Analysis

  • max time kernel
    116s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-12-2024 05:39

General

  • Target

    188cb12cec34f38fa549630338e59ab229b740c4e57cf6d09c1a1e15b77c84caN.exe

  • Size

    6.7MB

  • MD5

    2532c213b6769eb6b61fc4601f944280

  • SHA1

    5879ffcfac45b7fc55d530401a1c041a695a92c5

  • SHA256

    188cb12cec34f38fa549630338e59ab229b740c4e57cf6d09c1a1e15b77c84ca

  • SHA512

    4fd9f3891cb843ed5d87aae496168c46c22eed72aa0f5a0d8dbb500ce0fc6a7c6a743cb37b6355e74733e438a78cc630f62f068326ae2c1c922265413d988be5

  • SSDEEP

    49152:B3QVGCKKVwbbZzOIniBJy0BK7JHCRrdfOzsOaR0IxEgkUA1/gRE3RhgJIC9weS6d:B3QwCKusN1qBkJajAZj64/gZ85XH9js

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.

  • Drops file in System32 directory 1 IoCs
  • UPX packed file 6 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\188cb12cec34f38fa549630338e59ab229b740c4e57cf6d09c1a1e15b77c84caN.exe
    "C:\Users\Admin\AppData\Local\Temp\188cb12cec34f38fa549630338e59ab229b740c4e57cf6d09c1a1e15b77c84caN.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
    • Suspicious use of WriteProcessMemory
    PID:324
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      PID:3880

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:\Program Files\Common Files\System\symsrv.dll.000

    Filesize

    175B

    MD5

    1130c911bf5db4b8f7cf9b6f4b457623

    SHA1

    48e734c4bc1a8b5399bff4954e54b268bde9d54c

    SHA256

    eba08cc8182f379392a97f542b350ea0dbbe5e4009472f35af20e3d857eafdf1

    SHA512

    94e2511ef2c53494c2aff0960266491ffc0e54e75185427d1ccedae27c286992c754ca94cbb0c9ea36e3f04cd4eb7f032c551cf2d4b309f292906303f1a75fa0

  • memory/324-30-0x0000000000400000-0x0000000000B92000-memory.dmp

    Filesize

    7.6MB

  • memory/324-32-0x0000000000400000-0x0000000000B92000-memory.dmp

    Filesize

    7.6MB

  • memory/324-15-0x0000000000400000-0x0000000000B92000-memory.dmp

    Filesize

    7.6MB

  • memory/324-23-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/324-22-0x0000000000400000-0x0000000000B92000-memory.dmp

    Filesize

    7.6MB

  • memory/324-5-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/324-29-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/324-28-0x0000000000400000-0x0000000000B92000-memory.dmp

    Filesize

    7.6MB

  • memory/324-0-0x0000000000400000-0x0000000000B92000-memory.dmp

    Filesize

    7.6MB

  • memory/324-17-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/324-34-0x0000000000400000-0x0000000000B92000-memory.dmp

    Filesize

    7.6MB

  • memory/324-36-0x0000000000400000-0x0000000000B92000-memory.dmp

    Filesize

    7.6MB

  • memory/324-38-0x0000000000400000-0x0000000000B92000-memory.dmp

    Filesize

    7.6MB

  • memory/324-39-0x0000000000400000-0x0000000000B92000-memory.dmp

    Filesize

    7.6MB

  • memory/324-42-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/324-41-0x0000000000400000-0x0000000000B92000-memory.dmp

    Filesize

    7.6MB

  • memory/324-43-0x0000000000400000-0x0000000000B92000-memory.dmp

    Filesize

    7.6MB

  • memory/324-45-0x0000000000400000-0x0000000000B92000-memory.dmp

    Filesize

    7.6MB