Analysis
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max time kernel
70s -
max time network
138s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
04/11/2022, 13:50
Static task
static1
Behavioral task
behavioral1
Sample
8e5e1f252f1343f4746328b5e5368d34ba091765c4c294a7c72bc64657c4ed79.exe
Resource
win7-20220812-en
windows7-x64
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
8e5e1f252f1343f4746328b5e5368d34ba091765c4c294a7c72bc64657c4ed79.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
10 signatures
150 seconds
General
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Target
8e5e1f252f1343f4746328b5e5368d34ba091765c4c294a7c72bc64657c4ed79.exe
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Size
5.3MB
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MD5
70613d7b1bfef3f05722f6e2cad37a90
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SHA1
f1ed5e9dbea9c79ea1a0c7ec6308f4dba793ab7f
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SHA256
8e5e1f252f1343f4746328b5e5368d34ba091765c4c294a7c72bc64657c4ed79
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SHA512
aa8e95374a23a8d733f48a67545a9478327343c6fe2a289f53e02bcf4dd24290a050c15ae958f4c4e0c4ce36aadc4e73dcc76c10e97663f8fca07f066a245c44
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SSDEEP
98304:9yd/J+ZbgLWZee4RgC2j/ETlcgcO1l3/8:Id/J+ZbgLYhIvA/m1lE
Score
7/10
Malware Config
Signatures
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Loads dropped DLL 1 IoCs
pid Process 784 8e5e1f252f1343f4746328b5e5368d34ba091765c4c294a7c72bc64657c4ed79.exe -
Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files (x86)\Common Files\FeiYingSim\SimLauncher2021.exe 8e5e1f252f1343f4746328b5e5368d34ba091765c4c294a7c72bc64657c4ed79.exe File opened for modification C:\Program Files (x86)\Common Files\FeiYingSim\SimLauncher2021.exe 8e5e1f252f1343f4746328b5e5368d34ba091765c4c294a7c72bc64657c4ed79.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 Set value (int) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{055C3F01-5C50-11ED-9C90-C6457FCBF3CF} = "0" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 60f2e1e45cf0d801 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\PageSetup iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "373735296" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Zoom iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\IntelliForms iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000d3b98f5693c0d24b85f349229339c59c0000000002000000000010660000000100002000000096a179e7d77769da892b830625543ed388ce510ed5bd68aeaf8cd24ffc79d3c4000000000e800000000200002000000049392b7013eb472936604a3ecf2aadd8511c464b991f893f365ce5183464934f200000003346a7666a99b3d8aa0eb5e5a03cc0696388bd530956a760bfe58a9f33817f9540000000a52095f226d2e87c1b996fe7617834a47349c4f04a0f6de09f5f97e8c67147ff9458945e978d3acf7a1d1a1be5554cf3c4fe8e9f7d4c6833ad31a6660b6c758e iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\GPU iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Toolbar iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 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 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\IETld\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\LowRegistry iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\InternetRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 1428 iexplore.exe -
Suspicious use of SetWindowsHookEx 9 IoCs
pid Process 784 8e5e1f252f1343f4746328b5e5368d34ba091765c4c294a7c72bc64657c4ed79.exe 1428 iexplore.exe 1428 iexplore.exe 1460 IEXPLORE.EXE 1460 IEXPLORE.EXE 784 8e5e1f252f1343f4746328b5e5368d34ba091765c4c294a7c72bc64657c4ed79.exe 784 8e5e1f252f1343f4746328b5e5368d34ba091765c4c294a7c72bc64657c4ed79.exe 1460 IEXPLORE.EXE 1460 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 784 wrote to memory of 1428 784 8e5e1f252f1343f4746328b5e5368d34ba091765c4c294a7c72bc64657c4ed79.exe 26 PID 784 wrote to memory of 1428 784 8e5e1f252f1343f4746328b5e5368d34ba091765c4c294a7c72bc64657c4ed79.exe 26 PID 784 wrote to memory of 1428 784 8e5e1f252f1343f4746328b5e5368d34ba091765c4c294a7c72bc64657c4ed79.exe 26 PID 784 wrote to memory of 1428 784 8e5e1f252f1343f4746328b5e5368d34ba091765c4c294a7c72bc64657c4ed79.exe 26 PID 1428 wrote to memory of 1460 1428 iexplore.exe 28 PID 1428 wrote to memory of 1460 1428 iexplore.exe 28 PID 1428 wrote to memory of 1460 1428 iexplore.exe 28 PID 1428 wrote to memory of 1460 1428 iexplore.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\8e5e1f252f1343f4746328b5e5368d34ba091765c4c294a7c72bc64657c4ed79.exe"C:\Users\Admin\AppData\Local\Temp\8e5e1f252f1343f4746328b5e5368d34ba091765c4c294a7c72bc64657c4ed79.exe"1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:784 -
C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe" http://www.feiyingsimulator.com/en/ksim/SimLauncher.html2⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1428 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1428 CREDAT:275457 /prefetch:23⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1460
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
5.3MB
MD570613d7b1bfef3f05722f6e2cad37a90
SHA1f1ed5e9dbea9c79ea1a0c7ec6308f4dba793ab7f
SHA2568e5e1f252f1343f4746328b5e5368d34ba091765c4c294a7c72bc64657c4ed79
SHA512aa8e95374a23a8d733f48a67545a9478327343c6fe2a289f53e02bcf4dd24290a050c15ae958f4c4e0c4ce36aadc4e73dcc76c10e97663f8fca07f066a245c44