e61755374bbb0eed7350da3bff07f3b77086165904025684b880305dafc4f007

Analysis

max time kernel
150s
max time network
144s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
27/01/2024, 03:51

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General

Target

79341b604b5a392afd2214d1154f25b2.exe
Size

87KB
MD5

79341b604b5a392afd2214d1154f25b2
SHA1

66604ff8cdac12451c31ab790fd3ca980f13a182
SHA256

e61755374bbb0eed7350da3bff07f3b77086165904025684b880305dafc4f007
SHA512

565709508c3c3a4b90ca238f32becfd39ec4407e24d54139b40fdd6890a330309fc92464a268c0cac858376f31904960ef3d0a052bdf5daca3d7abf60eb05759
SSDEEP

1536:HsfXh6ZpfFyoNCoGEvBlfXyoBncIe+E9WQKzuHkN1MAarP0nnRshPdBteJzmnvk:MfXh6ZpfFyhEp1XyoBncIeeSHqnG0nQg

Score

7^/10

adware discovery persistence stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3052	TopGuide.exe

Loads dropped DLL 8 IoCs

pid	Process
2992	regsvr32.exe
2392	79341b604b5a392afd2214d1154f25b2.exe
2392	79341b604b5a392afd2214d1154f25b2.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
2712	regsvr32.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2392-0-0x0000000000400000-0x000000000043F000-memory.dmp	upx
behavioral1/memory/2392-125-0x0000000000400000-0x000000000043F000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\TopGuide = "C:\\Program Files (x86)\\TopGuide\\TopGuide.exe"	TopGuide.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Installs/modifies Browser Helper Object 2 TTPs 3 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{1ED65C88-1259-484B-A9FA-6731E0D15743}	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{1ED65C88-1259-484B-A9FA-6731E0D15743}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{1ED65C88-1259-484B-A9FA-6731E0D15743}	regsvr32.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\TopGuide\TopGuide.exe	79341b604b5a392afd2214d1154f25b2.exe
File created	C:\Program Files (x86)\TopGuide\TopGuide.dll	79341b604b5a392afd2214d1154f25b2.exe
File created	C:\Program Files (x86)\TopGuide\adc.dll	79341b604b5a392afd2214d1154f25b2.exe
File created	C:\Program Files (x86)\TopGuide\uninstall.exe	79341b604b5a392afd2214d1154f25b2.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 6 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\SearchScopes\{D94DCC35-A105-4A97-A957-FB7D54BB3612}	79341b604b5a392afd2214d1154f25b2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\SearchScopes\{D94DCC35-A105-4A97-A957-FB7D54BB3612}\ = "Yahoo"	79341b604b5a392afd2214d1154f25b2.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\SearchScopes\{D94DCC35-A105-4A97-A957-FB7D54BB3612}\CodePage = "949"	79341b604b5a392afd2214d1154f25b2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\SearchScopes\{D94DCC35-A105-4A97-A957-FB7D54BB3612}\ = "¾ßÈÄ"	79341b604b5a392afd2214d1154f25b2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\SearchScopes\{D94DCC35-A105-4A97-A957-FB7D54BB3612}\URL = "http://info-way.kr/addPages/?id=TG60&k={searchTerms}"	79341b604b5a392afd2214d1154f25b2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\SearchScopes\DefaultScope = "{D94DCC35-A105-4A97-A957-FB7D54BB3612}"	79341b604b5a392afd2214d1154f25b2.exe

