Analysis
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max time kernel
149s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240221-en -
resource tags
arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system -
submitted
04-04-2024 23:19
Static task
static1
Behavioral task
behavioral1
Sample
75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe
Resource
win10v2004-20231215-en
General
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Target
75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe
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Size
4.1MB
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MD5
05c433cc47e6866355b379e69e152b91
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SHA1
6c3ccffb370a03fcf58d3c377268a6d5df5b1e41
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SHA256
75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774
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SHA512
8232791b000d560cdbfbacd367a7cdb7e7fc56ed9cc5b2529c5c520f4cf0755e922e564626b91bb3055e39d8ff7a54e86abe668f8a002afa6f2e93c916e7d2ae
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SSDEEP
98304:yl4yxm3XWe9PuTiK1mjHigJm+F9pvggMDWt0Z4RVYt+rtvO+:g44mV9PuT3crigRDggMDWt0ZYVYtIP
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral2/memory/72-2-0x0000000005350000-0x0000000005C3B000-memory.dmp family_glupteba behavioral2/memory/72-3-0x0000000000400000-0x0000000002F3F000-memory.dmp family_glupteba behavioral2/memory/72-52-0x0000000000400000-0x0000000002F3F000-memory.dmp family_glupteba behavioral2/memory/72-54-0x0000000005350000-0x0000000005C3B000-memory.dmp family_glupteba behavioral2/memory/3160-56-0x0000000000400000-0x0000000002F3F000-memory.dmp family_glupteba behavioral2/memory/3160-139-0x0000000000400000-0x0000000002F3F000-memory.dmp family_glupteba behavioral2/memory/3160-149-0x0000000000400000-0x0000000002F3F000-memory.dmp family_glupteba behavioral2/memory/1612-213-0x0000000000400000-0x0000000002F3F000-memory.dmp family_glupteba behavioral2/memory/1612-248-0x0000000000400000-0x0000000002F3F000-memory.dmp family_glupteba behavioral2/memory/1612-259-0x0000000000400000-0x0000000002F3F000-memory.dmp family_glupteba behavioral2/memory/1612-263-0x0000000000400000-0x0000000002F3F000-memory.dmp family_glupteba behavioral2/memory/1612-267-0x0000000000400000-0x0000000002F3F000-memory.dmp family_glupteba behavioral2/memory/1612-271-0x0000000000400000-0x0000000002F3F000-memory.dmp family_glupteba behavioral2/memory/1612-275-0x0000000000400000-0x0000000002F3F000-memory.dmp family_glupteba behavioral2/memory/1612-279-0x0000000000400000-0x0000000002F3F000-memory.dmp family_glupteba behavioral2/memory/1612-283-0x0000000000400000-0x0000000002F3F000-memory.dmp family_glupteba behavioral2/memory/1612-287-0x0000000000400000-0x0000000002F3F000-memory.dmp family_glupteba behavioral2/memory/1612-291-0x0000000000400000-0x0000000002F3F000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2440 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 1612 csrss.exe 4380 injector.exe 388 windefender.exe 1148 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a7ad-251.dat upx behavioral2/memory/388-256-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1148-260-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1148-268-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4181651180-3163410697-3990547336-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe Set value (str) \REGISTRY\USER\S-1-5-21-4181651180-3163410697-3990547336-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
description ioc Process File opened for modification \??\WinMonFS csrss.exe -
Drops file in System32 directory 7 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File created C:\Windows\rss\csrss.exe 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 2848 sc.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2340 schtasks.exe 3460 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2161 = "Altai Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-261 = "GMT Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1862 = "Russia TZ 6 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-92 = "Pacific SA Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2142 = "Transbaikal Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-372 = "Jerusalem Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-242 = "Samoa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-392 = "Arab Standard Time" 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time" 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time" 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-462 = "Afghanistan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-391 = "Arab Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2451 = "Saint Pierre Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-2751 = "Tomsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-282 = "Central Europe Standard Time" 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time" 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-262 = "GMT Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-211 = "Pacific Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-191 = "Mountain Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-132 = "US Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time" 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-651 = "AUS Central Daylight Time" 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-271 = "Greenwich Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-1472 = "Magadan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-742 = "New Zealand Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time" 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-932 = "Coordinated Universal Time" 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-141 = "Canada Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-281 = "Central Europe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-362 = "GTB Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-31 = "Mid-Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time" 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time" 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-721 = "Central Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@tzres.dll,-381 = "South Africa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-292 = "Central European Standard Time" 