Analysis
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max time kernel
151s -
max time network
131s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
29-12-2020 01:52
Static task
static1
Behavioral task
behavioral1
Sample
1016366f5a33b98470c591bda8b65c421c2bfc690aa9fd51d8049abd605c0070.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
1016366f5a33b98470c591bda8b65c421c2bfc690aa9fd51d8049abd605c0070.exe
Resource
win10v20201028
General
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Target
1016366f5a33b98470c591bda8b65c421c2bfc690aa9fd51d8049abd605c0070.exe
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Size
2.7MB
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MD5
4301b4d1cb937816ffe288401d8938bf
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SHA1
14126bcc7b1a7ec96114fb28a74c6a4d7e008246
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SHA256
1016366f5a33b98470c591bda8b65c421c2bfc690aa9fd51d8049abd605c0070
-
SHA512
82b0ebf62016f0b578384858b4d88fa97c70022a6e5e67871d93da5de2777553f949d40e6968ab9755cec4b48c8e40bdbc2ef4a1bd7a2db3ce52070e12b292bd
Malware Config
Extracted
C:\!!! ALL YOUR FILES ARE ENCRYPTED !!!.TXT
buran
kassmaster@danwin1210.me
kassmaster@tutanota.com
Signatures
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Buran
Ransomware-as-a-service based on the VegaLocker family first identified in 2019.
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Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Executes dropped EXE 2 IoCs
Processes:
csrss.execsrss.exepid process 744 csrss.exe 952 csrss.exe -
Deletes itself 1 IoCs
Processes:
notepad.exepid process 1088 notepad.exe -
Loads dropped DLL 2 IoCs
Processes:
1016366f5a33b98470c591bda8b65c421c2bfc690aa9fd51d8049abd605c0070.exepid process 1376 1016366f5a33b98470c591bda8b65c421c2bfc690aa9fd51d8049abd605c0070.exe 1376 1016366f5a33b98470c591bda8b65c421c2bfc690aa9fd51d8049abd605c0070.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
1016366f5a33b98470c591bda8b65c421c2bfc690aa9fd51d8049abd605c0070.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Windows\CurrentVersion\Run 1016366f5a33b98470c591bda8b65c421c2bfc690aa9fd51d8049abd605c0070.exe Set value (str) \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss.exe = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\csrss.exe\" -start" 1016366f5a33b98470c591bda8b65c421c2bfc690aa9fd51d8049abd605c0070.exe -
Enumerates connected drives 3 TTPs 24 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
csrss.exedescription ioc process File opened (read-only) \??\V: csrss.exe File opened (read-only) \??\S: csrss.exe File opened (read-only) \??\R: csrss.exe File opened (read-only) \??\Q: csrss.exe File opened (read-only) \??\L: csrss.exe File opened (read-only) \??\K: csrss.exe File opened (read-only) \??\Z: csrss.exe File opened (read-only) \??\Y: csrss.exe File opened (read-only) \??\J: csrss.exe File opened (read-only) \??\F: csrss.exe File opened (read-only) \??\X: csrss.exe File opened (read-only) \??\W: csrss.exe File opened (read-only) \??\E: csrss.exe File opened (read-only) \??\O: csrss.exe File opened (read-only) \??\N: csrss.exe File opened (read-only) \??\P: csrss.exe File opened (read-only) \??\M: csrss.exe File opened (read-only) \??\I: csrss.exe File opened (read-only) \??\H: csrss.exe File opened (read-only) \??\G: csrss.exe File opened (read-only) \??\B: csrss.exe File opened (read-only) \??\U: csrss.exe File opened (read-only) \??\T: csrss.exe File opened (read-only) \??\A: csrss.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs
