Analysis

  • max time kernel
    93s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-12-2024 18:49

General

  • Target

    2024-12-12_1d33d03a375c15e188661851aacaa838_avoslocker_cobalt-strike_floxif_luca-stealer.exe

  • Size

    662KB

  • MD5

    1d33d03a375c15e188661851aacaa838

  • SHA1

    0f630e2fa35f1bdf45db397c3da406f1f2e24f20

  • SHA256

    e64fed811a65133ece78f91795b9a110ca424f8e52199a9173a0d887f98cbad4

  • SHA512

    6488e86660d7c650a711c9bceef5b5faeab4c2f0145f713a24eb9064045657eaa0e463679cd117fb7481e0f15651ba90006fb66cbd7a5c649ad5e1d01287d4e7

  • SSDEEP

    12288:9gkJRR603BBKlG3j87HnVWqqPIBONhxsUzb95SBjvrEH7j:9gkJXl+m/xsUzPUrEH7j

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
  • 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 3 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-12-12_1d33d03a375c15e188661851aacaa838_avoslocker_cobalt-strike_floxif_luca-stealer.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-12-12_1d33d03a375c15e188661851aacaa838_avoslocker_cobalt-strike_floxif_luca-stealer.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:4572

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

  • C:\Users\Admin\AppData\Local\Temp\log.txt

    Filesize

    6KB

    MD5

    a46a76d1c71616f79d692b0a8b5dbb29

    SHA1

    e43f53dc4692a2bdb8328bb9dc51149da5ef17b3

    SHA256

    13836beced2bc67ee60d57432306e7879a3bba1240e67fb69592479fdc221bbb

    SHA512

    64778f9a7b794bd0590a2b4e9b0c595c54980e81690ad7e3d5324aa361e6d061ad5e4820c71e94274087f56d39fbc10266a32bf5da8af57da78dfc06f44e8de0

  • memory/4572-2-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/4572-63-0x0000000000550000-0x00000000005E8000-memory.dmp

    Filesize

    608KB

  • memory/4572-65-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB