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Resubmissions
16/02/2023, 08:23
230216-kacqhsgf66 714/02/2023, 13:14
230214-qg2acach6z 714/02/2023, 13:10
230214-qetsgsde72 7Analysis
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max time kernel
83s -
max time network
86s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
14/02/2023, 13:14
Static task
static1
Behavioral task
behavioral1
Sample
67cf719a695ae1b769da9253901c26d8.exe
Resource
win7-20221111-en
windows7-x64
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
67cf719a695ae1b769da9253901c26d8.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
Errors
Reason
Machine shutdown
General
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Target
67cf719a695ae1b769da9253901c26d8.exe
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Size
5.1MB
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MD5
67cf719a695ae1b769da9253901c26d8
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SHA1
c148e7823e4bd98060f1b1d402aed070f99b5902
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SHA256
296becf74a7989ff8f63a1c572b8b01ff0a7e8472d4d59f31bf9167ed195b2f6
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SHA512
52a82db982f67f78558933c2ea5d2df8a88a20fdbedd71fcb0cd367b7c88b91a5388aec1bf5f305b1a0e8c610d489c93149599ee0fe3136d201e2522d50a5a48
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SSDEEP
98304:MspkzuYnHDsB7V7UsE/8EI79WFynJih6/BG:M2Su7VSk7wQJc60
Score
7/10
Malware Config
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation 67cf719a695ae1b769da9253901c26d8.exe -
Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
description ioc Process File opened for modification \??\PhysicalDrive0 67cf719a695ae1b769da9253901c26d8.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-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3418593196" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3419999513" IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "383149073" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\360.cn IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\360.cn\NumberOfSubdomains = "1" IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\DOMStorage\360.cn IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\IESettingSync IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31015038" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31015038" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31015038" IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 60bc99dc7e40d901 IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{F6B9ECDE-AC71-11ED-89AC-F6DE28FD18F9} = "0" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb010000007cf4250823c523409d6fab1ab8fd86bd00000000020000000000106600000001000020000000c2b9ce4f4b99da25728d4d24158226984a5be2a7eabcdaf3d24cc28081c33550000000000e8000000002000020000000cb4748f20ae319d81e4cf6e58db911f4ecbace98c0313b236c246f991afdb162200000007695368ce7beefa9b820a0fa49307a772e64392db1c273f60d33552d74fde9cc40000000817c1ab3f0562fa4f0589de72a600be9aef29fd63d960abed2fe42e06a60501ca5e993e10cd1f9990b6beea8c06e34118b4ea7f355ba51d1e056acac27b3fd77 IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\DomainSuggestion IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3418593196" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb010000007cf4250823c523409d6fab1ab8fd86bd00000000020000000000106600000001000020000000188a766791ee5791107c01c87d2d54d2c629eba299a02e82db2be42b27a3a446000000000e8000000002000020000000afe1b7b74f524f7ec7953d61a42a2f6966b2eee8b6a62b751a2781873020233220000000631980506cd666efd9071bfe198ed133bd1905eaef9c8da89da57e6c2d86d4c640000000047b5fee4649d83338b4a7f4546efdae7b4c36f8cc8a26892cb24b7f9f6a1729fe07958f54113ef1dd08ddd8a3c5a7caa6ece5a4cfc19cb54fef61a9f7ae4830 IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\IESettingSync\SlowSettingTypesChanged = "2" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3419999513" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = d06a6cdc7e40d901 IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31015038" IEXPLORE.EXE -
Modifies data under HKEY_USERS 15 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040" LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1" LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271" LogonUI.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00 LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "174" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1" LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271" LogonUI.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 372 IEXPLORE.EXE -
Suspicious use of SetWindowsHookEx 7 IoCs
pid Process 372 IEXPLORE.EXE 372 IEXPLORE.EXE 1780 IEXPLORE.EXE 1780 IEXPLORE.EXE 1780 IEXPLORE.EXE 1780 IEXPLORE.EXE 3384 LogonUI.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4660 wrote to memory of 1920 4660 67cf719a695ae1b769da9253901c26d8.exe 81 PID 4660 wrote to memory of 1920 4660 67cf719a695ae1b769da9253901c26d8.exe 81 PID 4660 wrote to memory of 1920 4660 67cf719a695ae1b769da9253901c26d8.exe 81 PID 1920 wrote to memory of 372 1920 iexplore.exe 82 PID 1920 wrote to memory of 372 1920 iexplore.exe 82 PID 372 wrote to memory of 1780 372 IEXPLORE.EXE 83 PID 372 wrote to memory of 1780 372 IEXPLORE.EXE 83 PID 372 wrote to memory of 1780 372 IEXPLORE.EXE 83
Processes
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C:\Users\Admin\AppData\Local\Temp\67cf719a695ae1b769da9253901c26d8.exe"C:\Users\Admin\AppData\Local\Temp\67cf719a695ae1b769da9253901c26d8.exe"1⤵
- Checks computer location settings
- Writes to the Master Boot Record (MBR)
- Suspicious use of WriteProcessMemory
PID:4660 -
C:\Program Files (x86)\Internet Explorer\iexplore.exe"C:\Program Files (x86)\Internet Explorer\iexplore.exe" http://bbs.360.cn/thread-15667307-1-1.html2⤵
- Suspicious use of WriteProcessMemory
PID:1920 -
C:\Program Files\Internet Explorer\IEXPLORE.EXE"C:\Program Files\Internet Explorer\IEXPLORE.EXE" http://bbs.360.cn/thread-15667307-1-1.html3⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:372 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:372 CREDAT:17410 /prefetch:24⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1780
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C:\Windows\system32\LogonUI.exe"LogonUI.exe" /flags:0x4 /state0:0xa3991855 /state1:0x41c64e6d1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:3384
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize471B
MD5dd3762c0e3e884c5b1810e000d348bae
SHA1a5c25fc58e5f1ab11c2eae9fb8fd640b35ea6e1f
SHA256513f96d78d0b4e87981ab4764943bc623fbb5bd28afc86fa8c259c590aa42514
SHA512df20a18964229e3101d4769cd8696e92cb9246e91538d6b0ecf66363e55f1466370613074cb98a28c00b478087d594f247591e1988ccbb25f5d331b4157cb245
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize404B
MD5bf3c6e2d1a6f137ffc41afdc6238c818
SHA15a011c3c89f9af46c17d1f22ad00c5226fc62ace
SHA256baaa26157f56d0d9ca61c0d9aeab7a02fc41c668f1784cf6920b8daee1defc55
SHA51270e75a35378460b58bf0c64496891bbec244f4cf773229fd25c5fd151acc0e67a66cbbb32559d74b1d84efcd2c764f74eb7dfc4c32761f7d31246b3fba2cc04a
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Filesize
9KB
MD5f73f0d9d99ae9dc8760701389affa6b1
SHA19a68201053ab155bc0e996e5dd9063b509e9a451
SHA2565cb6f407257aaa97a91dd750196923d8f6a1a05134b1b43efb3d3650058b3147
SHA512783c237837eb20d87d25862c25e7b72844d25c46a661898884b8ff52b198abc9024c656cf69b589a967349bed9823ccbd45f51d4553a4b70c1410459f729052f