Analysis
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max time kernel
120s -
max time network
112s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
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submitted
17-12-2024 14:14
General
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Target
a39ad91fa7e488a5738da1d4cc058a4207d2797739cdd9f4d4a33709cc38cb52N.exe
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Size
888KB
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MD5
d9c444cad1cd385154a50278c9120030
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SHA1
1c631f1e2b6308d1f87eb05dfdc09b696d064524
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SHA256
a39ad91fa7e488a5738da1d4cc058a4207d2797739cdd9f4d4a33709cc38cb52
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SHA512
0ed3710bf609c1a70ee2426cdb78d23659823bf757a794040e9dabc0aa2ca8f569f9cedf59258296020fad846683d72ec11e7afec465f4d52fb07cc296ab365a
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SSDEEP
12288:DpqAgC/2OGAtkCP4cejGSOpRK3CGYxBjvrEH7TS:DpX/2+ttPJLfpRK3CGYvrEH7TS
Malware Config
Signatures
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Floxif family
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Floxif, Floodfix
Floxif aka FloodFix is a file-changing trojan and backdoor written in C++.
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
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Detects Floxif payload 1 IoCs
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Disables RegEdit via registry modification 1 IoCs
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Disables Task Manager via registry modification
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ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
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Loads dropped DLL 1 IoCs
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Adds Run key to start application 2 TTPs 1 IoCs
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Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
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AutoIT Executable 18 IoCs
AutoIT scripts compiled to PE executables.
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Drops autorun.inf file 1 TTPs 3 IoCs
Malware can abuse Windows Autorun to spread further via attached volumes.
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UPX packed file 7 IoCs
Detects executables packed with UPX/modified UPX open source packer.
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Drops file in Program Files directory 2 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 9 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
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Modifies Internet Explorer settings 1 TTPs 5 IoCs
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Modifies Internet Explorer start page 1 TTPs 2 IoCs
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious use of AdjustPrivilegeToken 1 IoCs
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Suspicious use of WriteProcessMemory 24 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\a39ad91fa7e488a5738da1d4cc058a4207d2797739cdd9f4d4a33709cc38cb52N.exe"C:\Users\Admin\AppData\Local\Temp\a39ad91fa7e488a5738da1d4cc058a4207d2797739cdd9f4d4a33709cc38cb52N.exe"1⤵
- Modifies WinLogon for persistence
- Disables RegEdit via registry modification
- Loads dropped DLL
- Adds Run key to start application
- Enumerates connected drives
- Drops autorun.inf file
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Modifies Internet Explorer start page
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /C AT /delete /yes2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\at.exeAT /delete /yes3⤵
- System Location Discovery: System Language Discovery
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /C AT 09:00 /interactive /EVERY:m,t,w,th,f,s,su C:\Users\Admin\Desktop\system3_.exe2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\at.exeAT 09:00 /interactive /EVERY:m,t,w,th,f,s,su C:\Users\Admin\Desktop\system3_.exe3⤵
- System Location Discovery: System Language Discovery
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /C cacls "C:\system volume information" /e /g "Admin":f2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cacls.execacls "C:\system volume information" /e /g "Admin":f3⤵
- System Location Discovery: System Language Discovery
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /C cacls "C:\system volume information" /e /g "Admin":f2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cacls.execacls "C:\system volume information" /e /g "Admin":f3⤵
- System Location Discovery: System Language Discovery
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Replay Monitor
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Downloads
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Filesize
67KB
MD57574cf2c64f35161ab1292e2f532aabf
SHA114ba3fa927a06224dfe587014299e834def4644f
SHA256de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA5124db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab
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Filesize
175B
MD51130c911bf5db4b8f7cf9b6f4b457623
SHA148e734c4bc1a8b5399bff4954e54b268bde9d54c
SHA256eba08cc8182f379392a97f542b350ea0dbbe5e4009472f35af20e3d857eafdf1
SHA51294e2511ef2c53494c2aff0960266491ffc0e54e75185427d1ccedae27c286992c754ca94cbb0c9ea36e3f04cd4eb7f032c551cf2d4b309f292906303f1a75fa0
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Filesize
167B
MD50104c301c5e02bd6148b8703d19b3a73
SHA17436e0b4b1f8c222c38069890b75fa2baf9ca620
SHA256446a6087825fa73eadb045e5a2e9e2adf7df241b571228187728191d961dda1f
SHA51284427b656a6234a651a6d8285c103645b861a18a6c5af4abb5cb4f3beb5a4f0df4a74603a0896c7608790fbb886dc40508e92d5709f44dca05dd46c8316d15bf
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Filesize
102B
MD5948c74cd98911b420ff89dac13399bcb
SHA176dfc73518f003953923b1b4f2b973f4bb56a411
SHA25694a1ac3d574425ec8a3cc01675e4d787373d2a190dddd4f8ba507c49ca3fd42a
SHA512b31d82ede9d48e390a50a9dcf5c4c607c62638e8bc56f473250f9a56b7967d5de948abed69bbb2c35eb0112288faa5c438316b06ccbb36d289e93952b30e2ede
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Filesize
811KB
MD5bf6184c49627d23d072a857da557f06c
SHA1c058cd5be2712b8a2630349969aa6ac4a1252591
SHA256f1256fc0fa55173e997dca0f2ddab5ee2b30c7fd85cf1ebecefa9393936f5a02
SHA512789fbbd5c2ce5850fe497492a8074bd85da34e09e2cd1c7bc66f932dcdfb2759582ac11880a7ae97683871156b19ec24cd824346059caebe624942b5d21b9b36
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Filesize
192KB
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Filesize
928KB
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Filesize
928KB
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Filesize
192KB
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Filesize
192KB
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Filesize
928KB
-
Filesize
928KB
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Filesize
928KB
-
Filesize
928KB
-
Filesize
928KB
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Filesize
928KB
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Filesize
16KB
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Filesize
192KB
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Filesize
928KB
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Filesize
928KB
-
Filesize
928KB
-
Filesize
928KB
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Filesize
192KB
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Filesize
928KB
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Filesize
928KB
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Filesize
928KB
-
Filesize
928KB
-
Filesize
928KB
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Filesize
192KB