64b9fcddb47dcd9aee6f23da3276b75fc675012a3190a3c73f23d0d36873f1bf

Resubmissions

02-04-2024 09:02

240402-kzss2acd51 10

26-08-2023 22:02

230826-1xr2qafd8x 10

Analysis

max time kernel
142s
max time network
162s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
26-08-2023 22:02

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General

Target

closebutton.html
Size

981B
MD5

c8efa039f4f84b2705a8e3a3b31da61c
SHA1

669749429feda1599c4ee980cfd67fbb1a54c1a4
SHA256

494693c2ac56ecac1a2588c25631e1bf71211fb0f06108649a983c879315b1aa
SHA512

db6c9817469c937a41eedbbbdaeb21a0860fa5228258978fe59d29c75ab1497b8d1a0ceaae2b236206d6935e186deaf0d83a73791658fa68a985dfc5c314aed2

Score

1^/10

Malware Config

Signatures

Modifies Internet Explorer settings 1 TTPs 41 IoCs

adware spyware

Modify Registry

T1112

Processes:

IEXPLORE.EXEiexplore.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\Software\Microsoft\Internet Explorer\IESettingSync	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31053929"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = b021911169d8d901	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\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
Set value (int)	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "250665894"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "399852316"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31053929"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000043db47ff6362a24abd0df5a96fa93c460000000002000000000010660000000100002000000077ef0faba5f8925e0779688dbf9f10b5fc6beb70b42b4b22449c9802383d2721000000000e80000000020000200000005840f27625d238d650836b42dbdbc604dcc47b71f218b183e5a802c5fa6cb4a0200000004f4a15048cb359ae5cf5bd8195e570be45148ef8775efcac2557489ac83fc9b240000000930a9bba6e791da32727abb00d5bc762d12ad5e2b368bf1e466d7c9817b0f9b0e72a33a963c80e8fa430384eaf203f02958758b7b7ed39cfc395a534585ae4df	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{3A4B3E3E-445C-11EE-B651-DAC42FC89509} = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "250665894"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31053929"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "269572284"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 8034a41169d8d901	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000043db47ff6362a24abd0df5a96fa93c4600000000020000000000106600000001000020000000fd438938d0b4e8f0b89b968714d9a6475099328bf23d44b3ed17523af8416ef7000000000e80000000020000200000009be162c8c559a590fe4d92bedc2c9bad2962418c3c3c8b9d35be8e04426f028220000000a0352e5f3fe9ab14d6a397b69a9cad8b97882e63aeed37997082cd847b6db81340000000341065f00e1d1529147d1eeddd71adc459d14aeef39473cb0f57c5f71eeea8d430eb84197b64be2c5f1b816a2687b0372caa1f1df9a30ae977712b4bfa82ee23	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\SOFTWARE\Microsoft\Internet Explorer\IESettingSync\SlowSettingTypesChanged = "2"	IEXPLORE.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

iexplore.exe

pid process

1320 iexplore.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

iexplore.exe

pid process

1320 iexplore.exe
Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

iexplore.exeIEXPLORE.EXE

pid process

1320 iexplore.exe
1320 iexplore.exe
1300 IEXPLORE.EXE
1300 IEXPLORE.EXE
1300 IEXPLORE.EXE
1300 IEXPLORE.EXE

pid	process
1320	iexplore.exe

pid	process
1320	iexplore.exe

pid	process
1320	iexplore.exe
1320	iexplore.exe
1300	IEXPLORE.EXE
1300	IEXPLORE.EXE
1300	IEXPLORE.EXE
1300	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

iexplore.exe

description	pid	process	target process
PID 1320 wrote to memory of 1300	1320	iexplore.exe	IEXPLORE.EXE
PID 1320 wrote to memory of 1300	1320	iexplore.exe	IEXPLORE.EXE
PID 1320 wrote to memory of 1300	1320	iexplore.exe	IEXPLORE.EXE

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" C:\Users\Admin\AppData\Local\Temp\closebutton.html
1⤵
- Modifies Internet Explorer settings
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1320
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1320 CREDAT:17410 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:1300

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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
b76a23b37666a7437d014c8f45e0c843

SHA1
fac0f80c6161321ab45222f5c7b74a9d14fe0aa7

SHA256
1fa8f775e6d41cf817e2a89d7b35a469f8c511b5e6f2092afc58bad8e743075f

SHA512
483c9f960400347614dce89560af6be1547627438af1a0464c9ccee9e8906df6957b68ae547dfce5adf384d5f4eccd2145e568c386c300a073d254bedf7bc24a

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

Filesize
404B

MD5
349085712914a525ec8fcc54c0fc40a0

SHA1
53b27517bd35e6eac14cea23ba18ac4db1ebaa93

SHA256
221c05fbfb492808ec646d2b7418289e3030ca297eaa0f47b4cc8ef00253e26a

SHA512
49d8574ddd29e53d733f480daaaa76add2512cf58976d792aa68354edd4e8ee6f3eb01cfdba60702c12e368c7e1e03ec7f92f3546787d978cbc1fb5e9948eb57

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\5XLATO3O\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit