Analysis
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max time kernel
151s -
max time network
51s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
04/12/2022, 00:57
Static task
static1
Behavioral task
behavioral1
Sample
8e6feb197adca99ddbbd6584e3e2fcdf09f6dc417391e0a575aac17d62c9c3a2.dll
Resource
win7-20220901-en
windows7-x64
5 signatures
150 seconds
Behavioral task
behavioral2
Sample
8e6feb197adca99ddbbd6584e3e2fcdf09f6dc417391e0a575aac17d62c9c3a2.dll
Resource
win10v2004-20220812-en
windows10-2004-x64
6 signatures
150 seconds
General
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Target
8e6feb197adca99ddbbd6584e3e2fcdf09f6dc417391e0a575aac17d62c9c3a2.dll
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Size
25KB
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MD5
37cd5686f9cc9b0757632e04491dc750
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SHA1
ed20f3704896aedad21eba2bf33da94979f9c54f
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SHA256
8e6feb197adca99ddbbd6584e3e2fcdf09f6dc417391e0a575aac17d62c9c3a2
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SHA512
98f982e1165c633250eb1167fb02c5a31e5f28f57c544ca6b4161680d2b495acfa1461ebe59ba03343fee6987eb7f447e1781f32e272e81767dbf40bbbfd5037
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SSDEEP
768:FrHFI0/T/ltj9LEPgf2cTeXsulEt8f30MFseM:ZHFJ3pLPf2qeXsoFFM
Score
5/10
Malware Config
Signatures
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Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs
pid Process 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\msvcr.dll rundll32.exe File created C:\Windows\msvcr.dll rundll32.exe -
Modifies registry class 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7B3AC3FA-B695-41b6-BAA0-860EB5EB6FD6} rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7B3AC3FA-B695-41b6-BAA0-860EB5EB6FD6}\{F69EB73C-700A-42c9-8F9D-E8C4ABC27EF3} = "8e6feb197adca99ddbbd6584e3e2fcdf09f6dc417391e0a575aac17d62c9c3a2.dll,1285097749,1563368310,-1814625877" rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InProcServer32 rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9} rundll32.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe 1204 rundll32.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 1308 wrote to memory of 1356 1308 rundll32.exe 27 PID 1308 wrote to memory of 1356 1308 rundll32.exe 27 PID 1308 wrote to memory of 1356 1308 rundll32.exe 27 PID 1308 wrote to memory of 1356 1308 rundll32.exe 27 PID 1308 wrote to memory of 1356 1308 rundll32.exe 27 PID 1308 wrote to memory of 1356 1308 rundll32.exe 27 PID 1308 wrote to memory of 1356 1308 rundll32.exe 27 PID 1356 wrote to memory of 1204 1356 rundll32.exe 28 PID 1356 wrote to memory of 1204 1356 rundll32.exe 28 PID 1356 wrote to memory of 1204 1356 rundll32.exe 28 PID 1356 wrote to memory of 1204 1356 rundll32.exe 28 PID 1356 wrote to memory of 1204 1356 rundll32.exe 28 PID 1356 wrote to memory of 1204 1356 rundll32.exe 28 PID 1356 wrote to memory of 1204 1356 rundll32.exe 28
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\8e6feb197adca99ddbbd6584e3e2fcdf09f6dc417391e0a575aac17d62c9c3a2.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:1308 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\8e6feb197adca99ddbbd6584e3e2fcdf09f6dc417391e0a575aac17d62c9c3a2.dll,#12⤵
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1356 -
C:\Windows\SysWOW64\rundll32.exerundll32 "C:\Windows\msvcr.dll",_RunAs@03⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:1204
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Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
25KB
MD537cd5686f9cc9b0757632e04491dc750
SHA1ed20f3704896aedad21eba2bf33da94979f9c54f
SHA2568e6feb197adca99ddbbd6584e3e2fcdf09f6dc417391e0a575aac17d62c9c3a2
SHA51298f982e1165c633250eb1167fb02c5a31e5f28f57c544ca6b4161680d2b495acfa1461ebe59ba03343fee6987eb7f447e1781f32e272e81767dbf40bbbfd5037