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Analysis
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max time kernel
152s -
max time network
181s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
05/12/2022, 08:00
Static task
static1
Behavioral task
behavioral1
Sample
22481b57460a84c75bee66652ece7a69afc946f29ab252f58bedbe021f47288a.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
22481b57460a84c75bee66652ece7a69afc946f29ab252f58bedbe021f47288a.exe
Resource
win10v2004-20221111-en
General
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Target
22481b57460a84c75bee66652ece7a69afc946f29ab252f58bedbe021f47288a.exe
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Size
2.5MB
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MD5
10c2eaa27b20c9f6dd0f3add518cb789
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SHA1
34874c9556dd9c9eb9466b6974fdd409e47a1cb7
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SHA256
22481b57460a84c75bee66652ece7a69afc946f29ab252f58bedbe021f47288a
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SHA512
a3dc22d9e10f3ff19e1d17e6eb145bc860acdf0550cbb55531f4f8bcb0c21168fb045901b8ea150ce7ec26a5d84cffda2b01ba97218cbd466334de86c5a82a4b
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SSDEEP
49152:2v2GmLW0XNsRpN9TYjizKyVqHxM2qil+j5j8wB/jhT:aCW0GRf9uizKy065j8srh
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 1524 EXPLEROR.EXE -
Drops file in Windows directory 1 IoCs
description ioc Process File created C:\WINDOWS\SYSTEM\EXPLEROR.EXE 22481b57460a84c75bee66652ece7a69afc946f29ab252f58bedbe021f47288a.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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description ioc Process Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\IESettingSync EXPLEROR.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\IESettingSync\SlowSettingTypesChanged = "2" EXPLEROR.EXE Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\DOMStorage\yy.com EXPLEROR.EXE Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage EXPLEROR.EXE Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\yy.com EXPLEROR.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\yy.com\NumberOfSubdomains = "1" EXPLEROR.EXE Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch EXPLEROR.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" EXPLEROR.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2836 22481b57460a84c75bee66652ece7a69afc946f29ab252f58bedbe021f47288a.exe 2836 22481b57460a84c75bee66652ece7a69afc946f29ab252f58bedbe021f47288a.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 2836 22481b57460a84c75bee66652ece7a69afc946f29ab252f58bedbe021f47288a.exe 2836 22481b57460a84c75bee66652ece7a69afc946f29ab252f58bedbe021f47288a.exe 1524 EXPLEROR.EXE 1524 EXPLEROR.EXE 1524 EXPLEROR.EXE 1524 EXPLEROR.EXE -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2836 wrote to memory of 1524 2836 22481b57460a84c75bee66652ece7a69afc946f29ab252f58bedbe021f47288a.exe 84 PID 2836 wrote to memory of 1524 2836 22481b57460a84c75bee66652ece7a69afc946f29ab252f58bedbe021f47288a.exe 84 PID 2836 wrote to memory of 1524 2836 22481b57460a84c75bee66652ece7a69afc946f29ab252f58bedbe021f47288a.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\22481b57460a84c75bee66652ece7a69afc946f29ab252f58bedbe021f47288a.exe"C:\Users\Admin\AppData\Local\Temp\22481b57460a84c75bee66652ece7a69afc946f29ab252f58bedbe021f47288a.exe"1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2836 -
C:\WINDOWS\SYSTEM\EXPLEROR.EXEC:\WINDOWS\SYSTEM\EXPLEROR.EXE2⤵
- Executes dropped EXE
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1524
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
612KB
MD5d4d07d767615db6757bd842161121a15
SHA15813e4dcc9656c874ae06a91e23f6ef4a024e090
SHA256aa5d23db3c2496acba298a0fdf0d79a5630720ee83c6af05bc2d02370ad2296a
SHA512575ccf52a496f484661b534716f878cd10ed73cca5a4f235d707a928a1bf7a419994e6b3e3d06d08ec9fd2d571a527d15a265c484520bf2a3b4247a2d20ad4e2
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Filesize
612KB
MD5d4d07d767615db6757bd842161121a15
SHA15813e4dcc9656c874ae06a91e23f6ef4a024e090
SHA256aa5d23db3c2496acba298a0fdf0d79a5630720ee83c6af05bc2d02370ad2296a
SHA512575ccf52a496f484661b534716f878cd10ed73cca5a4f235d707a928a1bf7a419994e6b3e3d06d08ec9fd2d571a527d15a265c484520bf2a3b4247a2d20ad4e2