Analysis

  • max time kernel
    114s
  • max time network
    121s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-08-2024 22:19

General

  • Target

    7e57b18704b36d9a048cedd62be3b3f0N.exe

  • Size

    256KB

  • MD5

    7e57b18704b36d9a048cedd62be3b3f0

  • SHA1

    7afe81fd058883797ccadf922b87842d7771265c

  • SHA256

    c7192eeb1e859d810cde77b27c1fd51f41d0bb11e198c695df0ae2886cd2cb24

  • SHA512

    b8ac2d050ca7ea9003d47d2d6188e10597981dd802f7abd2406bf4dda6019d57a5d67524ab7e1fb5950abec2034af6bda66415932776bd585af8768593fa7eea

  • SSDEEP

    3072:WB+iGg3inS7e8VdQwmzQNcthJSKkpxj3yVf6Iu2lQBV+UdE+rECWp7hKADp:WBJynRqQIkV2BV+UdvrEFp7hKAd

Malware Config

Signatures

  • 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
  • UPX packed file 9 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Enumerates connected drives 3 TTPs 24 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\7e57b18704b36d9a048cedd62be3b3f0N.exe
    "C:\Users\Admin\AppData\Local\Temp\7e57b18704b36d9a048cedd62be3b3f0N.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:720
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4228,i,10369132178352108590,11047993562598554317,262144 --variations-seed-version --mojo-platform-channel-handle=4184 /prefetch:8
    1⤵
      PID:4700

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    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/720-15-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/720-7-0x0000000000408000-0x000000000040C000-memory.dmp

      Filesize

      16KB

    • memory/720-13-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/720-14-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/720-0-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/720-20-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/720-5-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/720-25-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/720-28-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/720-29-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/720-34-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB