Analysis

  • max time kernel
    150s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    02/06/2024, 22:32

General

  • Target

    2c61575ffc47c836954fc31763a72ef3365b1520a80a03bec9a17cc745c1192b.exe

  • Size

    252KB

  • MD5

    40724cf53177a2e069d817cce0715545

  • SHA1

    8054bcccda57a9b7e82288c5b434c23fa8997857

  • SHA256

    2c61575ffc47c836954fc31763a72ef3365b1520a80a03bec9a17cc745c1192b

  • SHA512

    6abcc875cb9541c922c3e4ba14e65d23ef297b58e409a60e186015725b2bc28836000e35201b697fbe069137227a2dac77d0c66c4a2a087b5e405de451454b36

  • SSDEEP

    6144:YFpOgiC4bXqsTk90qC1AOb7eswf1Px++fD8PJ:eplitXqsTkiR7twRx+gD8PJ

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 25 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1176
      • C:\Users\Admin\AppData\Local\Temp\2c61575ffc47c836954fc31763a72ef3365b1520a80a03bec9a17cc745c1192b.exe
        "C:\Users\Admin\AppData\Local\Temp\2c61575ffc47c836954fc31763a72ef3365b1520a80a03bec9a17cc745c1192b.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:2916
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c C:\Users\Admin\AppData\Local\Temp\$$a78F.bat
          3⤵
          • Deletes itself
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:772
          • C:\Users\Admin\AppData\Local\Temp\2c61575ffc47c836954fc31763a72ef3365b1520a80a03bec9a17cc745c1192b.exe
            "C:\Users\Admin\AppData\Local\Temp\2c61575ffc47c836954fc31763a72ef3365b1520a80a03bec9a17cc745c1192b.exe"
            4⤵
            • Executes dropped EXE
            PID:2680
        • 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:2920
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:2604
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
                PID:2716

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • 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\$$a78F.bat

        Filesize

        721B

        MD5

        c9fe21ab5c6418c738527b40888c62fa

        SHA1

        e4f2f4365d128cd3fc41dcc47043cda3f92aa286

        SHA256

        dafb7563ed866a3144db50a90a6838a36fef1b2549bf485b413f35187942dc74

        SHA512

        bdd26613a8395fb1938faa28165c523e169996ebc70b83d6430292144595b57eb11d19d6d92b53059fd26273037ff48debd4bd2324912d89cc413fb29b067b3f

      • C:\Users\Admin\AppData\Local\Temp\2c61575ffc47c836954fc31763a72ef3365b1520a80a03bec9a17cc745c1192b.exe.exe

        Filesize

        224KB

        MD5

        d4b257c01bbaa68d15d8368475a4e227

        SHA1

        fafae083a882e163cfa8c77258baaab891c17df2

        SHA256

        dd6dd981c7f1a6673dc8cc3a0fe1fc8a54e059a9fdb0545b0dc9258299c0c546

        SHA512

        167494ecb32196e8e199d7d14a1c0498eee45ab8e8862e5441539fa569313bb602b9e979935c7cc5ba39300e54e8bdbdf2f502e4ea24b5e8339fd2c3685ca502

      • C:\Windows\Logo1_.exe

        Filesize

        27KB

        MD5

        3262af3b3175a752b3dc89d5befd082f

        SHA1

        e21b1e0a8298ce207987bf3479d995516ffb1c4a

        SHA256

        9760f2e8aa488761a0086d8c1d015d250d11c9c2b468c0c6786502c5f48bf788

        SHA512

        c2a167c48d803b206f5235cd61ab0f165241fe50d31f0471a117d692d7b3cd87a546ed2e03c7e6c261d0887ea77960e69ae48788cd5289c8142a1ba97a60b720

      • F:\$RECYCLE.BIN\S-1-5-21-3452737119-3959686427-228443150-1000\_desktop.ini

        Filesize

        8B

        MD5

        af485d3db9f82d3e5bdc8c6d87fb742e

        SHA1

        f879c3dbd3d34e9789ff73896508bfbeabbf7468

        SHA256

        7a7b688ede50bbaf08d4579fbd8c6b6c99d9dd1206d95ab24d8174eb9be98759

        SHA512

        d5fe5155948320ef6d3f80c01c9a81f0d4f60bab381d921ab2e06b62475618b973b34346bd41b40af24f2b5aff64bba68710f405f7ff21a58f369acbaaee9360

      • memory/1176-31-0x0000000002A60000-0x0000000002A61000-memory.dmp

        Filesize

        4KB

      • memory/2916-16-0x0000000000220000-0x0000000000255000-memory.dmp

        Filesize

        212KB

      • memory/2916-18-0x0000000000220000-0x0000000000255000-memory.dmp

        Filesize

        212KB

      • memory/2916-17-0x0000000000400000-0x0000000000435000-memory.dmp

        Filesize

        212KB

      • memory/2916-0-0x0000000000400000-0x0000000000435000-memory.dmp

        Filesize

        212KB

      • memory/2920-33-0x0000000000400000-0x0000000000435000-memory.dmp

        Filesize

        212KB

      • memory/2920-40-0x0000000000400000-0x0000000000435000-memory.dmp

        Filesize

        212KB

      • memory/2920-46-0x0000000000400000-0x0000000000435000-memory.dmp

        Filesize

        212KB

      • memory/2920-92-0x0000000000400000-0x0000000000435000-memory.dmp

        Filesize

        212KB

      • memory/2920-98-0x0000000000400000-0x0000000000435000-memory.dmp

        Filesize

        212KB

      • memory/2920-530-0x0000000000400000-0x0000000000435000-memory.dmp

        Filesize

        212KB

      • memory/2920-1852-0x0000000000400000-0x0000000000435000-memory.dmp

        Filesize

        212KB

      • memory/2920-1978-0x0000000000400000-0x0000000000435000-memory.dmp

        Filesize

        212KB

      • memory/2920-3312-0x0000000000400000-0x0000000000435000-memory.dmp

        Filesize

        212KB

      • memory/2920-20-0x0000000000400000-0x0000000000435000-memory.dmp

        Filesize

        212KB