f08130ff8f580e3bf902eec1400af45854341bbb5ccf00f669092efc76a076fa

Analysis

max time kernel
139s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
17/07/2023, 03:13

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General

Target

classroom.html
Size

517B
MD5

ff28760867f416f792f570022ac87974
SHA1

01b2dd0349eb737ea3d43be36e0f610ddb7eb70a
SHA256

cc055d1486aa3f323ee3a22ee16e343619b98e538b5cf7ff960bc53e0deb72e0
SHA512

829f8cd106f8532cc7c5a477d68c9aeb440af3937ced4d82d49289fce786f64233dbff9d722f8d47d5b8eb0714e49832f53053041ec3e27345ff1ac345fcd0c3

Score

1^/10

Malware Config

Signatures

Modifies Internet Explorer settings 1 TTPs 41 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000b4885326af1dd94bb4dd17ee586870300000000002000000000010660000000100002000000075e5d6303e480f9a991865dc71ea322fd5d9c8731b2d56f9831855bfd7d28c26000000000e80000000020000200000000276e2852ad65e2060bc8c447a847e32dce46b6638437d1bfd5fe23377b2b92f20000000c072d1715b9dddde058cb9e125ed6710d8f7271ee054434846b20dcc1ed14401400000008606e4ec52e5596acb6b7166ba8117d148c99340936935387d31425a2d1acf9d0cf3dba6bb993a29e006c04f01780de4b88b52fb639a4ef293b38b71184da2d8	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\Software\Microsoft\Internet Explorer\IESettingSync	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3980572388"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "4020413028"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31045724"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000b4885326af1dd94bb4dd17ee586870300000000002000000000010660000000100002000000004a0c8688606ac0f50c905d0cd0c1450fc2f99f03883fa1f5749f18d2b890012000000000e80000000020000200000001804d8242579dc15c015a4a4aa58836820a08d0c861b32b4f03d70252589f69420000000832ff27550abc00284a9ef70676143e7aff2c0160e9a18cff438abd9584d74e340000000b2f445f0df384762bfbc53b5a2a5a4ef9eeebd72b51fae5e35bc1058c83f59b61f89f64c61197ef07992454717c4bad1ed5248bfc2eed79c85221f2e8eb10559	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 00f30cf15cb8d901	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 4025f5f05cb8d901	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31045724"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{18874411-2450-11EE-84C0-6E0CE9A2C9CA} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3980572388"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\SOFTWARE\Microsoft\Internet Explorer\IESettingSync\SlowSettingTypesChanged = "2"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31045724"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "396328671"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\""	IEXPLORE.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4812	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4812	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4812	iexplore.exe
4812	iexplore.exe
3960	IEXPLORE.EXE
3960	IEXPLORE.EXE
3960	IEXPLORE.EXE
3960	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4812 wrote to memory of 3960	4812	iexplore.exe	84
PID 4812 wrote to memory of 3960	4812	iexplore.exe	84
PID 4812 wrote to memory of 3960	4812	iexplore.exe	84

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" C:\Users\Admin\AppData\Local\Temp\classroom.html
1⤵
- Modifies Internet Explorer settings
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4812
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4812 CREDAT:17410 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:3960

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\Local\Microsoft\Windows\INetCache\IE\HW3GGUK8\cb=gapi[1].js

Filesize
63KB

MD5
8448c1eb40e855ff3b5de9fd4513d933

SHA1
fc2bb63a7d81e649a78408f942d1b5367485e349

SHA256
63aaa2777db39521dafa0ba3815720599151adb12b4105f8848f597f97918d83

SHA512
b6608b64d71e94ecd68566f118708926af490c5f9f46cd051d1c6895b69bfc88a37171d47df8d00a4b157cd3afc57538260842e92cfd062bad819051c283d5be

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\IEREYVXM\3698212825-postmessagerelay[1].js

Filesize
12KB

MD5
e89f3c34bd849d5b959045facdced264

SHA1
6a4ed30e37cf844b1f56d5d81dc6dfec1c611476

SHA256
37acf5f6aa181790c9f46f7a25b5c89ecc46c35603b9b62c3086228faf72b26d

SHA512
2049d0baf05f0a8214fefe3abb2b4c6e104dda723d2feb439313114922887045cdabb08e3cffb5a624dc13a3c0b2fdf28114098b8c8ccfc3555ea43f19f20f7b

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\NB3GP0NJ\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\RY8A9UY0\rpc_shindig_random[1].js

Filesize
17KB

MD5
0ac770aa6d065c4f7ea98177e9420420

SHA1
ac286099bb09b1b3777c23d662282cb7c1fa1bfb

SHA256
fbd9a7627b8eee732c7f1393a8736593b27824b706046f38c4a444093165e561

SHA512
7f565af0595892c9737e61243194bd721657416227c18dfaa3e62e2fafa2f1b0a7a12ec0b4af7885e0d2e607006c46c87660e3d2c9fe2d6117e5ef567a3277b4

Download Submit