Analysis
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max time kernel
149s -
max time network
149s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
19-05-2024 01:31
Static task
static1
Behavioral task
behavioral1
Sample
4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe
Resource
win10v2004-20240426-en
General
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Target
4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe
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Size
4.1MB
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MD5
79c4b7b79965a19b16a9dc7371644238
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SHA1
17771e84fba4c0f9097bec8c3f93b2ea43795ddd
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SHA256
4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4
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SHA512
99bc7718b9d492b1a22023586ac7facbd2385d0b85d723efdf045d5b6ba336058c1cc414ab812bf042034faf0c5bf9743093426cdc0eeb68b27628083135542a
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SSDEEP
98304:yf+oTi6061rsx4yGF2uQjPQS21lHMnsqkLrDDcuTdH2a0g7PF8:Bos8riuQnYS21lsngzdH/0g6
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral2/memory/3272-2-0x0000000004880000-0x000000000516B000-memory.dmp family_glupteba behavioral2/memory/3272-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3272-99-0x0000000004880000-0x000000000516B000-memory.dmp family_glupteba behavioral2/memory/3272-98-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/2384-124-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/3272-155-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2924-200-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/2924-210-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/2924-213-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/2924-216-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/2924-219-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/2924-222-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/2924-225-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/2924-228-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/2924-231-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/2924-234-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/2924-237-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba behavioral2/memory/2924-240-0x0000000000400000-0x0000000002732000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3440 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 2924 csrss.exe 1528 injector.exe 4476 windefender.exe 2108 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a9ff-204.dat upx behavioral2/memory/4476-206-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2108-208-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4476-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2108-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2108-218-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2108-227-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3107365284-1576850094-161165143-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe Set value (str) \REGISTRY\USER\S-1-5-21-3107365284-1576850094-161165143-1000\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\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 File created 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 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe File created C:\Windows\rss\csrss.exe 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.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 656 sc.exe -
pid Process 3516 powershell.exe 4772 powershell.exe 1392 powershell.exe 1532 powershell.exe 3564 powershell.exe 884 powershell.exe 1032 powershell.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 4540 schtasks.exe 3176 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,-542 = "Myanmar Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-502 = "Nepal Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1862 = "Russia TZ 6 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time" 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2871 = "Magallanes Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-432 = "Iran Standard Time" 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)" 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.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,-91 = "Pacific SA Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-561 = "SE Asia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time" 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates 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\@tzres.dll,-12 = "Azores Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-282 = "Central Europe Standard Time" 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-271 = "Greenwich Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-31 = "Mid-Atlantic Daylight Time" windefender.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,-2391 = "Aleutian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-272 = "Greenwich Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time" 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-261 = "GMT Daylight Time" 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-652 = "AUS Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time" 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-671 = "AUS Eastern Daylight Time" 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-282 = "Central Europe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1471 = "Magadan Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 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\@tzres.dll,-792 = "SA Western Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time" 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time" 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time" 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-104 = "Central Brazilian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time" 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2391 = "Aleutian Daylight Time" 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.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,-122 = "SA Pacific Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-592 = "Malay Peninsula Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2592 = "Tocantins Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time" 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3516 powershell.exe 3516 powershell.exe 3272 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe 3272 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe 4772 powershell.exe 4772 powershell.exe 2384 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe 2384 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe 2384 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe 2384 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe 2384 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe 2384 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe 2384 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe 2384 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe 2384 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe 2384 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe 1392 powershell.exe 1392 powershell.exe 1532 powershell.exe 1532 powershell.exe 3564 powershell.exe 3564 powershell.exe 884 powershell.exe 884 powershell.exe 1032 powershell.exe 1032 powershell.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 2924 csrss.exe 2924 csrss.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 2924 csrss.exe 2924 csrss.exe 1528 injector.exe 1528 injector.exe 2924 csrss.exe 2924 csrss.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe 1528 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 3516 powershell.exe Token: SeDebugPrivilege 3272 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe Token: SeImpersonatePrivilege 3272 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe Token: SeDebugPrivilege 4772 powershell.exe Token: SeDebugPrivilege 1392 powershell.exe Token: SeDebugPrivilege 1532 powershell.exe Token: SeDebugPrivilege 3564 powershell.exe Token: SeDebugPrivilege 884 powershell.exe Token: SeDebugPrivilege 1032 powershell.exe Token: SeSystemEnvironmentPrivilege 2924 csrss.exe Token: SeSecurityPrivilege 656 sc.exe Token: SeSecurityPrivilege 656 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 3272 wrote to memory of 3516 3272 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe 78 PID 3272 wrote to memory of 3516 3272 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe 78 PID 3272 wrote to memory of 3516 3272 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe 78 PID 2384 wrote to memory of 4772 2384 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe 83 PID 2384 wrote to memory of 4772 2384 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe 83 PID 2384 wrote to memory of 4772 2384 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe 83 PID 2384 wrote to memory of 2412 2384 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe 85 PID 2384 wrote to memory of 2412 2384 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe 85 PID 2412 wrote to memory of 3440 2412 cmd.exe 87 PID 2412 wrote to memory of 3440 2412 cmd.exe 87 PID 2384 wrote to memory of 1392 2384 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe 88 PID 2384 wrote to memory of 1392 2384 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe 88 PID 2384 wrote to memory of 1392 2384 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe 88 PID 2384 wrote to memory of 1532 2384 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe 90 PID 2384 wrote to memory of 1532 2384 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe 90 PID 2384 wrote to memory of 1532 2384 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe 90 PID 2384 wrote to memory of 2924 2384 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe 92 PID 2384 wrote to memory of 2924 2384 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe 92 PID 2384 wrote to memory of 2924 2384 4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe 92 PID 2924 wrote to memory of 3564 2924 csrss.exe 93 PID 2924 wrote to memory of 3564 2924 csrss.exe 93 PID 2924 wrote to memory of 3564 2924 csrss.exe 93 PID 2924 wrote to memory of 884 2924 csrss.exe 99 PID 2924 wrote to memory of 884 2924 csrss.exe 99 PID 2924 wrote to memory of 884 2924 csrss.exe 99 PID 2924 wrote to memory of 1032 2924 csrss.exe 101 PID 2924 wrote to memory of 1032 2924 csrss.exe 101 PID 2924 wrote to memory of 1032 2924 csrss.exe 101 PID 2924 wrote to memory of 1528 2924 csrss.exe 103 PID 2924 wrote to memory of 1528 2924 csrss.exe 103 PID 4476 wrote to memory of 4520 4476 windefender.exe 109 PID 4476 wrote to memory of 4520 4476 windefender.exe 109 PID 4476 wrote to memory of 4520 4476 windefender.exe 109 PID 4520 wrote to memory of 656 4520 cmd.exe 110 PID 4520 wrote to memory of 656 4520 cmd.exe 110 PID 4520 wrote to memory of 656 4520 cmd.exe 110 -
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\4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe"C:\Users\Admin\AppData\Local\Temp\4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3272 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3516
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C:\Users\Admin\AppData\Local\Temp\4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.exe"C:\Users\Admin\AppData\Local\Temp\4a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4.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:2384 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4772
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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:2412 -
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:3440
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1392
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1532
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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:2924 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3564
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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:3176
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1964
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:884
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1032
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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:1528
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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:4540
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4476 -
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:4520 -
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:656
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2108
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
MD5d0c46cad6c0778401e21910bd6b56b70
SHA17be418951ea96326aca445b8dfe449b2bfa0dca6
SHA2569600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
SHA512057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a41f223c087bcdc4bb7b85c0e2b483d6
SHA17c0e83c113e1e6437c88a6e8f46ffb3911cd9606
SHA256619dc2ef6c7494d6f43e5b71f7a228a661d1c4fb6b46667488ee72c124507cec
SHA51242ee3ada54905ae227131eb28d3f72717668d3225f0a499b26e87f64ffa46735ba3357ac0f8ce8029905027d1c4c6d459d3e099a05f57c242172ee76c1af51a4
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD59ec835b513630129eb86083811f39078
SHA12d593326481caee034bff986aaf9fb1d04db50aa
SHA256a580d4ab57fd27d9e8909191db19afcea2548cc98593819f4d5f44ad8c1d820b
SHA51229f84f9f95fa56f34d3c99273434bd5cdc28610065e1ffcadea86c3ba5959753cc86d82834bf52fb97454424702e6483d05eefef56fa73e4ca2fe7de389be6d3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5b10fe66910616ae5ff7167114ee75be2
SHA1c0eda7cd1c055cbc6e5f2171b16b013b9faf7e24
SHA2568467def13f0575f49ade2a481d9890b1fef3546ef30d29bbb61d0ec90f1b88d8
SHA5127439ff3e582fc867a8355face48cb4c1cfd412f222eee4b5f7acea019c89119ef6ba6f10943b8abc4b93dd70280c492e95b22531ffc47e0b7a6dd2baa04f16d3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ddae080e43d7807f150bded337483bd4
SHA1ca91518c0bc9061d9f2305623f08fc9f42210f0f
SHA256be4208a71eea5f470b2eea73ad7790caabfc1996b147b8b66ae0ab3ba91c8965
SHA512556445a18853f1f8897171d5bf6f27fbadbac12689904e9ef05523a30ab40d8fdb2b9404a98b589abeb4a9a4b5371848da441fea33e275956d8be4acd36a36e1
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD590c91de44222686e57ddbe57af977717
SHA183d7bfd209706610ce9fd91c6e9b60ec58a17921
SHA2560e6cfef0114a30a6a708eef8aab3fbd2ae64abac1204837274fadc3388f5409b
SHA5126801053e493c1b3bf7945ef54334fcd053bfa3cdccbee63eb2a6072daec3a30463e9ac490452938594e3bf457f0a3b1b7075c6b0b4183a97d7755af0e5e70756
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Filesize
4.1MB
MD579c4b7b79965a19b16a9dc7371644238
SHA117771e84fba4c0f9097bec8c3f93b2ea43795ddd
SHA2564a729addd8ee4afc1f9491749a663806ccb077f53deda184c6eed21bda5ccaf4
SHA51299bc7718b9d492b1a22023586ac7facbd2385d0b85d723efdf045d5b6ba336058c1cc414ab812bf042034faf0c5bf9743093426cdc0eeb68b27628083135542a
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec