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Analysis
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max time kernel
189s -
max time network
105s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
03/12/2022, 19:08
Static task
static1
Behavioral task
behavioral1
Sample
cc885b5083856bab56d055b4aeadd9537e672245f7dabb0cff0fdb5480a4c491.exe
Resource
win7-20221111-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
cc885b5083856bab56d055b4aeadd9537e672245f7dabb0cff0fdb5480a4c491.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
1 signatures
150 seconds
General
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Target
cc885b5083856bab56d055b4aeadd9537e672245f7dabb0cff0fdb5480a4c491.exe
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Size
476KB
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MD5
f819a8489b6366921d506dd9214719f3
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SHA1
2100bff84d50ff9080ad0b1a01cd388154fb7101
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SHA256
cc885b5083856bab56d055b4aeadd9537e672245f7dabb0cff0fdb5480a4c491
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SHA512
1c1d9d397d50002de3d741cb968bacea7a15c458e866cbe1b7448480d6bb67c54d9fa0046bc8c380e94af865c9fe592a40d942474ea6048b766b666ce7322018
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SSDEEP
12288:QewO7X/Ib9wA1pDdTvSvm3IMSCqNo9XyGgYS6kXX/gUOd:Q4j/Ib9wAzdDv3IMSCqN4XyGgYS6kHSd
Score
10/10
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" taaosis.exe -
Executes dropped EXE 1 IoCs
pid Process 1488 taaosis.exe -
Loads dropped DLL 2 IoCs
pid Process 952 cc885b5083856bab56d055b4aeadd9537e672245f7dabb0cff0fdb5480a4c491.exe 952 cc885b5083856bab56d055b4aeadd9537e672245f7dabb0cff0fdb5480a4c491.exe -
Adds Run key to start application 2 TTPs 51 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /z" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /w" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /v" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /I" taaosis.exe Key created \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\ taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /M" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /m" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /r" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /k" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /x" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /j" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /d" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /F" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /s" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /B" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /S" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /K" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /p" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /A" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /e" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /X" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /W" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /q" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /h" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /H" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /y" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /o" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /E" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /n" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /P" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /l" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /J" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /D" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /a" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /N" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /g" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /u" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /G" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /U" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /Y" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /C" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /T" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /f" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /R" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /i" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /O" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /Q" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /b" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /c" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /L" taaosis.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\taaosis = "C:\\Users\\Admin\\taaosis.exe /Z" taaosis.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 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe 1488 taaosis.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 952 cc885b5083856bab56d055b4aeadd9537e672245f7dabb0cff0fdb5480a4c491.exe 1488 taaosis.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 952 wrote to memory of 1488 952 cc885b5083856bab56d055b4aeadd9537e672245f7dabb0cff0fdb5480a4c491.exe 28 PID 952 wrote to memory of 1488 952 cc885b5083856bab56d055b4aeadd9537e672245f7dabb0cff0fdb5480a4c491.exe 28 PID 952 wrote to memory of 1488 952 cc885b5083856bab56d055b4aeadd9537e672245f7dabb0cff0fdb5480a4c491.exe 28 PID 952 wrote to memory of 1488 952 cc885b5083856bab56d055b4aeadd9537e672245f7dabb0cff0fdb5480a4c491.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\cc885b5083856bab56d055b4aeadd9537e672245f7dabb0cff0fdb5480a4c491.exe"C:\Users\Admin\AppData\Local\Temp\cc885b5083856bab56d055b4aeadd9537e672245f7dabb0cff0fdb5480a4c491.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:952 -
C:\Users\Admin\taaosis.exe"C:\Users\Admin\taaosis.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:1488
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
476KB
MD59761dce76491608f08fff69cac3f84f0
SHA1e8e8b8dc89140e506018f0758ffbf1b16e4b9bd3
SHA2560eeb740dd6902dde2d8a2c37edb66dce25d03a6c9a1941610dc57774a336d1ba
SHA512bae6de063cdca56fd1c10542645617c9f52c8c0e1be3895d757a245e611d95d58c775dd15101562fffef6b9744628e83ef142d97019cfb104945a49afdf15b22
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Filesize
476KB
MD59761dce76491608f08fff69cac3f84f0
SHA1e8e8b8dc89140e506018f0758ffbf1b16e4b9bd3
SHA2560eeb740dd6902dde2d8a2c37edb66dce25d03a6c9a1941610dc57774a336d1ba
SHA512bae6de063cdca56fd1c10542645617c9f52c8c0e1be3895d757a245e611d95d58c775dd15101562fffef6b9744628e83ef142d97019cfb104945a49afdf15b22
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Filesize
476KB
MD59761dce76491608f08fff69cac3f84f0
SHA1e8e8b8dc89140e506018f0758ffbf1b16e4b9bd3
SHA2560eeb740dd6902dde2d8a2c37edb66dce25d03a6c9a1941610dc57774a336d1ba
SHA512bae6de063cdca56fd1c10542645617c9f52c8c0e1be3895d757a245e611d95d58c775dd15101562fffef6b9744628e83ef142d97019cfb104945a49afdf15b22
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Filesize
476KB
MD59761dce76491608f08fff69cac3f84f0
SHA1e8e8b8dc89140e506018f0758ffbf1b16e4b9bd3
SHA2560eeb740dd6902dde2d8a2c37edb66dce25d03a6c9a1941610dc57774a336d1ba
SHA512bae6de063cdca56fd1c10542645617c9f52c8c0e1be3895d757a245e611d95d58c775dd15101562fffef6b9744628e83ef142d97019cfb104945a49afdf15b22