Analysis
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max time kernel
38s -
max time network
45s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
19/09/2022, 14:39
Behavioral task
behavioral1
Sample
47e51cea90e3dff5b2ce0194cf5b2f57c0ed37e38c577e43d4a7914787e497ee.dll
Resource
win7-20220812-en
7 signatures
150 seconds
General
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Target
47e51cea90e3dff5b2ce0194cf5b2f57c0ed37e38c577e43d4a7914787e497ee.dll
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Size
1.9MB
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MD5
ce063353aca4630af1f0bad2fe8eb8ef
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SHA1
3a1d67b65a589f83b4f26b5e7a577ba4d0e77a55
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SHA256
47e51cea90e3dff5b2ce0194cf5b2f57c0ed37e38c577e43d4a7914787e497ee
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SHA512
f8c9c1324f6cfdab947fa4c4ede43ea73b419cd24c238175549e4b96bcc0005bc4de6e24c59b0e0a6899f2e8725aa1de5bbe22647e259feeab70ea701f2d0224
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SSDEEP
49152:WQAiaW51TJSYbzpA6JqwdVyQs2vdSjRDCqprXT:mWxx5cw9Fdfa
Malware Config
Signatures
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resource yara_rule behavioral1/memory/1960-57-0x0000000001F50000-0x00000000022E1000-memory.dmp upx behavioral1/memory/1960-64-0x0000000001F50000-0x00000000022E1000-memory.dmp upx behavioral1/memory/1960-66-0x0000000001F50000-0x00000000022E1000-memory.dmp upx -
Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion regsvr32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate regsvr32.exe -
Installs/modifies Browser Helper Object 2 TTPs 2 IoCs
BHOs are DLL modules which act as plugins for Internet Explorer.
description ioc Process Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{83447388-F457-4723-9D09-6F486F161E1A} regsvr32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{83447388-F457-4723-9D09-6F486F161E1A}\NoExplorer = "1" regsvr32.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\MAIN\FeatureControl\FEATURE_ENABLE_SCRIPT_PASTE_URLACTION_IF_PROMPT\iexplore.exe = "1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_ENABLE_SCRIPT_PASTE_URLACTION_IF_PROMPT regsvr32.exe -
Modifies registry class 7 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{83447388-F457-4723-9D09-6F486F161E1A}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\47e51cea90e3dff5b2ce0194cf5b2f57c0ed37e38c577e43d4a7914787e497ee.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{83447388-F457-4723-9D09-6F486F161E1A}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8F577DD6-A889-B773-13C5-1FBA13C51FBA} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8F577DD6-A889-B773-13C5-1FBA13C51FBA}\ = "Outlook FAT Management Module" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{83447388-F457-4723-9D09-6F486F161E1A} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{83447388-F457-4723-9D09-6F486F161E1A}\ regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{83447388-F457-4723-9D09-6F486F161E1A}\InprocServer32 regsvr32.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: 33 1960 regsvr32.exe Token: SeIncBasePriorityPrivilege 1960 regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 780 wrote to memory of 1960 780 regsvr32.exe 28 PID 780 wrote to memory of 1960 780 regsvr32.exe 28 PID 780 wrote to memory of 1960 780 regsvr32.exe 28 PID 780 wrote to memory of 1960 780 regsvr32.exe 28 PID 780 wrote to memory of 1960 780 regsvr32.exe 28 PID 780 wrote to memory of 1960 780 regsvr32.exe 28 PID 780 wrote to memory of 1960 780 regsvr32.exe 28
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\47e51cea90e3dff5b2ce0194cf5b2f57c0ed37e38c577e43d4a7914787e497ee.dll1⤵
- Suspicious use of WriteProcessMemory
PID:780 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\47e51cea90e3dff5b2ce0194cf5b2f57c0ed37e38c577e43d4a7914787e497ee.dll2⤵
- Checks BIOS information in registry
- Installs/modifies Browser Helper Object
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
PID:1960
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