Analysis

  • max time kernel
    100s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-01-2025 22:27

General

  • Target

    425296353f916d4cc81a600dc611268cbb53fe46d02cdad5955cac9628c755d8.exe

  • Size

    834KB

  • MD5

    1a6643d549ed0d834a82f90c6db49a70

  • SHA1

    29fbf25ecceecef74f1167637215d97f72989926

  • SHA256

    425296353f916d4cc81a600dc611268cbb53fe46d02cdad5955cac9628c755d8

  • SHA512

    3d5e771b1f240b8a54563b4aa1e907eeb5f84e79574d80cb700879055aae149a6ed8a4197386a40677f1527397805b5ed4b01e3babe22126dcc8ac21d1aac703

  • SSDEEP

    12288:3Swwn4oOZcaQYn3htObKmmOo3/UuSLekt0YAwgeKBjvrEH75:3Re4oG3hAU3/U/Lekt0YAwge8rEH75

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
  • Manipulates Digital Signatures 1 TTPs 5 IoCs

    Attackers can apply techniques such as changing the registry keys of authenticode & Cryptography to obtain their binary as valid.

  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Executes dropped EXE 1 IoCs
  • 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 30 IoCs
  • UPX packed file 6 IoCs

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

  • Drops file in Program Files directory 2 IoCs
  • Drops file in Windows 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.

  • Checks SCSI registry key(s) 3 TTPs 26 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Modifies data under HKEY_USERS 41 IoCs
  • Modifies registry class 33 IoCs
  • Modifies system certificate store 2 TTPs 11 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\425296353f916d4cc81a600dc611268cbb53fe46d02cdad5955cac9628c755d8.exe
    "C:\Users\Admin\AppData\Local\Temp\425296353f916d4cc81a600dc611268cbb53fe46d02cdad5955cac9628c755d8.exe"
    1⤵
    • Manipulates Digital Signatures
    • Loads dropped DLL
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4252
    • C:\Users\Admin\Documents\installer_x64.exe
      C:\Users\Admin\Documents\installer_x64.exe your_file.inf
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:1008
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k DcomLaunch -p -s DeviceInstall
    1⤵
    • Drops file in Windows directory
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3812
    • C:\Windows\system32\DrvInst.exe
      DrvInst.exe "4" "0" "C:\Users\Admin\AppData\Local\Temp\{72a27f06-a213-a342-9691-4c96e0399466}\your_file.inf" "9" "4a6f3eb03" "0000000000000140" "WinSta0\Default" "0000000000000148" "208" "C:\Users\Admin\Documents"
      2⤵
      • Manipulates Digital Signatures
      • Drops file in System32 directory
      • Drops file in Windows directory
      • Checks SCSI registry key(s)
      • Modifies data under HKEY_USERS
      PID:116
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
    1⤵
      PID:2504
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
      1⤵
        PID:3480
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
        1⤵
          PID:4776

        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

        • C:\Users\Admin\DOCUME~1\YOUR_F~1.CAT

          Filesize

          4KB

          MD5

          c67460ed11f3f5144f78cf04a673ecde

          SHA1

          c0c7fc1f1bd45104dce2ebdc0049abba410ddd0d

          SHA256

          8730394b64663d90aeb1344ccbd3a2667fbf5c016b6ed83714a569ea0a521017

          SHA512

          15b57b3f234edc39a0bfb3a5bf3d32ddef3fcdf6bffac36a8b545fb60f6c5ac70e83b1a85d0fbbf9b0d4a60806e30d7364f97768a8328b9bc817be8618212161

        • C:\Users\Admin\DOCUME~1\amd64\libusb0.dll

          Filesize

          74KB

          MD5

          1d8215f7f8cd02a553499b534ccfb4d5

          SHA1

          bab236f840f1521c43bcbaa2a7b92f14f329bc70

          SHA256

          4f18b5d2c28aa66b648c8683c6d09b52b92cbbee85984bbefad5f38a64bc2a14

          SHA512

          79ef4b25f16b2f2f37605298470ba9c4600e724e4b52d589add7d48816f656b93c082b5c65669e50e0546865063a068d26390e6ec7fbab66c3726e49a3779d69

