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Analysis
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max time kernel
149s -
max time network
146s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
30/04/2024, 10:00
Static task
static1
Behavioral task
behavioral1
Sample
1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe
Resource
win10v2004-20240426-en
General
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Target
1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe
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Size
4.2MB
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MD5
3bd0da806f8530844c9ef011f697b022
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SHA1
c94c9b638a96a3d16438b123ccf5074305c10efa
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SHA256
1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b
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SHA512
7fadd8f4959b7c6fbc65414df3a44a31a7cf747c18173230a57d282d5229b472ef9e771b10c892e434f693eddb07abae03c2b746412e19cc54699d032adde743
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SSDEEP
98304:n/b+KJmiBMor9GQLaPpt0vK/+kpZQUDoPdzttRPI9D4Y5T6eALBIF:z+KAorFLaPpt06r/QU0Pd5tRu4YZ6eX
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral2/memory/1892-2-0x0000000003F00000-0x00000000047EB000-memory.dmp family_glupteba behavioral2/memory/1892-3-0x0000000000400000-0x0000000001DF4000-memory.dmp family_glupteba behavioral2/memory/1892-54-0x0000000000400000-0x0000000001DF4000-memory.dmp family_glupteba behavioral2/memory/1892-55-0x0000000003F00000-0x00000000047EB000-memory.dmp family_glupteba behavioral2/memory/2916-129-0x0000000000400000-0x0000000001DF4000-memory.dmp family_glupteba behavioral2/memory/3848-205-0x0000000000400000-0x0000000001DF4000-memory.dmp family_glupteba behavioral2/memory/3848-214-0x0000000000400000-0x0000000001DF4000-memory.dmp family_glupteba behavioral2/memory/3848-215-0x0000000000400000-0x0000000001DF4000-memory.dmp family_glupteba behavioral2/memory/3848-218-0x0000000000400000-0x0000000001DF4000-memory.dmp family_glupteba behavioral2/memory/3848-220-0x0000000000400000-0x0000000001DF4000-memory.dmp family_glupteba behavioral2/memory/3848-222-0x0000000000400000-0x0000000001DF4000-memory.dmp family_glupteba behavioral2/memory/3848-223-0x0000000000400000-0x0000000001DF4000-memory.dmp family_glupteba behavioral2/memory/3848-226-0x0000000000400000-0x0000000001DF4000-memory.dmp family_glupteba behavioral2/memory/3848-228-0x0000000000400000-0x0000000001DF4000-memory.dmp family_glupteba behavioral2/memory/3848-230-0x0000000000400000-0x0000000001DF4000-memory.dmp family_glupteba behavioral2/memory/3848-231-0x0000000000400000-0x0000000001DF4000-memory.dmp family_glupteba behavioral2/memory/3848-234-0x0000000000400000-0x0000000001DF4000-memory.dmp family_glupteba behavioral2/memory/3848-236-0x0000000000400000-0x0000000001DF4000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1948 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 3848 csrss.exe 4744 injector.exe 3588 windefender.exe 2472 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002aa38-208.dat upx behavioral2/memory/3588-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3588-213-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2472-216-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2472-219-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2994005945-4089876968-1367784197-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe Set value (str) \REGISTRY\USER\S-1-5-21-2994005945-4089876968-1367784197-1000\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 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 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 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe File created C:\Windows\rss\csrss.exe 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe File created C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\windefender.exe csrss.exe -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 1800 sc.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 2608 2916 WerFault.exe 87 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4484 schtasks.exe 1344 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2391 = "Aleutian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2161 = "Altai Daylight Time" 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2142 = "Transbaikal Standard Time" 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-201 = "US Mountain Daylight Time" 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-681 = "E. Australia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-241 = "Samoa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time" 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time" 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time" 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time" 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-891 = "Morocco Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\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\2a\52C64B7E\@tzres.dll,-912 = "Mauritius Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-12 = "Azores Standard Time" 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3142 = "South Sudan Standard Time" 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-572 = "China Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2492 = "Aus Central W. Standard Time" 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-412 = "E. Africa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1501 = "Turkey Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-372 = "Jerusalem Standard Time" 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-141 = "Canada Central Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-172 = "Central Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-251 = "Dateline Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-435 = "Georgian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1912 = "Russia TZ 10 Standard Time" 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-531 = "Sri Lanka Daylight Time" 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-72 = "Newfoundland Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-202 = "US Mountain Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time" 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-32 = "Mid-Atlantic Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time" 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2892 = "Sudan Standard Time" 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople 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\2a\52C64B7E\@tzres.dll,-1022 = "Bangladesh Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time" 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time" 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-772 = "Montevideo Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2941 = "Sao Tome Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-602 = "Taipei Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time" 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2520 powershell.exe 2520 powershell.exe 1892 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe 1892 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe 816 powershell.exe 816 powershell.exe 2916 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe 2916 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe 2916 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe 2916 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe 2916 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe 2916 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe 2916 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe 2916 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe 2916 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe 2916 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe 1348 powershell.exe 1348 powershell.exe 3132 powershell.exe 3132 powershell.exe 576 powershell.exe 576 powershell.exe 2164 powershell.exe 2164 powershell.exe 3188 powershell.exe 3188 powershell.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 3848 csrss.exe 3848 csrss.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 3848 csrss.exe 3848 csrss.exe 4744 injector.exe 4744 injector.exe 3848 csrss.exe 3848 csrss.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe 4744 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 2520 powershell.exe Token: SeDebugPrivilege 1892 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe Token: SeImpersonatePrivilege 1892 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe Token: SeDebugPrivilege 816 powershell.exe Token: SeDebugPrivilege 1348 powershell.exe Token: SeDebugPrivilege 3132 powershell.exe Token: SeDebugPrivilege 576 powershell.exe Token: SeDebugPrivilege 2164 powershell.exe Token: SeDebugPrivilege 3188 powershell.exe Token: SeSystemEnvironmentPrivilege 3848 csrss.exe Token: SeSecurityPrivilege 1800 sc.exe Token: SeSecurityPrivilege 1800 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 1892 wrote to memory of 2520 1892 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe 82 PID 1892 wrote to memory of 2520 1892 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe 82 PID 1892 wrote to memory of 2520 1892 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe 82 PID 2916 wrote to memory of 816 2916 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe 88 PID 2916 wrote to memory of 816 2916 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe 88 PID 2916 wrote to memory of 816 2916 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe 88 PID 2916 wrote to memory of 1080 2916 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe 90 PID 2916 wrote to memory of 1080 2916 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe 90 PID 1080 wrote to memory of 1948 1080 cmd.exe 92 PID 1080 wrote to memory of 1948 1080 cmd.exe 92 PID 2916 wrote to memory of 1348 2916 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe 93 PID 2916 wrote to memory of 1348 2916 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe 93 PID 2916 wrote to memory of 1348 2916 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe 93 PID 2916 wrote to memory of 3132 2916 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe 95 PID 2916 wrote to memory of 3132 2916 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe 95 PID 2916 wrote to memory of 3132 2916 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe 95 PID 2916 wrote to memory of 3848 2916 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe 97 PID 2916 wrote to memory of 3848 2916 