Analysis

  • max time kernel
    146s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-12-2024 06:51

General

  • Target

    83f4adc3e33552b3c5230c4af8ce9dfa45d7cb108212c5314b75da347302af23.exe

  • Size

    375KB

  • MD5

    441f9d1b31f6a618860c3002269473c4

  • SHA1

    ca35b32339a3c2b88f75714ed607ab8b050eb7c5

  • SHA256

    83f4adc3e33552b3c5230c4af8ce9dfa45d7cb108212c5314b75da347302af23

  • SHA512

    7b92730bc03064f8a697ac08438e75f2c0ee4d11398117ab3798b91a827a2fd7275aeec8f3d742dda8bb6e2b418acbc42e195521260758e3f18a90c4f12f51d6

  • SSDEEP

    6144:UQePa/g7rQGDa3e79hsA5XhXo9ji9SxCFLM0oS5POGxBV+UdvrEFp7hKvN:UQIA6vr5XuW6Cd9oSfBjvrEH72N

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.

  • UPX packed file 6 IoCs

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

  • Drops file in Program Files directory 2 IoCs
  • 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 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\83f4adc3e33552b3c5230c4af8ce9dfa45d7cb108212c5314b75da347302af23.exe
    "C:\Users\Admin\AppData\Local\Temp\83f4adc3e33552b3c5230c4af8ce9dfa45d7cb108212c5314b75da347302af23.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
    • Suspicious use of SetWindowsHookEx
    PID:620

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    67KB

    MD5

    7574cf2c64f35161ab1292e2f532aabf

    SHA1

    14ba3fa927a06224dfe587014299e834def4644f

    SHA256

    de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

    SHA512

    4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

  • C:\Program Files\Common Files\System\symsrv.dll.000

    Filesize

    175B

    MD5

    1130c911bf5db4b8f7cf9b6f4b457623

    SHA1

    48e734c4bc1a8b5399bff4954e54b268bde9d54c

    SHA256

    eba08cc8182f379392a97f542b350ea0dbbe5e4009472f35af20e3d857eafdf1

    SHA512

    94e2511ef2c53494c2aff0960266491ffc0e54e75185427d1ccedae27c286992c754ca94cbb0c9ea36e3f04cd4eb7f032c551cf2d4b309f292906303f1a75fa0

  • memory/620-28-0x00000000755E0000-0x0000000075643000-memory.dmp

    Filesize

    396KB

  • memory/620-27-0x00000000755F5000-0x00000000755F6000-memory.dmp

    Filesize

    4KB

  • memory/620-17-0x00000000755E0000-0x0000000075643000-memory.dmp

    Filesize

    396KB

  • memory/620-20-0x00000000755E0000-0x0000000075643000-memory.dmp

    Filesize

    396KB

  • memory/620-21-0x0000000000400000-0x000000000051F000-memory.dmp

    Filesize

    1.1MB

  • memory/620-22-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/620-0-0x0000000000400000-0x000000000051F000-memory.dmp

    Filesize

    1.1MB

  • memory/620-16-0x00000000755F5000-0x00000000755F6000-memory.dmp

    Filesize

    4KB

  • memory/620-5-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/620-34-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/620-38-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/620-50-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/620-61-0x00000000755E0000-0x0000000075643000-memory.dmp

    Filesize

    396KB

  • memory/620-63-0x00000000755E0000-0x0000000075643000-memory.dmp

    Filesize

    396KB