hxxps://mainpagedir[.]xyz/invoice[.]xll

General

Target

https://mainpagedir.xyz/invoice.xll

Score

8^/10

persistence

Malware Config

Signatures

Downloads MZ/PE file
Sets service image path in registry 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112

Drops file in Windows directory 6 IoCs

Processes:

svchost.exe

description	ioc	process
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\DataStore.jfm	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\ReportingEvents.log	svchost.exe
File opened for modification	C:\Windows\WindowsUpdate.log	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\Logs\edb.chk	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\Logs\edb.log	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\DataStore.edb	svchost.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE

Modifies Internet Explorer settings 1 TTPs 28 IoCs

adware spyware

Modify Registry

T1112

Processes:

iexplore.exeIEXPLORE.EXE

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30939232"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1219899776"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30939232"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1298650391"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30939232"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "350590433"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{72106FCD-8453-11EC-B9A4-F24C39D5F1CE} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1219899776"	iexplore.exe

Modifies data under HKEY_USERS 41 IoCs

Processes:

WaaSMedicAgent.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	WaaSMedicAgent.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

3456 EXCEL.EXE

pid	process
3456	EXCEL.EXE

Suspicious use of AdjustPrivilegeToken 7 IoCs

Processes:

svchost.exeEXCEL.EXE

description	pid	process
Token: SeShutdownPrivilege	944	svchost.exe
Token: SeCreatePagefilePrivilege	944	svchost.exe
Token: SeShutdownPrivilege	944	svchost.exe
Token: SeCreatePagefilePrivilege	944	svchost.exe
Token: SeShutdownPrivilege	944	svchost.exe
Token: SeCreatePagefilePrivilege	944	svchost.exe
Token: SeAuditPrivilege	3456	EXCEL.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

iexplore.exe

pid process

3516 iexplore.exe

Suspicious use of SetWindowsHookEx 11 IoCs

Processes:

iexplore.exeIEXPLORE.EXEEXCEL.EXE

pid	process
3516	iexplore.exe
3516	iexplore.exe
4032	IEXPLORE.EXE
4032	IEXPLORE.EXE
4032	IEXPLORE.EXE
4032	IEXPLORE.EXE
3456	EXCEL.EXE
3456	EXCEL.EXE
3456	EXCEL.EXE
3456	EXCEL.EXE
3456	EXCEL.EXE

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

iexplore.exe

description	pid	process	target process
PID 3516 wrote to memory of 4032	3516	iexplore.exe	IEXPLORE.EXE
PID 3516 wrote to memory of 4032	3516	iexplore.exe	IEXPLORE.EXE
PID 3516 wrote to memory of 4032	3516	iexplore.exe	IEXPLORE.EXE

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" https://mainpagedir.xyz/invoice.xll
1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3516

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3516 CREDAT:17410 /prefetch:2
2⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:4032

C:\Windows\System32\WaaSMedicAgent.exe
C:\Windows\System32\WaaSMedicAgent.exe 49bd8ead47b544cbf9c44a3618cbf6bb qR3WV0VRTkOYWAWJaXJdow.0.1.0.0.0
1⤵
- Modifies data under HKEY_USERS
PID:1180

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:944

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" -Embedding
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:3456

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/944-145-0x000001BDF7850000-0x000001BDF7854000-memory.dmp

Filesize
16KB

Download
memory/3456-146-0x00007FFBF1030000-0x00007FFBF1040000-memory.dmp

Filesize
64KB

Download
memory/3456-147-0x00007FFBF1030000-0x00007FFBF1040000-memory.dmp

Filesize
64KB

Download
memory/3456-148-0x00007FFBF1030000-0x00007FFBF1040000-memory.dmp

Filesize
64KB

Download
memory/3456-149-0x00007FFBF1030000-0x00007FFBF1040000-memory.dmp

Filesize
64KB

Download
memory/3456-150-0x00007FFBF1030000-0x00007FFBF1040000-memory.dmp

Filesize
64KB

Download
memory/3456-151-0x00007FFBEEC90000-0x00007FFBEECA0000-memory.dmp

Filesize
64KB

Download
memory/3456-152-0x00007FFBEEC90000-0x00007FFBEECA0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads