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Analysis
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max time kernel
183s -
max time network
212s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
29/11/2022, 17:23
Static task
static1
Behavioral task
behavioral1
Sample
9d6e3c9da8b1f903e9297d90837adfa37836f052c4c4c46bf7fd73bde58ed0de.exe
Resource
win7-20221111-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
9d6e3c9da8b1f903e9297d90837adfa37836f052c4c4c46bf7fd73bde58ed0de.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
9d6e3c9da8b1f903e9297d90837adfa37836f052c4c4c46bf7fd73bde58ed0de.exe
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Size
208KB
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MD5
fa20f3b312daefb785b7c0c6b2677366
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SHA1
bbfeb77406b0046339aa3e304676a623f5c3ca3b
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SHA256
9d6e3c9da8b1f903e9297d90837adfa37836f052c4c4c46bf7fd73bde58ed0de
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SHA512
cf447f560f703a1cc0ae0a44e41406f6eb668d710ae228432f489af224ef71b8b44709bff06b8771c07f9556e39ae163f8a4b177953e0e7a4ac462bee6a39d8d
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SSDEEP
3072:dlPD21gwQaC1dwR4E0bZskyKujSxa9AC:dsvyTbZskyRjd9AC
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-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 9d6e3c9da8b1f903e9297d90837adfa37836f052c4c4c46bf7fd73bde58ed0de.exe Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" peenuf.exe -
Executes dropped EXE 1 IoCs
pid Process 4552 peenuf.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation 9d6e3c9da8b1f903e9297d90837adfa37836f052c4c4c46bf7fd73bde58ed0de.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peenuf = "C:\\Users\\Admin\\peenuf.exe /n" peenuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peenuf = "C:\\Users\\Admin\\peenuf.exe /h" peenuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peenuf = "C:\\Users\\Admin\\peenuf.exe /d" peenuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peenuf = "C:\\Users\\Admin\\peenuf.exe /j" peenuf.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 9d6e3c9da8b1f903e9297d90837adfa37836f052c4c4c46bf7fd73bde58ed0de.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peenuf = "C:\\Users\\Admin\\peenuf.exe /u" peenuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peenuf = "C:\\Users\\Admin\\peenuf.exe /o" peenuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peenuf = "C:\\Users\\Admin\\peenuf.exe /t" peenuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peenuf = "C:\\Users\\Admin\\peenuf.exe /f" peenuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peenuf = "C:\\Users\\Admin\\peenuf.exe /b" peenuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peenuf = "C:\\Users\\Admin\\peenuf.exe /x" peenuf.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows\CurrentVersion\Run\ peenuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peenuf = "C:\\Users\\Admin\\peenuf.exe /s" peenuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peenuf = "C:\\Users\\Admin\\peenuf.exe /l" peenuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peenuf = "C:\\Users\\Admin\\peenuf.exe /w" peenuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peenuf = "C:\\Users\\Admin\\peenuf.exe /y" peenuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peenuf = "C:\\Users\\Admin\\peenuf.exe /k" peenuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peenuf = "C:\\Users\\Admin\\peenuf.exe /v" peenuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peenuf = "C:\\Users\\Admin\\peenuf.exe /s" 9d6e3c9da8b1f903e9297d90837adfa37836f052c4c4c46bf7fd73bde58ed0de.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peenuf = "C:\\Users\\Admin\\peenuf.exe /z" peenuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peenuf = "C:\\Users\\Admin\\peenuf.exe /e" peenuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peenuf = "C:\\Users\\Admin\\peenuf.exe /m" peenuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peenuf = "C:\\Users\\Admin\\peenuf.exe /a" peenuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peenuf = "C:\\Users\\Admin\\peenuf.exe /i" peenuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peenuf = "C:\\Users\\Admin\\peenuf.exe /p" peenuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peenuf = "C:\\Users\\Admin\\peenuf.exe /q" peenuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peenuf = "C:\\Users\\Admin\\peenuf.exe /g" peenuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peenuf = "C:\\Users\\Admin\\peenuf.exe /r" peenuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peenuf = "C:\\Users\\Admin\\peenuf.exe /c" peenuf.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 1704 9d6e3c9da8b1f903e9297d90837adfa37836f052c4c4c46bf7fd73bde58ed0de.exe 1704 9d6e3c9da8b1f903e9297d90837adfa37836f052c4c4c46bf7fd73bde58ed0de.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe 4552 peenuf.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1704 9d6e3c9da8b1f903e9297d90837adfa37836f052c4c4c46bf7fd73bde58ed0de.exe 4552 peenuf.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1704 wrote to memory of 4552 1704 9d6e3c9da8b1f903e9297d90837adfa37836f052c4c4c46bf7fd73bde58ed0de.exe 88 PID 1704 wrote to memory of 4552 1704 9d6e3c9da8b1f903e9297d90837adfa37836f052c4c4c46bf7fd73bde58ed0de.exe 88 PID 1704 wrote to memory of 4552 1704 9d6e3c9da8b1f903e9297d90837adfa37836f052c4c4c46bf7fd73bde58ed0de.exe 88
Processes
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C:\Users\Admin\AppData\Local\Temp\9d6e3c9da8b1f903e9297d90837adfa37836f052c4c4c46bf7fd73bde58ed0de.exe"C:\Users\Admin\AppData\Local\Temp\9d6e3c9da8b1f903e9297d90837adfa37836f052c4c4c46bf7fd73bde58ed0de.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1704 -
C:\Users\Admin\peenuf.exe"C:\Users\Admin\peenuf.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:4552
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
208KB
MD57e9bde91005c010d455bfe522410d725
SHA1abc197ade5b7d8d7a39213435aad457fdb037e82
SHA2566c7e2d800ed2d15fbcfd66e97aae972d82807717cae11efcc0604df7d2b942b4
SHA512adfaaa3b1a5cf009ad8a2dc54c32c92e4b9095c6f73aaf778d9a7940ce823757708c59760b996c87f6e93344760a7bdb4dc7197060da951cf8e4cbee38db339b
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Filesize
208KB
MD57e9bde91005c010d455bfe522410d725
SHA1abc197ade5b7d8d7a39213435aad457fdb037e82
SHA2566c7e2d800ed2d15fbcfd66e97aae972d82807717cae11efcc0604df7d2b942b4
SHA512adfaaa3b1a5cf009ad8a2dc54c32c92e4b9095c6f73aaf778d9a7940ce823757708c59760b996c87f6e93344760a7bdb4dc7197060da951cf8e4cbee38db339b