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Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    01/06/2024, 01:29

General

  • Target

    a48c0a96db70e3bb11907a17ff84cea6d0c964caa249f2cf019b175d795b9424.exe

  • Size

    224KB

  • MD5

    8b0f232d13fd4f1046c36e14c3519e2b

  • SHA1

    bff12b6793d73c6a1d73ca78359cbac87af943e4

  • SHA256

    a48c0a96db70e3bb11907a17ff84cea6d0c964caa249f2cf019b175d795b9424

  • SHA512

    ab67607e3c93de9a7b8a9562e56b9a7d302c2fc8e0f4166f556f25530e4ab8c9753f046bfd65b3cf6770f97d60073ca6ccb4257c46ad11726c8e1ee57b3d5506

  • SSDEEP

    6144:1Is9OKofHfHTXQLzgvnzHPowYbvrjD/L7QPbg/Dr0T3rnXLHf7zjPFsEPAsKCtZy:EKofHfHTXQLzgvnzHPowYbvrjD/L7QPo

Malware Config

Signatures

  • UPX dump on OEP (original entry point) 12 IoCs
  • Drops file in Drivers directory 1 IoCs
  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 6 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 19 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Maps connected drives based on registry 3 TTPs 6 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Drops file in System32 directory 64 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 64 IoCs
  • Modifies registry class 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a48c0a96db70e3bb11907a17ff84cea6d0c964caa249f2cf019b175d795b9424.exe
    "C:\Users\Admin\AppData\Local\Temp\a48c0a96db70e3bb11907a17ff84cea6d0c964caa249f2cf019b175d795b9424.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Maps connected drives based on registry
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2840
    • C:\Windows\SysWOW64\ctfmen.exe
      ctfmen.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2568
      • C:\Windows\SysWOW64\smnss.exe
        C:\Windows\system32\smnss.exe
        3⤵
        • Drops file in Drivers directory
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        • Enumerates connected drives
        • Maps connected drives based on registry
        • Drops file in System32 directory
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • Modifies registry class
        • Suspicious use of AdjustPrivilegeToken
        PID:2768

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\satornas.dll

    Filesize

    183B

    MD5

    0dee91bf3cc2011c93901991da6c5ef6

    SHA1

    372124eeba63f22317dca7eea9331867147b14d6

    SHA256

    d0e9a9d26e676ba3cfbc0ed0975e043b60dc0840e678f67c35e4abc39f960b1b

    SHA512

    8cbf5c097906fea340dbf16c1caafb9a675285e3f4de6460c9a57eb1b289776422fcd9ea3ddf03571180bfb3558da2b45062d30e7ed76641b2415080eb2f7e14

  • \Windows\SysWOW64\ctfmen.exe

    Filesize

    4KB

    MD5

    a9dba31ebf8d43429c501af0838c0f2b

    SHA1

    5b70c38d9e0b64b28d124758acac5871386db05a

    SHA256

    78370b166228af890b22d274b984b62b878b4dca82832757f21dff3a9ab6b66c

    SHA512

    db284b96c3d6f8496342a1361998e363810f2ebeed37fc1a6f11963e632e879a45c92da5164e13199cc7213a11eec7eba19ef496cf26409d27c9b66b69eb28d8

  • \Windows\SysWOW64\shervans.dll

    Filesize

    8KB

    MD5

    cb5af6baa6e5257b7c86c6df860537a8

    SHA1

    1b3977f0de3167fe55b3ff4e141a9229f93c5519

    SHA256

    e0b4156f0e129c77881dfed539fa58ca26b97fb6b8a3936c30a20aafc0e9b12e

    SHA512

    ee0706950e5c3fae176ec2675847afaa39b437fcdbf3905619eb557745de21b39bf2f61596883a76e0a2a3e53e66ee939fb860deb8bd0d7298366e0e84be7549

  • \Windows\SysWOW64\smnss.exe

    Filesize

    224KB

    MD5

    14c25df96c4d7286b830c8e7266fe527

    SHA1

    903140cbc857ccfe66f3f54c671acb928156d730

    SHA256

    009a03d0d961c2a0510ede58ddbeed38312580698c60b96e421a99ef5d485590

    SHA512

    6d20dce500cc46bd1cdca012c60d60a1180d738aea6e20689664bc62eb0cf31142291cc9bee40539e4d7ac34f5af04e07371025ad3a9febb03d71f543536644d

  • memory/2568-33-0x00000000003C0000-0x00000000003F2000-memory.dmp

    Filesize

    200KB

  • memory/2568-29-0x00000000003C0000-0x00000000003F2000-memory.dmp

    Filesize

    200KB

  • memory/2568-35-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2768-42-0x0000000010000000-0x000000001000D000-memory.dmp

    Filesize

    52KB

  • memory/2768-45-0x0000000000400000-0x0000000000432000-memory.dmp

    Filesize

    200KB

  • memory/2840-26-0x0000000010000000-0x000000001000D000-memory.dmp

    Filesize

    52KB

  • memory/2840-25-0x0000000000400000-0x0000000000432000-memory.dmp

    Filesize

    200KB

  • memory/2840-18-0x0000000000340000-0x0000000000349000-memory.dmp

    Filesize

    36KB

  • memory/2840-0-0x0000000000400000-0x0000000000432000-memory.dmp

    Filesize

    200KB

  • memory/2840-14-0x0000000010000000-0x000000001000D000-memory.dmp

    Filesize

    52KB