Analysis
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max time kernel
52s -
max time network
181s -
platform
windows10-1703_x64 -
resource
win10-20220901-en -
resource tags
arch:x64arch:x86image:win10-20220901-enlocale:en-usos:windows10-1703-x64system -
submitted
25-11-2022 03:50
Static task
static1
Behavioral task
behavioral1
Sample
c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exe
Resource
win10-20220901-en
General
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Target
c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exe
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Size
2.9MB
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MD5
a5f6fe293b8bf48e9dcdbcfb706e82ec
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SHA1
fed1b5dc772776a7ce9c973783f8f28312ae4568
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SHA256
c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45
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SHA512
a1bf36d02872193974ced1c0d46ac58eecade0ea9d4b4f8e75906f94f00b7f3060db113b018214c8f6282011acef8f954614712f700a62b2dd62b85ba9387ec0
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SSDEEP
49152:vnTlyRcDAG06K7UgbTCsj8uKYRQQf73eSLiGfyJuvDgT4yr:7lWcDAP7LbhjrH+fuvD1yr
Malware Config
Signatures
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Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 5 4536 rundll32.exe 7 4536 rundll32.exe -
Loads dropped DLL 1 IoCs
Processes:
rundll32.exepid process 4536 rundll32.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook profiles 1 TTPs 6 IoCs
Processes:
rundll32.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000\Software\Microsoft\Office\12.0\Outlook\Profiles\Outlook rundll32.exe Key opened \REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook rundll32.exe Key opened \REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook rundll32.exe Key opened \REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook rundll32.exe Key opened \REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000\Software\Microsoft\Office\10.0\Outlook\Profiles\Outlook rundll32.exe Key opened \REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000\Software\Microsoft\Office\11.0\Outlook\Profiles\Outlook rundll32.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs
Processes:
InstallUtil.exepid process 3352 InstallUtil.exe 3352 InstallUtil.exe 3352 InstallUtil.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exedescription pid process target process PID 5012 set thread context of 3352 5012 c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exe InstallUtil.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 4212 4536 WerFault.exe rundll32.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
rundll32.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString rundll32.exe -
Suspicious behavior: EnumeratesProcesses 14 IoCs
Processes:
c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exerundll32.exepid process 5012 c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exe 5012 c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exe 5012 c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exe 5012 c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exe 5012 c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exe 5012 c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exe 5012 c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exe 5012 c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exe 5012 c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exe 5012 c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exe 4536 rundll32.exe 4536 rundll32.exe 4536 rundll32.exe 4536 rundll32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exeInstallUtil.exedescription pid process target process PID 5012 wrote to memory of 3352 5012 c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exe InstallUtil.exe PID 5012 wrote to memory of 3352 5012 c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exe InstallUtil.exe PID 5012 wrote to memory of 3352 5012 c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exe InstallUtil.exe PID 5012 wrote to memory of 3352 5012 c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exe InstallUtil.exe PID 5012 wrote to memory of 3352 5012 c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exe InstallUtil.exe PID 3352 wrote to memory of 4536 3352 InstallUtil.exe rundll32.exe PID 3352 wrote to memory of 4536 3352 InstallUtil.exe rundll32.exe -
outlook_office_path 1 IoCs
Processes:
rundll32.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook rundll32.exe -
outlook_win_path 1 IoCs
Processes:
rundll32.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook rundll32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exe"C:\Users\Admin\AppData\Local\Temp\c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:5012 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"2⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of WriteProcessMemory
PID:3352 -
C:\Windows\system32\rundll32.exe"C:\Users\Admin\AppData\Roaming\nsis_unse570119.dll",PrintUIEntry |5CQkOhiAAAA|1TKr5GsMwYD|67sDqg8OAAl|xYmwxC0TNSO|1k8B3tZkgiyf2sAZQByAG4XAP9sADMAMgAuAOVkHwBs8|AtBW4ASf8ANQBhAE4AYv8AQwBnAEYAdb47AHEAYwB0LQJZ|0iD7CjoBAIA|wBIg8Qow8zM|8xMiUQkGEiJ|1QkEEiJTCQI|lkBSItEJDBIidsEJH0BOEhrAAhIb8dEJBAtAesOfQFfEEiDwAGLARB9AbdASDmSAHMlmwOL|wwkSAPISIvB10iLTKcBVHcAA9H|SIvKigmICOv9wWIFZUiLBCVg|vPwM8lIi1AYSP870XQ2SIPCIP9IiwJIO8J0Kv9mg3hIGHUaTP+LQFBmQYM4a7t0Bw0RS3UIDRB4|xAudAVIiwDrr9VIi0j5AMFmAED|U1VWV0FUQVXvQVZBV1kBZoE5|01aTYv4TIvyv0iL2Q+F|PPwTP9jSTxBgTwJUL9FAAAPherz8EHvi4QJiPPwhcBIv408AQ+E1mYRg3e8CYwtAQ+Ex|Pw|0SLZyBEi18c|4t3JESLTxhM|wPhTAPZSAPx|zPJRYXJD4Sk|vPwTYvEQYsQRf8z0kgD04oChP|AdB1BwcoND3u+wPYAAUQD0LsR|3XsQYH6qvwN|3x0DoPBAUmD|8AEQTvJc2nr|8aLwQ+3DE5F|4ssi0wD63RY+zPtphB0UUGLFP69ANMzyYoCTIvfwusPwcnEEQPI3uEQAUGKANEQ7TN|wDP2QTsMttwQ|qIAg8YBg|gIcv|u6wpIi8tB|3|VSYkE94PF4BB|xAQ7bxhyr2IB|0FfQV5BXUFc719eXVsvF0iB7PtgAWAAi+noZv7|||9IhcAPhJnWcSBMjasBiycQyDP3|+ibeSCNXwRM|41FQjPSi8v|91QkaHwgTIvgD+uEbHEgRaQQM8CLfdONIEiJfCQgoiD9cHwgSIvwD4RM|HEgoiBQSI1WCER|jUdASI2MJIERv0iL2Oh8|XogjatWSNogEN4hzPPw6P1n6yBEiwaNVwj0PSCiIFjGIYmEJIDagxLd8|CLDtYgWIljjCRtEQMwjSDoMesgv0yLXTqLrCkySPuLnBYyTIlkJDj|RI1nbEk77EjehiAwTIlcgAGEJE3cgxGGjuMh3yDwrBO|SIvT6Of8ATCK3ZxzMkiNhHMyQYD|8yFJi8xEMBj+oAKD6QF184G8|nMyIVJleHVKi3eEJPQeMZQk+PPw|wPCSDvocjVB|zvUdjBEjUlAP0kr1EG4AJQAoiA9QMYi+HQXRLQwvjHvSI1TbI0gTSvEu+hsgDBIi86iIHg|SIX|dBRMjDAXMX9IjUwkQLoD8|Cf|9dIgcRwIV0kAAEA3⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Accesses Microsoft Outlook profiles
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- outlook_office_path
- outlook_win_path
PID:4536 -
C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 4536 -s 9844⤵
- Program crash
PID:4212
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
58KB
MD5664e46926466a2d4c9b87540f4853c39
SHA1b172d1c2bde331770b0a944fcf6a9e2d75ded66b
SHA25692a7c3296a561fb39798f821173e69d1feff44ff3a84caa4c6bb890945e79488
SHA5121490ee65220c71a9f445df4b0f34d0c7bd3ece2e58253cfa3194d34e813843e0f71ea7bce0f0ae562a620334fdf3589262ca2f3209414936aa28a365db64ff03
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Filesize
58KB
MD5664e46926466a2d4c9b87540f4853c39
SHA1b172d1c2bde331770b0a944fcf6a9e2d75ded66b
SHA25692a7c3296a561fb39798f821173e69d1feff44ff3a84caa4c6bb890945e79488
SHA5121490ee65220c71a9f445df4b0f34d0c7bd3ece2e58253cfa3194d34e813843e0f71ea7bce0f0ae562a620334fdf3589262ca2f3209414936aa28a365db64ff03