hxxp://chalubinski[.]edu[.]pl

Analysis

max time kernel
135s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
01/06/2023, 19:28

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General

Target

http://chalubinski.edu.pl

Score

5^/10

Malware Config

Signatures

Drops file in System32 directory 11 IoCs

description	ioc	Process
File created	C:\Windows\system32\config\systemprofile\AppData\Local\DataSharing\Storage\DSStmp.log	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\DataSharing\Storage\DSSres00001.jrs	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\DataSharing\Storage\DSS.chk	svchost.exe
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\Local\DataSharing\Storage\DSS.chk	svchost.exe
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\Local\DataSharing\Storage\DSS.log	svchost.exe
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\Local\DataSharing\Storage\DSS.jtx	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\DataSharing\Storage\DSSres00002.jrs	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\DataSharing\Storage\DSTokenDB2.jfm	svchost.exe
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\Local\DataSharing\Storage\DSTokenDB2.dat	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\DataSharing\Storage\DSTokenDB2.dat	svchost.exe
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\Local\DataSharing\Storage\DSS.jcp	svchost.exe

Modifies Internet Explorer settings 1 TTPs 50 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31036624"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 40894d12d094d901	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\Total\ = "0"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\IESettingSync\SlowSettingTypesChanged = "2"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\DOMStorage\Total	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\chalubinski.edu.pl\Total = "0"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\IESettingSync	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31036624"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "260197920"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\chalubinski.edu.pl\NumberOfSubdomains = "1"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb010000003fa0f8c1167bdf4ea091028268bc6bfe00000000020000000000106600000001000020000000582fc770ec59d9bd93045c91f5a769aaa72e44739a33e0a41e90dfd0ffd6993f000000000e8000000002000020000000b15425980f0d38f574dfcf2c2b70a65e897fd7299da83f3201b5c4e1c57d2f27200000007f36eccabcee0dcfb972a6b9816cc1bc49371caf532eb4734d238d1685444d1640000000bb0a45091bd9b5cd9934ccb90e27a39c581de591e4105267638d645bf74726b559fb1245e71a1a6cb8234c168a58cfd5ae1adb3d8ff21567cab14393db5ae7bc	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "392419874"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{3A055BE4-00C3-11EE-ABF7-5E730FDCBF57} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\Total\ = "18"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\chalubinski.edu.pl\Total = "18"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "248633458"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\chalubinski.edu.pl\ = "0"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "248633458"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb010000003fa0f8c1167bdf4ea091028268bc6bfe0000000002000000000010660000000100002000000083c5745eb58dca25569ba8777fa986a3a09f3fdfece681e9c72d3d9c472a27d5000000000e800000000200002000000044df589104bf824c92c7d879e79c89916f67e0941fd6c8530089059b7ad213e720000000f93278ef8401412ab0e5be4a976933ac985c02fc70e0664626cfd568db02d15640000000bca0ea9bbc2f1a128d9718b93b5fd5564367384abad5c50353613fde75585085f83497b686af5e64972253788120ec12f54619e189000e30d33423c03cdbb272	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 00e66212d094d901	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31036624"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\DOMStorage\chalubinski.edu.pl	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\chalubinski.edu.pl	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\chalubinski.edu.pl\ = "18"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\Deployment\Package\*\S-1-5-21-1529757233-3489015626-3409890339-1000\{A71C553F-6A65-4EBA-A3EA-F1D7BE2D28B7}	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000_Classes\Local Settings	mspaint.exe
Key created	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000_Classes\Local Settings	mspaint.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2400	mspaint.exe
2400	mspaint.exe
1820	mspaint.exe
1820	mspaint.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3524	iexplore.exe

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
3524	iexplore.exe
3524	iexplore.exe
4624	IEXPLORE.EXE
4624	IEXPLORE.EXE
4624	IEXPLORE.EXE
4624	IEXPLORE.EXE
2400	mspaint.exe
984	OpenWith.exe
1820	mspaint.exe
3720	OpenWith.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3524 wrote to memory of 4624	3524	iexplore.exe	86
PID 3524 wrote to memory of 4624	3524	iexplore.exe	86
PID 3524 wrote to memory of 4624	3524	iexplore.exe	86

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" http://chalubinski.edu.pl
1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3524
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3524 CREDAT:17410 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Modifies registry class
  - Suspicious use of SetWindowsHookEx
  PID:4624

C:\Windows\system32\mspaint.exe
"C:\Windows\system32\mspaint.exe" "C:\Users\Admin\Desktop\ConnectSend.png" /ForceBootstrapPaint3D
1⤵
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:2400

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s DsSvc
1⤵
- Drops file in System32 directory
PID:1008

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Suspicious use of SetWindowsHookEx
PID:984

C:\Windows\system32\mspaint.exe
"C:\Windows\system32\mspaint.exe" "C:\Users\Admin\Desktop\ConnectSend.png" /ForceBootstrapPaint3D
1⤵
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:1820

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Suspicious use of SetWindowsHookEx
PID:3720

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
a244894fbc1ca90d08cff32fb6cd308d

SHA1
59e3c026c3d1bcd549f697b5dd4a35e298c9d2be

SHA256
a6b607b594b789a6ab1671c98fe9447509b82a85cfdcf4693b253616568e32ac

SHA512
b62e636d9d0e9e67ff310f3370ab1ca66abf93efef89a9a0d6d79e4526d8904a49b01f39ce64b76d3db03ac7080f62a84caabfbfc7bbf0244e2601457ca7e09e

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

Filesize
404B

MD5
a37da126c81ef34a1d449f3fe6cbfab9

SHA1
6541dc109bab6b01df50835d5254d3cd5b528e69

SHA256
8677e66466f85c67b4f36e88bfcf7ebfbb9905aa2b0fa01c342cf3592adeabd3

SHA512
3004e027b421f62dfddc1881a3702c34fd33656fb4d11d759e4ff2ef1a936ec7777204fb8a0291e8225a633a5ef4a2f21b98afaa880fd1cd0e43e82b48bc51bb

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\imagestore\dcpq11e\imagestore.dat

Filesize
1KB

MD5
0eea3875b5349f24c942d49ffda42589

SHA1
a9ae21e538ceafe82f29a445847e2c1b6f32a2cc

SHA256
f6e2235bd40c73390ed1bef0eb81116d67c32bc0de276c3c20026002e550530c

SHA512
5ba94d03fc9a13573346b417435892e8f2edbbe485fb14cbecd7f0e8e7e8d22b418277e8648a5413a9719181d75fae2a7b1ae1e049988c77bd568c5b481f52fc

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\4HAJQ22Y\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\LZ0AI98S\favicon[1].ico

Filesize
1KB

MD5
95b95a890f974b88b10f675aaf08c55c

SHA1
189e436b8ec5d4b9c3282bb771853f9ac8f995cb

SHA256
dc9a4a56c2664341732638d05b6b1376497f949f62d0f184b646299e5657960b

SHA512
7393841b0a8ea4284fbc70e41bf2322b27a78710f3a763b4ea512503576e72362196334b86ab87d42afcbf4cf5854a4917788c156d89fb1df0d7399fdb41e38a

Download Submit
memory/1008-394-0x000001700BA50000-0x000001700BA51000-memory.dmp

Filesize
4KB

Download
memory/1008-392-0x000001700BA50000-0x000001700BA51000-memory.dmp

Filesize
4KB

Download
memory/1008-395-0x000001700BAE0000-0x000001700BAE1000-memory.dmp

Filesize
4KB

Download
memory/1008-396-0x000001700BAF0000-0x000001700BAF1000-memory.dmp

Filesize
4KB

Download
memory/1008-397-0x000001700BAF0000-0x000001700BAF1000-memory.dmp

Filesize
4KB

Download
memory/1008-398-0x000001700BAF0000-0x000001700BAF1000-memory.dmp

Filesize
4KB

Download
memory/1008-390-0x000001700B9D0000-0x000001700B9D1000-memory.dmp

Filesize
4KB

Download
memory/1008-383-0x0000017002D90000-0x0000017002DA0000-memory.dmp

Filesize
64KB

Download
memory/1008-379-0x0000017002D40000-0x0000017002D50000-memory.dmp

Filesize
64KB

Download