Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    16-12-2024 23:29

General

  • Target

    aab513d16f0e41a492b3054d1bf0e2f63980c8ecbeaf401f88631f771f169f93N.exe

  • Size

    1.8MB

  • MD5

    d72549ff536b06e99c2f86274b79f830

  • SHA1

    00822a589f22f9d72a9057a4c697273b7370eb58

  • SHA256

    aab513d16f0e41a492b3054d1bf0e2f63980c8ecbeaf401f88631f771f169f93

  • SHA512

    8a79ecfdedcf514af38e35491b5061523eb0fa473ad7eb920084d360fb76bc802775fcf4af42e49ca60b7c8e9772c34246272591830a65189ac0b6d35e1c74c0

  • SSDEEP

    49152:uhua8pMpRzsOV9bzmkSMDgOPIOY9ayVyPxCr5G:uhudpWHyX9G

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 2 IoCs
  • Enumerates connected drives 3 TTPs 24 IoCs

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

  • UPX packed file 8 IoCs

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

  • Drops file in Program Files directory 5 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\aab513d16f0e41a492b3054d1bf0e2f63980c8ecbeaf401f88631f771f169f93N.exe
    "C:\Users\Admin\AppData\Local\Temp\aab513d16f0e41a492b3054d1bf0e2f63980c8ecbeaf401f88631f771f169f93N.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 FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of SetWindowsHookEx
    PID:2744

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    175B

    MD5

    1130c911bf5db4b8f7cf9b6f4b457623

    SHA1

    48e734c4bc1a8b5399bff4954e54b268bde9d54c

    SHA256

    eba08cc8182f379392a97f542b350ea0dbbe5e4009472f35af20e3d857eafdf1

    SHA512

    94e2511ef2c53494c2aff0960266491ffc0e54e75185427d1ccedae27c286992c754ca94cbb0c9ea36e3f04cd4eb7f032c551cf2d4b309f292906303f1a75fa0

  • \PROGRA~2\MICROS~1\Office14\GROOVEEX.DLL.tmp

    Filesize

    4.1MB

    MD5

    d6bc29177b673e0f270fb8e83fa7b591

    SHA1

    529c3d43ee7a8dcea4a08685d49d759680ab04bd

    SHA256

    e6370ca285f516e4ac234a1fcc24d4a295c8e2aa605b3329216afff3b0e9e9e1

    SHA512

    24c130bb6a2a1b47ea2760c11ddf1386f222894ee1933541640d04dee11644899fe24806ca95cb5388a971f4a264b3405f20c8ece46c48295204221685de5b78

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

    Filesize

    67KB

    MD5

    7574cf2c64f35161ab1292e2f532aabf

    SHA1

    14ba3fa927a06224dfe587014299e834def4644f

    SHA256

    de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

    SHA512

    4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

  • memory/2744-22-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2744-6-0x0000000000B70000-0x0000000000D24000-memory.dmp

    Filesize

    1.7MB

  • memory/2744-15-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2744-16-0x0000000000B70000-0x0000000000D24000-memory.dmp

    Filesize

    1.7MB

  • memory/2744-18-0x0000000074350000-0x000000007475B000-memory.dmp

    Filesize

    4.0MB

  • memory/2744-3-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2744-27-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2744-5-0x0000000000B71000-0x0000000000B72000-memory.dmp

    Filesize

    4KB

  • memory/2744-34-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2744-33-0x0000000000B70000-0x0000000000D24000-memory.dmp

    Filesize

    1.7MB

  • memory/2744-39-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2744-38-0x0000000000B70000-0x0000000000D24000-memory.dmp

    Filesize

    1.7MB

  • memory/2744-43-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB