Analysis
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max time kernel
114s -
max time network
155s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
05-12-2022 17:28
Static task
static1
Behavioral task
behavioral1
Sample
85f7083f9fb16cdea99828ad14ee6cc81ce1f950c1cba3a497d4758206992ad5.dll
Resource
win7-20220812-en
windows7-x64
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
85f7083f9fb16cdea99828ad14ee6cc81ce1f950c1cba3a497d4758206992ad5.dll
Resource
win10v2004-20220812-en
windows10-2004-x64
7 signatures
150 seconds
General
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Target
85f7083f9fb16cdea99828ad14ee6cc81ce1f950c1cba3a497d4758206992ad5.dll
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Size
383KB
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MD5
3edd8bba70645dc69f88f16a4c6e1993
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SHA1
cd419ce0e17794c645b9ba1691020838512f7ba2
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SHA256
85f7083f9fb16cdea99828ad14ee6cc81ce1f950c1cba3a497d4758206992ad5
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SHA512
e565824ed9f6784881228b2c6770e59eb130ece467594245a905ea9c30fc36c8a91c6198c20daca93296f65827b21db9e329580024179ca79b601e3ab7b39be3
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SSDEEP
6144:aYgf9i9/LlhOPjLe0NY+DfA7wCJTcwMyYUlbS2WTs94zqbMeNMzFOV2hU:azf9k/Rh+24TKW2WTs7jNohU
Score
6/10
Malware Config
Signatures
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\rmmksuddkvlypzib = "C:\\Windows\\System32\\regsvr32.exe /s \"C:\\Users\\Admin\\AppData\\Local\\Temp\\85f7083f9fb16cdea99828ad14ee6cc81ce1f950c1cba3a497d4758206992ad5.dll\"" regsvr32.exe -
Installs/modifies Browser Helper Object 2 TTPs 2 IoCs
BHOs are DLL modules which act as plugins for Internet Explorer.
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{515082E2-D38F-2DC4-8DAB-0A80A0485670} regsvr32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{515082E2-D38F-2DC4-8DAB-0A80A0485670}\NoExplorer = "1" regsvr32.exe -
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{2B019831-7835-11ED-9738-7E4CDA66D2DC} = "0" 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\TabbedBrowsing iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "377405514" 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 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\InternetRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage 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 Set value (data) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000f8df8a8596f44249b4bf7e7a9bbf5c1100000000020000000000106600000001000020000000e17722b95370f4a5d9dec013c27b4209537401c3865aa09308061289be46bc68000000000e80000000020000200000008dc33c8246e037e44eb4eae886473804f5745c905c304934c054143a102a601220000000a7e46ba262b3d0de0247a642545c8c0a8387d6980fa350565ac3241bc38cb5844000000062dfda68a74fa3637dfa5c4f0a7746425ae2e15db88ebc988fb6d118969abcde3f0f3eb437d208427cf3f96ebc3491ebd821f325534592813276b2ee0b4face4 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\MINIE 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 (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" 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\Toolbar 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 Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main 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\DomainSuggestion\FileNames\ 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\Toolbar\WebBrowser iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\MINIE\TabBandWidth = "500" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames 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\Zoom iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 70df730e420cd901 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\BrowserEmulation\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage iexplore.exe -
Modifies registry class 5 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{515082E2-D38F-2DC4-8DAB-0A80A0485670}\ = "bannerstyle browser enhancer" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{515082E2-D38F-2DC4-8DAB-0A80A0485670}\InProcServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{515082E2-D38F-2DC4-8DAB-0A80A0485670}\InProcServer32\ThreadingModel = "Apartment" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{515082E2-D38F-2DC4-8DAB-0A80A0485670}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\85f7083f9fb16cdea99828ad14ee6cc81ce1f950c1cba3a497d4758206992ad5.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{515082E2-D38F-2DC4-8DAB-0A80A0485670} regsvr32.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 1976 iexplore.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 1976 iexplore.exe 1976 iexplore.exe 1108 IEXPLORE.EXE 1108 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 1608 wrote to memory of 1892 1608 regsvr32.exe 26 PID 1608 wrote to memory of 1892 1608 regsvr32.exe 26 PID 1608 wrote to memory of 1892 1608 regsvr32.exe 26 PID 1608 wrote to memory of 1892 1608 regsvr32.exe 26 PID 1608 wrote to memory of 1892 1608 regsvr32.exe 26 PID 1608 wrote to memory of 1892 1608 regsvr32.exe 26 PID 1608 wrote to memory of 1892 1608 regsvr32.exe 26 PID 1976 wrote to memory of 1108 1976 iexplore.exe 29 PID 1976 wrote to memory of 1108 1976 iexplore.exe 29 PID 1976 wrote to memory of 1108 1976 iexplore.exe 29 PID 1976 wrote to memory of 1108 1976 iexplore.exe 29
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\85f7083f9fb16cdea99828ad14ee6cc81ce1f950c1cba3a497d4758206992ad5.dll1⤵
- Suspicious use of WriteProcessMemory
PID:1608 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\85f7083f9fb16cdea99828ad14ee6cc81ce1f950c1cba3a497d4758206992ad5.dll2⤵
- Adds Run key to start application
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:1892
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C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe" -Embedding1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1976 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1976 CREDAT:275457 /prefetch:22⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1108
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
601B
MD5804863f00e8bff1ee59ba3ca7c582c1d
SHA1cc8b9c5e4312181e05ada7d37add38435a4331b4
SHA2563ff303290e5f06de75a606adca55732cc88f09a54f5a1bf154bc58880ec78f6d
SHA512ed3ea902668db865150c9906cfedb284de7b1dc45f6e64ddfce5a52d189884772c4e9b628963964f1dff32860ec1dab189d39b1f6cd6139fd2e17f7ec665b7fe