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time" 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)" 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time" 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3132 powershell.exe 3132 powershell.exe 72 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe 72 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe 1560 powershell.exe 1560 powershell.exe 3160 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe 3160 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe 3160 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe 3160 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe 3160 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe 3160 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe 3160 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe 3160 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe 3160 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe 3160 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe 392 powershell.exe 392 powershell.exe 2620 powershell.exe 2620 powershell.exe 3180 powershell.exe 3180 powershell.exe 2804 powershell.exe 2804 powershell.exe 4776 powershell.exe 4776 powershell.exe 4380 injector.exe 4380 injector.exe 4380 injector.exe 4380 injector.exe 4380 injector.exe 4380 injector.exe 1612 csrss.exe 1612 csrss.exe 4380 injector.exe 4380 injector.exe 4380 injector.exe 4380 injector.exe 4380 injector.exe 4380 injector.exe 1612 csrss.exe 1612 csrss.exe 4380 injector.exe 4380 injector.exe 4380 injector.exe 4380 injector.exe 1612 csrss.exe 1612 csrss.exe 4380 injector.exe 4380 injector.exe 4380 injector.exe 4380 injector.exe 4380 injector.exe 4380 injector.exe 4380 injector.exe 4380 injector.exe 4380 injector.exe 4380 injector.exe 4380 injector.exe 4380 injector.exe 4380 injector.exe 4380 injector.exe 4380 injector.exe 4380 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 3132 powershell.exe Token: SeDebugPrivilege 72 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe Token: SeImpersonatePrivilege 72 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe Token: SeDebugPrivilege 1560 powershell.exe Token: SeDebugPrivilege 392 powershell.exe Token: SeDebugPrivilege 2620 powershell.exe Token: SeDebugPrivilege 3180 powershell.exe Token: SeDebugPrivilege 2804 powershell.exe Token: SeDebugPrivilege 4776 powershell.exe Token: SeSystemEnvironmentPrivilege 1612 csrss.exe Token: SeSecurityPrivilege 2848 sc.exe Token: SeSecurityPrivilege 2848 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 72 wrote to memory of 3132 72 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe 79 PID 72 wrote to memory of 3132 72 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe 79 PID 72 wrote to memory of 3132 72 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe 79 PID 3160 wrote to memory of 1560 3160 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe 84 PID 3160 wrote to memory of 1560 3160 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe 84 PID 3160 wrote to memory of 1560 3160 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe 84 PID 3160 wrote to memory of 4748 3160 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe 86 PID 3160 wrote to memory of 4748 3160 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe 86 PID 4748 wrote to memory of 2440 4748 cmd.exe 88 PID 4748 wrote to memory of 2440 4748 cmd.exe 88 PID 3160 wrote to memory of 392 3160 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe 89 PID 3160 wrote to memory of 392 3160 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe 89 PID 3160 wrote to memory of 392 3160 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe 89 PID 3160 wrote to memory of 2620 3160 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe 91 PID 3160 wrote to memory of 2620 3160 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe 91 PID 3160 wrote to memory of 2620 3160 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe 91 PID 3160 wrote to memory of 1612 3160 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe 93 PID 3160 wrote to memory of 1612 3160 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe 93 PID 3160 wrote to memory of 1612 3160 75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe 93 PID 1612 wrote to memory of 3180 1612 csrss.exe 94 PID 1612 wrote to memory of 3180 1612 csrss.exe 94 PID 1612 wrote to memory of 3180 1612 csrss.exe 94 PID 1612 wrote to memory of 2804 1612 csrss.exe 100 PID 1612 wrote to memory of 2804 1612 csrss.exe 100 PID 1612 wrote to memory of 2804 1612 csrss.exe 100 PID 1612 wrote to memory of 4776 1612 csrss.exe 102 PID 1612 wrote to memory of 4776 1612 csrss.exe 102 PID 1612 wrote to memory of 4776 1612 csrss.exe 102 PID 1612 wrote to memory of 4380 1612 csrss.exe 104 PID 1612 wrote to memory of 4380 1612 csrss.exe 104 PID 388 wrote to memory of 3392 388 windefender.exe 110 PID 388 wrote to memory of 3392 388 windefender.exe 110 PID 388 wrote to memory of 3392 388 windefender.exe 110 PID 3392 wrote to memory of 2848 3392 cmd.exe 111 PID 3392 wrote to memory of 2848 3392 cmd.exe 111 PID 3392 wrote to memory of 2848 3392 cmd.exe 111 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe"C:\Users\Admin\AppData\Local\Temp\75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:72 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3132
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C:\Users\Admin\AppData\Local\Temp\75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe"C:\Users\Admin\AppData\Local\Temp\75446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774.exe"2⤵
- Adds Run key to start application
- Checks for VirtualBox DLLs, possible anti-VM trick
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3160 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1560
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C:\Windows\system32\cmd.exeC:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"3⤵
- Suspicious use of WriteProcessMemory
PID:4748 -
C:\Windows\system32\netsh.exenetsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes4⤵
- Modifies Windows Firewall
PID:2440
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:392
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2620
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C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe3⤵
- Executes dropped EXE
- Adds Run key to start application
- Manipulates WinMonFS driver.
