cc3fbfa0fa74fbc726e44e82698122ef072faba171c51b65c769b79b359d6790

Analysis

max time kernel
142s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
27/01/2024, 22:19

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General

Target

$TEMP/certcli.dll
Size

185KB
MD5

f509af061bbf4eb9c39f3cca88c00505
SHA1

a83487b2f41631576606e318ee792de695de72be
SHA256

87ca129af67985dd5ed22913fd02402a9f2a965c13fa83be60fbeb94cbc595cd
SHA512

9b6dee15751d40eb27b8e82bcf88ecee8658be9316a194c8b9492ccf6697f93ae1558adcaa25fe6d317963850bde805f2de6b67cb369adcb228a043741c85365
SSDEEP

3072:2R+zHLqyTs5P/3AqYiHsq4zF4TPhS9JgUjY/Kv0V25N8HJjZ6nssxs3+HNJ8:Z1s5X3ACHsLzFoPhSAUjR0UcH6p

Score

1^/10

Malware Config

Signatures

Modifies registry class 64 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CertificateAuthority.ServerPolicy.1\ = "CertServerPolicy Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7FE0D935-DDA6-443F-85D0-1CFB58FE41DD}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{D99E6E70-FC88-11D0-B498-00A0C90312F3}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AA000926-FFBE-11CF-8800-00A0C903B83C}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CertificateAuthority.ServerExit.1\ = "CertServerPolicy Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CertificateAuthority.ServerPolicy	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CertificateAuthority.GetConfig\CLSID\ = "{C6CC49B0-CE17-11D0-8833-00A0C903B83C}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CertificateAuthority.Request	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{98AFF3F0-5524-11D0-8812-00A0C903B83C}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{98AFF3F0-5524-11D0-8812-00A0C903B83C}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CertificateAuthority.Request.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CertificateAuthority.Request\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4C4A5E40-732C-11D0-8816-00A0C903B83C}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{5422FD3A-D4B8-4CEF-A12E-E87D4CA22E90}\NumMethods	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{D99E6E70-FC88-11D0-B498-00A0C90312F3}\NumMethods	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CertificateAuthority.Config	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C6CC49B0-CE17-11D0-8833-00A0C903B83C}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{5422FD3A-D4B8-4CEF-A12E-E87D4CA22E90}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CertificateAuthority.ServerExit.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CertificateAuthority.GetConfig.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C6CC49B0-CE17-11D0-8833-00A0C903B83C}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7FE0D935-DDA6-443F-85D0-1CFB58FE41DD}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CertificateAuthority.Config.1\ = "CertConfig Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{372FCE38-4324-11D0-8810-00A0C903B83C}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{372FCE38-4324-11D0-8810-00A0C903B83C}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{5422FD3A-D4B8-4CEF-A12E-E87D4CA22E90}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CertificateAuthority.ServerPolicy\ = "CertServerPolicy Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4C4A5E40-732C-11D0-8816-00A0C903B83C}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4C4A5E40-732C-11D0-8816-00A0C903B83C}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{372FCE38-4324-11D0-8810-00A0C903B83C}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CertificateAuthority.ServerExit.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CertificateAuthority.ServerExit	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CertificateAuthority.Request\CLSID\ = "{98AFF3F0-5524-11D0-8812-00A0C903B83C}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AA000926-FFBE-11CF-8800-00A0C903B83C}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CertificateAuthority.ServerExit\ = "CertServerPolicy Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CertificateAuthority.ServerExit\CLSID\ = "{4C4A5E40-732C-11D0-8816-00A0C903B83C}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CertificateAuthority.GetConfig\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CertificateAuthority.ServerPolicy.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4C4A5E40-732C-11D0-8816-00A0C903B83C}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000_Classes\WOW6432Node\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CertificateAuthority.Config\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7FE0D935-DDA6-443F-85D0-1CFB58FE41DD}\InProcServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{D99E6E70-FC88-11D0-B498-00A0C90312F3}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CertificateAuthority.Config\CLSID\ = "{372FCE38-4324-11D0-8810-00A0C903B83C}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CertificateAuthority.GetConfig.1\ = "CertGetConfig Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C6CC49B0-CE17-11D0-8833-00A0C903B83C}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CertificateAuthority.ServerPolicy\CLSID\ = "{AA000926-FFBE-11CF-8800-00A0C903B83C}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7FE0D935-DDA6-443F-85D0-1CFB58FE41DD}\NumMethods	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{D99E6E71-FC88-11D0-B498-00A0C90312F3}\NumMethods	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CertificateAuthority.Config.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{372FCE38-4324-11D0-8810-00A0C903B83C}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CertificateAuthority.GetConfig	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CertificateAuthority.Request.1\ = "CertRequest Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CertificateAuthority.Request\ = "CertRequest Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{98AFF3F0-5524-11D0-8812-00A0C903B83C}\ProgID	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000_Classes\WOW6432Node\Interface	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{7FE0D935-DDA6-443F-85D0-1CFB58FE41DD}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CertificateAuthority.Config\ = "CertConfig Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CertificateAuthority.GetConfig.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CertificateAuthority.ServerPolicy\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AA000926-FFBE-11CF-8800-00A0C903B83C}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CertificateAuthority.ServerExit\CLSID	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3648 wrote to memory of 1064	3648	regsvr32.exe	86
PID 3648 wrote to memory of 1064	3648	regsvr32.exe	86
PID 3648 wrote to memory of 1064	3648	regsvr32.exe	86

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\$TEMP\certcli.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:3648
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\$TEMP\certcli.dll
  2⤵
  - Modifies registry class
  PID:1064

Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix

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