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Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 6 geoiptool.com -
Drops file in Program Files directory 12667 IoCs
Processes:
csrss.exedescription ioc process File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\DataServices\+NewSQLServerConnection.odc.12B-487-530 csrss.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PUBSPAPR\ZPDIR49B.GIF.12B-487-530 csrss.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\IPMS.ICO csrss.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-core-multitabs_ja.jar csrss.exe File opened for modification C:\Program Files\Java\jre7\lib\images\cursors\win32_MoveNoDrop32x32.gif csrss.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0099187.JPG csrss.exe File opened for modification C:\Program Files\Java\jre7\lib\zi\Australia\Brisbane.12B-487-530 csrss.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\SO00513_.WMF.12B-487-530 csrss.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\SO02252_.WMF.12B-487-530 csrss.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\config\Modules\org-netbeans-core-io-ui.xml.12B-487-530 csrss.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\update_tracking\org-netbeans-core-execution.xml csrss.exe File opened for modification C:\Program Files\Java\jre7\lib\zi\America\North_Dakota\Center.12B-487-530 csrss.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\WB01744_.GIF.12B-487-530 csrss.exe File opened for modification C:\Program Files\Java\jre7\lib\zi\America\Costa_Rica csrss.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\PE00898_.WMF csrss.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\SL00286_.WMF csrss.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\update_tracking\com-sun-tools-visualvm-jmx.xml csrss.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\AN00010_.WMF.12B-487-530 csrss.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\HH00236_.WMF.12B-487-530 csrss.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0287018.WMF csrss.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\serialver.exe.12B-487-530 csrss.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Argentina\Jujuy.12B-487-530 csrss.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\modules\locale\com-sun-tools-visualvm-jvm_ja.jar csrss.exe File created C:\Program Files (x86)\Adobe\Reader 9.0\Resource\Font\PFM\!!! ALL YOUR FILES ARE ENCRYPTED !!!.TXT csrss.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\AN01218_.WMF csrss.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0233992.WMF csrss.exe File opened for modification C:\Program Files (x86)\Microsoft Office\MEDIA\OFFICE14\AUTOSHAP\BD18206_.WMF csrss.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Asia\Bangkok csrss.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\org-netbeans-modules-favorites.jar.12B-487-530 csrss.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32Info.exe csrss.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0287645.JPG csrss.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\Publisher\Backgrounds\WB02116_.GIF.12B-487-530 csrss.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PSRCHSRN.DAT.12B-487-530 csrss.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\FORMS\1033\EXITEML.ICO csrss.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\extcheck.exe.12B-487-530 csrss.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\Dawson.12B-487-530 csrss.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.emf.ecore.xmi_2.10.1.v20140901-1043.jar.12B-487-530 csrss.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0099160.JPG.12B-487-530 csrss.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0292248.WMF.12B-487-530 csrss.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0297269.WMF.12B-487-530 csrss.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\GrooveForms5\FormsStyles\BabyBlue\TAB_OFF.GIF.12B-487-530 csrss.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\modules\locale\com-sun-tools-visualvm-profiling_zh_CN.jar.12B-487-530 csrss.exe File opened for modification C:\Program Files\Java\jre7\lib\zi\Etc\GMT-5 csrss.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0093905.WMF.12B-487-530 csrss.exe File opened for modification C:\Program Files (x86)\Microsoft Office\MEDIA\OFFICE14\BULLETS\BD14514_.GIF csrss.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0099148.JPG.12B-487-530 csrss.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0182689.JPG csrss.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0382963.JPG.12B-487-530 csrss.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-modules-keyring-impl_zh_CN.jar.12B-487-530 csrss.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0382962.JPG.12B-487-530 csrss.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\PH02567J.JPG csrss.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\Certificates\groove.net\Components\SignedComponents.cer csrss.exe File opened for modification C:\Program Files\7-Zip\Lang\sq.txt.12B-487-530 csrss.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Performance\PreviousMenuButtonIcon.png csrss.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\etc\visualvm.conf csrss.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.rcp_4.3.100.v20141007-2301.jar csrss.exe File opened for modification C:\Program Files\VideoLAN\VLC\locale\hy\LC_MESSAGES\vlc.mo csrss.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0178460.JPG csrss.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\XLMACRO.CHM csrss.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\BabyGirl\flower_trans_MATTE_PAL.wmv csrss.exe File created C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\America\!!! ALL YOUR FILES ARE ENCRYPTED !!!.TXT csrss.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Pacific\Pitcairn csrss.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PUBSPAPR\PDIR9F.GIF csrss.exe File opened for modification C:\Program Files\VideoLAN\VLC\lua\http\requests\playlist_jstree.xml.12B-487-530 csrss.exe -
Interacts with shadow copies 2 TTPs 2 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
Processes:
vssadmin.exevssadmin.exepid process 1296 vssadmin.exe 864 vssadmin.exe -
Processes:
1016366f5a33b98470c591bda8b65c421c2bfc690aa9fd51d8049abd605c0070.execsrss.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349 1016366f5a33b98470c591bda8b65c421c2bfc690aa9fd51d8049abd605c0070.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 0f00000001000000140000003e8e6487f8fd27d322a269a71edaac5d57811286090000000100000034000000303206082b0601050507030106082b0601050507030206082b0601050507030406082b0601050507030306082b0601050507030853000000010000002600000030243022060c2b06010401b231010201050130123010060a2b0601040182373c0101030200c00b00000001000000180000004300b7004f00b7004d00b7004f00b7004400b7004f000000140000000100000014000000a0110a233e96f107ece2af29ef82a57fd030a4b41d00000001000000100000002e0d6875874a44c820912e85e964cfdb030000000100000014000000d1eb23a46d17d68fd92564c2f1f1601764d8e349200000000100000036040000308204323082031aa003020102020101300d06092a864886f70d0101050500307b310b3009060355040613024742311b301906035504080c1247726561746572204d616e636865737465723110300e06035504070c0753616c666f7264311a3018060355040a0c11436f6d6f646f204341204c696d697465643121301f06035504030c18414141204365727469666963617465205365727669636573301e170d3034303130313030303030305a170d3238313233313233353935395a307b310b3009060355040613024742311b301906035504080c1247726561746572204d616e636865737465723110300e06035504070c0753616c666f7264311a3018060355040a0c11436f6d6f646f204341204c696d697465643121301f06035504030c1841414120436572746966696361746520536572766963657330820122300d06092a864886f70d01010105000382010f003082010a0282010100be409df46ee1ea76871c4d45448ebe46c883069dc12afe181f8ee402faf3ab5d508a16310b9a06d0c57022cd492d5463ccb66e68460b53eacb4c24c0bc724eeaf115aef4549a120ac37ab23360e2da8955f32258f3dedccfef8386a28c944f9f68f29890468427c776bfe3cc352c8b5e07646582c048b0a891f9619f762050a891c766b5eb78620356f08a1a13ea31a31ea099fd38f6f62732586f07f56bb8fb142bafb7aaccd6635f738cda0599a838a8cb17783651ace99ef4783a8dcf0fd942e2980cab2f9f0e01deef9f9949f12ddfac744d1b98b547c5e529d1f99018c7629cbe83c7267b3e8a25c7c0dd9de6356810209d8fd8ded2c3849c0d5ee82fc90203010001a381c03081bd301d0603551d0e04160414a0110a233e96f107ece2af29ef82a57fd030a4b4300e0603551d0f0101ff040403020106300f0603551d130101ff040530030101ff307b0603551d1f047430723038a036a0348632687474703a2f2f63726c2e636f6d6f646f63612e636f6d2f414141436572746966696361746553657276696365732e63726c3036a034a0328630687474703a2f2f63726c2e636f6d6f646f2e6e65742f414141436572746966696361746553657276696365732e63726c300d06092a864886f70d010105050003820101000856fc02f09be8ffa4fad67bc64480ce4fc4c5f60058cca6b6bc1449680476e8e6ee5dec020f60d68d50184f264e01e3e6b0a5eebfbc745441bffdfc12b8c74f5af48960057f60b7054af3f6f1c2bfc4b97486b62d7d6bccd2f346dd2fc6e06ac3c334032c7d96dd5ac20ea70a99c1058bab0c2ff35c3acf6c37550987de53406c58effcb6ab656e04f61bdc3ce05a15c69ed9f15948302165036cece92173ec9b03a1e037ada015188ffaba02cea72ca910132cd4e50826ab229760f8905e74d4a29a53bdf2a968e0a26ec2d76cb1a30f9ebfeb68e756f2aef2e32b383a0981b56b85d7be2ded3f1ab7b263e2f5622c82d46a004150f139839f95e93696986e 1016366f5a33b98470c591bda8b65c421c2bfc690aa9fd51d8049abd605c0070.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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 1016366f5a33b98470c591bda8b65c421c2bfc690aa9fd51d8049abd605c0070.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349 csrss.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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 csrss.exe -
Suspicious use of AdjustPrivilegeToken 85 IoCs
Processes:
1016366f5a33b98470c591bda8b65c421c2bfc690aa9fd51d8049abd605c0070.exeWMIC.exeWMIC.exevssvc.exedescription pid process Token: SeDebugPrivilege 1376 1016366f5a33b98470c591bda8b65c421c2bfc690aa9fd51d8049abd605c0070.exe Token: SeDebugPrivilege 1376 1016366f5a33b98470c591bda8b65c421c2bfc690aa9fd51d8049abd605c0070.exe Token: SeIncreaseQuotaPrivilege 920 WMIC.exe Token: SeSecurityPrivilege 920 WMIC.exe Token: SeTakeOwnershipPrivilege 920 WMIC.exe Token: SeLoadDriverPrivilege 920 WMIC.exe Token: SeSystemProfilePrivilege 920 WMIC.exe Token: SeSystemtimePrivilege 920 WMIC.exe Token: SeProfSingleProcessPrivilege 920 WMIC.exe Token: SeIncBasePriorityPrivilege 920 WMIC.exe Token: SeCreatePagefilePrivilege 920 WMIC.exe Token: SeBackupPrivilege 920 WMIC.exe Token: SeRestorePrivilege 920 WMIC.exe Token: SeShutdownPrivilege 920 WMIC.exe Token: SeDebugPrivilege 920 WMIC.exe Token: SeSystemEnvironmentPrivilege 920 WMIC.exe Token: SeRemoteShutdownPrivilege 920 