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1612 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3180
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:2340
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2916
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2804
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4776
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C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exeC:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe taskmgr.exe C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:4380
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
PID:3460
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:388 -
C:\Windows\SysWOW64\cmd.execmd.exe /C sc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)5⤵
- Suspicious use of WriteProcessMemory
PID:3392 -
C:\Windows\SysWOW64\sc.exesc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)6⤵
- Launches sc.exe
- Suspicious use of AdjustPrivilegeToken
PID:2848
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1148
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD5ac4917a885cf6050b1a483e4bc4d2ea5
SHA1b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA256e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
SHA512092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ae25f7cbd9d099871ad79df4f539e2e7
SHA1cb7aa414e80f898b1ee4bae0715f6c15a61ad9bb
SHA256a12c1fda8839c96d2f436daafe82365479cd7686c54c580ac75115ed26a3f5fc
SHA512f98175600277d0ea5c804e308e4aee2006d0e29f0d2cd04f245169d1677416175713ad22e4fb20de7baf6d4337965fd28d8f6f9028629220bd3c96d7f301703a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c11dcc0b33394b7db7fbdfa0ec8d7199
SHA1ec7a05fa7bf15d696e82b91724b48aff07607dab
SHA2567435678ba13a8206d2ee39139cf38eaf9dbf843f32104b6044041ba87bfcb73c
SHA512c74700df4193ff7d2506da130e4b6230683da5929faa69934bd7276702c3cb97419fe902ab316f1bd825efc927b8b039770e42d2c3dbeac6232cd4b171dcb9a7
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a9836d2e51ce98c12c149dd567e5730a
SHA1b562cb845d43875084ccc0cd903d2a56004fdea0
SHA256827ff19154d3284df98194819a551eb4ba2b11aafbf981f14720d9717e186f19
SHA51208a06b1b9cd3a4611e97c767b1063e9103485ec7e2ec33215e6f80587af744c44ef49ccbe8a1cb4f1d4820ff2732f49a2b02f2a7b3b84bc20dd42d6da2957e18
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b7a44c74ab175e9acb35f8a15e15645e
SHA11ff401159451571f7a4dbc1f81b41c221459813d
SHA25653755ee2414deba2af57d7da95544022ed87be36f005fbf0d61604c865e205e2
SHA5126d0bdce5f1c4694309d3df9bb73bc2d65a462af6a933face7eacd73ee61d29473ee688c5c5ab3098dd0b17d5cbc1d274456f5f8a2a3540ef5aff58083c88b000
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD544443f220955e16ca7ff9f9721cd4297
SHA1f80c367b4eba5f0a114af6efeb485908826d7485
SHA25697812aac6df6afd32483add126be0ab50e93c37b32f8f20fa1cfe3fcd32098f0
SHA512d59f9d793d72d8b790d158455d296d22ba79fedc3613cb7c9397983e8f9b288081ee60a85b245947eb2dfe26d15da25fe35993769a2f3516248eb717c8a390af
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Filesize
4.1MB
MD505c433cc47e6866355b379e69e152b91
SHA16c3ccffb370a03fcf58d3c377268a6d5df5b1e41
SHA25675446deeb8fc3be120848b2388c41bf98292118b852b1c2e73db37c85358a774
SHA5128232791b000d560cdbfbacd367a7cdb7e7fc56ed9cc5b2529c5c520f4cf0755e922e564626b91bb3055e39d8ff7a54e86abe668f8a002afa6f2e93c916e7d2ae
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec