6210fe9335131dd56ec0f6c48374ec1777b98fc5fa48cf285f6e066a02813fa77adab8269692e9ec4b14dc11bc04bf4782534ad9ae8

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

        Filesize

        472KB

        MD5

        88eb1bca8c399bc3f46e99cdde2f047e

        SHA1

        55fafbceb011e1af2edced978686a90971bd95f2

        SHA256

        42fd78c05bc240d4ded16ac974f17c336f6ae3a1814d548021c48a942cc30428

        SHA512

        149d4de0c024e25a13a7bb17471e6f48391d4f26b1c8388672320eed1c255f84219ad7b72bbebc531ae558d5192dd4bb6d0dddd6c65a45300c8e8348a4fb3728

      • C:\Users\Admin\AppData\Local\Temp\$$a45F6.bat

        Filesize

        722B

        MD5

        139bc0485aaaba961b866a4a36d091a5

        SHA1

        8ba2e4da7ffb72576f780e376d8d4e35bf7abadf

        SHA256

        a2eeccb23385d3ef24ff627ff55a2a8389f2cb7b49b79900507b254ff9002641

        SHA512

        a50dcb930b88dbf26d757fc02d624fb4d9af5474f954064a63966f5ef3c2fedb1688abd8875da9eec4c40f283f33eb08c519cbc3185db4bf7629c5ca416907e9

      • C:\Users\Admin\AppData\Local\Temp\fb5b99692b2b123c7f767de087f1ebd43f5a0d8db0e814446f540d696227db2b.exe.exe

        Filesize

        41KB

        MD5

        977e405c109268909fd24a94cc23d4f0

        SHA1

        af5d032c2b6caa2164cf298e95b09060665c4188

        SHA256

        cd24c61fe7dc3896c6c928c92a2adc58fab0a3ff61ef7ddcac1ba794182ab12f

        SHA512

        12b4b59c1a8e65e72aa07ee4b6b6cd9fdedead01d5ce8e30f16ca26b5d733655e23a71c1d273a950a5b1a6cce810b696612de4a1148ac5f468ddf05d4549eed5

      • C:\Windows\Logo1_.exe

        Filesize

        27KB

        MD5

        45fabbad5797257dc9a43b6cc8d2432d

        SHA1

        67df885f45d55667a66a6ec54b07bb1d84eab7de

        SHA256

        26ac0021f99062a8bfe7fb75f9af3bb948576eca9585dd54701f27fad6706b6c

        SHA512

        296c7145356bf381683b2095ab5b897003edae7e5db0e14c737e356340905fcde29a9f1fc94b9737d5efd95fbe132d4661b5316405445e6cde136c9a59a0d25c

      • F:\$RECYCLE.BIN\S-1-5-21-778096762-2241304387-192235952-1000\_desktop.ini

        Filesize

        9B

        MD5

        02ced53ce3f5b175c3bbec378047e7a7

        SHA1

        dafdf07efa697ec99b3d7b9f7512439a52ea618d

        SHA256

        485bb2341321a2837fd015a36963ea549c7c6f40985e165fd56c8a1e89b3f331

        SHA512

        669dde3ea8628704d40681a7f8974cf52985385c92a61a540c97c18c13eb4d451207ae171b2a56cd061cadbc90e672a84eb55111b1f5016846918d73fb075c99

      • memory/1276-29-0x00000000029F0000-0x00000000029F1000-memory.dmp

        Filesize

        4KB

      • memory/2084-12-0x0000000000220000-0x0000000000255000-memory.dmp

        Filesize

        212KB

      • memory/2084-16-0x0000000000400000-0x0000000000435000-memory.dmp

        Filesize

        212KB

      • memory/2084-0-0x0000000000400000-0x0000000000435000-memory.dmp

        Filesize

        212KB

      • memory/2528-31-0x0000000000400000-0x0000000000435000-memory.dmp

        Filesize

        212KB

      • memory/2528-44-0x0000000000400000-0x0000000000435000-memory.dmp

        Filesize

        212KB

      • memory/2528-90-0x0000000000400000-0x0000000000435000-memory.dmp

        Filesize

        212KB

      • memory/2528-96-0x0000000000400000-0x0000000000435000-memory.dmp

        Filesize

        212KB

      • memory/2528-252-0x0000000000400000-0x0000000000435000-memory.dmp

        Filesize

        212KB

      • memory/2528-1849-0x0000000000400000-0x0000000000435000-memory.dmp

        Filesize

        212KB

      • memory/2528-38-0x0000000000400000-0x0000000000435000-memory.dmp

        Filesize

        212KB

      • memory/2528-3309-0x0000000000400000-0x0000000000435000-memory.dmp

        Filesize

        212KB

      • memory/2528-21-0x0000000000400000-0x0000000000435000-memory.dmp

        Filesize

        212KB