Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250129-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-02-2025 00:42

General

  • Target

    627d78d9ec3da2ab672efd2c4b9ea424ace0cbd98ea2ca3729ab8d3582ee7691.exe

  • Size

    3.6MB

  • MD5

    924b46ba7e7fd48fc3b89a10f62e3d6f

  • SHA1

    4ea9a6cc382ddfd1a7e5fa0bd1ac79edf4350839

  • SHA256

    627d78d9ec3da2ab672efd2c4b9ea424ace0cbd98ea2ca3729ab8d3582ee7691

  • SHA512

    60d8843a4246e15972fd3eb9466930474d0c8a679dcf71b2d3afc01067a8cb26e4b5eac71669f32ecc2a8aace59fdaa198a2e1897374e7f87430b5fd8280d193

  • SSDEEP

    49152:sH2XX9nMhH9HpVYZ0CSf1pHtOUYqP3CFOrtG/JR9sXafgkDFMVR9C1UhPJXMK70D:A2XX96HhpVYZo1t0xOoGBiCV2HmdI

Malware Config

Signatures

  • Floxif family
  • Floxif, Floodfix

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

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Detects Floxif payload 1 IoCs
  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 5 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Checks for any installed AV software in registry 1 TTPs 4 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • 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 2 IoCs
  • UPX packed file 7 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
  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\627d78d9ec3da2ab672efd2c4b9ea424ace0cbd98ea2ca3729ab8d3582ee7691.exe
    "C:\Users\Admin\AppData\Local\Temp\627d78d9ec3da2ab672efd2c4b9ea424ace0cbd98ea2ca3729ab8d3582ee7691.exe"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4920
    • \??\c:\users\admin\appdata\local\temp\627d78d9ec3da2ab672efd2c4b9ea424ace0cbd98ea2ca3729ab8d3582ee7691.exe 
      c:\users\admin\appdata\local\temp\627d78d9ec3da2ab672efd2c4b9ea424ace0cbd98ea2ca3729ab8d3582ee7691.exe 
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks for any installed AV software in registry
      • Enumerates connected drives
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      PID:4932
    • C:\Windows\Resources\Themes\icsys.icn.exe
      C:\Windows\Resources\Themes\icsys.icn.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5024
      • \??\c:\windows\resources\themes\explorer.exe
        c:\windows\resources\themes\explorer.exe
        3⤵
        • Modifies visiblity of hidden/system files in Explorer
        • Executes dropped EXE
        • Adds Run key to start application
        • Drops file in System32 directory
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1012
        • \??\c:\windows\resources\spoolsv.exe
          c:\windows\resources\spoolsv.exe SE
          4⤵
          • Executes dropped EXE
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:4112
          • \??\c:\windows\resources\svchost.exe
            c:\windows\resources\svchost.exe
            5⤵
            • Modifies visiblity of hidden/system files in Explorer
            • Executes dropped EXE
            • Adds Run key to start application
            • Drops file in System32 directory
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:1392
            • \??\c:\windows\resources\spoolsv.exe
              c:\windows\resources\spoolsv.exe PR
              6⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              • Suspicious use of SetWindowsHookEx
              PID:5108

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

  • C:\Users\Admin\AppData\Local\Temp\627d78d9ec3da2ab672efd2c4b9ea424ace0cbd98ea2ca3729ab8d3582ee7691.exe.tmp

    Filesize

    3.6MB

    MD5

    225ef36b57bf87fe2631d8a717b0eacd

    SHA1

    3ea3c3f825952acc99af9acffb15957a0f6afb1e

    SHA256

    ef116d20915e973b3361066596fd5229bc026d1c8534cc1eced76d85f4f811a9

    SHA512

    a9ac154353b925f94e1c0e6c4584a9417c58bb2fe5e84f12d96cea100dc30bbf078714ecddadd8e2d5d2844b57833c415c4ec120401387ea11eaaaac5d63a3c4

  • C:\Users\Admin\AppData\Local\Temp\627d78d9ec3da2ab672efd2c4b9ea424ace0cbd98ea2ca3729ab8d3582ee7691.exe 

    Filesize

    3.4MB

    MD5

    05dbee0d76e3cc943c1f4b86d94ee4f0

    SHA1

    0becbd2e4b6dcfe10e889b0afe30acd746b58e87

    SHA256

    cd6fa1dcd6e80e2f64692ff90b25c1add8f40d5468624a16f2b19e5ef739b571

    SHA512

    9f7646971c7ec5024780a2eebbfeda36871677377ded3746a03f16084c1e317f7d6174c13c39b167ce2a2c25e49c97b7937eb6554dd045684eba93af69a23e0c

  • C:\Users\Admin\AppData\Local\Temp\Setup\ds.dll

    Filesize

    79KB

    MD5

    d9cb0b4a66458d85470ccf9b3575c0e7

    SHA1

    1572092be5489725cffbabe2f59eba094ee1d8a1

    SHA256

    6ab3fdc4038a86124e6d698620acba3abf9e854702490e245c840c096ee41d05

    SHA512

    94937e77da89181903a260eac5120e8db165f2a3493086523bc5abbe87c4a9da39af3ba1874e3407c52df6ffda29e4947062ba6abe9f05b85c42379c4be2e5e6

  • C:\Windows\Resources\Themes\explorer.exe

    Filesize

    135KB

    MD5

    65fe2a3007231873e8c3cb15a48ade7e

    SHA1

    a87a1a6570ed9f1843a53447c9efcbff2ea1ba01

    SHA256

    fd001e47a182dbe4b82b622a69fa799b8f00fb98e60be91b79b9beebaf7f7742

    SHA512

    2c363a5e5ab814b1f840e665aa84265d96f3a4524e6964ec35988a7a7d87e8085fe3605e82b3e61663c9c623fc3756ea24d00afb0f66f8a8edc076695cbf67ff

  • C:\Windows\Resources\Themes\icsys.icn.exe

    Filesize

    135KB

    MD5

    a895cb6b0aad0e9747252b106c57675e

    SHA1

    9fccd0d83de1a44af9565270fccb69fa67513b9c

    SHA256

    25a857baeda27f8d85f03b3e8d9cf3735b3ca4a849b0b26df227effb955ce276

    SHA512

    01c9f582e75f6da738a3f56fc386f974c0594b17ccd0b03c44a5993d5c6c2797ac06831ca67dccd395b16286636cee01964e007e2e1bc138de74dbb030583b79

  • C:\Windows\Resources\svchost.exe

    Filesize

    135KB

    MD5

    ff4429fd781a490f4059889cfe51c7a8

    SHA1

    1d5a2ed409b053463279d0005b5dce63477c08d7

    SHA256

    bbd886785933d20599c9357b1d44ee104afcbdac0b26b9a5bc63990998280b1e

    SHA512

    05717174ca2e96f7e95438eab35c351bff40636757d498ef6a97126dc8b3497a13d3d46ef53f10850679487238bd7276f0ae0fc9cb3bf12cb6c16ee95fdc203f

  • \??\c:\windows\resources\spoolsv.exe

    Filesize

    135KB

    MD5

    6fee93044d66f96070af99715e603d66

    SHA1

    e2bd03e918030af0e13bbb3b6c1da63230a1cfb1

    SHA256

    55e68f9c97d9535778f32a38089219b41b4e5da75fd8ba6980e3a0d7d12beb47

    SHA512

    0d60b001d7fd797646dbea6a5acf0559ec417698c5c8bd86c247583f5906cc7ddf217a9f5b90893f1d24421bad94e3a8e1ca94031a468d058a18b5cfdcb9d579

  • memory/1012-38-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1012-114-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1392-117-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/4112-78-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/4920-0-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/4920-80-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/4932-89-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/4932-48-0x000000000A540000-0x000000000AAE4000-memory.dmp

    Filesize

    5.6MB

  • memory/4932-72-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/4932-54-0x000000000A070000-0x000000000A102000-memory.dmp

    Filesize

    584KB

  • memory/4932-120-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/4932-82-0x0000000009E60000-0x0000000009EA4000-memory.dmp

    Filesize

    272KB

  • memory/4932-83-0x000000000B130000-0x000000000B1CC000-memory.dmp

    Filesize

    624KB

  • memory/4932-84-0x000000000B1D0000-0x000000000B236000-memory.dmp

    Filesize

    408KB

  • memory/4932-85-0x000000000B770000-0x000000000BC9C000-memory.dmp

    Filesize

    5.2MB

  • memory/4932-118-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/4932-93-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/4932-92-0x0000000000D30000-0x0000000001092000-memory.dmp

    Filesize

    3.4MB

  • memory/4932-99-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/4932-98-0x0000000000D30000-0x0000000001092000-memory.dmp

    Filesize

    3.4MB

  • memory/4932-43-0x00000000075D0000-0x00000000075E6000-memory.dmp

    Filesize

    88KB

  • memory/4932-105-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/4932-44-0x00000000735E0000-0x00000000735F6000-memory.dmp

    Filesize

    88KB

  • memory/4932-13-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/5024-81-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/5108-79-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB