hxxps://download[.]nutanix[.]com/Foundation/5[.]1[.]1/foundation-5[.]1[.]1-windows[.]msi?Expires=1647317017618&Key-Pair-Id=APKAJTTNCWPEI42QKMSA&Signature=G-MEsjjAR8ynl~LpkXPKS3R0s4kj0q1Owu7DO~Jq2QashOc5n1M0pP883g8mGTNkRA7uIbpCaom1RKSYk0R4xlkD-Pm6MFdjnZbXwQskCcynegYCq7SQV3TYC7~jXRqYbwpQhY4Uox7wUC2pA6zRPFnrCQoyXlnp0Jqyn8M-lNpsdSp2bdTMKDCn4l03LH5nsiZdBmXesNx6bKgmDhZRbxpYWbo56i-8VvSgmkk0DaY21GAs2~oujB~41gFVe-~rfuu4bDVWTqrGNGD--Uz~oLp8A7k4sLm3QM8h0iSHbvclBTmTRdQhc71Wjv3sm8HXxrSeuObaPzmR06wpEjJoFQ__

General

Target

https://download.nutanix.com/Foundation/5.1.1/foundation-5.1.1-windows.msi?Expires=1647317017618&Key-Pair-Id=APKAJTTNCWPEI42QKMSA&Signature=G-MEsjjAR8ynl~LpkXPKS3R0s4kj0q1Owu7DO~Jq2QashOc5n1M0pP883g8mGTNkRA7uIbpCaom1RKSYk0R4xlkD-Pm6MFdjnZbXwQskCcynegYCq7SQV3TYC7~jXRqYbwpQhY4Uox7wUC2pA6zRPFnrCQoyXlnp0Jqyn8M-lNpsdSp2bdTMKDCn4l03LH5nsiZdBmXesNx6bKgmDhZRbxpYWbo56i-8VvSgmkk0DaY21GAs2~oujB~41gFVe-~rfuu4bDVWTqrGNGD--Uz~oLp8A7k4sLm3QM8h0iSHbvclBTmTRdQhc71Wjv3sm8HXxrSeuObaPzmR06wpEjJoFQ__

Score

9^/10

link pdf

Malware Config

Signatures

Detect jar appended to MSI 1 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\GGB3KH7Z\foundation-5.1.1-windows.msi.pt99xc9.partial	jar_in_msi

Patched UPX-packed file 1 IoCs

Sample is packed with UPX but required header fields are zeroed out to prevent unpacking with the default UPX tool.

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\GGB3KH7Z\foundation-5.1.1-windows.msi.pt99xc9.partial	patched_upx

Enumerates connected drives 3 TTPs 24 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

msiexec.exe

description	ioc	process
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\F:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\E:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe

HTTP links in PDF interactive object 1 IoCs

Detects HTTP links in interactive objects within PDF files.

pdf link

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\GGB3KH7Z\foundation-5.1.1-windows.msi.pt99xc9.partial	pdf_with_link_action

Modifies Internet Explorer Phishing Filter 1 TTPs 2 IoCs

Modify Registry

T1112

Processes:

iexplore.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Internet Explorer\PhishingFilter	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Internet Explorer\PhishingFilter\ClientSupported_MigrationTime = d9be65821835d801	iexplore.exe

Modifies Internet Explorer settings 1 TTPs 32 IoCs

adware spyware

Modify Registry

T1112

Processes:

iexplore.exeIEXPLORE.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Internet Explorer\RepId	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30947573"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3187211383"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3121742664"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30947573"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Internet Explorer\MINIE	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30947573"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "354173053"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3121742664"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{E2F9D5A4-A4E8-11EC-B9E2-D64E15259B99} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Internet Explorer\RepId\PublicId = "{784E86CA-7332-4A43-8AE3-6B08ABE26993}"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Internet Explorer\MINIE\TabBandWidth = "500"	iexplore.exe

Modifies registry class 1 IoCs

Processes:

iexplore.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000_Classes\Local Settings iexplore.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

msiexec.exe

description pid process

Token: SeShutdownPrivilege 3104 msiexec.exe
Token: SeIncreaseQuotaPrivilege 3104 msiexec.exe
Suspicious use of FindShellTrayWindow 3 IoCs

Processes:

iexplore.exemsiexec.exe

pid process

1800 iexplore.exe
1800 iexplore.exe
3104 msiexec.exe
Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

iexplore.exeIEXPLORE.EXE

pid process

1800 iexplore.exe
1800 iexplore.exe
3088 IEXPLORE.EXE
3088 IEXPLORE.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000_Classes\Local Settings	iexplore.exe

description	pid	process
Token: SeShutdownPrivilege	3104	msiexec.exe
Token: SeIncreaseQuotaPrivilege	3104	msiexec.exe

pid	process
1800	iexplore.exe
1800	iexplore.exe
3104	msiexec.exe

pid	process
1800	iexplore.exe
1800	iexplore.exe
3088	IEXPLORE.EXE
3088	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

iexplore.exe

description	pid	process	target process
PID 1800 wrote to memory of 3088	1800	iexplore.exe	IEXPLORE.EXE
PID 1800 wrote to memory of 3088	1800	iexplore.exe	IEXPLORE.EXE
PID 1800 wrote to memory of 3088	1800	iexplore.exe	IEXPLORE.EXE
PID 1800 wrote to memory of 3104	1800	iexplore.exe	msiexec.exe
PID 1800 wrote to memory of 3104	1800	iexplore.exe	msiexec.exe

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" https://download.nutanix.com/Foundation/5.1.1/foundation-5.1.1-windows.msi?Expires=1647317017618&Key-Pair-Id=APKAJTTNCWPEI42QKMSA&Signature=G-MEsjjAR8ynl~LpkXPKS3R0s4kj0q1Owu7DO~Jq2QashOc5n1M0pP883g8mGTNkRA7uIbpCaom1RKSYk0R4xlkD-Pm6MFdjnZbXwQskCcynegYCq7SQV3TYC7~jXRqYbwpQhY4Uox7wUC2pA6zRPFnrCQoyXlnp0Jqyn8M-lNpsdSp2bdTMKDCn4l03LH5nsiZdBmXesNx6bKgmDhZRbxpYWbo56i-8VvSgmkk0DaY21GAs2~oujB~41gFVe-~rfuu4bDVWTqrGNGD--Uz~oLp8A7k4sLm3QM8h0iSHbvclBTmTRdQhc71Wjv3sm8HXxrSeuObaPzmR06wpEjJoFQ__
1⤵
- Modifies Internet Explorer Phishing Filter
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1800

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1800 CREDAT:17410 /prefetch:2
2⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:3088

C:\Windows\System32\msiexec.exe
"C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\GGB3KH7Z\foundation-5.1.1-windows.msi"
2⤵
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:3104

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

1

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\GGB3KH7Z\foundation-5.1.1-windows.msi.pt99xc9.partial
MD5
a8041319eaa4cfbc83bb439e5e058f1f

SHA1
35f1b3a4a38d07ca213488615e04c8abfff3e3d4

SHA256
dc1b0eac07c4e5ebaacbf999d98e7b30d3dfe7f8efbe2295efbff410118e8564

SHA512
d84c56277e5218f3a375c9d9bd3d83c8ee8e8489de09fcfef39180b20ad1cc15b9f314df232218976346dd36e0af8f68d59d9fecd70ce0812b6d1d90e1d1d2ec

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads