1812c84a304afc590bae6fb6e7717149d8f1e1a4d72975de302a392ff357642e

Analysis

max time kernel
899s
max time network
434s
platform
windows10-ltsc_2021_x64
resource
win10ltsc2021-20260513-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20260513-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
submitted
07/09/2026, 03:48

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General

Target
browser/resources/app.asar.unpacked/node_modules/bufferutil/build/bufferutil.xml
Size 11KB
Sample260907-ec7qsaee87
SHA256 1812c84a304afc590bae6fb6e7717149d8f1e1a4d72975de302a392ff357642e
MD5 b9c232d6bef0786e02e895f307f97a27
SHA1 08f71cfb105730b1e159f22d0bdbca3432cb05e8
SHA512 962aa3a3a54e5915434b5bc325b3e1ae3dc83b0c75be6de00fbf8b096567e157d442f135056dfa59135432b567d5cbb72422b2d25e9a12f0fd313474e036b77d
SSDEEP 96:fQgbfMEaLctZvfzldGWqE4wAlzvN1wZwHUqE47ApqE4YAlzvN1wZwHUqE47xB:4g9zPGF7F14wH/pAAzF14wH/Rj
TLSH
T1C3327546F4B85BBB918B292785E00D4E0DB2D2976D5904A8F64DD6DD3F6B408A223F33
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

adware discovery spyware

Malware Config

Signatures

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE

Modifies Internet Explorer settings 1 TTPs 35 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1741132852-2793423776-1557670484-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1741132852-2793423776-1557670484-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1741132852-2793423776-1557670484-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1741132852-2793423776-1557670484-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1741132852-2793423776-1557670484-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1741132852-2793423776-1557670484-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1741132852-2793423776-1557670484-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000434f87bf5d8d2f4fb11ee74f935a42ca0000000002000000000010660000000100002000000095b9a50ccb03088e9986d4a11de6937bbd7d5259c7936185c458d8cb2f4ab6db000000000e800000000200002000000017fd5f8f75951fdc03a4d289a28c8d76079cc5d3aa609464bba475215b0c0aea200000007027ab6b7d012313acc705331174b4cfc4b9554c0e3e98e0e7f1b6865e363e2240000000559612cfd4cb36928a5d973c1e3872e36f9e81b42f45c4ccf9ac037a6fffd34fa8889959977ccc1233c70824ea4e932cec4b527dae913a60a4d592acc1fd1e49	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1741132852-2793423776-1557670484-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 10bb82c4843edd01	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1741132852-2793423776-1557670484-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1741132852-2793423776-1557670484-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1741132852-2793423776-1557670484-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1741132852-2793423776-1557670484-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1741132852-2793423776-1557670484-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1741132852-2793423776-1557670484-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1741132852-2793423776-1557670484-1000\SOFTWARE\Microsoft\Internet Explorer\IESettingSync\SlowSettingTypesChanged = "2"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1741132852-2793423776-1557670484-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1741132852-2793423776-1557670484-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1647736312"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1741132852-2793423776-1557670484-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1741132852-2793423776-1557670484-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1741132852-2793423776-1557670484-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1741132852-2793423776-1557670484-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1741132852-2793423776-1557670484-1000\Software\Microsoft\Internet Explorer\IESettingSync	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1741132852-2793423776-1557670484-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1643205274"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1741132852-2793423776-1557670484-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1741132852-2793423776-1557670484-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{8D09692E-AA6F-11F1-90A9-EAFF25C371AD} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1741132852-2793423776-1557670484-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31276668"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1741132852-2793423776-1557670484-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000434f87bf5d8d2f4fb11ee74f935a42ca000000000200000000001066000000010000200000007f6c38f83457030d147dbba79baca8f0a32e533e1e935d29ac83b01ec544baa4000000000e8000000002000020000000c18a4043d4dbcf284d73067906c9ebb7d3fa0e0b205afd00eafa6c5999f7b61420000000ace7d92fbb1898de12b9b9e9d9acbebb338daf34a77e3487a1a998918b8d03ca40000000113a4b967be0ba17e05063791d5679fae942c4fbfa0a20356361f0fedd68c5f426750b2ec61ae7073194623a82e2fabf95633aaadab1ab0e455119c13952ca51	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1741132852-2793423776-1557670484-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 208f7bc4843edd01	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1741132852-2793423776-1557670484-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1741132852-2793423776-1557670484-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1741132852-2793423776-1557670484-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "495518126"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1741132852-2793423776-1557670484-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1741132852-2793423776-1557670484-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1741132852-2793423776-1557670484-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1741132852-2793423776-1557670484-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31276668"	IEXPLORE.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3992	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3992	iexplore.exe
3992	iexplore.exe
3968	IEXPLORE.EXE
3968	IEXPLORE.EXE
3968	IEXPLORE.EXE
3968	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4620 wrote to memory of 3992	4620	MSOXMLED.EXE	85
PID 3992 wrote to memory of 3968	3992	iexplore.exe	87

