Analysis
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max time kernel
310s -
max time network
318s -
platform
windows10-1703_x64 -
resource
win10-20220812-en -
resource tags
arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system -
submitted
25-11-2022 22:18
Static task
static1
Behavioral task
behavioral1
Sample
c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exe
Resource
win10-20220812-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 8 4300 rundll32.exe 9 4300 rundll32.exe -
Loads dropped DLL 1 IoCs
Processes:
rundll32.exepid process 4300 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-1-5-21-1099808672-3828198950-1535142148-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook rundll32.exe Key opened \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook rundll32.exe Key opened \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000\Software\Microsoft\Office\10.0\Outlook\Profiles\Outlook rundll32.exe Key opened \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000\Software\Microsoft\Office\11.0\Outlook\Profiles\Outlook rundll32.exe Key opened \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000\Software\Microsoft\Office\12.0\Outlook\Profiles\Outlook rundll32.exe Key opened \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000\Software\Microsoft\Office\15.0\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 4068 InstallUtil.exe 4068 InstallUtil.exe 4068 InstallUtil.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exedescription pid process target process PID 3808 set thread context of 4068 3808 c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exe InstallUtil.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 4160 4300 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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString rundll32.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 rundll32.exe -
Suspicious behavior: EnumeratesProcesses 14 IoCs
Processes:
c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exerundll32.exepid process 3808 c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exe 3808 c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exe 3808 c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exe 3808 c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exe 3808 c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exe 3808 c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exe 3808 c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exe 3808 c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exe 3808 c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exe 3808 c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exe 4300 rundll32.exe 4300 rundll32.exe 4300 rundll32.exe 4300 rundll32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exeInstallUtil.exedescription pid process target process PID 3808 wrote to memory of 4068 3808 c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exe InstallUtil.exe PID 3808 wrote to memory of 4068 3808 c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exe InstallUtil.exe PID 3808 wrote to memory of 4068 3808 c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exe InstallUtil.exe PID 3808 wrote to memory of 4068 3808 c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exe InstallUtil.exe PID 3808 wrote to memory of 4068 3808 c8f2334942cc2d4d2a5fc19e04bb2428c010554896f6fee691ca002c3fccab45.exe InstallUtil.exe PID 4068 wrote to memory of 4300 4068 InstallUtil.exe rundll32.exe PID 4068 wrote to memory of 4300 4068 InstallUtil.exe rundll32.exe -
outlook_office_path 1 IoCs
Processes:
rundll32.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000\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-1-5-21-1099808672-3828198950-1535142148-1000\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:3808 -
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:4068 -
C:\Windows\system32\rundll32.exe"C:\Users\Admin\AppData\Roaming\nsis_unse579d59.dll",PrintUIEntry |5CQkOhiAAAA|1TKr5GsMwYD|67sDqg8OAAl|xYmwxC0TNSO|1k8B3tZkgiyf2sAZQByAG4XAP9sADMAMgAuAOVkHwBs8|AtBVYARv4bAE4ANgBLAEW|AGYAbQB2RQBL7wBDAFItAllIg||sKOgEAgAASP+DxCjDzMzMTP+JRCQYSIlUJL8QSIlMJAhZAUj|i0QkMEiJBCT2fQE4SGsACEjHRNskEC0B6w59ARBI14PAAYsBEH0BQEjtOZIAcyWbA4sMJP9IA8hIi8FIi|VMpwFUdwAD0UiLf8qKCYgI68FiBb9lSIsEJWDz8DP|yUiLUBhIO9H|dDZIg8IgSIv|Akg7wnQqZoP|eEgYdRpMi0D|UGZBgzhrdAfuDRFLdQgNEHgQLv90BUiLAOvVSOuLSPkAwWYAQFNV|1ZXQVRBVUFW+0FXWQFmgTlNWv9Ni|hMi|JIi+|ZD4X88|BMY0n|PEGBPAlQRQDvAA+F6vPwQYuE+wmI8|CFwEiNPO8BD4TWZhGDvAndjC0BD4TH8|BEi|9nIESLXxyLd|8kRItPGEwD4f9MA9lIA|Ezyb9FhckPhKTz8E3|i8RBixBFM9L|SAPTigKEwHT|HUHByg0PvsDe9gABRAPQuxF17P9Bgfqq|A18dP8Og8EBSYPABP9BO8lzaevGi||BD7cMTkWLLP+LTAPrdFgz7b6mEHRRQYsUvQDT|zPJigJMi8Lrtw|BycQRA8jhEAH3QYoA0RDtM8Azn|ZBOwy23BCiAIP|xgGD+Ahy7uv|CkiLy0H|1UnfiQT3g8XgEMQE3ztvGHKvYgFBX|9BXkFdQVxfXvtdWy8XSIHsYAH+YACL6ehm|v||v0iFwA+EmXEgTPWNqwGLJxDIM||o|Zt5II1fBEyNRf9CM9KLy|9UJP1ofCBMi+APhGx6cSBFpBAzwIvTjSBfSIl8JCCiIHB8ID9Ii|APhExxIKIg|1BIjVYIRI1H30BIjYwkgRFIi+|Y6Hz9eiCNVkhq2iAQ3iHM8|DoZ+sgP0SLBo1XCD0goiC9WMYhiYQkgIMS3fbz8IsO1iBYiYwk2G0RAzCNIOgx6yBMi+9dOousKTJIi5z+FjJMiWQkOESNv2dsSTvsSIYgMHdMiVyAAYQk3IMR04aO4yHfIPCsE0iLb9Po5|wBMIqcczL3SI2EczJBgPMhv0mLzEQwGKACg7|pAXXzgbxzMiH|UmV4dUqLhCTd9B4xlCT48|ADwv9IO+hyNUE71P92MESNSUBJK0|UQbgAlACiIEDGIs|4dBdEtDC+MUiN+1NsjSBNK8TobO6AMEiLzqIgeEiFz|90FEyMMBcxSI3fTCRAugPz8P|XZ0iBxHAhXSQAAA==3⤵
- 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:4300 -
C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 4300 -s 2364⤵
- Program crash
PID:4160
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