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Analysis

  • max time kernel
    119s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    16/07/2024, 11:23

General

  • Target

    b235e8de79b0191a83d3b49aa7048f40N.exe

  • Size

    84KB

  • MD5

    b235e8de79b0191a83d3b49aa7048f40

  • SHA1

    4c1de2173bfaa53140aa8ee0cef628aa76edebb7

  • SHA256

    b09e310442fe5a9f3b0a8fba7e913e2bb06c72f87a5bc3043eb059d64c0c7069

  • SHA512

    d6bf52ddeb8eca5859d8cdb7026e5c6de5c279823fca18a2eb74a05b8497f4124f4e866bf8fd254f9f25dcca7ff2e369893f69dbb04ba725d0629c2df347b41f

  • SSDEEP

    1536:1clIGFNMi+hJUneHoGTvvv4V9hqdhbtgS:+RMi+fUnCTvvv4V9hEhbCS

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 5 IoCs
  • UPX packed file 7 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).

  • 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\b235e8de79b0191a83d3b49aa7048f40N.exe
    "C:\Users\Admin\AppData\Local\Temp\b235e8de79b0191a83d3b49aa7048f40N.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2636
    • C:\Users\Admin\AppData\Local\Temp\b235e8de79b0191a83d3b49aa7048f40N.exe
      "C:\Users\Admin\AppData\Local\Temp\b235e8de79b0191a83d3b49aa7048f40N.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:572
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\LBNOJ.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2280
        • 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
          PID:3068
      • C:\Users\Admin\AppData\Roaming\system\lsass.exe
        "C:\Users\Admin\AppData\Roaming\system\lsass.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2428
        • C:\Users\Admin\AppData\Roaming\system\lsass.exe
          "C:\Users\Admin\AppData\Roaming\system\lsass.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:2732
        • C:\Users\Admin\AppData\Roaming\system\lsass.exe
          "C:\Users\Admin\AppData\Roaming\system\lsass.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious use of WriteProcessMemory
          PID:2984
          • C:\Users\Admin\AppData\Roaming\system\lsass.exe
            "C:\Users\Admin\AppData\Roaming\system\lsass.exe"
            5⤵
            • Executes dropped EXE
            • Modifies system certificate store
            PID:916

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Cab1BBD.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

    Filesize

    146B

    MD5

    c8cba0a9d4d5600b5f53c4c0681d1115

    SHA1

    0e5348e210ca70b2b0ffdc3ff7e6f611716df80c

    SHA256

    ca2b63f6d7bf17480415ae93e115bf9f9699335e84e62719eefdbcc5a78bd2e1

    SHA512

    a2ad6eb5ae2f6d57ca15363ac2f0c57ca3580474e94b9c010750948814cf4d5ffa0c3e7ef44634a3593da23f56011703ff220a3d7780f6f01785bf3b6676ced0

  • C:\Users\Admin\AppData\Local\Temp\Tar1BDF.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

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

    Filesize

    84KB

    MD5

    92229377e79a280b22e87062b3888200

    SHA1

    0ab3077d22a8ea9aa29fe9c7f67162adb634a59a

    SHA256

    5759f819f007475e9dff05e055c7d15837eea776c5f4cb07513c64d727de2260

    SHA512

    75a209aaef98d74beb67fb2bebca4245f0b2cc2a10b3d2e54581d84d948ab24cc36d20cd1a3b234a6932c17ae082f1ba04d6b0001c59d42d887f87993dfa5e5e

  • memory/572-171-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/572-390-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/572-278-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/572-169-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/572-173-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/572-181-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2636-178-0x0000000000320000-0x0000000000321000-memory.dmp

    Filesize

    4KB

  • memory/2636-58-0x0000000000280000-0x0000000000281000-memory.dmp

    Filesize

    4KB

  • memory/2636-14-0x0000000000240000-0x0000000000241000-memory.dmp

    Filesize

    4KB

  • memory/2636-177-0x00000000002A0000-0x00000000002A1000-memory.dmp

    Filesize

    4KB

  • memory/2636-180-0x0000000000360000-0x0000000000361000-memory.dmp

    Filesize

    4KB

  • memory/2636-26-0x0000000000250000-0x0000000000251000-memory.dmp

    Filesize

    4KB

  • memory/2636-38-0x0000000000260000-0x0000000000261000-memory.dmp

    Filesize

    4KB

  • memory/2636-179-0x0000000000350000-0x0000000000351000-memory.dmp

    Filesize

    4KB

  • memory/2636-4-0x0000000000230000-0x0000000000231000-memory.dmp

    Filesize

    4KB

  • memory/2636-2-0x0000000000230000-0x0000000000231000-memory.dmp

    Filesize

    4KB

  • memory/2636-68-0x0000000000290000-0x0000000000291000-memory.dmp

    Filesize

    4KB

  • memory/2732-383-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2732-565-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2984-405-0x0000000000400000-0x0000000000403000-memory.dmp

    Filesize

    12KB

  • memory/2984-391-0x0000000000400000-0x0000000000403000-memory.dmp

    Filesize

    12KB