Analysis

  • max time kernel
    121s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    09/01/2025, 17:56

General

  • Target

    2025-01-09_df24113dc443dd4b0d5ff1da0921bac6_avoslocker_cobalt-strike_floxif_luca-stealer.exe

  • Size

    665KB

  • MD5

    df24113dc443dd4b0d5ff1da0921bac6

  • SHA1

    2e1eb7dca17144d92aa5ec3d1eea7e9641871c13

  • SHA256

    22bcff79e8597817481c8679f8368a2bb26e43c3477338d0550914995eb18f09

  • SHA512

    eb76a1638d0ccb620bc17c43157b9146cd92b1e1c0446bfa582d033a904453eff4f556f16ba39a3b72516f79bb3307250ed59474d26e09940b004b609c138af7

  • SSDEEP

    12288:XubXbhafJcLln5QwnVWqqPIBONhxsU/EbBjvrEH7u:Xurd90r/xsU/EhrEH7u

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 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 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025-01-09_df24113dc443dd4b0d5ff1da0921bac6_avoslocker_cobalt-strike_floxif_luca-stealer.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-01-09_df24113dc443dd4b0d5ff1da0921bac6_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:2096

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    6KB

    MD5

    75e67a121a37a73e9b9081b460590b53

    SHA1

    1fd28d17a8b317da4e22b3efadc7552fd58e6c8d

    SHA256

    0ce9ed818609f2ea0784c063a79ff060da918463114b7ba346207eae07489956

    SHA512

    94c634fe640255ce5fac9519440e84f8f6cbf3697b7b4282e8187b1b3b22b1e79148a339a825970db6e24a0e55db999e3048135b613ea8b148ab55ba7442196f

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

    Filesize

    67KB

    MD5

    7574cf2c64f35161ab1292e2f532aabf

    SHA1

    14ba3fa927a06224dfe587014299e834def4644f

    SHA256

    de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

    SHA512

    4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

  • memory/2096-3-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2096-61-0x0000000000D30000-0x0000000000DCA000-memory.dmp

    Filesize

    616KB

  • memory/2096-62-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB