Analysis
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max time kernel
142s -
max time network
159s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system -
submitted
17/04/2024, 19:28
Static task
static1
Behavioral task
behavioral1
Sample
3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe
Resource
win10v2004-20240412-en
General
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Target
3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe
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Size
4.2MB
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MD5
fde8a5ce7cf63cc996ebe0395d63f005
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SHA1
cdc2b2a3b1b3466fbe26c1187c8d1eaf7e50255f
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SHA256
3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72
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SHA512
19fc5e6cf2b50a9c934444572175c732157df5c1b0e7d2a8c70272474cb2d84d2c39fcace3879ddefe4258134e420c663a8c8f52397706ebba749815eb49e07b
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SSDEEP
98304:Tz8muvG4/7oo98xMphVIqHAQJ7eNfIWzS5gC960Xfu6ti9vBy29w:TzvuvT/7/zVIWAQdeNfIWzX0W6tA42m
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral2/memory/3272-2-0x0000000005380000-0x0000000005C6B000-memory.dmp family_glupteba behavioral2/memory/3272-3-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral2/memory/3272-23-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral2/memory/3272-44-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral2/memory/3272-49-0x0000000005380000-0x0000000005C6B000-memory.dmp family_glupteba behavioral2/memory/3272-55-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral2/memory/2044-57-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral2/memory/2044-86-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral2/memory/2044-114-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral2/memory/2044-147-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral2/memory/3300-150-0x0000000005600000-0x0000000005EEB000-memory.dmp family_glupteba behavioral2/memory/3300-207-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral2/memory/3300-241-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral2/memory/3300-250-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral2/memory/3300-253-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral2/memory/3300-255-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral2/memory/3300-258-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba behavioral2/memory/3300-261-0x0000000000400000-0x000000000310E000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4788 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 3300 csrss.exe 3808 injector.exe 2092 windefender.exe 1292 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a9f2-245.dat upx behavioral2/memory/2092-249-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1292-252-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1292-259-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1734202354-1504186683-2192872036-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe Set value (str) \REGISTRY\USER\S-1-5-21-1734202354-1504186683-2192872036-1000\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 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 -
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 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe File created C:\Windows\rss\csrss.exe 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.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 1784 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 1340 schtasks.exe 2328 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time" 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2611 = "Bougainville Daylight Time" 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time" 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time" 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time" 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2841 = "Saratov Daylight Time" 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\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\26\52C64B7E\@tzres.dll,-602 = "Taipei Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time" 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\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\26\52C64B7E\@tzres.dll,-681 = "E. Australia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-981 = "Kamchatka Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time" 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.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\26\52C64B7E\@tzres.dll,-241 = "Samoa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time" 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time" 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\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\26\52C64B7E\@tzres.dll,-461 = "Afghanistan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-381 = "South Africa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-202 = "US Mountain Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time" 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-391 = "Arab Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-105 = "Central Brazilian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-772 = "Montevideo Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-192 = "Mountain Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time" 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time" 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-201 = "US Mountain Daylight Time" 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1661 = "Bahia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1501 = "Turkey Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-292 = "Central European Standard Time" 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-52 = "Greenland Standard Time" 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 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\26\52C64B7E\@tzres.dll,-2062 = "North Korea Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-3051 = "Qyzylorda Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time" 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time" 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-342 = "Egypt Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2451 = "Saint Pierre Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time" 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time" 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time" 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-392 = "Arab Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-492 = "India Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3988 powershell.exe 3988 powershell.exe 3272 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe 3272 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe 2464 powershell.exe 2464 powershell.exe 2044 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe 2044 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe 2044 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe 2044 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe 2044 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe 2044 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe 2044 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe 2044 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe 2044 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe 2044 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe 3368 powershell.exe 3368 powershell.exe 228 powershell.exe 228 powershell.exe 4288 powershell.exe 4288 powershell.exe 3260 powershell.exe 3260 powershell.exe 3940 powershell.exe 3940 powershell.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3300 csrss.exe 3300 csrss.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3300 csrss.exe 3300 csrss.exe 3808 injector.exe 3808 injector.exe 3300 csrss.exe 3300 csrss.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe 3808 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 3988 powershell.exe Token: SeDebugPrivilege 3272 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe Token: SeImpersonatePrivilege 3272 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe Token: SeDebugPrivilege 2464 powershell.exe Token: SeDebugPrivilege 3368 powershell.exe Token: SeDebugPrivilege 228 powershell.exe Token: SeDebugPrivilege 4288 powershell.exe Token: SeDebugPrivilege 3260 powershell.exe Token: SeDebugPrivilege 3940 powershell.exe Token: SeSystemEnvironmentPrivilege 3300 csrss.exe Token: SeSecurityPrivilege 1784 sc.exe Token: SeSecurityPrivilege 1784 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 3272 wrote to memory of 3988 3272 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe 82 PID 3272 wrote to memory of 3988 3272 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe 82 PID 3272 wrote to memory of 3988 3272 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe 82 PID 2044 wrote to memory of 2464 2044 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe 87 PID 2044 wrote to memory of 2464 2044 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe 87 PID 2044 wrote to memory of 2464 2044 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe 87 PID 2044 wrote to memory of 3968 2044 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe 89 PID 2044 wrote to memory of 3968 2044 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe 89 PID 3968 wrote to memory of 4788 3968 cmd.exe 91 PID 3968 wrote to memory of 4788 3968 cmd.exe 91 PID 2044 wrote to memory of 3368 2044 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe 92 PID 2044 wrote to memory of 3368 2044 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe 92 PID 2044 wrote to memory of 3368 2044 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe 92 PID 2044 wrote to memory of 228 2044 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe 94 PID 2044 wrote to memory of 228 2044 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe 94 PID 2044 wrote to memory of 228 2044 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe 94 PID 2044 wrote to memory of 3300 2044 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe 96 PID 2044 wrote to memory of 3300 2044 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe 96 PID 2044 wrote to memory of 3300 2044 3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe 96 PID 3300 wrote to memory of 4288 3300 csrss.exe 97 PID 3300 wrote to memory of 4288 3300 csrss.exe 97 PID 3300 wrote to memory of 4288 3300 csrss.exe 97 PID 3300 wrote to memory of 3260 3300 csrss.exe 103 PID 3300 wrote to memory of 3260 3300 csrss.exe 103 PID 3300 wrote to memory of 3260 3300 csrss.exe 103 PID 3300 wrote to memory of 3940 3300 csrss.exe 105 PID 3300 wrote to memory of 3940 3300 csrss.exe 105 PID 3300 wrote to memory of 3940 3300 csrss.exe 105 PID 3300 wrote to memory of 3808 3300 csrss.exe 107 PID 3300 wrote to memory of 3808 3300 csrss.exe 107 PID 2092 wrote to memory of 2888 2092 windefender.exe 113 PID 2092 wrote to memory of 2888 2092 windefender.exe 113 PID 2092 wrote to memory of 2888 2092 windefender.exe 113 PID 2888 wrote to memory of 1784 2888 cmd.exe 114 PID 2888 wrote to memory of 1784 2888 cmd.exe 114 PID 2888 wrote to memory of 1784 2888 cmd.exe 114 -
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\3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe"C:\Users\Admin\AppData\Local\Temp\3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.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⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3988
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C:\Users\Admin\AppData\Local\Temp\3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.exe"C:\Users\Admin\AppData\Local\Temp\3f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72.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:2044 -
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:2464
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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:3968 -
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:4788
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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:3368
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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:228
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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:3300 -
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:4288
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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:1340
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4824
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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:3260
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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:3940
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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:3808
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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:2328
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2092 -
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:2888 -
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:1784
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1292
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
MD5b823d2a9f1bb5b4aa0218b79da89515f
SHA1b7ac664aba8998433084b61c261666d7fbb175d1
SHA25668f1f4e17eeb6d54cdedad071e3a13047f455765731b2672b43b96ecf45209e8
SHA5128b9c4c4959546476b50fe84207722dc240a150b85da42284b38cb1db79bd9bb4f94a95bffd142619f36d95fc7528c0b7ba81cf131d03129173cfd6236dd45273
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD596f3c4b9d5d7520a4497525d1b2d8469
SHA1fc0555eb9091fb85b1271abba7055a37235c576c
SHA25685558019ff0443d2fe465c0ed4e5d5a884932ae2404b6c601cc2a35bfd6bbbaf
SHA512d24aefc0c9f9081dbd9b60e9a9a995b60282e31bf3fe192d05100eec66c2ce6e2891a15d4a0c5e64c4bcabc4cf49eab1799ad268b8e2631eda8fbe6a40ecbc9e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD539105902c2634c02a47ab42824ab9cbb
SHA1587e238dda1292eb577155cad4091c14f312d562
SHA25637dbb3a097e1d0672375f8746e1f99d359ec7d17d0e09b3f10a88117250dd289
SHA5129d275985465b9b504dc3d0e3cc6b79b49e8732ea67a7764f38150891bac5848ab6948756844db2997bba1bd444c8c822730fbae72edc7fe5d2cf3d8a9632b913
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5661a193853491595569c9cb7506796e7
SHA1d22e958bc1bc2a18d49f714a68d95ed9c73c19c9
SHA256b0a36900246c2f51b1161a20f17d66645e5c9d15e02a32e2f109b6542b7eb3a5
SHA51285c280f6124d75d7ca0781bf18714dfa7e454dceda9a5976fb799a7a281f23ede59fd1c87f640c4c6e55d4102ce2c2addfc82b6caac738178b69bc21b8dc8d90
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e9811d7b99dab14bf9ed5398406d2058
SHA12c103b199ea8271f3b3630081aab168c29af5628
SHA2565aad226d4677ee04d15cfa26f211d4d9450cb60eb63a88fb1a3eff8da72f6e50
SHA5127fa9e66cc4bdffd65cf608b307ebf5ddffd1c93ed39a7910b2dfb6776ba3c95d9ff20e05aa3efa4a54bf5b8861abcedaf0b22f8474853d48b3ca1d00f0b99544
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Filesize
4.2MB
MD5fde8a5ce7cf63cc996ebe0395d63f005
SHA1cdc2b2a3b1b3466fbe26c1187c8d1eaf7e50255f
SHA2563f5f47f94636eacc13159b402ede3483231d0b69ea137e773191c1dee1025d72
SHA51219fc5e6cf2b50a9c934444572175c732157df5c1b0e7d2a8c70272474cb2d84d2c39fcace3879ddefe4258134e420c663a8c8f52397706ebba749815eb49e07b
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec