hxxps://u31364105[.]ct[.]sendgrid[.]net/ls/click?upn=jGY5ItApGR3dTrBWedLuYO3pP3e-2FgcwNe28K2MPvGaTs880OILML8nL-2FTXMmM2C0i9YRq0zSHvkHcsZVFOBVbMaeHDHdR14uwKkaXMvFhfvT-2F6Kyt36Mqm-2FhA-2BSaUu-2F-2F995ow7W9llpi8n6w2yID1SZNfCgfY1GED5b0DSyx9df1nSz7TZX5Oc7tvIxIicq4C1

Analysis

max time kernel
73s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
09/01/2023, 14:02

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General

Target

https://u31364105.ct.sendgrid.net/ls/click?upn=jGY5ItApGR3dTrBWedLuYO3pP3e-2FgcwNe28K2MPvGaTs880OILML8nL-2FTXMmM2C0i9YRq0zSHvkHcsZVFOBVbMaeHDHdR14uwKkaXMvFhfvT-2F6Kyt36Mqm-2FhA-2BSaUu-2F-2F995ow7W9llpi8n6w2yID1SZNfCgfY1GED5b0DSyx9df1nSz7TZX5Oc7tvIxIicq4C1

Score

1^/10

Malware Config

Signatures

Modifies Internet Explorer settings 1 TTPs 35 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2824139330"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2817418860"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = e018a5a93b24d901	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000eef4ddb70fa9964f8bf69d510f57c1eb00000000020000000000106600000001000020000000b6fc6aba798b0397ced908126465d7ed6f939b357b0ae235aea1bd62adeae298000000000e800000000200002000000046774fb99dc92307d95460c66c01e1b8b163d22596b68b719f2501c5e5e1925a20000000b982aed3638b3f0db97b65c72120903fea255e77f0d2e5e323854aa673d4653b40000000af9107b857f009428b1b81a2170a115e1a33440ffd6f0c814b2740c5e3c00e7339930f777704022b7bd08e9d64e97c636b92a5f216ad03a4cfd33b0bc90bd2f5	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31007803"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{D34E1075-902E-11ED-BF5F-6EDF9685419A} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31007803"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31007803"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000eef4ddb70fa9964f8bf69d510f57c1eb0000000002000000000010660000000100002000000084a484d9f75b4448609884a93e8f05ce5e3df2f2ea4dddbc96a2b0fab5f56144000000000e80000000020000200000006983484fc69c29c0ec3b5024ebef74966b1393281a9ba66842da744d3e01847320000000ab02d9d45555785485c38968a901a0481039c0526ad830761b876bfdaaabf19840000000f4a3124398919e21ab6e323b5ec72dd6a1dc5dc476ed3960423ee4631b6ced892bc63c2bc632922cdaccc2007b77ae065dee8bfc3c577a59f1ae553fcaf625b6	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "380041605"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2817418860"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = c08eaea93b24d901	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4668	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4668	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4668	iexplore.exe
4668	iexplore.exe
3364	IEXPLORE.EXE
3364	IEXPLORE.EXE
3364	IEXPLORE.EXE
3364	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4668 wrote to memory of 3364	4668	iexplore.exe	79
PID 4668 wrote to memory of 3364	4668	iexplore.exe	79
PID 4668 wrote to memory of 3364	4668	iexplore.exe	79

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" https://u31364105.ct.sendgrid.net/ls/click?upn=jGY5ItApGR3dTrBWedLuYO3pP3e-2FgcwNe28K2MPvGaTs880OILML8nL-2FTXMmM2C0i9YRq0zSHvkHcsZVFOBVbMaeHDHdR14uwKkaXMvFhfvT-2F6Kyt36Mqm-2FhA-2BSaUu-2F-2F995ow7W9llpi8n6w2yID1SZNfCgfY1GED5b0DSyx9df1nSz7TZX5Oc7tvIxIicq4C1
1⤵
- Modifies Internet Explorer settings
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4668
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4668 CREDAT:17410 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:3364

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
471B

MD5
bdf470191c4a6769b83735c86bc6d2ca

SHA1
dbea8d53edd104d2db101927fdbd8814f93c4dce

SHA256
898b176b737906173625a8fd4074c4cbff5fb0f3c21e1fd3dcc1cb5be6977b8d

SHA512
0e7590bc87ad090bfca8707fb1f4e69001b9d923983f64972499f4ae62281310d5cf72f7e8dd3d8c2e78ec2d7310a73c1d4ddff4b29eff0439161b7c8f56099d

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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
404B

MD5
41b42d67c0fb5d754ac8f9978e044c2e

SHA1
1d05413f24a73d8f648da15896ef4383e9797591

SHA256
80258aadef893e8fda7c377d6e178df527eb4daee5dd4b293079abbb5629df69

SHA512
3ca5e2e13ff2cc45afe8ddf40d166613d08c3b775f059c485b2df4e837617d5dd783f18d572a2ab744a5efe0bdb994430e09551b7463ebd9f0aa0e04e8287c4a

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