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Analysis

  • max time kernel
    93s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/12/2024, 10:25

General

  • Target

    f16b300aac333eccc01cfa5d1be549d5e4dd4b1f8067309560f67ebbc0b2b5c0N.exe

  • Size

    402KB

  • MD5

    f597c23ddafaa4737d7ebe04fe2e56b0

  • SHA1

    00b7f72a6baa5c762b6774f6c544fb1a73267698

  • SHA256

    f16b300aac333eccc01cfa5d1be549d5e4dd4b1f8067309560f67ebbc0b2b5c0

  • SHA512

    12c7533b5bccd4467173667a3d1259da45e500224b84cde6501996942895e5eb74eeb4b42a9e7784460f651d50f820d4ba24242e563a428f917bc7473d5d577f

  • SSDEEP

    12288:k6Wq4aaE6KwyMh0Y2D1PqLlmYDFBjvrEH7D9:ithEcaPqL1HrEH7D9

Malware Config

Signatures

  • Floxif family
  • 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.

  • Loads dropped DLL 1 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

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

  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • UPX packed file 5 IoCs

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

  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\f16b300aac333eccc01cfa5d1be549d5e4dd4b1f8067309560f67ebbc0b2b5c0N.exe
    "C:\Users\Admin\AppData\Local\Temp\f16b300aac333eccc01cfa5d1be549d5e4dd4b1f8067309560f67ebbc0b2b5c0N.exe"
    1⤵
    • 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
    PID:1624

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    67KB

    MD5

    7574cf2c64f35161ab1292e2f532aabf

    SHA1

    14ba3fa927a06224dfe587014299e834def4644f

    SHA256

    de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

    SHA512

    4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

  • memory/1624-0-0x0000000000400000-0x00000000004E1000-memory.dmp

    Filesize

    900KB

  • memory/1624-5-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/1624-15-0x00000000759E5000-0x00000000759E6000-memory.dmp

    Filesize

    4KB

  • memory/1624-16-0x00000000759D0000-0x0000000075A33000-memory.dmp

    Filesize

    396KB

  • memory/1624-19-0x00000000759D0000-0x0000000075A33000-memory.dmp

    Filesize

    396KB

  • memory/1624-22-0x0000000000400000-0x00000000004E1000-memory.dmp

    Filesize

    900KB

  • memory/1624-24-0x00000000759D0000-0x0000000075A33000-memory.dmp

    Filesize

    396KB

  • memory/1624-23-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB