Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    09-09-2024 15:51

General

  • Target

    2024-09-09_d17ed5c1bc89be93e770271ec0871a3b_bkransomware_floxif.exe

  • Size

    1.9MB

  • MD5

    d17ed5c1bc89be93e770271ec0871a3b

  • SHA1

    0fb49162b3a190b858a4b88de7f5541644e2b03c

  • SHA256

    134f1cd6d6913f88940a4997aec692412f255630eb75b16c8a33a66775686544

  • SHA512

    81c2d266ec08e136c80e010385107bc5224c3c572e08d711983b24ddf47282bb149c032282c8c47fdff8222900e531288ac95a742afae471b556c5d6b9bfc573

  • SSDEEP

    49152:3UtFJMsd8OdZ9S7HV6lobLZ0H/Kl8jxNUTxDnOmwmVn8R9kWr:EtnMsd8OH9MV6loHZ0a8lNSDnOmwmg

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.

  • Loads dropped DLL 1 IoCs
  • UPX packed file 3 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 1 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 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-09_d17ed5c1bc89be93e770271ec0871a3b_bkransomware_floxif.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-09_d17ed5c1bc89be93e770271ec0871a3b_bkransomware_floxif.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:1984

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    67KB

    MD5

    7574cf2c64f35161ab1292e2f532aabf

    SHA1

    14ba3fa927a06224dfe587014299e834def4644f

    SHA256

    de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

    SHA512

    4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

  • memory/1984-3-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/1984-11-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/1984-9-0x0000000001220000-0x0000000001402000-memory.dmp

    Filesize

    1.9MB