Modifies registry class 64 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1ED65C88-1259-484B-A9FA-6731E0D15743}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1ED65C88-1259-484B-A9FA-6731E0D15743}\ProgID\ = "TopGuide.TopGuideCtl.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1ED65C88-1259-484B-A9FA-6731E0D15743}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{7D1AFD44-BEA6-48BD-8872-21940D385C3B}\1.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4BA72FD4-FEEC-4DEE-9504-5C13E4C9866C}	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1ED65C88-1259-484B-A9FA-6731E0D15743}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1ED65C88-1259-484B-A9FA-6731E0D15743}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1ED65C88-1259-484B-A9FA-6731E0D15743}\VersionIndependentProgID	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1ED65C88-1259-484B-A9FA-6731E0D15743}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1ED65C88-1259-484B-A9FA-6731E0D15743}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1ED65C88-1259-484B-A9FA-6731E0D15743}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TopGuide.TopGuideCtl.1\ = "TopGuideCtl Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TopGuide.TopGuideCtl\CLSID\ = "{1ED65C88-1259-484B-A9FA-6731E0D15743}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TopGuide.TopGuideCtl\CurVer\ = "TopGuide.TopGuideCtl.1"	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1ED65C88-1259-484B-A9FA-6731E0D15743}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1ED65C88-1259-484B-A9FA-6731E0D15743}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{4BA72FD4-FEEC-4DEE-9504-5C13E4C9866C}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{4BA72FD4-FEEC-4DEE-9504-5C13E4C9866C}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TopGuide.TopGuideCtl.1\CLSID\ = "{1ED65C88-1259-484B-A9FA-6731E0D15743}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1ED65C88-1259-484B-A9FA-6731E0D15743}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{7D1AFD44-BEA6-48BD-8872-21940D385C3B}\1.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4BA72FD4-FEEC-4DEE-9504-5C13E4C9866C}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1ED65C88-1259-484B-A9FA-6731E0D15743}\VersionIndependentProgID\ = "TopGuide.TopGuideCtl"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TopGuide.TopGuideCtl.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1ED65C88-1259-484B-A9FA-6731E0D15743}\TypeLib\ = "{7D1AFD44-BEA6-48BD-8872-21940D385C3B}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{7D1AFD44-BEA6-48BD-8872-21940D385C3B}\1.0\ = "TopGuide 1.0 Type Library"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{7D1AFD44-BEA6-48BD-8872-21940D385C3B}\1.0\0\win32\ = "C:\\Program Files (x86)\\TopGuide\\TopGuide.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{4BA72FD4-FEEC-4DEE-9504-5C13E4C9866C}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TopGuide.TopGuideCtl.1\CLSID\ = "{1ED65C88-1259-484B-A9FA-6731E0D15743}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{7D1AFD44-BEA6-48BD-8872-21940D385C3B}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1ED65C88-1259-484B-A9FA-6731E0D15743}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1ED65C88-1259-484B-A9FA-6731E0D15743}\InprocServer32\ = "C:\\Program Files (x86)\\TopGuide\\TopGuide.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4BA72FD4-FEEC-4DEE-9504-5C13E4C9866C}\TypeLib\ = "{7D1AFD44-BEA6-48BD-8872-21940D385C3B}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4BA72FD4-FEEC-4DEE-9504-5C13E4C9866C}\TypeLib\Version = "1.0"	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1ED65C88-1259-484B-A9FA-6731E0D15743}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1ED65C88-1259-484B-A9FA-6731E0D15743}\InprocServer32\ = "C:\\Program Files (x86)\\TopGuide\\TopGuide.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TopGuide.TopGuideCtl\ = "TopGuideCtl Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1ED65C88-1259-484B-A9FA-6731E0D15743}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1ED65C88-1259-484B-A9FA-6731E0D15743}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1ED65C88-1259-484B-A9FA-6731E0D15743}\TypeLib\ = "{7D1AFD44-BEA6-48BD-8872-21940D385C3B}"	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1ED65C88-1259-484B-A9FA-6731E0D15743}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1ED65C88-1259-484B-A9FA-6731E0D15743}\VersionIndependentProgID\ = "TopGuide.TopGuideCtl"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{4BA72FD4-FEEC-4DEE-9504-5C13E4C9866C}\TypeLib\ = "{7D1AFD44-BEA6-48BD-8872-21940D385C3B}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4BA72FD4-FEEC-4DEE-9504-5C13E4C9866C}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{4BA72FD4-FEEC-4DEE-9504-5C13E4C9866C}\ = "ITopGuideCtl"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{4BA72FD4-FEEC-4DEE-9504-5C13E4C9866C}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TopGuide.TopGuideCtl\ = "TopGuideCtl Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TopGuide.TopGuideCtl	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1ED65C88-1259-484B-A9FA-6731E0D15743}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{7D1AFD44-BEA6-48BD-8872-21940D385C3B}\1.0\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{7D1AFD44-BEA6-48BD-8872-21940D385C3B}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{7D1AFD44-BEA6-48BD-8872-21940D385C3B}\1.0\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{4BA72FD4-FEEC-4DEE-9504-5C13E4C9866C}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4BA72FD4-FEEC-4DEE-9504-5C13E4C9866C}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TopGuide.TopGuideCtl.1\ = "TopGuideCtl Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TopGuide.TopGuideCtl\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1ED65C88-1259-484B-A9FA-6731E0D15743}\ProgID\ = "TopGuide.TopGuideCtl.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{7D1AFD44-BEA6-48BD-8872-21940D385C3B}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1ED65C88-1259-484B-A9FA-6731E0D15743}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TopGuide.TopGuideCtl\CurVer\ = "TopGuide.TopGuideCtl.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TopGuide.TopGuideCtl\CurVer	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1ED65C88-1259-484B-A9FA-6731E0D15743}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1ED65C88-1259-484B-A9FA-6731E0D15743}\ = "TopGuide"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{1ED65C88-1259-484B-A9FA-6731E0D15743}\ = "TopGuide"	regsvr32.exe