        • C:\Users\Admin\DOCUME~1\amd64\libusb0.sys

          Filesize

          51KB

          MD5

          16e18ced459b1824234890386ee66cd5

          SHA1

          81d2b572ec0d24aba11ed6bfa9174ffad54140b7

          SHA256

          8058f2afe6ef96a7d2ded432997fd8655970c9ea75a938ee4557d6a2cb4cc989

          SHA512

          b0e67d040d39f043305b0c172906bbea8341f1326108f5c5a0379cd6b287d62cbd86270385713d0f6a14c5106a5a6c23f6247a303e6124cb3e33982978505c98

        • C:\Users\Admin\DOCUME~1\x86\libusb0_x86.dll

          Filesize

          66KB

          MD5

          535779909a40b42f4f3e48598f5778a5

          SHA1

          3a238468009a6dea3e4f70821339185e56ea3b69

          SHA256

          00caca07869b19d10b370552ac7cc2f6f2ee246fc15db11650f6cd3f4ef9b666

          SHA512

          723b42c3df960f031343b9bb74a55ab874cd1f740a187a58bfecdad78876dd227392f18f6faea33e743593511a12635ef6419bb68d4361c6631584ebc8838e80

        • C:\Users\Admin\Documents\installer_x64.exe

          Filesize

          24KB

          MD5

          4781fd8602709818be5725872bf05081

          SHA1

          747f3ebf9c91d9d704f860203f8e0fb0eb29250d

          SHA256

          46ae5cf5110626589c1d1688ef9d7fdf6e57983f97fd554b9a6179ad57a533d4

          SHA512

          6bf77032c9b4a41148b2d24d799ae68e0a05abd864b8e77df2338b0400ff04c64d9baf81f67cbddd5078e4f59801bdd2d644ceb9653a16779d3a877354589d25

        • C:\Users\Admin\Documents\x86\libusb0.sys

          Filesize

          41KB

          MD5

          c8c9800179af00c90629514e30873d80

          SHA1

          9438573aee178c68f49bfa5ad71132d06c4dfa9b

          SHA256

          aa7d75a4d01b405aab7c848674bbed392b64c6e374e20fd72adc3c96294e2f00

          SHA512

          1db533b4ed8e4ae2ff55ef8b93b9186e30f8711e91bf07051c70423bac76d8ef29ebe578483029f83dcb619f94fd8abf453aab78328a876fc88188671be522c2

        • C:\Users\Admin\Documents\your_file.inf

          Filesize

          7KB

          MD5

          5c25115998ac8ba65637e3bdf31dba29

          SHA1

          1ff8d4ed1148342b622dabe53dc9ef5fb0aed8fb

          SHA256

          d5a0a8afee7d7f5378a63df0db1d1437537b82cff9757bf165cab695da0cd39b

          SHA512

          cda9dc67e73b63a9188d3d71a35a5ee839e1e0f4358f87fd9bf3f161b02940060e6ebca757c3b2f0b4cd3dba15129b4d6fee870bee2323be2f7b85e40c54cb67

        • memory/4252-25-0x0000000010000000-0x0000000010030000-memory.dmp

          Filesize

          192KB

        • memory/4252-13-0x0000000000896000-0x0000000000897000-memory.dmp

          Filesize

          4KB

        • memory/4252-56-0x00000000007F0000-0x00000000008B0000-memory.dmp

          Filesize

          768KB

        • memory/4252-24-0x00000000007F0000-0x00000000008B0000-memory.dmp

          Filesize

          768KB

        • memory/4252-4-0x0000000010000000-0x0000000010030000-memory.dmp

          Filesize

          192KB

        • memory/4252-15-0x0000000010000000-0x0000000010030000-memory.dmp

          Filesize

          192KB

        • memory/4252-14-0x00000000007F0000-0x00000000008B0000-memory.dmp

          Filesize

          768KB

        • memory/4252-57-0x0000000010000000-0x0000000010030000-memory.dmp

          Filesize

          192KB

        • memory/4252-165-0x00000000007F0000-0x00000000008B0000-memory.dmp

          Filesize

          768KB

        • memory/4252-167-0x00000000007F0000-0x00000000008B0000-memory.dmp

          Filesize

          768KB

        • memory/4252-170-0x00000000007F0000-0x00000000008B0000-memory.dmp

          Filesize

          768KB

        • memory/4252-179-0x00000000007F0000-0x00000000008B0000-memory.dmp

          Filesize

          768KB

        • memory/4252-183-0x00000000007F0000-0x00000000008B0000-memory.dmp

          Filesize

          768KB

        • memory/4252-184-0x0000000010000000-0x0000000010030000-memory.dmp

          Filesize

          192KB