WMIC.exe Token: SeUndockPrivilege 920 WMIC.exe Token: SeManageVolumePrivilege 920 WMIC.exe Token: 33 920 WMIC.exe Token: 34 920 WMIC.exe Token: 35 920 WMIC.exe Token: SeIncreaseQuotaPrivilege 628 WMIC.exe Token: SeSecurityPrivilege 628 WMIC.exe Token: SeTakeOwnershipPrivilege 628 WMIC.exe Token: SeLoadDriverPrivilege 628 WMIC.exe Token: SeSystemProfilePrivilege 628 WMIC.exe Token: SeSystemtimePrivilege 628 WMIC.exe Token: SeProfSingleProcessPrivilege 628 WMIC.exe Token: SeIncBasePriorityPrivilege 628 WMIC.exe Token: SeCreatePagefilePrivilege 628 WMIC.exe Token: SeBackupPrivilege 628 WMIC.exe Token: SeRestorePrivilege 628 WMIC.exe Token: SeShutdownPrivilege 628 WMIC.exe Token: SeDebugPrivilege 628 WMIC.exe Token: SeSystemEnvironmentPrivilege 628 WMIC.exe Token: SeRemoteShutdownPrivilege 628 WMIC.exe Token: SeUndockPrivilege 628 WMIC.exe Token: SeManageVolumePrivilege 628 WMIC.exe Token: 33 628 WMIC.exe Token: 34 628 WMIC.exe Token: 35 628 WMIC.exe Token: SeBackupPrivilege 1640 vssvc.exe Token: SeRestorePrivilege 1640 vssvc.exe Token: SeAuditPrivilege 1640 vssvc.exe Token: SeIncreaseQuotaPrivilege 628 WMIC.exe Token: SeSecurityPrivilege 628 WMIC.exe Token: SeTakeOwnershipPrivilege 628 WMIC.exe Token: SeLoadDriverPrivilege 628 WMIC.exe Token: SeSystemProfilePrivilege 628 WMIC.exe Token: SeSystemtimePrivilege 628 WMIC.exe Token: SeProfSingleProcessPrivilege 628 WMIC.exe Token: SeIncBasePriorityPrivilege 628 WMIC.exe Token: SeCreatePagefilePrivilege 628 WMIC.exe Token: SeBackupPrivilege 628 WMIC.exe Token: SeRestorePrivilege 628 WMIC.exe Token: SeShutdownPrivilege 628 WMIC.exe Token: SeDebugPrivilege 628 WMIC.exe Token: SeSystemEnvironmentPrivilege 628 WMIC.exe Token: SeRemoteShutdownPrivilege 628 WMIC.exe Token: SeUndockPrivilege 628 WMIC.exe Token: SeManageVolumePrivilege 628 WMIC.exe Token: 33 628 WMIC.exe Token: 34 628 WMIC.exe -
Suspicious use of WriteProcessMemory 55 IoCs
Processes:
1016366f5a33b98470c591bda8b65c421c2bfc690aa9fd51d8049abd605c0070.execsrss.execmd.execmd.execmd.exedescription pid process target process PID 1376 wrote to memory of 744 1376 1016366f5a33b98470c591bda8b65c421c2bfc690aa9fd51d8049abd605c0070.exe csrss.exe PID 1376 wrote to memory of 744 1376 1016366f5a33b98470c591bda8b65c421c2bfc690aa9fd51d8049abd605c0070.exe csrss.exe PID 1376 wrote to memory of 744 1376 1016366f5a33b98470c591bda8b65c421c2bfc690aa9fd51d8049abd605c0070.exe csrss.exe PID 1376 wrote to memory of 744 1376 1016366f5a33b98470c591bda8b65c421c2bfc690aa9fd51d8049abd605c0070.exe csrss.exe PID 1376 wrote to memory of 1088 1376 1016366f5a33b98470c591bda8b65c421c2bfc690aa9fd51d8049abd605c0070.exe notepad.exe PID 1376 wrote to memory of 1088 1376 1016366f5a33b98470c591bda8b65c421c2bfc690aa9fd51d8049abd605c0070.exe notepad.exe PID 1376 wrote to memory of 1088 1376 1016366f5a33b98470c591bda8b65c421c2bfc690aa9fd51d8049abd605c0070.exe notepad.exe PID 1376 wrote to memory of 1088 1376 1016366f5a33b98470c591bda8b65c421c2bfc690aa9fd51d8049abd605c0070.exe notepad.exe PID 1376 wrote to memory of 1088 1376 1016366f5a33b98470c591bda8b65c421c2bfc690aa9fd51d8049abd605c0070.exe notepad.exe PID 1376 wrote to memory of 1088 1376 1016366f5a33b98470c591bda8b65c421c2bfc690aa9fd51d8049abd605c0070.exe notepad.exe PID 1376 wrote to memory of 1088 1376 1016366f5a33b98470c591bda8b65c421c2bfc690aa9fd51d8049abd605c0070.exe notepad.exe PID 744 wrote to memory of 1608 744 csrss.exe cmd.exe PID 744 wrote to memory of 1608 744 csrss.exe cmd.exe PID 744 wrote to memory of 1608 744 csrss.exe cmd.exe PID 744 wrote to memory of 1608 744 csrss.exe