Modifies system certificate store 2 TTPs 6 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8	79341b604b5a392afd2214d1154f25b2.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8\Blob = 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	79341b604b5a392afd2214d1154f25b2.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13	79341b604b5a392afd2214d1154f25b2.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 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	79341b604b5a392afd2214d1154f25b2.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 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	79341b604b5a392afd2214d1154f25b2.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 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	79341b604b5a392afd2214d1154f25b2.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2392	79341b604b5a392afd2214d1154f25b2.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeRestorePrivilege	2392	79341b604b5a392afd2214d1154f25b2.exe
Token: SeBackupPrivilege	2392	79341b604b5a392afd2214d1154f25b2.exe

Suspicious use of SetWindowsHookEx 64 IoCs

pid	Process
2392	79341b604b5a392afd2214d1154f25b2.exe
2392	79341b604b5a392afd2214d1154f25b2.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe
3052	TopGuide.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2392 wrote to memory of 2992	2392	79341b604b5a392afd2214d1154f25b2.exe	28
PID 2392 wrote to memory of 2992	2392	79341b604b5a392afd2214d1154f25b2.exe	28
PID 2392 wrote to memory of 2992	2392	79341b604b5a392afd2214d1154f25b2.exe	28
PID 2392 wrote to memory of 2992	2392	79341b604b5a392afd2214d1154f25b2.exe	28
PID 2392 wrote to memory of 2992	2392	79341b604b5a392afd2214d1154f25b2.exe	28
PID 2392 wrote to memory of 2992	2392	79341b604b5a392afd2214d1154f25b2.exe	28
PID 2392 wrote to memory of 2992	2392	79341b604b5a392afd2214d1154f25b2.exe	28
PID 2392 wrote to memory of 3052	2392	79341b604b5a392afd2214d1154f25b2.exe	29
PID 2392 wrote to memory of 3052	2392	79341b604b5a392afd2214d1154f25b2.exe	29
PID 2392 wrote to memory of 3052	2392	79341b604b5a392afd2214d1154f25b2.exe	29
PID 2392 wrote to memory of 3052	2392	79341b604b5a392afd2214d1154f25b2.exe	29
PID 2392 wrote to memory of 3052	2392	79341b604b5a392afd2214d1154f25b2.exe	29
PID 2392 wrote to memory of 3052	2392	79341b604b5a392afd2214d1154f25b2.exe	29
PID 2392 wrote to memory of 3052	2392	79341b604b5a392afd2214d1154f25b2.exe	29
PID 3052 wrote to memory of 2712	3052	TopGuide.exe	30
PID 3052 wrote to memory of 2712	3052	TopGuide.exe	30
PID 3052 wrote to memory of 2712	3052	TopGuide.exe	30
PID 3052 wrote to memory of 2712	3052	TopGuide.exe	30
PID 3052 wrote to memory of 2712	3052	TopGuide.exe	30
PID 3052 wrote to memory of 2712	3052	TopGuide.exe	30
PID 3052 wrote to memory of 2712	3052	TopGuide.exe	30

C:\Users\Admin\AppData\Local\Temp\79341b604b5a392afd2214d1154f25b2.exe
"C:\Users\Admin\AppData\Local\Temp\79341b604b5a392afd2214d1154f25b2.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2392
- C:\Windows\SysWOW64\regsvr32.exe
  regsvr32 /s "C:\Program Files (x86)\TopGuide\TopGuide.dll"
  2⤵
  - Loads dropped DLL
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:2992
- C:\Program Files (x86)\TopGuide\TopGuide.exe
  "C:\Program Files (x86)\TopGuide\TopGuide.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3052
- - C:\Windows\SysWOW64\regsvr32.exe
    regsvr32 /s "C:\Program Files (x86)\TopGuide\TopGuide.dll"
    3⤵
    - Loads dropped DLL
    - Installs/modifies Browser Helper Object
    - Modifies registry class
    PID:2712

