Analysis

  • max time kernel
    214s
  • max time network
    256s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 18:59

General

  • Target

    3f812a92136133336a7d89465aad4ae416ab47d109187f660835aa5cf5b1f08c.exe

  • Size

    228KB

  • MD5

    1734f460205f993c3f8382a50b4a9f77

  • SHA1

    ed9e50fa76be0bbdf6c2c458af2b7714a36c30f2

  • SHA256

    3f812a92136133336a7d89465aad4ae416ab47d109187f660835aa5cf5b1f08c

  • SHA512

    90f517431205084ee38589673ca5b68b17a830e969d1b4701aee6f8c7416c7974a6623306228ad834713eb1c6515a34dbf941fb6cff562ecf03718e07c900a9f

  • SSDEEP

    3072:9Btrqne+0JcPF1cK1nu5cdUfv+BCpS7syO1JkBCSWm9zJZaJJWlRgA1:9Btrqne+VPF1nCS7syoEzJwJQRgA1

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Ramnit

    Ramnit is a versatile family that holds viruses, worms, and Trojans.

  • UAC bypass 3 TTPs 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Checks BIOS information in registry 2 TTPs 1 IoCs

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

  • Drops startup file 2 IoCs
  • Loads dropped DLL 6 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 24 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 48 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3f812a92136133336a7d89465aad4ae416ab47d109187f660835aa5cf5b1f08c.exe
    "C:\Users\Admin\AppData\Local\Temp\3f812a92136133336a7d89465aad4ae416ab47d109187f660835aa5cf5b1f08c.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Suspicious use of WriteProcessMemory
    PID:1500
    • C:\Users\Admin\AppData\Local\Temp\3f812a92136133336a7d89465aad4ae416ab47d109187f660835aa5cf5b1f08cmgr.exe
      C:\Users\Admin\AppData\Local\Temp\3f812a92136133336a7d89465aad4ae416ab47d109187f660835aa5cf5b1f08cmgr.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1068
      • C:\Windows\SysWOW64\svchost.exe
        C:\Windows\system32\svchost.exe
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:600
      • C:\Windows\SysWOW64\svchost.exe
        C:\Windows\system32\svchost.exe
        3⤵
        • Modifies WinLogon for persistence
        • UAC bypass
        • Checks BIOS information in registry
        • Drops startup file
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:904
      • C:\Users\Admin\AppData\Local\Temp\xtadfcittahpwcaq.exe
        "C:\Users\Admin\AppData\Local\Temp\xtadfcittahpwcaq.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:1060

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\3f812a92136133336a7d89465aad4ae416ab47d109187f660835aa5cf5b1f08cmgr.exe

    Filesize

    110KB

    MD5

    f71fbb1f80eb18d999ebf7523c245afd

    SHA1

    b498b16f05362c69a4de7a9820a6ead7c4af3735

    SHA256

    fdc2a8b0fd518ad4573b2b51b189ee22d7bcf903458ee7468f9fece27bce0e7f

    SHA512

    f0e8c10d8784d12b26c2c470a927b35d4f69d7a5662d31b0cc83519da1544a2cae19522ea9534d9437fdc2e1219eac79586ff4858bd223ea908784b12f28c48b

  • C:\Users\Admin\AppData\Local\Temp\3f812a92136133336a7d89465aad4ae416ab47d109187f660835aa5cf5b1f08cmgr.exe

    Filesize

    110KB

    MD5

    f71fbb1f80eb18d999ebf7523c245afd

    SHA1

    b498b16f05362c69a4de7a9820a6ead7c4af3735

    SHA256

    fdc2a8b0fd518ad4573b2b51b189ee22d7bcf903458ee7468f9fece27bce0e7f

    SHA512

    f0e8c10d8784d12b26c2c470a927b35d4f69d7a5662d31b0cc83519da1544a2cae19522ea9534d9437fdc2e1219eac79586ff4858bd223ea908784b12f28c48b

  • C:\Users\Admin\AppData\Local\Temp\xtadfcittahpwcaq.exe

    Filesize

    110KB

    MD5

    f71fbb1f80eb18d999ebf7523c245afd

    SHA1

    b498b16f05362c69a4de7a9820a6ead7c4af3735

    SHA256

    fdc2a8b0fd518ad4573b2b51b189ee22d7bcf903458ee7468f9fece27bce0e7f

    SHA512

    f0e8c10d8784d12b26c2c470a927b35d4f69d7a5662d31b0cc83519da1544a2cae19522ea9534d9437fdc2e1219eac79586ff4858bd223ea908784b12f28c48b

  • C:\Users\Admin\AppData\Local\Temp\xtadfcittahpwcaq.exe

    Filesize

    110KB

    MD5

    f71fbb1f80eb18d999ebf7523c245afd

    SHA1

    b498b16f05362c69a4de7a9820a6ead7c4af3735

    SHA256

    fdc2a8b0fd518ad4573b2b51b189ee22d7bcf903458ee7468f9fece27bce0e7f

    SHA512

    f0e8c10d8784d12b26c2c470a927b35d4f69d7a5662d31b0cc83519da1544a2cae19522ea9534d9437fdc2e1219eac79586ff4858bd223ea908784b12f28c48b

  • \Users\Admin\AppData\Local\Temp\3f812a92136133336a7d89465aad4ae416ab47d109187f660835aa5cf5b1f08cmgr.exe

