45aa2cb4ec235f025da8de7aad5c2e2c9d460cd46fa5afc36de94f6c4aab56aa

Analysis

max time kernel
136s
max time network
164s
platform
windows10-2004_x64
resource
win10v2004-20230621-en
resource tags

arch:x64arch:x86image:win10v2004-20230621-enlocale:en-usos:windows10-2004-x64system
submitted
30/06/2023, 12:25

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General

Target

About/WinCal.xml
Size

1KB
MD5

bede56a7aef6b3db49ab7d2eb3f2870a
SHA1

bc18289b953a8ac6c0c8e519f72e6adee933ff98
SHA256

1fc29fc668043aa03ffeb2d61868d3369479c3cef2c4725d162cf5344dcbdcfa
SHA512

2bde0a5f1983b08379c262f86aadf8635834674981faf7feb3ebc39b12ece95b21203be82fde2fe88f6a662836374a7ac3d6fb8057d5273923259b3af206a3a6

Score

1^/10

Malware Config

Signatures

Modifies Internet Explorer settings 1 TTPs 39 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31042383"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000082e1c0dc4be3f54f8ffc5370cc661e5600000000020000000000106600000001000020000000b63b92d5b2afc25492239a7c71784e4dca2243acf7a9924eaa449967f5b9a37c000000000e8000000002000020000000b61ee75e999f8bdbf9b73c65ac4f06aa5245010e7378731baef764521b56a8832000000021fc9b23c6fff4461060ce9e971771b7f3c2abb04279a0b636c220e13b139f7640000000cefa003c4625e071f35c17ca55aebbf40660e8c8e132ecd39c488db05c3a1dcc12ecd173fe97620954931c2673b9a4d1d0d63e99f740f86d29f8effe1ae36fb4	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2849409800"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "394893606"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\Software\Microsoft\Internet Explorer\IESettingSync	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000082e1c0dc4be3f54f8ffc5370cc661e56000000000200000000001066000000010000200000007a9790d6f1ce24dd0a20f3285bb80461958a31b8080dc25b2a40025d15788910000000000e80000000020000200000002368d5238c71b7acad21ed19501d0da18a67cb752c3de292d172762ee46f3f5c20000000876612ee6ab8f3214c2354191577e4978b89b1e22d74bfdc199ffcf04ccb7f3440000000f8dd5013616bc31a98571521770fafddf706f038ed56bdcf0acc16303d50e99e6b69e9cd777f8aec60b80132aa85514e3084297820d88ddbd7a8ca4e13520927	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 508eaeab4fabd901	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2864566915"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 90c096ab4fabd901	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31042383"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31042383"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2849409800"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{D5578C36-1742-11EE-85C3-4E65556C6141} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\SOFTWARE\Microsoft\Internet Explorer\IESettingSync\SlowSettingTypesChanged = "2"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2940	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2940	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2940	iexplore.exe
2940	iexplore.exe
928	IEXPLORE.EXE
928	IEXPLORE.EXE
928	IEXPLORE.EXE
928	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1068 wrote to memory of 2940	1068	MSOXMLED.EXE	83
PID 1068 wrote to memory of 2940	1068	MSOXMLED.EXE	83
PID 2940 wrote to memory of 928	2940	iexplore.exe	85
PID 2940 wrote to memory of 928	2940	iexplore.exe	85
PID 2940 wrote to memory of 928	2940	iexplore.exe	85

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\About\WinCal.xml"
1⤵
- Suspicious use of WriteProcessMemory
PID:1068
- C:\Program Files\Internet Explorer\iexplore.exe
  "C:\Program Files\Internet Explorer\iexplore.exe" C:\Users\Admin\AppData\Local\Temp\About\WinCal.xml
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2940
- - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2940 CREDAT:17410 /prefetch:2
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of SetWindowsHookEx
    PID:928

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\X8M28FTI\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
memory/1068-133-0x00007FFC85D70000-0x00007FFC85D80000-memory.dmp

Filesize
64KB

Download
memory/1068-134-0x00007FFC85D70000-0x00007FFC85D80000-memory.dmp

Filesize
64KB

Download
memory/1068-135-0x00007FFC85D70000-0x00007FFC85D80000-memory.dmp

Filesize
64KB

Download
memory/1068-136-0x00007FFC85D70000-0x00007FFC85D80000-memory.dmp

Filesize
64KB

Download
memory/1068-137-0x00007FFC85D70000-0x00007FFC85D80000-memory.dmp

Filesize
64KB

Download
memory/1068-139-0x00007FFC85D70000-0x00007FFC85D80000-memory.dmp

Filesize
64KB

Download
memory/1068-138-0x00007FFC85D70000-0x00007FFC85D80000-memory.dmp

Filesize
64KB

Download
memory/1068-140-0x00007FFC85D70000-0x00007FFC85D80000-memory.dmp

Filesize
64KB

Download
memory/1068-141-0x00007FFC85D70000-0x00007FFC85D80000-memory.dmp

Filesize
64KB

Download