Analysis
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max time kernel
166s -
max time network
144s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
20/10/2022, 10:01
Static task
static1
Behavioral task
behavioral1
Sample
f27ddab882671d86410ce7add76e8d2d0a3d352bfcffa3543cd46837bc5a4161.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
f27ddab882671d86410ce7add76e8d2d0a3d352bfcffa3543cd46837bc5a4161.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
f27ddab882671d86410ce7add76e8d2d0a3d352bfcffa3543cd46837bc5a4161.exe
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Size
92KB
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MD5
810c43a7c3c778ec0b550c418131083b
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SHA1
3e2f1bbae7a55f1b40368f3ac189b0253ed5478a
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SHA256
f27ddab882671d86410ce7add76e8d2d0a3d352bfcffa3543cd46837bc5a4161
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SHA512
dc697102fe64d68ec3739e12a7df183c8c8beb3531be301abcaeb76deedc1e744a20f7c23349051bd2205be4e42574b2d3d47bc0d00fdeba545238ffce298f6c
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SSDEEP
1536:dymf4EVT8JNenyIGmvcTlfbfwLocTzFJ0T72VpUZ:rxYhTxYBTzFJ0T72gZ
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-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" f27ddab882671d86410ce7add76e8d2d0a3d352bfcffa3543cd46837bc5a4161.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" flnim.exe -
Executes dropped EXE 1 IoCs
pid Process 328 flnim.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-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation f27ddab882671d86410ce7add76e8d2d0a3d352bfcffa3543cd46837bc5a4161.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\flnim = "C:\\Users\\Admin\\flnim.exe /s" flnim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\flnim = "C:\\Users\\Admin\\flnim.exe /b" flnim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\flnim = "C:\\Users\\Admin\\flnim.exe /t" flnim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\flnim = "C:\\Users\\Admin\\flnim.exe /w" flnim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\flnim = "C:\\Users\\Admin\\flnim.exe /m" flnim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\flnim = "C:\\Users\\Admin\\flnim.exe /p" flnim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\flnim = "C:\\Users\\Admin\\flnim.exe /a" flnim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\flnim = "C:\\Users\\Admin\\flnim.exe /f" flnim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\flnim = "C:\\Users\\Admin\\flnim.exe /o" flnim.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ f27ddab882671d86410ce7add76e8d2d0a3d352bfcffa3543cd46837bc5a4161.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\flnim = "C:\\Users\\Admin\\flnim.exe /g" flnim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\flnim = "C:\\Users\\Admin\\flnim.exe /h" flnim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\flnim = "C:\\Users\\Admin\\flnim.exe /j" flnim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\flnim = "C:\\Users\\Admin\\flnim.exe /q" flnim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\flnim = "C:\\Users\\Admin\\flnim.exe /e" flnim.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ flnim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\flnim = "C:\\Users\\Admin\\flnim.exe /r" flnim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\flnim = "C:\\Users\\Admin\\flnim.exe /y" flnim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\flnim = "C:\\Users\\Admin\\flnim.exe /d" flnim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\flnim = "C:\\Users\\Admin\\flnim.exe /f" f27ddab882671d86410ce7add76e8d2d0a3d352bfcffa3543cd46837bc5a4161.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\flnim = "C:\\Users\\Admin\\flnim.exe /x" flnim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\flnim = "C:\\Users\\Admin\\flnim.exe /i" flnim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\flnim = "C:\\Users\\Admin\\flnim.exe /z" flnim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\flnim = "C:\\Users\\Admin\\flnim.exe /l" flnim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\flnim = "C:\\Users\\Admin\\flnim.exe /u" flnim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\flnim = "C:\\Users\\Admin\\flnim.exe /c" flnim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\flnim = "C:\\Users\\Admin\\flnim.exe /v" flnim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\flnim = "C:\\Users\\Admin\\flnim.exe /k" flnim.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\flnim = "C:\\Users\\Admin\\flnim.exe /n" flnim.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 1420 f27ddab882671d86410ce7add76e8d2d0a3d352bfcffa3543cd46837bc5a4161.exe 1420 f27ddab882671d86410ce7add76e8d2d0a3d352bfcffa3543cd46837bc5a4161.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe 328 flnim.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1420 f27ddab882671d86410ce7add76e8d2d0a3d352bfcffa3543cd46837bc5a4161.exe 328 flnim.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1420 wrote to memory of 328 1420 f27ddab882671d86410ce7add76e8d2d0a3d352bfcffa3543cd46837bc5a4161.exe 83 PID 1420 wrote to memory of 328 1420 f27ddab882671d86410ce7add76e8d2d0a3d352bfcffa3543cd46837bc5a4161.exe 83 PID 1420 wrote to memory of 328 1420 f27ddab882671d86410ce7add76e8d2d0a3d352bfcffa3543cd46837bc5a4161.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\f27ddab882671d86410ce7add76e8d2d0a3d352bfcffa3543cd46837bc5a4161.exe"C:\Users\Admin\AppData\Local\Temp\f27ddab882671d86410ce7add76e8d2d0a3d352bfcffa3543cd46837bc5a4161.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:1420 -
C:\Users\Admin\flnim.exe"C:\Users\Admin\flnim.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:328
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
92KB
MD503b73a85c6b64cc85d72cbfff29effb0
SHA121d55339889696f5d8543619b828eb2c8dcf677c
SHA256b03bca6879fd966c71387eb10c5f4815dd95743649c44ff34f2f9f23bb457041
SHA5128c1f64e4a12e8207209fbdecca8430ee9fb8c7d872cd3254943d742cc98c28b2ae92b73db461f0ca7ea05d8c56c4ec7b6bc28e3da9306791b84902918a80e122
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Filesize
92KB
MD503b73a85c6b64cc85d72cbfff29effb0
SHA121d55339889696f5d8543619b828eb2c8dcf677c
SHA256b03bca6879fd966c71387eb10c5f4815dd95743649c44ff34f2f9f23bb457041
SHA5128c1f64e4a12e8207209fbdecca8430ee9fb8c7d872cd3254943d742cc98c28b2ae92b73db461f0ca7ea05d8c56c4ec7b6bc28e3da9306791b84902918a80e122