4cdeb2eae1cec1ab07077142313c524e9cf360cdec63497538c4405c2d8ded62

Analysis

max time kernel
429s
max time network
431s
platform
windows11-21h2_x64
resource
win11-20241007-en
resource tags

arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
submitted
22-12-2024 14:00

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General

Target

Quasar v1.4.1/Quasar.exe.xml
Size

176B
MD5

c8cd50e8472b71736e6543f5176a0c12
SHA1

0bd6549820de5a07ac034777b3de60021121405e
SHA256

b44739eeff82db2b575a45b668893e2fe8fdd24a709cbf0554732fd3520b2190
SHA512

6e8f77fcca5968788cc9f73c9543ce9ab7b416372bc681093aa8a3aad43af1f06c56fcbc296c7897a3654b86a6f9d0e8b0fe036677cf290957924377bc177d9f

Score

1^/10

Malware Config

Signatures

Modifies Internet Explorer settings 1 TTPs 29 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2499603254-3415597248-1508446358-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2499603254-3415597248-1508446358-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\IECompatVersionLow = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2499603254-3415597248-1508446358-1000\Software\Microsoft\Internet Explorer\GPU\SoftwareFallback = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2499603254-3415597248-1508446358-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\CVListDomainAttributeSet = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2499603254-3415597248-1508446358-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\StaleCompatCache = "1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2499603254-3415597248-1508446358-1000\Software\Microsoft\Internet Explorer\Main\OperationalData = "13"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2499603254-3415597248-1508446358-1000\Software\Microsoft\Internet Explorer\VersionManager\FirstCheckForUpdateHighDateTime = "31151290"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2499603254-3415597248-1508446358-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2499603254-3415597248-1508446358-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\CVListXMLVersionLow = "395196024"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2499603254-3415597248-1508446358-1000\Software\Microsoft\Internet Explorer\GPU\VendorId = "4318"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2499603254-3415597248-1508446358-1000\Software\Microsoft\Internet Explorer\Protected - It is a violation of Windows Policy to modify. See aka.ms/browserpolicy\HomepagesUpgradeVersion = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2499603254-3415597248-1508446358-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2499603254-3415597248-1508446358-1000\Software\Microsoft\Internet Explorer\Main\OperationalData = "9"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2499603254-3415597248-1508446358-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\IECompatVersionLow = "395196024"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2499603254-3415597248-1508446358-1000\Software\Microsoft\Internet Explorer\Protected - It is a violation of Windows Policy to modify. See aka.ms/browserpolicy	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2499603254-3415597248-1508446358-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPMigrationVer = "1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2499603254-3415597248-1508446358-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\IECompatVersionHigh = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2499603254-3415597248-1508446358-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\IECompatVersionHigh = "268435456"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2499603254-3415597248-1508446358-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2499603254-3415597248-1508446358-1000\Software\Microsoft\Internet Explorer\Main\DisableFirstRunCustomize = "1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2499603254-3415597248-1508446358-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\StaleCompatCache = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2499603254-3415597248-1508446358-1000\Software\Microsoft\Internet Explorer\BrowserEmulation	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2499603254-3415597248-1508446358-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\CVListXMLVersionHigh = "268435456"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2499603254-3415597248-1508446358-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2499603254-3415597248-1508446358-1000\Software\Microsoft\Internet Explorer\GPU\DeviceId = "140"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2499603254-3415597248-1508446358-1000\Software\Microsoft\Internet Explorer\GPU\SubSysId = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2499603254-3415597248-1508446358-1000\Software\Microsoft\Internet Explorer\VersionManager\FirstCheckForUpdateLowDateTime = "1392276134"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2499603254-3415597248-1508446358-1000\Software\Microsoft\Internet Explorer\Main\OperationalData = "8"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2499603254-3415597248-1508446358-1000\Software\Microsoft\Internet Explorer\GPU\Revision = "0"	iexplore.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 3376 wrote to memory of 5076	3376	MSOXMLED.EXE	77
PID 3376 wrote to memory of 5076	3376	MSOXMLED.EXE	77

