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Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    12/10/2024, 16:08

General

  • Target

    e37b2a5c6a7d79cab74781af89f019ecf471fa6123769fe53d0d4eb56bc1b60aN.exe

  • Size

    693KB

  • MD5

    8e24f3a1b594e4c5344b7ea0b6553c00

  • SHA1

    a74c54d7365931ee006aa719a4ebae5b294d6e8b

  • SHA256

    e37b2a5c6a7d79cab74781af89f019ecf471fa6123769fe53d0d4eb56bc1b60a

  • SHA512

    77ec56b88322741500fcff590e17226ecb8db5d188c95d3602d70d22e6c014dd5e9c3e2543250073519a7bcd06550367bb8e69065bf67c43ce5c7141ca9e944f

  • SSDEEP

    12288:YKuwyWR6O38ZGljx0tJw9rUpHjyiCemgH+j5GN+FPgLdNiQdcmyQR0:YKr/dl0tJwLiCenH640P46hC0

Malware Config

Signatures

  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 64 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • UPX packed file 11 IoCs

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

  • Drops file in Program Files directory 6 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 5 IoCs
  • Modifies Internet Explorer start page 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of FindShellTrayWindow 21 IoCs
  • Suspicious use of SendNotifyMessage 21 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e37b2a5c6a7d79cab74781af89f019ecf471fa6123769fe53d0d4eb56bc1b60aN.exe
    "C:\Users\Admin\AppData\Local\Temp\e37b2a5c6a7d79cab74781af89f019ecf471fa6123769fe53d0d4eb56bc1b60aN.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Modifies Internet Explorer settings
    • Modifies Internet Explorer start page
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2520
    • C:\Program Files (x86)\panhairou\tianzhenbai.exe
      "C:\Program Files (x86)\panhairou\tianzhenbai.exe" /s1w
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      PID:3888

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\panhairou\tianzhenbai.exe

    Filesize

    1.5MB

    MD5

    7e0c790983f99751cba272419310c8a5

    SHA1

    160219cc98cf11c0712d46b5d5992f093a6041c9

    SHA256

    34be9bc08d84b71dd424a713582276980f08de12bba9a872173ecc898bec63d0

    SHA512

    763fd327926a315bf1031713cbed4903d9af041f1ab99c024bc59fdc9476cead7ded11af5a071e07da5b52e689dc3b45a4c75fe4211f0a8cc774b91268335430

  • C:\Users\Admin\AppData\Local\Temp\101646\1.htm

    Filesize

    104B

    MD5

    cb12101aa8cc119798f42d300bc73b72

    SHA1

    a45452fcfb99a5d4f4d79d2a95de0838cdf722b8

    SHA256

    d44a46465f04469a30b60012a2cdd1df854cc6b1ca2a7edee87e97114a510f5f

    SHA512

    ed0115b53d38db3a009c169178c11630f543ba2fa1d55515c60d70738150edac34672e2235f730024df74dffe64b0b4424397c1cd4e7591b6b03026cd08ddf2b

  • C:\Users\Admin\AppData\Local\Temp\nstB3C6.tmp\NSISList.dll

    Filesize

    96KB

    MD5

    156add805fa8888c0f744566a73b60fe

    SHA1

    20d3a02a1b396b66d81a23e010e9cd3dc579ac92

    SHA256

    4ce7efe0a9983fc43081d9f9769d5f47f527196d87fe708552d7f2cb1d2ebdb3

    SHA512

    1f64129e61d9611021a8fcbfb61ba39fbc97a06bcf27334b92ca9a3748dbb96178453f51834728be6fbcf4d4c90e802885a2ab30df4bfe15c67f41ba465f8e93

  • C:\Users\Admin\AppData\Local\Temp\nstB3C6.tmp\inetc.dll

    Filesize

    20KB

    MD5

    50fdadda3e993688401f6f1108fabdb4

    SHA1

    04a9ae55d0fb726be49809582cea41d75bf22a9a

    SHA256

    6d6ddc0d2b7d59eb91be44939457858ced5eb23cf4aa93ef33bb600eb28de6f6

    SHA512

    e9628870feea8c3aaefe22a2af41cf34b1c1778c4a0e81d069f50553ce1a23f68a0ba74b296420b2be92425d4995a43e51c018c2e8197ec2ec39305e87c56be8

  • C:\Users\Admin\AppData\Local\Temp\nstB3C6.tmp\nsRandom.dll

    Filesize

    21KB

    MD5

    ab467b8dfaa660a0f0e5b26e28af5735

    SHA1

    596abd2c31eaff3479edf2069db1c155b59ce74d

    SHA256

    db267d9920395b4badc48de04df99dfd21d579480d103cae0f48e6578197ff73

    SHA512

    7d002dc203997b8a4d8ec20c92cd82848e29d746414f4a61265c76d4afb12c05bce826fc63f4d2bd3d527f38506c391855767d864c37584df11b5db9ca008301

  • \Users\Admin\AppData\Local\Temp\nstB3C6.tmp\System.dll

    Filesize

    10KB

    MD5

    32465a07028b927b22c38e642c2cb836

    SHA1

    309cac412b2ecf6a36f6e989c828afcdd8c7a6e4

    SHA256

    eda545d4dcb37098a90fce9692d5094bb56897f04eff6d40e3dedd122a4d1292

    SHA512

    9d886a722bbbb5d8d77e97d256057fe685f1932042257a8382e13548fe835d01c64de65e2b5ad2c2ff99692b14c924e6ddb84797f6224f1772e8699b421e6aff

  • memory/2520-1515-0x00000000008A0000-0x00000000008B2000-memory.dmp

    Filesize

    72KB

  • memory/2520-1503-0x00000000008A0000-0x00000000008B2000-memory.dmp

    Filesize

    72KB

  • memory/2520-1511-0x00000000008A0000-0x00000000008B2000-memory.dmp

    Filesize

    72KB

  • memory/2520-1520-0x00000000008A0000-0x00000000008B2000-memory.dmp

    Filesize

    72KB

  • memory/2520-1524-0x00000000008A0000-0x00000000008B2000-memory.dmp

    Filesize

    72KB

  • memory/2520-1523-0x00000000008A0000-0x00000000008B2000-memory.dmp

    Filesize

    72KB

  • memory/2520-1537-0x00000000008A0000-0x00000000008B2000-memory.dmp

    Filesize

    72KB

  • memory/2520-1507-0x00000000008A0000-0x00000000008B2000-memory.dmp

    Filesize

    72KB

  • memory/2520-1487-0x00000000008A0000-0x00000000008B2000-memory.dmp

    Filesize

    72KB

  • memory/2520-1483-0x00000000008A0000-0x00000000008B2000-memory.dmp

    Filesize

    72KB

  • memory/2520-1441-0x00000000008A0000-0x00000000008BD000-memory.dmp

    Filesize

    116KB

  • memory/3888-1565-0x0000000000400000-0x000000000058F000-memory.dmp

    Filesize

    1.6MB

  • memory/3888-1568-0x0000000000400000-0x000000000058F000-memory.dmp

    Filesize

    1.6MB