    Filesize

    110KB

    MD5

    f71fbb1f80eb18d999ebf7523c245afd

    SHA1

    b498b16f05362c69a4de7a9820a6ead7c4af3735

    SHA256

    fdc2a8b0fd518ad4573b2b51b189ee22d7bcf903458ee7468f9fece27bce0e7f

    SHA512

    f0e8c10d8784d12b26c2c470a927b35d4f69d7a5662d31b0cc83519da1544a2cae19522ea9534d9437fdc2e1219eac79586ff4858bd223ea908784b12f28c48b

  • \Users\Admin\AppData\Local\Temp\3f812a92136133336a7d89465aad4ae416ab47d109187f660835aa5cf5b1f08cmgr.exe

    Filesize

    110KB

    MD5

    f71fbb1f80eb18d999ebf7523c245afd

    SHA1

    b498b16f05362c69a4de7a9820a6ead7c4af3735

    SHA256

    fdc2a8b0fd518ad4573b2b51b189ee22d7bcf903458ee7468f9fece27bce0e7f

    SHA512

    f0e8c10d8784d12b26c2c470a927b35d4f69d7a5662d31b0cc83519da1544a2cae19522ea9534d9437fdc2e1219eac79586ff4858bd223ea908784b12f28c48b

  • \Users\Admin\AppData\Local\Temp\xtadfcittahpwcaq.exe

    Filesize

    110KB

    MD5

    f71fbb1f80eb18d999ebf7523c245afd

    SHA1

    b498b16f05362c69a4de7a9820a6ead7c4af3735

    SHA256

    fdc2a8b0fd518ad4573b2b51b189ee22d7bcf903458ee7468f9fece27bce0e7f

    SHA512

    f0e8c10d8784d12b26c2c470a927b35d4f69d7a5662d31b0cc83519da1544a2cae19522ea9534d9437fdc2e1219eac79586ff4858bd223ea908784b12f28c48b

  • \Users\Admin\AppData\Local\Temp\xtadfcittahpwcaq.exe

    Filesize

    110KB

    MD5

    f71fbb1f80eb18d999ebf7523c245afd

    SHA1

    b498b16f05362c69a4de7a9820a6ead7c4af3735

    SHA256

    fdc2a8b0fd518ad4573b2b51b189ee22d7bcf903458ee7468f9fece27bce0e7f

    SHA512

    f0e8c10d8784d12b26c2c470a927b35d4f69d7a5662d31b0cc83519da1544a2cae19522ea9534d9437fdc2e1219eac79586ff4858bd223ea908784b12f28c48b

  • \Users\Admin\AppData\Local\Temp\xtadfcittahpwcaq.exe

    Filesize

    110KB

    MD5

    f71fbb1f80eb18d999ebf7523c245afd

    SHA1

    b498b16f05362c69a4de7a9820a6ead7c4af3735

    SHA256

    fdc2a8b0fd518ad4573b2b51b189ee22d7bcf903458ee7468f9fece27bce0e7f

    SHA512

    f0e8c10d8784d12b26c2c470a927b35d4f69d7a5662d31b0cc83519da1544a2cae19522ea9534d9437fdc2e1219eac79586ff4858bd223ea908784b12f28c48b

  • \Users\Admin\AppData\Local\Temp\xtadfcittahpwcaq.exe

    Filesize

    110KB

    MD5

    f71fbb1f80eb18d999ebf7523c245afd

    SHA1

    b498b16f05362c69a4de7a9820a6ead7c4af3735

    SHA256

    fdc2a8b0fd518ad4573b2b51b189ee22d7bcf903458ee7468f9fece27bce0e7f

    SHA512

    f0e8c10d8784d12b26c2c470a927b35d4f69d7a5662d31b0cc83519da1544a2cae19522ea9534d9437fdc2e1219eac79586ff4858bd223ea908784b12f28c48b

  • memory/600-62-0x0000000020010000-0x000000002001C000-memory.dmp

    Filesize

    48KB

  • memory/600-65-0x0000000020010000-0x000000002001C000-memory.dmp

    Filesize

    48KB

  • memory/600-64-0x0000000000000000-mapping.dmp

  • memory/904-78-0x0000000020010000-0x0000000020023000-memory.dmp

    Filesize

    76KB

  • memory/904-73-0x0000000000000000-mapping.dmp

  • memory/904-71-0x0000000020010000-0x0000000020023000-memory.dmp

    Filesize

    76KB

  • memory/1060-93-0x0000000000400000-0x0000000000437B80-memory.dmp

    Filesize

    222KB

  • memory/1060-92-0x0000000000400000-0x0000000000437B80-memory.dmp

    Filesize

    222KB

  • memory/1060-88-0x0000000000000000-mapping.dmp

  • memory/1068-76-0x0000000000400000-0x0000000000437B80-memory.dmp

    Filesize

    222KB

  • memory/1068-83-0x0000000000400000-0x0000000000437B80-memory.dmp

    Filesize

    222KB

  • memory/1068-57-0x0000000000000000-mapping.dmp

  • memory/1500-74-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1500-54-0x0000000075151000-0x0000000075153000-memory.dmp

    Filesize

    8KB

  • memory/1500-82-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1500-75-0x0000000000220000-0x0000000000258000-memory.dmp

    Filesize

    224KB