Analysis

  • max time kernel
    117s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    14-12-2024 16:23

General

  • Target

    2024-12-14_d61a4f7e4e8729fac8d185d52e8c5688_avoslocker_cobalt-strike_floxif_luca-stealer.exe

  • Size

    665KB

  • MD5

    d61a4f7e4e8729fac8d185d52e8c5688

  • SHA1

    e9f138d4b27f86c6c112e326357050aaee258304

  • SHA256

    9f15590e60d0b1622462c9e540c56a88c0836b4e792230c6b7d1de031f73dbf6

  • SHA512

    9043be8918f3cf107d4b33c53b6e9640c05eff5fde340848088cec0509195dae86db662a112337c66c6f37bf761a56e0c18ebe514498bd5d503a37bfc59d3728

  • SSDEEP

    12288:XubXFrBafJcLln5QwnVWqqPIBONhxsU/EbBjvrEH72:XurT90r/xsU/EhrEH72

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 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-12-14_d61a4f7e4e8729fac8d185d52e8c5688_avoslocker_cobalt-strike_floxif_luca-stealer.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-12-14_d61a4f7e4e8729fac8d185d52e8c5688_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:1704

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    4KB

    MD5

    30eb3ecfd47e28fe7e8bfc3e731a646c

    SHA1

    7bd23206180b066c8f434d9d6a82400de8b0226b

    SHA256

    ad57d9aac9fbb64b84895700b4113e06aa0f0f9911fb413320756f8ec6fa2abf

    SHA512

    40085ad14efc497e57f414256eed36b3b82a8e582631cccda7a83b414c74ca56392cffe8d46cde1ad737452cd1b731b63ac45100fc5df90d484a5b1c320eceea

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

    Filesize

    6KB

    MD5

    09fd43ce38ac760c1fd776c83e105062

    SHA1

    2bb30c1317736f25134348510f0bf9067c6284f3

    SHA256

    346cfacb3b03304d855c3678676a5c4d120657621a16318556b2a2fb9c7b57ae

    SHA512

    23bcb4e6b2747b4f8d43f458e9a71b2bd8fd68b6a0915a9a759fa779eabef4487d534e023881e11f1d1d5f622453d4ec4ef52ece9de34d92ed1c70f8616614d7

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

    Filesize

    67KB

    MD5

    7574cf2c64f35161ab1292e2f532aabf

    SHA1

    14ba3fa927a06224dfe587014299e834def4644f

    SHA256

    de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

    SHA512

    4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

  • memory/1704-3-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/1704-61-0x00000000000C0000-0x000000000015A000-memory.dmp

    Filesize

    616KB

  • memory/1704-63-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB