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Analysis
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max time kernel
253s -
max time network
334s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
05/12/2022, 09:39
Static task
static1
Behavioral task
behavioral1
Sample
a0d6a201ad600de8df5400c1966811cbbe735016aaadc425ab8454295f6096d3.exe
Resource
win7-20221111-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
a0d6a201ad600de8df5400c1966811cbbe735016aaadc425ab8454295f6096d3.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
2 signatures
150 seconds
General
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Target
a0d6a201ad600de8df5400c1966811cbbe735016aaadc425ab8454295f6096d3.exe
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Size
232KB
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MD5
771d377461b7a51656c87fb7a172939e
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SHA1
821c9253e2c5aaa72c3e77b4d1c33c9423e6a5c3
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SHA256
a0d6a201ad600de8df5400c1966811cbbe735016aaadc425ab8454295f6096d3
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SHA512
179340e3e922f32d5091fc06d681949e2365fe3ca35d7cbec8557231982c45cc6df5b65efd32e31f8471faf172c80f73bc08136859725444816f2b056a06874d
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SSDEEP
6144:QyG03PFKs78vpRTlEqxF6snji81RUinKbLYx:bPhpu
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-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" a0d6a201ad600de8df5400c1966811cbbe735016aaadc425ab8454295f6096d3.exe Set value (int) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" fnriuf.exe -
Executes dropped EXE 1 IoCs
pid Process 1280 fnriuf.exe -
Loads dropped DLL 2 IoCs
pid Process 528 a0d6a201ad600de8df5400c1966811cbbe735016aaadc425ab8454295f6096d3.exe 528 a0d6a201ad600de8df5400c1966811cbbe735016aaadc425ab8454295f6096d3.exe -
Adds Run key to start application 2 TTPs 28 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fnriuf = "C:\\Users\\Admin\\fnriuf.exe /f" fnriuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fnriuf = "C:\\Users\\Admin\\fnriuf.exe /m" fnriuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fnriuf = "C:\\Users\\Admin\\fnriuf.exe /n" fnriuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fnriuf = "C:\\Users\\Admin\\fnriuf.exe /e" fnriuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fnriuf = "C:\\Users\\Admin\\fnriuf.exe /r" fnriuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fnriuf = "C:\\Users\\Admin\\fnriuf.exe /y" fnriuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fnriuf = "C:\\Users\\Admin\\fnriuf.exe /j" fnriuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fnriuf = "C:\\Users\\Admin\\fnriuf.exe /b" fnriuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fnriuf = "C:\\Users\\Admin\\fnriuf.exe /w" fnriuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fnriuf = "C:\\Users\\Admin\\fnriuf.exe /z" fnriuf.exe Key created \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\ a0d6a201ad600de8df5400c1966811cbbe735016aaadc425ab8454295f6096d3.exe Key created \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\ fnriuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fnriuf = "C:\\Users\\Admin\\fnriuf.exe /o" fnriuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fnriuf = "C:\\Users\\Admin\\fnriuf.exe /h" fnriuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fnriuf = "C:\\Users\\Admin\\fnriuf.exe /l" fnriuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fnriuf = "C:\\Users\\Admin\\fnriuf.exe /x" fnriuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fnriuf = "C:\\Users\\Admin\\fnriuf.exe /k" fnriuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fnriuf = "C:\\Users\\Admin\\fnriuf.exe /a" fnriuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fnriuf = "C:\\Users\\Admin\\fnriuf.exe /i" fnriuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fnriuf = "C:\\Users\\Admin\\fnriuf.exe /q" fnriuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fnriuf = "C:\\Users\\Admin\\fnriuf.exe /d" fnriuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fnriuf = "C:\\Users\\Admin\\fnriuf.exe /v" fnriuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fnriuf = "C:\\Users\\Admin\\fnriuf.exe /u" fnriuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fnriuf = "C:\\Users\\Admin\\fnriuf.exe /t" fnriuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fnriuf = "C:\\Users\\Admin\\fnriuf.exe /s" fnriuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fnriuf = "C:\\Users\\Admin\\fnriuf.exe /z" a0d6a201ad600de8df5400c1966811cbbe735016aaadc425ab8454295f6096d3.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fnriuf = "C:\\Users\\Admin\\fnriuf.exe /g" fnriuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\fnriuf = "C:\\Users\\Admin\\fnriuf.exe /c" fnriuf.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 528 a0d6a201ad600de8df5400c1966811cbbe735016aaadc425ab8454295f6096d3.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe 1280 fnriuf.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 528 a0d6a201ad600de8df5400c1966811cbbe735016aaadc425ab8454295f6096d3.exe 1280 fnriuf.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 528 wrote to memory of 1280 528 a0d6a201ad600de8df5400c1966811cbbe735016aaadc425ab8454295f6096d3.exe 28 PID 528 wrote to memory of 1280 528 a0d6a201ad600de8df5400c1966811cbbe735016aaadc425ab8454295f6096d3.exe 28 PID 528 wrote to memory of 1280 528 a0d6a201ad600de8df5400c1966811cbbe735016aaadc425ab8454295f6096d3.exe 28 PID 528 wrote to memory of 1280 528 a0d6a201ad600de8df5400c1966811cbbe735016aaadc425ab8454295f6096d3.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\a0d6a201ad600de8df5400c1966811cbbe735016aaadc425ab8454295f6096d3.exe"C:\Users\Admin\AppData\Local\Temp\a0d6a201ad600de8df5400c1966811cbbe735016aaadc425ab8454295f6096d3.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:528 -
C:\Users\Admin\fnriuf.exe"C:\Users\Admin\fnriuf.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:1280
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
232KB
MD58e2e46db66f626a28e01751ab2355941
SHA1190cb53bbdf5671aab584af774cc2ec892e3555b
SHA2568e6d8c0b4740c581cf269dff2328faba6cabcef9745ee46b0d9519024709d165
SHA51296b448a638015a8e627f75b452b2635fcb961161b698c75faeb894c9b3eb38561a336d43b67c126fa07d0bffbab37e59972323eb3527e1d3c2f8abeaf40acfb3
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Filesize
232KB
MD58e2e46db66f626a28e01751ab2355941
SHA1190cb53bbdf5671aab584af774cc2ec892e3555b
SHA2568e6d8c0b4740c581cf269dff2328faba6cabcef9745ee46b0d9519024709d165
SHA51296b448a638015a8e627f75b452b2635fcb961161b698c75faeb894c9b3eb38561a336d43b67c126fa07d0bffbab37e59972323eb3527e1d3c2f8abeaf40acfb3
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Filesize
232KB
MD58e2e46db66f626a28e01751ab2355941
SHA1190cb53bbdf5671aab584af774cc2ec892e3555b
SHA2568e6d8c0b4740c581cf269dff2328faba6cabcef9745ee46b0d9519024709d165
SHA51296b448a638015a8e627f75b452b2635fcb961161b698c75faeb894c9b3eb38561a336d43b67c126fa07d0bffbab37e59972323eb3527e1d3c2f8abeaf40acfb3
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Filesize
232KB
MD58e2e46db66f626a28e01751ab2355941
SHA1190cb53bbdf5671aab584af774cc2ec892e3555b
SHA2568e6d8c0b4740c581cf269dff2328faba6cabcef9745ee46b0d9519024709d165
SHA51296b448a638015a8e627f75b452b2635fcb961161b698c75faeb894c9b3eb38561a336d43b67c126fa07d0bffbab37e59972323eb3527e1d3c2f8abeaf40acfb3