cmd.exe PID 744 wrote to memory of 1712 744 csrss.exe cmd.exe PID 744 wrote to memory of 1712 744 csrss.exe cmd.exe PID 744 wrote to memory of 1712 744 csrss.exe cmd.exe PID 744 wrote to memory of 1712 744 csrss.exe cmd.exe PID 744 wrote to memory of 1020 744 csrss.exe cmd.exe PID 744 wrote to memory of 1020 744 csrss.exe cmd.exe PID 744 wrote to memory of 1020 744 csrss.exe cmd.exe PID 744 wrote to memory of 1020 744 csrss.exe cmd.exe PID 744 wrote to memory of 964 744 csrss.exe cmd.exe PID 744 wrote to memory of 964 744 csrss.exe cmd.exe PID 744 wrote to memory of 964 744 csrss.exe cmd.exe PID 744 wrote to memory of 964 744 csrss.exe cmd.exe PID 744 wrote to memory of 860 744 csrss.exe cmd.exe PID 744 wrote to memory of 860 744 csrss.exe cmd.exe PID 744 wrote to memory of 860 744 csrss.exe cmd.exe PID 744 wrote to memory of 860 744 csrss.exe cmd.exe PID 744 wrote to memory of 1172 744 csrss.exe cmd.exe PID 744 wrote to memory of 1172 744 csrss.exe cmd.exe PID 744 wrote to memory of 1172 744 csrss.exe cmd.exe PID 744 wrote to memory of 1172 744 csrss.exe cmd.exe PID 744 wrote to memory of 952 744 csrss.exe csrss.exe PID 744 wrote to memory of 952 744 csrss.exe csrss.exe PID 744 wrote to memory of 952 744 csrss.exe csrss.exe PID 744 wrote to memory of 952 744 csrss.exe csrss.exe PID 860 wrote to memory of 1296 860 cmd.exe vssadmin.exe PID 860 wrote to memory of 1296 860 cmd.exe vssadmin.exe PID 860 wrote to memory of 1296 860 cmd.exe vssadmin.exe PID 860 wrote to memory of 1296 860 cmd.exe vssadmin.exe PID 1608 wrote to memory of 628 1608 cmd.exe WMIC.exe PID 1608 wrote to memory of 628 1608 cmd.exe WMIC.exe PID 1608 wrote to memory of 628 1608 cmd.exe WMIC.exe PID 1608 wrote to memory of 628 1608 cmd.exe WMIC.exe PID 1172 wrote to memory of 920 1172 cmd.exe WMIC.exe PID 1172 wrote to memory of 920 1172 cmd.exe WMIC.exe PID 1172 wrote to memory of 920 1172 cmd.exe WMIC.exe PID 1172 wrote to memory of 920 1172 cmd.exe WMIC.exe PID 1172 wrote to memory of 864 1172 cmd.exe vssadmin.exe PID 1172 wrote to memory of 864 1172 cmd.exe vssadmin.exe PID 1172 wrote to memory of 864 1172 cmd.exe vssadmin.exe PID 1172 wrote to memory of 864 1172 cmd.exe vssadmin.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\1016366f5a33b98470c591bda8b65c421c2bfc690aa9fd51d8049abd605c0070.exe"C:\Users\Admin\AppData\Local\Temp\1016366f5a33b98470c591bda8b65c421c2bfc690aa9fd51d8049abd605c0070.exe"1⤵
- Loads dropped DLL
- Adds Run key to start application
- Modifies system certificate store
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\csrss.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\csrss.exe" -start2⤵
- Executes dropped EXE
- Enumerates connected drives
- Modifies system certificate store
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /C wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /C bcdedit /set {default} recoveryenabled no3⤵
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures3⤵
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\csrss.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\csrss.exe" -agent 03⤵
- Executes dropped EXE
- Drops file in Program Files directory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\~temp001.bat3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /C vssadmin delete shadows /all /quiet3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
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C:\Windows\SysWOW64\notepad.exenotepad.exe2⤵
- Deletes itself
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3F26ED5DE6B4E859CCCA6035ECB8D9CBMD5
