221e8ed761bb45fb42c5a53b0fb1a2dd44c08766a48d5b0435507d5d198f0cac

Analysis

max time kernel
117s
max time network
124s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
20-04-2024 08:15

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General

Target

DAO350.dll
Size

556KB
MD5

8888bdbd4e118d915d40a11748282bca
SHA1

4e8822d2242d175cc3d708843e2cd71b7ee7033d
SHA256

a4b20735be317a924d2e36707baaf911fbae890ca53c5044fb506f15d33bcb6d
SHA512

a96f5e72905571de84f515dd8a19c87d5143ead532bf01f0132da8262974bfaf910f24b466d49cd4ee83845fc65f02c273a550786854aec3e0f4fa713929b562
SSDEEP

6144:lO4zReIcAtVXrPsS3Syvqe4v2QeD8yCaDSCwBwAlvz6Bm2hf9QdHHtMMeOh4J7Wu:lO4zRe7AvBiyvqe4pe7wHlv1tO7VYFk

Score

1^/10

Malware Config

Signatures

Modifies registry class 64 IoCs

Processes:

regsvr32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{00000091-0000-0010-8000-00AA006D2EA4}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\DAO.TableDef.35	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0000000A-0000-0010-8000-00AA006D2EA4}\TypeLib\ = "{00025E01-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{00000073-0000-0010-8000-00AA006D2EA4}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{00000063-0000-0010-8000-00AA006D2EA4}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{00000089-0000-0010-8000-00AA006D2EA4}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{00000025-0000-0010-8000-00AA006D2EA4}\TypeLib\ = "{00025E01-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{00000079-0000-0010-8000-00AA006D2EA4}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{00000029-0000-0010-8000-00AA006D2EA4}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\DAO.Index.35	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\DAO.Relation.35	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{000000A0-0000-0010-8000-00AA006D2EA4}\ = "_Collection"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0000000A-0000-0010-8000-00AA006D2EA4}\TypeLib\Version = "4.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0000004B-0000-0010-8000-00AA006D2EA4}\TypeLib\ = "{00025E01-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{00000079-0000-0010-8000-00AA006D2EA4}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{00000053-0000-0010-8000-00AA006D2EA4}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{00000027-0000-0010-8000-00AA006D2EA4}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{00000093-0000-0010-8000-00AA006D2EA4}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{00000015-0000-0010-8000-00AA006D2EA4}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0000004B-0000-0010-8000-00AA006D2EA4}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{00000071-0000-0010-8000-00AA006D2EA4}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{00000081-0000-0010-8000-00AA006D2EA4}\TypeLib\Version = "4.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0000006B-0000-0010-8000-00AA006D2EA4}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{00025E01-0000-0000-C000-000000000046}\4.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0000006B-0000-0010-8000-00AA006D2EA4}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{00000091-0000-0010-8000-00AA006D2EA4}\TypeLib\Version = "4.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{00000041-0000-0010-8000-00AA006D2EA4}\ = "Connection"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{00000053-0000-0010-8000-00AA006D2EA4}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{00000027-0000-0010-8000-00AA006D2EA4}\ = "Property"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0000009B-0000-0010-8000-00AA006D2EA4}\TypeLib\Version = "4.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\DAO.Index.35\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{00000013-0000-0010-8000-00AA006D2EA4}\ProgID\ = "DAO.TableDef.35"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{00000013-0000-0010-8000-00AA006D2EA4}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\DAO350.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{00000015-0000-0010-8000-00AA006D2EA4}\ProgID\ = "DAO.Index.35"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{00000031-0000-0010-8000-00AA006D2EA4}\TypeLib\Version = "4.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{00000079-0000-0010-8000-00AA006D2EA4}\TypeLib\ = "{00025E01-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0000007B-0000-0010-8000-00AA006D2EA4}\ = "QueryDefs"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{00000031-0000-0010-8000-00AA006D2EA4}\ = "Recordset"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\DAO.User.35\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\DAO.Relation.35\CLSID\ = "{00000019-0000-0010-8000-00AA006D2EA4}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{00000018-0000-0010-8000-00AA006D2EA4}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{000000A2-0000-0010-8000-00AA006D2EA4}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{00000025-0000-0010-8000-00AA006D2EA4}\TypeLib\Version = "4.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0000005D-0000-0010-8000-00AA006D2EA4}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0000006B-0000-0010-8000-00AA006D2EA4}\ = "Users"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{00000093-0000-0010-8000-00AA006D2EA4}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{00000089-0000-0010-8000-00AA006D2EA4}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{00000029-0000-0010-8000-00AA006D2EA4}\TypeLib\ = "{00025E01-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{0000009B-0000-0010-8000-00AA006D2EA4}\ = "Documents"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{00000015-0000-0010-8000-00AA006D2EA4}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{000000A0-0000-0010-8000-00AA006D2EA4}\TypeLib\ = "{00025E01-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{00000039-0000-0010-8000-00AA006D2EA4}\TypeLib\ = "{00025E01-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{00000071-0000-0010-8000-00AA006D2EA4}\ = "Database"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{00000033-0000-0010-8000-00AA006D2EA4}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{00000041-0000-0010-8000-00AA006D2EA4}\TypeLib\Version = "4.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{00000061-0000-0010-8000-00AA006D2EA4}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{00000063-0000-0010-8000-00AA006D2EA4}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{00000029-0000-0010-8000-00AA006D2EA4}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{00000010-0000-0010-8000-00AA006D2EA4}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{00000010-0000-0010-8000-00AA006D2EA4}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{00000023-0000-0010-8000-00AA006D2EA4}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{00000071-0000-0010-8000-00AA006D2EA4}\TypeLib\ = "{00025E01-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{00000083-0000-0010-8000-00AA006D2EA4}\ = "Parameters"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{00000073-0000-0010-8000-00AA006D2EA4}\TypeLib\Version = "4.0"	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

regsvr32.exe

description	pid	process	target process
PID 1760 wrote to memory of 2604	1760	regsvr32.exe	regsvr32.exe
PID 1760 wrote to memory of 2604	1760	regsvr32.exe	regsvr32.exe
PID 1760 wrote to memory of 2604	1760	regsvr32.exe	regsvr32.exe
PID 1760 wrote to memory of 2604	1760	regsvr32.exe	regsvr32.exe
PID 1760 wrote to memory of 2604	1760	regsvr32.exe	regsvr32.exe
PID 1760 wrote to memory of 2604	1760	regsvr32.exe	regsvr32.exe
PID 1760 wrote to memory of 2604	1760	regsvr32.exe	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\DAO350.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1760

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\DAO350.dll
2⤵
- Modifies registry class
PID:2604

Analysis

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Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix

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