21a2010c20e5baa21afe8024309c3d28feee0979d35b15971ebc2afe2f1c1b3a

Analysis

max time kernel
170s
max time network
182s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
26/12/2023, 00:40

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General

Target

471049cf838bce57230321ba48851c96.html
Size

8KB
MD5

471049cf838bce57230321ba48851c96
SHA1

6c4bc707f5a131c9dd3c63c91de4a83eb2faf1e0
SHA256

21a2010c20e5baa21afe8024309c3d28feee0979d35b15971ebc2afe2f1c1b3a
SHA512

b99600e71a0ac4e3e7c515551e090a944264ede16316d278fc9a9e812fda09c417727aff0fbe291f69bb616a86a6918a4a77afc7fb20949827c28d72a50cff2c
SSDEEP

192:7gsSc/BBBBBBBBjIIIhX03rY9kqDK8cwuYNOp7X:VSCIIIhE7Y9rDKlwdApD

Score

1^/10

Malware Config

Signatures

Modifies Internet Explorer settings 1 TTPs 30 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{A14B4592-A459-11EE-9BE3-CA152A8DAB80} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\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
Key created	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31078502"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "410406516"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31078502"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31078502"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1987285481"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1992596845"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1987285481"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1916	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1916	iexplore.exe
1916	iexplore.exe
3740	IEXPLORE.EXE
3740	IEXPLORE.EXE
3740	IEXPLORE.EXE
3740	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1916 wrote to memory of 3740	1916	iexplore.exe	90
PID 1916 wrote to memory of 3740	1916	iexplore.exe	90
PID 1916 wrote to memory of 3740	1916	iexplore.exe	90

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" C:\Users\Admin\AppData\Local\Temp\471049cf838bce57230321ba48851c96.html
1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1916
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1916 CREDAT:17410 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:3740

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\Local\Microsoft\Windows\INetCache\IE\BUOTXRX9\update[1].htm

Filesize
186B

MD5
6ed2e22164f3cce190d276ee95520d49

SHA1
568a6866420ad402a40e5352eb1b77dd8da02f91

SHA256
e3afbdde6681d6ed1ef9e735c8a32039bbf33828c1a6f03f4f5c82b403741a23

SHA512
494c0f0246c74112af9b9fa212c8656ac2d55de2308266439e0c7c10f1c55cfd0cefb8008fee917609123709953eb3270cdf46f1e85340b640ba7b6de486fc23

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\J6M39GIU\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\K44LV95Q\custom[1].js

Filesize
31KB

MD5
136bc91b923c115f678c13f3740bf8fa

SHA1
d8044de6e6a8b05f087f9fb73545d5b2e9666d61

SHA256
46e2c2af87720b7ae5a86434547bd9bef9ff21fab2956b64bc48f17dc73c63a7

SHA512
2ff613aa8dc2887a5c2f9d8d40e618ef82b8ffc46392affd32a9fa2225360f1db5244a51f82d5eba8fcf3c200f179da20433761a3ebb6fce0e4ede99d129a3cb

Download Submit