61466c45ced4d83183fdb25396d4031c
SHA128a0f84a224cfddee721d7aa7cc5b54176358108
SHA2561c3119bf6b52b905a989b256f6d40bf6d0150eb5485f5c416362a439e620e4f9
SHA512152535df0af05a287d4435e702c9fc86195e61296e825b9bd67311054524bbeeb898aa4b23393c5af5d4f5fa2471fbe56b3d85964036d22b5ba751c8b3423e9c
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\204C1AA6F6114E6A513754A2AB5760FA_0673414C08DE7F919AE3F6C4CC65AEEEMD5
21ef137d48d04fc9be98c2674223aa7d
SHA12c596c1c53112a535400e16fe124987aa665055c
SHA256d265ed9b6513b4a1bc4b7b26f3f59b1ed4d0cf1aeb37bc0d38ec91b4658cc0e0
SHA512f95cf62b52edf668adf1779d07bde1c68c29b848ec713270111b3fa2bc01edbdbbc5cfc958229c6e92567f4196285e935a2f922bbdcac80f9103ba15e832491a
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711EMD5
9d7369bfa72ae89d1d752ba17df6c22e
SHA1ec6dad338b059d7bffbf47f84cf3c638226a0d82
SHA2568ba91b47832e7c92ce4aec0255ae6511d12f7f92201d8d1db21d37f81a190030
SHA5123cc58981fdaffa95022fbf13d7b0535ef0d1700fffda235a46902f9b9d9ac83458d8444aedae99b8392ee62d0151eea5f67d991bf538aa0919fcd5b6f7ae41f5
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3F26ED5DE6B4E859CCCA6035ECB8D9CBMD5
bfa8f146b8e4b0bc602a3b911b74a10d
SHA183ae143ff3a8afc7fab91ddb7e67104696518dfc
SHA25626b1f0df9830c129deedd3eddf3f98c8d84c442e65ed74de4ca4b39ba5c405fa
SHA51211c1a23b71075c03313d9ff5f2ce8cb92250fe3048499c8c90ce0be182a0bb73a9a67fd1865eae36418e5f5aea8b7fdf47462b9323933feeb68452c233995c28
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\204C1AA6F6114E6A513754A2AB5760FA_0673414C08DE7F919AE3F6C4CC65AEEEMD5
cbdff8e3f8930080454e4af43c250d67
SHA16a2f793c8fea7035c4f0475bf17ae83cae12a88f
SHA256e336d536b227024d4cfe5d20077405444e3f523e013fd6b5e22837269c1ffe5d
SHA5122ce4f3824b575fac3642e85db705c030a18b01be94bd839fcd02339f1ae924d96ddf62a045f1d8aa1b2fb27fa04a746d50472238fd420fcb8350d3439066fb90
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015MD5
1848c039b553e41b866afb3b37181c9f
SHA19971c22127f630edef3350e420cdfd53c0eb738a
SHA2564cdd2051c8fda214d16b4fea38f15cecb4e9ac987ebc64b927925dcf164bbf26
SHA512bbcb253997f1182f2ce1d039bd0f29cef833a2923844b5ac1dbe3d718035f03590fa993872226910e9d257ff2d1d4d0d53e52d19fc4e3be1a874c87bb2e33e06
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711EMD5
ad44806829628106b34b720e2ea3eba4
SHA1d18682a8ae454846a2f7daf972b55d91b0627266
SHA2560687275b365c90f0a10130d0bb5cc5723e2527ab81f81792ea332a0358ca3db9
SHA5121cc8894f2745b88e2bbc24025b65666bb5fd4a82d2d12bbb60313fc5167983da3d23897bc186d97a4f82e63b7d4d0bea0190757209b1c2b08b22f251a599e735
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C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\3O0J2C38\CJV9S6QC.htmMD5
8615e70875c2cc0b9db16027b9adf11d
SHA14ed62cf405311c0ff562a3c59334a15ddc4f1bf9
SHA256da96949ba6b0567343f144486505c8c8fa1d892fd88c9cbc3ef3d751a570724d
SHA512cd9dfc88dc2af9438b7d6b618d1b62029b3bdf739fc4daa5b37397afd12c4528561b3bf2fc3f3f2adf3fd1f582d5524332441fd30248fcd078e41aa91e17cb73
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C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\7ISB2KAC\OM5ATRI4.htmMD5
b1cd7c031debba3a5c77b39b6791c1a7
SHA1e5d91e14e9c685b06f00e550d9e189deb2075f76
SHA25657ba053f075e0b80f747f3102ed985687c16a8754d109e7c4d33633269a36aaa
SHA512d2bbefdc1effb52a38964c4cec5990a5a226248eca36f99e446c0c5704436f666bf1cb514e73b8991411d497d3325ecc646cbd5065c364e92ab6b9c5f1ad4a72
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C:\Users\Admin\AppData\Local\Temp\~temp001.batMD5
ef572e2c7b1bbd57654b36e8dcfdc37a
SHA1b84c4db6d0dfd415c289d0c8ae099aea4001e3b7
SHA256e6e609db3f387f42bfd16dd9e5695ddc2b73d86ae12baf4f0dfc4edda4a96a64
SHA512b8c014b242e8e8f42da37b75fe96c52cd25ebd366d0b5103bcba5ac041806d13142a62351edecdee583d494d2a120f9b330f6229b1b5fe820e1c7d98981089e9
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\csrss.exeMD5
4301b4d1cb937816ffe288401d8938bf
SHA114126bcc7b1a7ec96114fb28a74c6a4d7e008246
SHA2561016366f5a33b98470c591bda8b65c421c2bfc690aa9fd51d8049abd605c0070
SHA51282b0ebf62016f0b578384858b4d88fa97c70022a6e5e67871d93da5de2777553f949d40e6968ab9755cec4b48c8e40bdbc2ef4a1bd7a2db3ce52070e12b292bd
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\csrss.exeMD5
4301b4d1cb937816ffe288401d8938bf
SHA114126bcc7b1a7ec96114fb28a74c6a4d7e008246
SHA2561016366f5a33b98470c591bda8b65c421c2bfc690aa9fd51d8049abd605c0070
SHA51282b0ebf62016f0b578384858b4d88fa97c70022a6e5e67871d93da5de2777553f949d40e6968ab9755cec4b48c8e40bdbc2ef4a1bd7a2db3ce52070e12b292bd
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\csrss.exeMD5
4301b4d1cb937816ffe288401d8938bf
SHA114126bcc7b1a7ec96114fb28a74c6a4d7e008246
SHA2561016366f5a33b98470c591bda8b65c421c2bfc690aa9fd51d8049abd605c0070
SHA51282b0ebf62016f0b578384858b4d88fa97c70022a6e5e67871d93da5de2777553f949d40e6968ab9755cec4b48c8e40bdbc2ef4a1bd7a2db3ce52070e12b292bd
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\Users\Admin\AppData\Roaming\Microsoft\Windows\csrss.exeMD5
4301b4d1cb937816ffe288401d8938bf
SHA114126bcc7b1a7ec96114fb28a74c6a4d7e008246
SHA2561016366f5a33b98470c591bda8b65c421c2bfc690aa9fd51d8049abd605c0070
SHA51282b0ebf62016f0b578384858b4d88fa97c70022a6e5e67871d93da5de2777553f949d40e6968ab9755cec4b48c8e40bdbc2ef4a1bd7a2db3ce52070e12b292bd
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\Users\Admin\AppData\Roaming\Microsoft\Windows\csrss.exeMD5
4301b4d1cb937816ffe288401d8938bf
SHA114126bcc7b1a7ec96114fb28a74c6a4d7e008246
SHA2561016366f5a33b98470c591bda8b65c421c2bfc690aa9fd51d8049abd605c0070
SHA51282b0ebf62016f0b578384858b4d88fa97c70022a6e5e67871d93da5de2777553f949d40e6968ab9755cec4b48c8e40bdbc2ef4a1bd7a2db3ce52070e12b292bd
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memory/628-29-0x0000000000000000-mapping.dmp
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memory/744-5-0x0000000000000000-mapping.dmp
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memory/860-22-0x0000000000000000-mapping.dmp
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memory/864-31-0x0000000000000000-mapping.dmp
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memory/920-30-0x0000000000000000-mapping.dmp
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memory/952-25-0x0000000000000000-mapping.dmp
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memory/964-21-0x0000000000000000-mapping.dmp
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memory/1020-20-0x0000000000000000-mapping.dmp
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memory/1088-9-0x0000000000000000-mapping.dmp
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memory/1088-7-0x00000000000A0000-0x00000000000A1000-memory.dmpFilesize
4KB
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memory/1172-23-0x0000000000000000-mapping.dmp
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memory/1296-28-0x0000000000000000-mapping.dmp
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memory/1520-2-0x000007FEF7120000-0x000007FEF739A000-memory.dmpFilesize
2.5MB
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memory/1608-18-0x0000000000000000-mapping.dmp
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memory/1712-19-0x0000000000000000-mapping.dmp