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Analysis

  • max time kernel
    149s
  • 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
    28/01/2025, 02:03

General

  • Target

    2025-01-28_8151ddfe3c9a90fbef4d064a8912e772_bkransomware_floxif.exe

  • Size

    810KB

  • MD5

    8151ddfe3c9a90fbef4d064a8912e772

  • SHA1

    63d05a974b0972501881d9f4a09773ed0e51e4c1

  • SHA256

    4724b7b26f08518e125265bd2f8ea1958d970388bdac0cab8f40dc7ebed5bd99

  • SHA512

    be3fc63a91804801f04ad6b1378dee3df2bd2250816250084f743c72517d743f2d0f4cbe425909dca28bc7596ea26c5739c434fa4db329174e7326bda10b2d08

  • SSDEEP

    24576:8Ke0obHxcNH9OhQATWNsHaVaOm1bNGarEH7n:8mxYSAGsHaVaVhNGB

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
  • 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.

  • Drops file in Program Files directory 1 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 use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025-01-28_8151ddfe3c9a90fbef4d064a8912e772_bkransomware_floxif.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-01-28_8151ddfe3c9a90fbef4d064a8912e772_bkransomware_floxif.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:4516

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/4516-4-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/4516-6-0x0000000000921000-0x0000000000922000-memory.dmp

    Filesize

    4KB

  • memory/4516-8-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/4516-7-0x0000000000920000-0x00000000009D5000-memory.dmp

    Filesize

    724KB