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Analysis

  • max time kernel
    118s
  • max time network
    86s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    04/09/2024, 11:50

General

  • Target

    fa1075c626abe4315050d7b9544dd3b0N.exe

  • Size

    84KB

  • MD5

    fa1075c626abe4315050d7b9544dd3b0

  • SHA1

    2652e31f88810a74ac6260b5796bbedf9255cafa

  • SHA256

    96d2bb04174a2dfe53c2cdb4760188e6baa99066d5631c5b8c009652707adadb

  • SHA512

    b9ba435d0a7464908b82876ea3f1d33e8b3a637055a90924456ee7ae3640bb6aa94d8e092afd0cc0c2a056a5a5f585a6bd995d5398f959b130b0d0e6ec4425e5

  • SSDEEP

    1536:1clIGFNMi+hJUneHoGTvvv4V9hqdhbtgS:+RMi+fUnCTvvv4V9hEhbCS

Malware Config

Signatures

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 5 IoCs
  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 43 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 44 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fa1075c626abe4315050d7b9544dd3b0N.exe
    "C:\Users\Admin\AppData\Local\Temp\fa1075c626abe4315050d7b9544dd3b0N.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1820
    • C:\Users\Admin\AppData\Local\Temp\fa1075c626abe4315050d7b9544dd3b0N.exe
      "C:\Users\Admin\AppData\Local\Temp\fa1075c626abe4315050d7b9544dd3b0N.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2016
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\JNKKW.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2852
        • C:\Windows\SysWOW64\reg.exe
          REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Audio Driver" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\system\lsass.exe" /f
          4⤵
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          PID:2544
      • C:\Users\Admin\AppData\Roaming\system\lsass.exe
        "C:\Users\Admin\AppData\Roaming\system\lsass.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:332
        • C:\Users\Admin\AppData\Roaming\system\lsass.exe
          "C:\Users\Admin\AppData\Roaming\system\lsass.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:2216
        • C:\Users\Admin\AppData\Roaming\system\lsass.exe
          "C:\Users\Admin\AppData\Roaming\system\lsass.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2876
          • C:\Users\Admin\AppData\Roaming\system\lsass.exe
            "C:\Users\Admin\AppData\Roaming\system\lsass.exe"
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Modifies system certificate store
            PID:2720

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    a552b073eda97dcb77d611b30267cbbf

    SHA1

    9e304e35214aef1100f5529bdd2fe58aac8957ac

    SHA256

    7d22e177929f2ce8e38a48db688737994d3dbcd672d75756a0b731a13335010c

    SHA512

    6db99b64baa1f113d01e035f9d752fe2d8b97821da66aa33789e5d8ca441ad0c11495aa80c7acccf73cade4b974870f00936c99f866001d5760f8edc7ef27083

  • C:\Users\Admin\AppData\Local\Temp\CabBA3D.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\JNKKW.bat

    Filesize

    146B

    MD5

    c8cba0a9d4d5600b5f53c4c0681d1115

    SHA1

    0e5348e210ca70b2b0ffdc3ff7e6f611716df80c

    SHA256

    ca2b63f6d7bf17480415ae93e115bf9f9699335e84e62719eefdbcc5a78bd2e1

    SHA512

    a2ad6eb5ae2f6d57ca15363ac2f0c57ca3580474e94b9c010750948814cf4d5ffa0c3e7ef44634a3593da23f56011703ff220a3d7780f6f01785bf3b6676ced0

  • C:\Users\Admin\AppData\Local\Temp\TarBA4F.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • \Users\Admin\AppData\Roaming\system\lsass.exe

    Filesize

    84KB

    MD5

    d9ad7c37de6a9159c9cc53e5f89634aa

    SHA1

    6de7cddf8bff27242bf51d9b1d8352002ece17c0

    SHA256

    a9ae58694830787e6ff77df39740bf3f394123ad056d94ef3ab85dba4b28becb

    SHA512

    3c0703a81e202f091f3ea409d124a3d983fd14225c25106b566ab4e4914f7e0addeacbe74c8c9fa088218e17d091c22066a1fef8c21ba507da890d65c72a540d

  • memory/1820-181-0x00000000002C0000-0x00000000002C1000-memory.dmp

    Filesize

    4KB

  • memory/1820-58-0x0000000000290000-0x0000000000291000-memory.dmp

    Filesize

    4KB

  • memory/1820-125-0x0000000000350000-0x0000000000351000-memory.dmp

    Filesize

    4KB

  • memory/1820-172-0x00000000003B0000-0x00000000003B1000-memory.dmp

    Filesize

    4KB

  • memory/1820-171-0x00000000003A0000-0x00000000003A1000-memory.dmp

    Filesize

    4KB

  • memory/1820-96-0x00000000002C0000-0x00000000002C1000-memory.dmp

    Filesize

    4KB

  • memory/1820-26-0x0000000000260000-0x0000000000261000-memory.dmp

    Filesize

    4KB

  • memory/1820-2-0x0000000000240000-0x0000000000241000-memory.dmp

    Filesize

    4KB

  • memory/1820-14-0x0000000000250000-0x0000000000251000-memory.dmp

    Filesize

    4KB

  • memory/1820-4-0x0000000000240000-0x0000000000241000-memory.dmp

    Filesize

    4KB

  • memory/1820-68-0x00000000002A0000-0x00000000002A1000-memory.dmp

    Filesize

    4KB

  • memory/1820-38-0x0000000000270000-0x0000000000271000-memory.dmp

    Filesize

    4KB

  • memory/2016-182-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2016-227-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2016-391-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2016-173-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2016-175-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2016-177-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2216-553-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2876-388-0x0000000000400000-0x0000000000403000-memory.dmp

    Filesize

    12KB

  • memory/2876-405-0x0000000000400000-0x0000000000403000-memory.dmp

    Filesize

    12KB