Analysis
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max time kernel
160s -
max time network
50s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
14/10/2022, 10:23
Static task
static1
Behavioral task
behavioral1
Sample
f82f4fb1cef86dfaa3a3d083a03297e44550088456a39bb072b3106ee401b5a7.exe
Resource
win7-20220901-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
f82f4fb1cef86dfaa3a3d083a03297e44550088456a39bb072b3106ee401b5a7.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
f82f4fb1cef86dfaa3a3d083a03297e44550088456a39bb072b3106ee401b5a7.exe
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Size
312KB
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MD5
68774256a410655c2fecace3fab59079
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SHA1
6ef3aed38e54a390766967858bb4a4c04919f022
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SHA256
f82f4fb1cef86dfaa3a3d083a03297e44550088456a39bb072b3106ee401b5a7
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SHA512
2e6e97bc7b48782a94d40d0de034c9feec559ecafca6f4bef0c2b38cc71bd3676ddaa47c7d55f1214fab6953d8467e47c808306d0c85adafea578f7379a997b5
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SSDEEP
6144:GY/FThz+4OAY0kmg7JXKj4vxim1EHlXnJJIyMAf5W/SbDHeIuy0bI:jrz+4OAY0kmg7JXKoyMAf5W/SbCIXW
Score
10/10
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" f82f4fb1cef86dfaa3a3d083a03297e44550088456a39bb072b3106ee401b5a7.exe Set value (int) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" feuej.exe -
Executes dropped EXE 1 IoCs
pid Process 940 feuej.exe -
Loads dropped DLL 2 IoCs
pid Process 1304 f82f4fb1cef86dfaa3a3d083a03297e44550088456a39bb072b3106ee401b5a7.exe 1304 f82f4fb1cef86dfaa3a3d083a03297e44550088456a39bb072b3106ee401b5a7.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\feuej = "C:\\Users\\Admin\\feuej.exe /m" feuej.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\feuej = "C:\\Users\\Admin\\feuej.exe /j" feuej.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\feuej = "C:\\Users\\Admin\\feuej.exe /p" feuej.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\feuej = "C:\\Users\\Admin\\feuej.exe /a" feuej.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\feuej = "C:\\Users\\Admin\\feuej.exe /s" feuej.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\feuej = "C:\\Users\\Admin\\feuej.exe /g" feuej.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\feuej = "C:\\Users\\Admin\\feuej.exe /v" feuej.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\feuej = "C:\\Users\\Admin\\feuej.exe /b" feuej.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\feuej = "C:\\Users\\Admin\\feuej.exe /i" feuej.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\feuej = "C:\\Users\\Admin\\feuej.exe /f" feuej.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\feuej = "C:\\Users\\Admin\\feuej.exe /n" feuej.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\feuej = "C:\\Users\\Admin\\feuej.exe /r" feuej.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\feuej = "C:\\Users\\Admin\\feuej.exe /x" feuej.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\feuej = "C:\\Users\\Admin\\feuej.exe /e" feuej.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\feuej = "C:\\Users\\Admin\\feuej.exe /c" feuej.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ feuej.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\feuej = "C:\\Users\\Admin\\feuej.exe /d" feuej.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\feuej = "C:\\Users\\Admin\\feuej.exe /k" feuej.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\feuej = "C:\\Users\\Admin\\feuej.exe /t" feuej.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\feuej = "C:\\Users\\Admin\\feuej.exe /q" feuej.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\feuej = "C:\\Users\\Admin\\feuej.exe /y" feuej.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ f82f4fb1cef86dfaa3a3d083a03297e44550088456a39bb072b3106ee401b5a7.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\feuej = "C:\\Users\\Admin\\feuej.exe /d" f82f4fb1cef86dfaa3a3d083a03297e44550088456a39bb072b3106ee401b5a7.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\feuej = "C:\\Users\\Admin\\feuej.exe /z" feuej.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\feuej = "C:\\Users\\Admin\\feuej.exe /l" feuej.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\feuej = "C:\\Users\\Admin\\feuej.exe /u" feuej.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\feuej = "C:\\Users\\Admin\\feuej.exe /w" feuej.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\feuej = "C:\\Users\\Admin\\feuej.exe /o" feuej.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\feuej = "C:\\Users\\Admin\\feuej.exe /h" feuej.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1304 f82f4fb1cef86dfaa3a3d083a03297e44550088456a39bb072b3106ee401b5a7.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe 940 feuej.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1304 f82f4fb1cef86dfaa3a3d083a03297e44550088456a39bb072b3106ee401b5a7.exe 940 feuej.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1304 wrote to memory of 940 1304 f82f4fb1cef86dfaa3a3d083a03297e44550088456a39bb072b3106ee401b5a7.exe 27 PID 1304 wrote to memory of 940 1304 f82f4fb1cef86dfaa3a3d083a03297e44550088456a39bb072b3106ee401b5a7.exe 27 PID 1304 wrote to memory of 940 1304 f82f4fb1cef86dfaa3a3d083a03297e44550088456a39bb072b3106ee401b5a7.exe 27 PID 1304 wrote to memory of 940 1304 f82f4fb1cef86dfaa3a3d083a03297e44550088456a39bb072b3106ee401b5a7.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\f82f4fb1cef86dfaa3a3d083a03297e44550088456a39bb072b3106ee401b5a7.exe"C:\Users\Admin\AppData\Local\Temp\f82f4fb1cef86dfaa3a3d083a03297e44550088456a39bb072b3106ee401b5a7.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1304 -
C:\Users\Admin\feuej.exe"C:\Users\Admin\feuej.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:940
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
312KB
MD54219cd26749b377221a60fb14b58af59
SHA17d7a1695ffcc80fd952772d261342902b9c33e20
SHA256eead143eb407a9c43be947ba90f6d82a11ae929d33f5f09f2a887dbbf6230dec
SHA512bd9adb1f65289443bb7f2c2d568bee2b5502f5ae727d3aab3540e9a336796ac3af9c861d1f68e0b71c42c5bae62abe66d49036787162d20741d9a5f82a10b03b
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Filesize
312KB
MD54219cd26749b377221a60fb14b58af59
SHA17d7a1695ffcc80fd952772d261342902b9c33e20
SHA256eead143eb407a9c43be947ba90f6d82a11ae929d33f5f09f2a887dbbf6230dec
SHA512bd9adb1f65289443bb7f2c2d568bee2b5502f5ae727d3aab3540e9a336796ac3af9c861d1f68e0b71c42c5bae62abe66d49036787162d20741d9a5f82a10b03b
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Filesize
312KB
MD54219cd26749b377221a60fb14b58af59
SHA17d7a1695ffcc80fd952772d261342902b9c33e20
SHA256eead143eb407a9c43be947ba90f6d82a11ae929d33f5f09f2a887dbbf6230dec
SHA512bd9adb1f65289443bb7f2c2d568bee2b5502f5ae727d3aab3540e9a336796ac3af9c861d1f68e0b71c42c5bae62abe66d49036787162d20741d9a5f82a10b03b
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Filesize
312KB
MD54219cd26749b377221a60fb14b58af59
SHA17d7a1695ffcc80fd952772d261342902b9c33e20
SHA256eead143eb407a9c43be947ba90f6d82a11ae929d33f5f09f2a887dbbf6230dec
SHA512bd9adb1f65289443bb7f2c2d568bee2b5502f5ae727d3aab3540e9a336796ac3af9c861d1f68e0b71c42c5bae62abe66d49036787162d20741d9a5f82a10b03b