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\browser\resources\app.asar.unpacked\node_modules\bufferutil\build\bufferutil.xml"
1⤵
- Suspicious use of WriteProcessMemory
PID:4620
- C:\Program Files\Internet Explorer\iexplore.exe
  "C:\Program Files\Internet Explorer\iexplore.exe" C:\Users\Admin\AppData\Local\Temp\browser\resources\app.asar.unpacked\node_modules\bufferutil\build\bufferutil.xml
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3992
- - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3992 CREDAT:17410 /prefetch:2
    3⤵
    - System Location Discovery: System Language Discovery
    - Modifies Internet Explorer settings
    - Suspicious use of SetWindowsHookEx
    PID:3968

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

E2C6CBAF0AF08CF203BA74BF0D0AB6D5_430EA0912164D1B129D6E1DC07C63959

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_430EA0912164D1B129D6E1DC07C63959
Size 471B
SHA256 806f210aadcb1eb1f4960e8354c71c13d0657a5fd8a6253403c0b73991cd7836
MD5 73e967bc274341b7845e27af8f8de4cc
SHA1 e303a248abd1d4569c276da2ed508be01201ccd8
SHA512 aedd898429edd4e338591f271d823208204cab87bd66aca4dc9ab96ba1f867e9a3e6d248c53f42c660e95161b6456188377589ae0449210424010132dd64be17
TLSH
T10BF0D423597AF88025C1A4EE34B24DB67831B4A70880071268394DD34BF4355E746078
MD5 SHA1 SHA512 TLSH

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E2C6CBAF0AF08CF203BA74BF0D0AB6D5_430EA0912164D1B129D6E1DC07C63959

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_430EA0912164D1B129D6E1DC07C63959
Size 416B
SHA256 6446d3fe1bb69d30b29b66d2b616d13bed5bc8c486f70e3425e295941b18ee70
MD5 1ac0426ece205de2c80a80c0e7e8eb8c
SHA1 e97f116aee5c059c7466a8699d48baf3842b99c3
SHA512 7453da0b7fed59636cbfb39b84feb412571410acbc595787f49b645ec2a2cfdeb4b7f677ae8da6f114276ee2174b5424890b9ffe0cab3f2fcda9582a00434675
TLSH
T1EEE0C02412F6412EF0E4E07947C6743A98AEF0220419E2B42ED85B04B7026409C03A2D
MD5 SHA1 SHA512 TLSH

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suggestions[1].en-US

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\IJJ96J3L\suggestions[1].en-US
Size 17KB
SHA256 c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
MD5 5a34cb996293fde2cb7a4ac89587393a
SHA1 3c96c993500690d1a77873cd62bc639b3a10653f
SHA512 e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee
SSDEEP 384:K4gN8sGygaEKfWYSJUKbO7UckxtBjCdY7mO3D0C5l+piEieDSV126ry1/XSGKwG3:K4gNFXiKfWfJ1Kockxbd7mAt5Mp5ie2F
TLSH
T13A823E4E61D88F57EA47B6B2D9084EA702E0C8794716DB93D62CFE63CDE33B25D02161
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/4620-10-0x00007FFE6D090000-0x00007FFE6D288000-memory.dmp

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memory/4620-12-0x00007FFE6D090000-0x00007FFE6D288000-memory.dmp

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memory/4620-8-0x00007FFE6D090000-0x00007FFE6D288000-memory.dmp

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memory/4620-5-0x00007FFE6D090000-0x00007FFE6D288000-memory.dmp

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memory/4620-9-0x00007FFE6D090000-0x00007FFE6D288000-memory.dmp

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memory/4620-7-0x00007FFE2D110000-0x00007FFE2D120000-memory.dmp

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memory/4620-6-0x00007FFE6D090000-0x00007FFE6D288000-memory.dmp

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memory/4620-1-0x00007FFE2D110000-0x00007FFE2D120000-memory.dmp

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memory/4620-11-0x00007FFE6D090000-0x00007FFE6D288000-memory.dmp

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memory/4620-0-0x00007FFE2D110000-0x00007FFE2D120000-memory.dmp

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memory/4620-13-0x00007FFE6D090000-0x00007FFE6D288000-memory.dmp

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memory/4620-17-0x00007FFE2D110000-0x00007FFE2D120000-memory.dmp

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memory/4620-16-0x00007FFE2D110000-0x00007FFE2D120000-memory.dmp

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memory/4620-14-0x00007FFE2D110000-0x00007FFE2D120000-memory.dmp

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memory/4620-18-0x00007FFE6D090000-0x00007FFE6D288000-memory.dmp

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memory/4620-15-0x00007FFE2D110000-0x00007FFE2D120000-memory.dmp

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memory/4620-2-0x00007FFE2D110000-0x00007FFE2D120000-memory.dmp

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memory/4620-3-0x00007FFE2D110000-0x00007FFE2D120000-memory.dmp

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memory/4620-4-0x00007FFE6D12D000-0x00007FFE6D12E000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

Replay Monitor

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Downloads