hxxps://ea[.]pstmrk[.]it/open?m=v3_1[.]AAAAAAAAAAAAAAAAAAAAAA[.]U4hjy29GctDF-IbULPz6RAfMDvQqNLuDOV-olfG9mzU37b18UwZBJYMj4NaJLG9vK5TfyZmA8EFKl2xKg1JdCGit5OCwo5PxGfvr-Oh-sxIjWRvexrJT2g3Bk66aOGRTmHirEzYbiphIn2ijwAOCYOLi7u21wI9DWVFYuBgjJGYYW_xEzF3XNIhNe77mgLEPiWfRqKpMCmkXk4pPjRHH8dwIcygMvfltWU5dX3cxsoWX3s4FWZQ5baObBa2Aax9wyfxUR16tjUaDIrcItJpPsk2BEqAmdNmpwxrmnqUk2UtvxXP3rfjIh_gU43IK0Ymm-yNOeRLmYLVTsPPssXFFKIXwVQ3gKyYZc2xsWAqO7HIcelnbY4-b5HpZyPlPrcb44nKyXgymjd3EmWNHJAWRe1nwPcAk6S7b6_EcOe_K0vKcLQnqqlZ3qd2JAohYgNb6Shi6k-9hImkJJL1C3DiRccmmVGCRVhak_Ftamj-BnG8

Analysis

max time kernel
72s
max time network
201s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
24/04/2023, 02:24

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General

Target

https://ea.pstmrk.it/open?m=v3_1.AAAAAAAAAAAAAAAAAAAAAA.U4hjy29GctDF-IbULPz6RAfMDvQqNLuDOV-olfG9mzU37b18UwZBJYMj4NaJLG9vK5TfyZmA8EFKl2xKg1JdCGit5OCwo5PxGfvr-Oh-sxIjWRvexrJT2g3Bk66aOGRTmHirEzYbiphIn2ijwAOCYOLi7u21wI9DWVFYuBgjJGYYW_xEzF3XNIhNe77mgLEPiWfRqKpMCmkXk4pPjRHH8dwIcygMvfltWU5dX3cxsoWX3s4FWZQ5baObBa2Aax9wyfxUR16tjUaDIrcItJpPsk2BEqAmdNmpwxrmnqUk2UtvxXP3rfjIh_gU43IK0Ymm-yNOeRLmYLVTsPPssXFFKIXwVQ3gKyYZc2xsWAqO7HIcelnbY4-b5HpZyPlPrcb44nKyXgymjd3EmWNHJAWRe1nwPcAk6S7b6_EcOe_K0vKcLQnqqlZ3qd2JAohYgNb6Shi6k-9hImkJJL1C3DiRccmmVGCRVhak_Ftamj-BnG8

Score

1^/10

Malware Config

Signatures

Modifies Internet Explorer settings 1 TTPs 39 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 60cde0c26476d901	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3225765323"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb010000000eb827cf93ddd146af8365c0e3ca130200000000020000000000106600000001000020000000e7a2c397a550392b440570f8d2008305639a4f1190ee3fda32070706a230a43b000000000e8000000002000020000000ab94bcfb0255800d25a4c3d8192f37571f015ef896cd32254df4af8a8ce40e6920000000431e02b5c1a5c7b0b68ffa5b3dcdb8085c7a96e0eb73db54a96084f7fd01ef5f400000008e746605746f8e1dac5d1265073dfbab8e64657806454a26246525e43e642b7dcefa0ce7d36ff7ff4550e76de02be87b26b2d560aef6dc3e4da2d33a9eb6d549	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31028836"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\IESettingSync\SlowSettingTypesChanged = "2"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{E81B93A7-E257-11ED-BDA1-5A0CB913B9C1} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb010000000eb827cf93ddd146af8365c0e3ca130200000000020000000000106600000001000020000000d78be44aadc5a5bec6638707ed13f7cec902f56d1efcde4fa2bb8f635b8a4c63000000000e8000000002000020000000e361ab9187fd8d04b251a184790484b589ea24da6cdecdf6855312c6d71dcfeb20000000d06d9e3a3695557f294e6c09535b8068320a6bc187d0f6a87496edcb32ebb78540000000537f42ed4f601c8e42181d59d73ab88c5a81f209373446740b39aba10f14a6091ddca7399f3862af2c22d740327d8f886b73abb4720eade5d7742a7d89a3add8	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3174982973"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31028836"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 902bd0c26476d901	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3174982973"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31028836"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Internet Explorer\IESettingSync	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "389075250"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3404	iexplore.exe