C:\Program Files\Microsoft Office\Root\VFS\ProgramFilesCommonX64\Microsoft Shared\Office16\MSOXMLED.EXE
"C:\Program Files\Microsoft Office\Root\VFS\ProgramFilesCommonX64\Microsoft Shared\Office16\MSOXMLED.EXE" /verb open "C:\Users\Admin\AppData\Local\Temp\Quasar v1.4.1\Quasar.exe.xml"
1⤵
- Suspicious use of WriteProcessMemory
PID:3376
- C:\Program Files\Internet Explorer\iexplore.exe
  "C:\Program Files\Internet Explorer\iexplore.exe" C:\Users\Admin\AppData\Local\Temp\Quasar v1.4.1\Quasar.exe.xml
  2⤵
  - Modifies Internet Explorer settings
  PID:5076

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

memory/3376-0-0x00007FFAEB750000-0x00007FFAEB760000-memory.dmp

Filesize
64KB

Download
memory/3376-1-0x00007FFB2B763000-0x00007FFB2B764000-memory.dmp

Filesize
4KB

Download
memory/3376-2-0x00007FFAEB750000-0x00007FFAEB760000-memory.dmp

Filesize
64KB

Download
memory/3376-4-0x00007FFAEB750000-0x00007FFAEB760000-memory.dmp

Filesize
64KB

Download
memory/3376-3-0x00007FFAEB750000-0x00007FFAEB760000-memory.dmp

Filesize
64KB

Download
memory/3376-6-0x00007FFB2B6C0000-0x00007FFB2B8C9000-memory.dmp

Filesize
2.0MB

Download
memory/3376-7-0x00007FFAEB750000-0x00007FFAEB760000-memory.dmp

Filesize
64KB

Download
memory/3376-9-0x00007FFB2B6C0000-0x00007FFB2B8C9000-memory.dmp

Filesize
2.0MB

Download
memory/3376-8-0x00007FFB2B6C0000-0x00007FFB2B8C9000-memory.dmp

Filesize
2.0MB

Download
memory/3376-10-0x00007FFB2B6C0000-0x00007FFB2B8C9000-memory.dmp

Filesize
2.0MB

Download
memory/3376-5-0x00007FFB2B6C0000-0x00007FFB2B8C9000-memory.dmp

Filesize
2.0MB

Download
memory/3376-12-0x00007FFB2B6C0000-0x00007FFB2B8C9000-memory.dmp

Filesize
2.0MB

Download
memory/3376-13-0x00007FFB2B6C0000-0x00007FFB2B8C9000-memory.dmp

Filesize
2.0MB

Download
memory/3376-11-0x00007FFB2B6C0000-0x00007FFB2B8C9000-memory.dmp

Filesize
2.0MB

Download
memory/3376-16-0x00007FFB2B6C0000-0x00007FFB2B8C9000-memory.dmp

Filesize
2.0MB

Download
memory/3376-17-0x00007FFB2B6C0000-0x00007FFB2B8C9000-memory.dmp

Filesize
2.0MB

Download
memory/3376-15-0x00007FFB2B6C0000-0x00007FFB2B8C9000-memory.dmp

Filesize
2.0MB

Download
memory/3376-14-0x00007FFB2B6C0000-0x00007FFB2B8C9000-memory.dmp

Filesize
2.0MB

Download
memory/3376-18-0x00007FFAEB750000-0x00007FFAEB760000-memory.dmp

Filesize
64KB

Download
memory/3376-21-0x00007FFAEB750000-0x00007FFAEB760000-memory.dmp

Filesize
64KB

Download
memory/3376-20-0x00007FFAEB750000-0x00007FFAEB760000-memory.dmp

Filesize
64KB

Download
memory/3376-22-0x00007FFB2B6C0000-0x00007FFB2B8C9000-memory.dmp

Filesize
2.0MB

Download
memory/3376-19-0x00007FFAEB750000-0x00007FFAEB760000-memory.dmp

Filesize
64KB

Download