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Browser Extensions

T1176

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Subvert Trust Controls

T1553

Install Root Certificate

T1553.004

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\TopGuide\TopGuide.dll

Filesize
105KB

MD5
af91dc5eb2f1600a2acce03de4db8161

SHA1
3dc31ecc6ab4111d6f265c5a5700091449ae9df4

SHA256
0c1113cec21ed5a03fdd50f4602c362a161c55e4681788328624c296e49a70a5

SHA512
67f563095432601fddfc181c1fe1b020463c77148f59c8ea9bfade4b9e3392b1b1906b9603a10041d17c75f24265a5a9aa87ce6cda1d64ae356abba69519b3f2

Download Submit
C:\Program Files (x86)\TopGuide\adc.dll

Filesize
23KB

MD5
33d7115901c7382d911c5e5f28d95850

SHA1
e6b5b513626a1afd7285a1a3648912d54e819128

SHA256
b6af553defd463dd7d63b3c65b27d81a1ec5bb325cdaf57d3d42792e8d0dd361

SHA512
d5f697dad1c37b7b9d1ea30bd400f1900046fedc1c5ea4b9dea9646ea94f43ec81d3dad6f97f8ab2ab97c2804a939f72f903efae4b1e3e6f45b970bf5bf0eeed

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

Filesize
65KB

MD5
ac05d27423a85adc1622c714f2cb6184

SHA1
b0fe2b1abddb97837ea0195be70ab2ff14d43198

SHA256
c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

SHA512
6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\F0ACCF77CDCBFF39F6191887F6D2D357

Filesize
1KB

MD5
a266bb7dcc38a562631361bbf61dd11b

SHA1
3b1efd3a66ea28b16697394703a72ca340a05bd5

SHA256
df545bf919a2439c36983b54cdfc903dfa4f37d3996d8d84b4c31eec6f3c163e

SHA512
0da8ef4f8f6ed3d16d2bc8eb816b9e6e1345dfe2d91160196c47e6149a1d6aedaafadcefd66acdea7f72dcf0832770192ceac15b0c559c4ccc2c0e5581d5aefc

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
304B

MD5
2bb87029a0660054e9fb1261a400992f

SHA1
b20bcafcab754e2dc0f5aec9facfdcccb374bd78

SHA256
821bbeb3f7bebf66148cfbc56eccd347d52cf26799be098f51fcded21e277786

SHA512
c0de9618f400d99827b90bf0a432a013e0d0693cd78b0e3277446439b7363b9a9e73ef543804c6990aaddbd9b207899b595748d3da967f065328fb277fbcf666

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357

Filesize
242B

MD5
dd6288d64b6f282c8f290576ae948bcd

SHA1
d71ae529c44ae7d31d1c32a4f923ecd6a27406ce

SHA256
28cd67ab52bd7fb066ac42899e8f199ff3886cbf6b200d25a5b9c09e9a25da66

SHA512
7f5392e26962867cd70c24673e05b56a6c5486f978d3f016f499640527876f8ad0c211e81d5f983efbf86926728c6d184bdf931e05478bf0e66345bfdce59cb9

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarF71.tmp

Filesize
171KB

MD5
9c0c641c06238516f27941aa1166d427

SHA1
64cd549fb8cf014fcd9312aa7a5b023847b6c977

SHA256
4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

SHA512
936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

Download Submit
\Program Files (x86)\TopGuide\TopGuide.exe

Filesize
45KB

MD5
97a66539f4cdf6f5970d4f3ab62e7157

SHA1
32dca1cbc2a1729dae1fba9b66d7221ed8b0b6a2

SHA256
d8fd95ab37afabedcd5d6a76785897b70770644ed3ab8a2b274dfd6ed971ea12

SHA512
1857d4829bc758b49a4ba7c2e5bf16b7d07c6eebde561829c4a2f850f50399da5ba68026c5ae19332af023117b750abfa39d05b844c2131c4479cdac387b8abe

Download Submit
memory/2392-0-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/2392-1-0x00000000001C0000-0x00000000001FF000-memory.dmp

Filesize
252KB

Download
memory/2392-125-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download