Analysis
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max time kernel
222s -
max time network
274s -
platform
windows10-2004_x64 -
resource
win10v2004-20230221-en -
resource tags
arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system -
submitted
31-03-2023 14:46
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
http://us-v20.events.data.microsoft.com
Resource
win10v2004-20230221-en
General
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Target
http://us-v20.events.data.microsoft.com
Malware Config
Signatures
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description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31024132" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{24651DC2-CFF7-11ED-8227-DE65D3B59762} = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3895699859" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31024131" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31024131" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3895699859" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "283231781" IEXPLORE.EXE -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 1992 iexplore.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 1992 iexplore.exe 1992 iexplore.exe 1000 IEXPLORE.EXE 1000 IEXPLORE.EXE 1000 IEXPLORE.EXE 1000 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1992 wrote to memory of 1000 1992 iexplore.exe 80 PID 1992 wrote to memory of 1000 1992 iexplore.exe 80 PID 1992 wrote to memory of 1000 1992 iexplore.exe 80
Processes
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C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe" http://us-v20.events.data.microsoft.com1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1992 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1992 CREDAT:17410 /prefetch:22⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1000
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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
MD5bdbbd793778777706223b00a4ea24ed0
SHA1bf09527cebe8906bfe6aa1e885bc9fb1b3ec54e4
SHA2568b1034038298faf34d3f580c1ded7212f40d146de7e62cff20826c8b53f80c36
SHA5127397d981e28bee91dd0e08c3a38444d8524204118548e8db810f5a277cbb08c20a64350063cf36ee4a943edba249f1d0ed350d4cfbc0671461cf27c2534c1f13
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize434B
MD50cadae58687c1c64dc328086afed24e4
SHA1445657f270db7ad88f01d104e7af01b16d46d318
SHA256950a4576b78b8fac50b4d495e4a71902e553a3eddca01fbdff20ea9650af06cb
SHA51269c8660d47d2457bc32048c7309700ba726f3409496a2406aeef36d3c86e23e66bfd904681773c4ee996f36baa34ed4d7500224f3a5d674ab08a5af1c666864e