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe 97 PID 2916 wrote to memory of 3848 2916 1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe 97 PID 3848 wrote to memory of 576 3848 csrss.exe 101 PID 3848 wrote to memory of 576 3848 csrss.exe 101 PID 3848 wrote to memory of 576 3848 csrss.exe 101 PID 3848 wrote to memory of 2164 3848 csrss.exe 107 PID 3848 wrote to memory of 2164 3848 csrss.exe 107 PID 3848 wrote to memory of 2164 3848 csrss.exe 107 PID 3848 wrote to memory of 3188 3848 csrss.exe 109 PID 3848 wrote to memory of 3188 3848 csrss.exe 109 PID 3848 wrote to memory of 3188 3848 csrss.exe 109 PID 3848 wrote to memory of 4744 3848 csrss.exe 111 PID 3848 wrote to memory of 4744 3848 csrss.exe 111 PID 3588 wrote to memory of 3944 3588 windefender.exe 117 PID 3588 wrote to memory of 3944 3588 windefender.exe 117 PID 3588 wrote to memory of 3944 3588 windefender.exe 117 PID 3944 wrote to memory of 1800 3944 cmd.exe 118 PID 3944 wrote to memory of 1800 3944 cmd.exe 118 PID 3944 wrote to memory of 1800 3944 cmd.exe 118 -
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\1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe"C:\Users\Admin\AppData\Local\Temp\1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1892 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2520
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C:\Users\Admin\AppData\Local\Temp\1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.exe"C:\Users\Admin\AppData\Local\Temp\1c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b.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:2916 -
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:816
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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:1080 -
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:1948
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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:1348
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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:3132
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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:3848 -
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:576
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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:4484
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4884
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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:2164
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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:3188
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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:4744
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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:1344
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3588 -
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:3944 -
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:1800
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2916 -s 9163⤵
- Program crash
PID:2608
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2916 -ip 29161⤵PID:1152
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2472
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
MD5324eaa383a641cbc01faa7f1ddf57a7d
SHA163324ed1caacdb0c8019aac5ceb55c860ce1523d
SHA256d0695dbd4a7915f03a0025ff05f9b786778dcdbf542f0098a178e2113c3807e3
SHA512e5f1403f1cbef8daeee83f92173c461fa7a406fa2e1729566f9eb07abdce2800c518e91a7ef3f484b1a94f4210f5352924642044236fabc98e42473aac4e34a3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD55ebd736e30290f821ab19b32fa330064
SHA1cd61e1e96d5dea03624fa67f30a3e8476121683d
SHA2564b9b562225900c693ebc526d942c615f35d9c80ea1d674279cb4eecda1665597
SHA512c61ddf81dc955843fbf7a0088ff5648a437c5a287611625b31ea626011f9c800a7f06c9de6a1060ed845b076a125d3e6925ebbf3ebe8ef942a743934211ada55
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD596f45f41f63439c1acf41e83927d6c42
SHA15041fee2c4746aeb81e1fd2afe8bfddf5221d779
SHA256495d79c5ff5f291653a665086dbb044b75d2c38d9d9dfaad3084fa59de1c6148
SHA512b8cd204edc8a49587b4458290777adc41f35a8795fc1ab6f13c7029923968802aa5c62b2c6aacb6bb90f3749faa79cc8519a32dbf2104ced39f877d11815035b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD537554c512f0e97e474a59d9c594f0e7c
SHA134f911c92d6a0a7770f9cd281be83e7504a2a86a
SHA25609829a129305be293e1dcf1e9adf91d0c2e2a452cbb0f782c7152c2e79ab6dda
SHA5124b7757c2681821338a2e4f3243069f7944ef4225927af8b8b96ee87fff1d58badb3ce3c58ca1e2614b5fca921fe29bd1a50378dffd67c3d5ef39e003d147f8d5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD504a14f6233cb83443979fe0afe03f7bd
SHA1729908a9de16d2bcb77f3891457d69e4d8dcdbbd
SHA256155c7d399c3b04b88e4f7d5efa981796e2ebe9c0ec3d3efb87cc8ebfaaa2e581
SHA5122e8797ddf2a28c9e4e51ddf80f20fcbee66a000aaaa5ede67994acfac06d0f1fd7806c409336a43f9db595744d5f95cff2c38453f147ed90151adc326ac698e0
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Filesize
4.2MB
MD53bd0da806f8530844c9ef011f697b022
SHA1c94c9b638a96a3d16438b123ccf5074305c10efa
SHA2561c87cffcaf1760a57fc5ea7507aef88776d9af03b029df0df1bd61284b2e488b
SHA5127fadd8f4959b7c6fbc65414df3a44a31a7cf747c18173230a57d282d5229b472ef9e771b10c892e434f693eddb07abae03c2b746412e19cc54699d032adde743
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec