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Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/12/2024, 20:31

General

  • Target

    25f991d45930652cd1cb9b344f43954a24087940e99ac05d183d3f282cf313fb.exe

  • Size

    139KB

  • MD5

    d6508a76d84af408cd1cd7dffb114172

  • SHA1

    839f2eeab0324e4127d3b22a5b29068ad7616033

  • SHA256

    25f991d45930652cd1cb9b344f43954a24087940e99ac05d183d3f282cf313fb

  • SHA512

    c131eed0767d715fa017475d2ac8881478a3d59d727da80902e53e847728ae8008a048a30ab2c29dfd5ee8d9ad8fcba2919f631030e528bc71f1ce0038e50a9e

  • SSDEEP

    3072:KMQbfOJQ33f8PfJA+R4NvVwFmrtBjMG1fIo:KMKLnU3JAEwVwUrTvIo

Malware Config

Signatures

  • Floxif family
  • Floxif, Floodfix

    Floxif aka FloodFix is a file-changing trojan and backdoor written in C++.

  • Modifies WinLogon for persistence 2 TTPs 8 IoCs
  • Modifies visibility of file extensions in Explorer 2 TTPs 4 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 4 IoCs
  • Detects Floxif payload 1 IoCs
  • Disables RegEdit via registry modification 4 IoCs
  • Event Triggered Execution: Image File Execution Options Injection 1 TTPs 16 IoCs
  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 5 IoCs
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 8 IoCs
  • Enumerates connected drives 3 TTPs 64 IoCs

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

  • Network Service Discovery 1 TTPs 9 IoCs

    Attempt to gather information on host's network.

  • Drops file in System32 directory 29 IoCs
  • UPX packed file 3 IoCs

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

  • Drops file in Program Files directory 28 IoCs
  • Drops file in Windows directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 14 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry class 9 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 39 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\25f991d45930652cd1cb9b344f43954a24087940e99ac05d183d3f282cf313fb.exe
    "C:\Users\Admin\AppData\Local\Temp\25f991d45930652cd1cb9b344f43954a24087940e99ac05d183d3f282cf313fb.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1396
    • C:\Windows\SysWOW64\arp.exe
      arp -a
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:548
    • C:\Windows\SysWOW64\arp.exe
      arp -s 10.127.0.1 11-87-1e-03-9b-d7
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:3768
    • C:\Windows\SysWOW64\arp.exe
      arp -s 10.127.255.255 4d-f3-93-ed-44-57
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:3580
    • C:\Windows\SysWOW64\arp.exe
      arp -s 49.12.169.207 87-5a-0b-2a-0b-82
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:3832
    • C:\Windows\SysWOW64\arp.exe
      arp -s 224.0.0.22 46-a2-df-a0-a1-e2
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:3444
    • C:\Windows\SysWOW64\arp.exe
      arp -s 224.0.0.251 08-e3-45-ed-98-40
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:3656
    • C:\Windows\SysWOW64\arp.exe
      arp -s 224.0.0.252 d7-b5-bb-20-48-cf
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:1780
    • C:\Windows\SysWOW64\arp.exe
      arp -s 239.255.255.250 3a-63-1c-82-16-f0
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:812
    • C:\Windows\SysWOW64\arp.exe
      arp -s 255.255.255.255 fc-d1-2b-92-e9-de
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:3712
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\O52635Z\service.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\O52635Z\service.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Modifies visibility of file extensions in Explorer
      • Modifies visiblity of hidden/system files in Explorer
      • Disables RegEdit via registry modification
      • Event Triggered Execution: Image File Execution Options Injection
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Enumerates connected drives
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:4632
    • C:\Windows\M24727\smss.exe
      "C:\Windows\M24727\smss.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Modifies visibility of file extensions in Explorer
      • Modifies visiblity of hidden/system files in Explorer
      • Disables RegEdit via registry modification
      • Event Triggered Execution: Image File Execution Options Injection
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Enumerates connected drives
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:2248
    • C:\Windows\M24727\EmangEloh.exe
      "C:\Windows\M24727\EmangEloh.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Modifies visibility of file extensions in Explorer
      • Modifies visiblity of hidden/system files in Explorer
      • Disables RegEdit via registry modification
      • Event Triggered Execution: Image File Execution Options Injection
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Enumerates connected drives
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:1764
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\O52635Z\winlogon.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\O52635Z\winlogon.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Modifies visibility of file extensions in Explorer
      • Modifies visiblity of hidden/system files in Explorer
      • Disables RegEdit via registry modification
      • Event Triggered Execution: Image File Execution Options Injection
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Enumerates connected drives
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:2332

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    71KB

    MD5

    1458e1451cf701b363c99cfb81317789

    SHA1

    0dc90bc9a49f5d973e1649c0db09087ef3e0bb3f

    SHA256

    ace427ef87c8c1a9457e122c787d0b0c3b5a04d45f6df4d9a337e215def47c13

    SHA512

    b9ac9af373a93c6db20000bfe4d8c85a9df0c97a15d4989501f719a84f0cef2b72d3697a9a8b927b1cdc9a687cde6f1603fc9e5ba6bc4f63d461a8fadfd67e34

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\O52635Z\service.exe

    Filesize

    59KB

    MD5

    00bab82a8c391d7fd51c4c6a550b1dac

    SHA1

    47a37f6af7baccedfc6898161ea25171496a9fb9

    SHA256

    a18fe7f2aa757c497721335225e00bb1b9c3f7ecea167fa9f9a3426a9d2b86fa

    SHA512

    7f8f74b7d6ba0f6e9ceadd00420f809080d91ce646ffb87b90572bcb5148abd552986f8300cec741ffcf72dfc3e611d25490aced8587d607158044b71d4e89c0

  • C:\Windows\[TheMoonlight].txt

    Filesize

    109B

    MD5

    68c7836c8ff19e87ca33a7959a2bdff5

    SHA1

    cc5d0205bb71c10bbed22fe47e59b1f6817daab7

    SHA256

    883b19ec550f7ddb1e274a83d58d66c771ab10fefd136bab79483f2eb84e7fec

    SHA512

    3656005148788ed7ac8f5b5f8f6f4736c2dc4a94771291170e61666beb81e63be2a1a0f2913233b0e3f12ddfa7f1e89da9cd8323306413395ee78b2ece7fbfe8

  • C:\Windows\system\msvbvm60.dll

    Filesize

    1.4MB

    MD5

    25f62c02619174b35851b0e0455b3d94

    SHA1

    4e8ee85157f1769f6e3f61c0acbe59072209da71

    SHA256

    898288bd3b21d0e7d5f406df2e0b69a5bbfa4f241baf29a2cdf8a3cf4d4619f2

    SHA512

    f4529fd9eca4e4696f7f06874866ff98a1447a9b0d3a20ef0de54d4d694e2497fd39c452f73fab9b8a02962a7b2b88d1e85f6e35c7cbcb9555003c6828bebc3a

  • memory/1396-3-0x0000000010000000-0x0000000010033000-memory.dmp

    Filesize

    204KB

  • memory/1396-7-0x00000000021F0000-0x00000000021F2000-memory.dmp

    Filesize

    8KB

  • memory/1396-10-0x0000000000402000-0x0000000000405000-memory.dmp

    Filesize

    12KB

  • memory/1396-0-0x0000000000400000-0x0000000000422400-memory.dmp

    Filesize

    137KB

  • memory/1396-143-0x0000000000400000-0x0000000000422400-memory.dmp

    Filesize

    137KB

  • memory/1396-144-0x0000000010000000-0x0000000010033000-memory.dmp

    Filesize

    204KB

  • memory/1764-251-0x0000000000400000-0x0000000000422400-memory.dmp

    Filesize

    137KB

  • memory/1764-255-0x0000000000400000-0x0000000000422400-memory.dmp

    Filesize

    137KB

  • memory/1764-126-0x0000000000400000-0x0000000000422400-memory.dmp

    Filesize

    137KB

  • memory/1764-261-0x0000000000400000-0x0000000000422400-memory.dmp

    Filesize

    137KB

  • memory/1764-247-0x0000000000400000-0x0000000000422400-memory.dmp

    Filesize

    137KB

  • memory/2248-260-0x0000000000400000-0x0000000000422400-memory.dmp

    Filesize

    137KB

  • memory/2248-246-0x0000000000400000-0x0000000000422400-memory.dmp

    Filesize

    137KB

  • memory/2332-262-0x0000000000400000-0x0000000000422400-memory.dmp

    Filesize

    137KB

  • memory/2332-296-0x0000000000400000-0x0000000000422400-memory.dmp

    Filesize

    137KB

  • memory/2332-252-0x0000000000400000-0x0000000000422400-memory.dmp

    Filesize

    137KB

  • memory/2332-304-0x0000000000400000-0x0000000000422400-memory.dmp

    Filesize

    137KB

  • memory/2332-300-0x0000000000400000-0x0000000000422400-memory.dmp

    Filesize

    137KB

  • memory/2332-248-0x0000000000400000-0x0000000000422400-memory.dmp

    Filesize

    137KB

  • memory/2332-256-0x0000000000400000-0x0000000000422400-memory.dmp

    Filesize

    137KB

  • memory/2332-274-0x0000000000400000-0x0000000000422400-memory.dmp

    Filesize

    137KB

  • memory/2332-292-0x0000000000400000-0x0000000000422400-memory.dmp

    Filesize

    137KB

  • memory/2332-288-0x0000000000400000-0x0000000000422400-memory.dmp

    Filesize

    137KB

  • memory/2332-284-0x0000000000400000-0x0000000000422400-memory.dmp

    Filesize

    137KB

  • memory/2332-280-0x0000000000400000-0x0000000000422400-memory.dmp

    Filesize

    137KB

  • memory/2332-266-0x0000000000400000-0x0000000000422400-memory.dmp

    Filesize

    137KB

  • memory/2332-279-0x0000000000400000-0x0000000000422400-memory.dmp

    Filesize

    137KB

  • memory/2332-270-0x0000000000400000-0x0000000000422400-memory.dmp

    Filesize

    137KB

  • memory/4632-259-0x0000000000400000-0x0000000000422400-memory.dmp

    Filesize

    137KB

  • memory/4632-271-0x0000000000400000-0x0000000000422400-memory.dmp

    Filesize

    137KB

  • memory/4632-275-0x0000000000400000-0x0000000000422400-memory.dmp

    Filesize

    137KB

  • memory/4632-267-0x0000000000400000-0x0000000000422400-memory.dmp

    Filesize

    137KB

  • memory/4632-263-0x0000000000400000-0x0000000000422400-memory.dmp

    Filesize

    137KB

  • memory/4632-64-0x0000000000400000-0x0000000000422400-memory.dmp

    Filesize

    137KB

  • memory/4632-224-0x0000000000400000-0x0000000000422400-memory.dmp

    Filesize

    137KB

  • memory/4632-245-0x0000000000400000-0x0000000000422400-memory.dmp

    Filesize

    137KB

  • memory/4632-249-0x0000000000400000-0x0000000000422400-memory.dmp

    Filesize

    137KB

  • memory/4632-253-0x0000000000400000-0x0000000000422400-memory.dmp

    Filesize

    137KB

  • memory/4632-60-0x0000000000400000-0x0000000000422400-memory.dmp

    Filesize

    137KB