Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/07/2024, 06:35

General

  • Target

    f885b625bb844eea4fa2b974eaeea0e2f1b5db792ba991243f3b2d004a5ccb37.exe

  • Size

    2.4MB

  • MD5

    dd47d3ccc6024d2ba9900cf3ce891437

  • SHA1

    2f8b96944b65f96e32ca200b00a49c58e2285a33

  • SHA256

    f885b625bb844eea4fa2b974eaeea0e2f1b5db792ba991243f3b2d004a5ccb37

  • SHA512

    09a6f78545fef73c629c5a0945a259eb0dc7438e0734243f394d443bed3d67cf856567898a58b210fbaee092dae1a03441a66d4e6e06511abe5c04811c73b6a6

  • SSDEEP

    49152:9edZBy3MKKJcwxnxi6r9KrRcwiaPfZHjbOlqUsu55rmrK3I2:9e/80pbcrRcw1Pf5jbG8u55arKr

Malware Config

Signatures

  • Floxif, Floodfix

    Floxif aka FloodFix is a file-changing trojan and backdoor written in C++.

  • Detects Floxif payload 1 IoCs
  • Event Triggered Execution: AppInit DLLs 1 TTPs

    Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.

  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 6 IoCs
  • UPX packed file 5 IoCs

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

  • Enumerates connected drives 3 TTPs 1 IoCs

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

  • Drops file in Program Files directory 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 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f885b625bb844eea4fa2b974eaeea0e2f1b5db792ba991243f3b2d004a5ccb37.exe
    "C:\Users\Admin\AppData\Local\Temp\f885b625bb844eea4fa2b974eaeea0e2f1b5db792ba991243f3b2d004a5ccb37.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3580
    • C:\Users\Admin\AppData\Local\Temp\f885b625bb844eea4fa2b974eaeea0e2f1b5db792ba991243f3b2d004a5ccb37.exe
      "C:\Users\Admin\AppData\Local\Temp\f885b625bb844eea4fa2b974eaeea0e2f1b5db792ba991243f3b2d004a5ccb37.exe" -el -s2 "-dX:\Tools\Portable_Vgo2000" "-sp"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:5088

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Program Files (x86)\Common Files\Microsoft Shared\ink\tiptsf.dll.tmp

          Filesize

          589KB

          MD5

          f7d534dc69f60ad1b658a56841639e47

          SHA1

          435685cf125391818c74c084fc003e3fd97627e2

          SHA256

          150bd9bfe6822219e71b977887e8b41ad7269144520c44389a9fc07e335bf464

          SHA512

          c31ceb5b594b6c703b8c7c962e8a897f288c41231ffeac821d278effd8151126a96cde7e9a1f0016392b5f88e99771caf1bcb8c6f09ed06a298287344884a664

        • C:\Program Files (x86)\Common Files\Microsoft Shared\ink\tiptsf.dll.tmp

          Filesize

          589KB

          MD5

          8b1cd0fc4ae9980f8298031f18f7e5dd

          SHA1

          aea17fe91c6dc82154ca818db3bb3e749d9c48d5

          SHA256

          7dc1f71aa016930c5f5328da7fa65f915699723193cefe66587868a44060a5b9

          SHA512

          10d4e6ffd2ae66a1bf0718e4f74d4819608b143d6e4d305cbc7155440efe4c8225e82b6c9c6b3165300ffd54154ab665959a5954494c425c3119f3f2e2f1a3c9

        • C:\Program Files\Common Files\System\symsrv.dll

          Filesize

          67KB

          MD5

          7574cf2c64f35161ab1292e2f532aabf

          SHA1

          14ba3fa927a06224dfe587014299e834def4644f

          SHA256

          de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

          SHA512

          4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

        • C:\Users\Admin\AppData\Local\Temp\A1D26E2\C3FC7B413E0.tmp

          Filesize

          2.3MB

          MD5

          59910de3291fa9293f97d4999cd856bf

          SHA1

          acca7c6f46ec8be28972c5f67194a98ea61f526b

          SHA256

          87aaf8c93652ce12efd8f4fcb2c3297c12378ae8cc6da3a4f409298270a30c36

          SHA512

          34d6352629ad8023b2c52cf2d6feb801ce03a5e4bb29ea9c92c82a8b6f5b03ac2b4bbac8e5606e72baf1facf24370388a01cab586435a9dbfae9be8a1be00b81

        • memory/3580-6-0x00000000006E0000-0x000000000077C000-memory.dmp

          Filesize

          624KB

        • memory/3580-10-0x00000000006E0000-0x000000000077C000-memory.dmp

          Filesize

          624KB

        • memory/3580-5-0x00000000006E3000-0x00000000006E4000-memory.dmp

          Filesize

          4KB

        • memory/3580-3-0x0000000010000000-0x0000000010030000-memory.dmp

          Filesize

          192KB

        • memory/3580-33-0x00000000006E0000-0x000000000077C000-memory.dmp

          Filesize

          624KB

        • memory/3580-35-0x0000000010000000-0x0000000010030000-memory.dmp

          Filesize

          192KB

        • memory/5088-14-0x0000000010000000-0x0000000010030000-memory.dmp

          Filesize

          192KB

        • memory/5088-17-0x0000000002930000-0x0000000002960000-memory.dmp

          Filesize

          192KB

        • memory/5088-31-0x0000000010000000-0x0000000010030000-memory.dmp

          Filesize

          192KB

        • memory/5088-30-0x00000000006E0000-0x000000000077C000-memory.dmp

          Filesize

          624KB