71398ec09f40842b05470aad1456b80febc1548c3fd17f576e76dbf67dacc8ee

Analysis

max time kernel
141s
max time network
214s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
24-11-2022 23:26

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General

Target

VRChat_Data/il2cpp_data/etc/mono/4.5/machine.xml
Size

33KB
MD5

0869544722561f5aff0eefc83fc7b001
SHA1

1e118f4b5c1c6a7b1858e3fccb1b1d1095561976
SHA256

ef9b9387168fd1dd6c996f96c134d9c44f8eb06f9587004bf997252a520182d6
SHA512

ced7c9a5363cabdb87b01ed6b4ca190a690640dddf5cbcc0438acdc611a8ee942cb6cd73c78d3fc2d59f70171f22ac832a10b1e23758dc92599ee24acd978ac2
SSDEEP

384:PbtltttttSRtNRtcRtGrRtSRtTf5Rt70zDgRt2Rtuj4f1RDRty6ugyunHMSeuWuh:dkn

Score

1^/10

Malware Config

Signatures

Modifies Internet Explorer settings 1 TTPs 14 IoCs

adware spyware

Modify Registry

T1112

Processes:

iexplore.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{E8FE0955-6C58-11ED-A973-7AC0888F8496} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000\Software\Microsoft\Internet Explorer\MINIE\TabBandWidth = "500"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000\Software\Microsoft\Internet Explorer\Recovery\PendingDelete	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000\Software\Microsoft\Internet Explorer\MINIE	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000\Software\Microsoft\Internet Explorer\Recovery\PendingDelete\C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\{E8FE0957-6C58-11ED-A973-7AC0888F8496}.dat = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

iexplore.exe

pid process

2912 iexplore.exe
2912 iexplore.exe

pid	process
2912	iexplore.exe
2912	iexplore.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

MSOXMLED.EXEiexplore.exe

description	pid	process	target process
PID 2532 wrote to memory of 2912	2532	MSOXMLED.EXE	iexplore.exe
PID 2532 wrote to memory of 2912	2532	MSOXMLED.EXE	iexplore.exe
PID 2912 wrote to memory of 3988	2912	iexplore.exe	IEXPLORE.EXE
PID 2912 wrote to memory of 3988	2912	iexplore.exe	IEXPLORE.EXE
PID 2912 wrote to memory of 3988	2912	iexplore.exe	IEXPLORE.EXE

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\VRChat_Data\il2cpp_data\etc\mono\4.5\machine.xml"
1⤵
- Suspicious use of WriteProcessMemory
PID:2532

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" C:\Users\Admin\AppData\Local\Temp\VRChat_Data\il2cpp_data\etc\mono\4.5\machine.xml
2⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2912

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2912 CREDAT:82945 /prefetch:2
3⤵
PID:3988

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

memory/2532-120-0x00007FF7C3540000-0x00007FF7C3550000-memory.dmp

Filesize
64KB

Download
memory/2532-122-0x00007FF7C3540000-0x00007FF7C3550000-memory.dmp

Filesize
64KB

Download
memory/2532-121-0x00007FFFBFC20000-0x00007FFFBFC30000-memory.dmp

Filesize
64KB

Download
memory/2532-124-0x00007FF7C3540000-0x00007FF7C3550000-memory.dmp

Filesize
64KB

Download
memory/2532-126-0x00007FF7C3540000-0x00007FF7C3550000-memory.dmp

Filesize
64KB

Download
memory/2532-128-0x00007FF7C3540000-0x00007FF7C3550000-memory.dmp

Filesize
64KB

Download
memory/2532-130-0x00007FF7C3540000-0x00007FF7C3550000-memory.dmp

Filesize
64KB

Download
memory/2532-131-0x00007FF7C3540000-0x00007FF7C3550000-memory.dmp

Filesize
64KB

Download
memory/2532-132-0x00007FF7C3540000-0x00007FF7C3550000-memory.dmp

Filesize
64KB

Download