Analysis

  • max time kernel
    140s
  • max time network
    17s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    16-09-2024 18:50

General

  • Target

    utt48BE.tmp.exe

  • Size

    500KB

  • MD5

    3a0262aa2276d4b3d433425ca5768c02

  • SHA1

    3ace9965f9a29e788cd2e372034e8e0f43b56ce1

  • SHA256

    6ef732cd43a424e299f419b6a30ea9762177e3d278ab94c95acb541c68b13d5d

  • SHA512

    0d50dd03bc7583abdaca40b712a368926a72227c69acae97fa3f50eee8cabfd2f0057b4e9746917ff30ec051f9365f98ff0f1d543a32941f5695b1ccc4915ed3

  • SSDEEP

    12288:NDE9UkwbswPyoLbMmiWm7IXFCb6xPiBjvrEH7i4:dQpwbr6mYKm7aL9ErEH7b

Malware Config

Signatures

  • 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
  • Program crash 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
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\utt48BE.tmp.exe
    "C:\Users\Admin\AppData\Local\Temp\utt48BE.tmp.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2332
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2332 -s 248
      2⤵
      • Program crash
      PID:2752

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    67KB

    MD5

    7574cf2c64f35161ab1292e2f532aabf

    SHA1

    14ba3fa927a06224dfe587014299e834def4644f

    SHA256

    de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

    SHA512

    4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

  • memory/2332-3-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2332-5-0x0000000000263000-0x0000000000264000-memory.dmp

    Filesize

    4KB

  • memory/2332-6-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2332-7-0x0000000000260000-0x000000000037E000-memory.dmp

    Filesize

    1.1MB