Analysis
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max time kernel
150s -
max time network
50s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
02-10-2022 00:30
Static task
static1
Behavioral task
behavioral1
Sample
a5c01b5f8ee0caf1fb64941c0e1db370b02e8a2517c5088fdc5df1bc78892df1.exe
Resource
win7-20220901-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
a5c01b5f8ee0caf1fb64941c0e1db370b02e8a2517c5088fdc5df1bc78892df1.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
a5c01b5f8ee0caf1fb64941c0e1db370b02e8a2517c5088fdc5df1bc78892df1.exe
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Size
152KB
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MD5
6e3ff23a5b765ff6c8768ce39fe4af60
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SHA1
ed219ed7881c61aa433c6417649275dcaa135118
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SHA256
a5c01b5f8ee0caf1fb64941c0e1db370b02e8a2517c5088fdc5df1bc78892df1
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SHA512
eb39fdef65c1a0cb1953696db349378a008330344d5ef49fabb5075a753a017a81a3777f7de0d0cdf42c8e5971605d84d6d59602fbe10c2d64940be3062d0092
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SSDEEP
3072:0hUFgdTQtKrueiygR4O6avJamofCoE5j4oQ5:Jg9QtKSMgR56avUmXdk
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" a5c01b5f8ee0caf1fb64941c0e1db370b02e8a2517c5088fdc5df1bc78892df1.exe Set value (int) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" rnnaip.exe -
Executes dropped EXE 1 IoCs
pid Process 1704 rnnaip.exe -
Loads dropped DLL 2 IoCs
pid Process 1464 a5c01b5f8ee0caf1fb64941c0e1db370b02e8a2517c5088fdc5df1bc78892df1.exe 1464 a5c01b5f8ee0caf1fb64941c0e1db370b02e8a2517c5088fdc5df1bc78892df1.exe -
Adds Run key to start application 2 TTPs 54 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /W" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /p" a5c01b5f8ee0caf1fb64941c0e1db370b02e8a2517c5088fdc5df1bc78892df1.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /P" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /d" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /G" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /C" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /q" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /s" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /c" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /F" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /i" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /S" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /e" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /o" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /b" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /v" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /g" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /Q" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /r" rnnaip.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ a5c01b5f8ee0caf1fb64941c0e1db370b02e8a2517c5088fdc5df1bc78892df1.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /L" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /j" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /z" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /w" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /x" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /K" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /Z" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /E" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /B" rnnaip.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /T" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /M" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /D" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /O" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /J" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /a" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /l" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /N" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /t" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /I" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /V" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /p" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /h" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /Y" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /U" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /H" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /n" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /R" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /f" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /A" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /u" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /m" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /k" rnnaip.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\rnnaip = "C:\\Users\\Admin\\rnnaip.exe /y" rnnaip.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 1464 a5c01b5f8ee0caf1fb64941c0e1db370b02e8a2517c5088fdc5df1bc78892df1.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe 1704 rnnaip.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1464 a5c01b5f8ee0caf1fb64941c0e1db370b02e8a2517c5088fdc5df1bc78892df1.exe 1704 rnnaip.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1464 wrote to memory of 1704 1464 a5c01b5f8ee0caf1fb64941c0e1db370b02e8a2517c5088fdc5df1bc78892df1.exe 27 PID 1464 wrote to memory of 1704 1464 a5c01b5f8ee0caf1fb64941c0e1db370b02e8a2517c5088fdc5df1bc78892df1.exe 27 PID 1464 wrote to memory of 1704 1464 a5c01b5f8ee0caf1fb64941c0e1db370b02e8a2517c5088fdc5df1bc78892df1.exe 27 PID 1464 wrote to memory of 1704 1464 a5c01b5f8ee0caf1fb64941c0e1db370b02e8a2517c5088fdc5df1bc78892df1.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\a5c01b5f8ee0caf1fb64941c0e1db370b02e8a2517c5088fdc5df1bc78892df1.exe"C:\Users\Admin\AppData\Local\Temp\a5c01b5f8ee0caf1fb64941c0e1db370b02e8a2517c5088fdc5df1bc78892df1.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:1464 -
C:\Users\Admin\rnnaip.exe"C:\Users\Admin\rnnaip.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:1704
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
152KB
MD5a3116810e9c65bcdb7777cee74a4b2c3
SHA1430a90f08e512d6d695c6a7895910fee3bfcba81
SHA2565c1d866a44654f8c0ac50f0540c4c34c99067c52f8533717c205456eeefd7ef7
SHA512b8b89896a9e5235941c95aa1ccd455294bd7018974b3d19f38cb076ceecd8c22d8623a71a275444f9fdaf8a697f014e6117cc2fbfcc09beee15651fca815cc8b
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Filesize
152KB
MD5a3116810e9c65bcdb7777cee74a4b2c3
SHA1430a90f08e512d6d695c6a7895910fee3bfcba81
SHA2565c1d866a44654f8c0ac50f0540c4c34c99067c52f8533717c205456eeefd7ef7
SHA512b8b89896a9e5235941c95aa1ccd455294bd7018974b3d19f38cb076ceecd8c22d8623a71a275444f9fdaf8a697f014e6117cc2fbfcc09beee15651fca815cc8b
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Filesize
152KB
MD5a3116810e9c65bcdb7777cee74a4b2c3
SHA1430a90f08e512d6d695c6a7895910fee3bfcba81
SHA2565c1d866a44654f8c0ac50f0540c4c34c99067c52f8533717c205456eeefd7ef7
SHA512b8b89896a9e5235941c95aa1ccd455294bd7018974b3d19f38cb076ceecd8c22d8623a71a275444f9fdaf8a697f014e6117cc2fbfcc09beee15651fca815cc8b
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Filesize
152KB
MD5a3116810e9c65bcdb7777cee74a4b2c3
SHA1430a90f08e512d6d695c6a7895910fee3bfcba81
SHA2565c1d866a44654f8c0ac50f0540c4c34c99067c52f8533717c205456eeefd7ef7
SHA512b8b89896a9e5235941c95aa1ccd455294bd7018974b3d19f38cb076ceecd8c22d8623a71a275444f9fdaf8a697f014e6117cc2fbfcc09beee15651fca815cc8b