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
3404	iexplore.exe
3404	iexplore.exe
4596	IEXPLORE.EXE
4596	IEXPLORE.EXE
4596	IEXPLORE.EXE
4596	IEXPLORE.EXE
3404	iexplore.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3404 wrote to memory of 4596	3404	iexplore.exe	83
PID 3404 wrote to memory of 4596	3404	iexplore.exe	83
PID 3404 wrote to memory of 4596	3404	iexplore.exe	83

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" https://ea.pstmrk.it/open?m=v3_1.AAAAAAAAAAAAAAAAAAAAAA.U4hjy29GctDF-IbULPz6RAfMDvQqNLuDOV-olfG9mzU37b18UwZBJYMj4NaJLG9vK5TfyZmA8EFKl2xKg1JdCGit5OCwo5PxGfvr-Oh-sxIjWRvexrJT2g3Bk66aOGRTmHirEzYbiphIn2ijwAOCYOLi7u21wI9DWVFYuBgjJGYYW_xEzF3XNIhNe77mgLEPiWfRqKpMCmkXk4pPjRHH8dwIcygMvfltWU5dX3cxsoWX3s4FWZQ5baObBa2Aax9wyfxUR16tjUaDIrcItJpPsk2BEqAmdNmpwxrmnqUk2UtvxXP3rfjIh_gU43IK0Ymm-yNOeRLmYLVTsPPssXFFKIXwVQ3gKyYZc2xsWAqO7HIcelnbY4-b5HpZyPlPrcb44nKyXgymjd3EmWNHJAWRe1nwPcAk6S7b6_EcOe_K0vKcLQnqqlZ3qd2JAohYgNb6Shi6k-9hImkJJL1C3DiRccmmVGCRVhak_Ftamj-BnG8
1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3404
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3404 CREDAT:17410 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:4596

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
173a79e136330a70b71832e4563d1b42

SHA1
28b14a7bbe8a20fb082b36a9d2651e13fd1d14fe

SHA256
b3a892deb1113445e59cd3ef9ac10f02a8792652c30a2effe4cdc060bd71a03e

SHA512
b50efc28fb0d1731a9e337b531660c20c0d4046f2ed81e8085f5a9ca1c44b9960577fa558d729b48c8d3328f2599d1e27a19c4e59ed97125deee6a638fa2e880

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

Filesize
404B

MD5
bb1ef5ba843d13e1a9dfa2e4e2dccbc5

SHA1
e3f1ea41385da62bda964772578967b64859fe2e

SHA256
b01c6c4e080d115adaadfe65ece31b6accd8e91152871d208d3478267ff30e74

SHA512
a5eabdaad0fc330e8075c7abfdbef0ae6bf9464fbdd67eacc903df069c5683b4d97d19387a767047ff82a2bc2c67440ead55600a4d4a2b9125b07c3f64e5002e

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\imagestore\q7s3h6i\imagestore.dat

Filesize
4KB

MD5
42ab8889bb190da76e5ebffd7c0f41ae

SHA1
c75be007eb092af6e25e8ad6a47e6d65a4f5bfb4

SHA256
25dbc3eeee8f05af0b331dd29197a658b441dfd5e6c9e9663bbe736ab1096430

SHA512
487dcfcd3ffbd0d7c612801d3f2349942f8bfbb940c2bca53021dce20e16c2d7920306429bf1f4c0b8045ab240c70afa53b5e374bcb4686df56ddf2d0f945964

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C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\K941J8ND\favicon[1].ico

Filesize
4KB

MD5
226a3b111a56268b07978107172649c9

SHA1
63130f353eb4e3adafec644fc105b1c5b0704bca

SHA256
2aaf4cae9bde3fc7fc0f2f9728dbbf6805b6fff38c6464a9a62f575ebb466cfc

SHA512
ebf65a20dfefd0145e5b9138b98082a439738c487b5c40b77f31f86ee730c1084503fb2535dff9cbe8005dd58a4695a094bb491d892c25a123bf3cbac4f72443

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\Y624AVVJ\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit