Analysis
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max time kernel
149s -
max time network
151s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
17-05-2024 19:53
Static task
static1
Behavioral task
behavioral1
Sample
f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe
Resource
win10v2004-20240426-en
General
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Target
f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe
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Size
4.1MB
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MD5
9a41f4af9ed7851983a91f11cfb4146f
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SHA1
7908afab4a6b6ef656a4e9b83ae1cc62b46f3027
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SHA256
f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879
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SHA512
c44e1b7e25e81d7c03c63b93482de95f099d0b83873f39b7cdfaef4364291e8b56e80ff0dbedf506eaa3bdd95effebe0e0a6e8b66c5ad143eb254b675168090a
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SSDEEP
49152:lKSHQE6bCrQt9J2m6qYk0f+BzgqdGFArOOO8EeNSlBbqHPgo81vjAIlxiZQJwPN:l1wCr5kG+hEArjFEeNSldQg15xmhl
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/4100-2-0x0000000004C70000-0x000000000555B000-memory.dmp family_glupteba behavioral2/memory/4100-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4100-100-0x0000000004C70000-0x000000000555B000-memory.dmp family_glupteba behavioral2/memory/4100-99-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/4100-172-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/1928-171-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3920-201-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3920-213-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3920-218-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3920-221-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3920-225-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3920-229-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3920-234-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3920-238-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3920-241-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3920-245-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3920-249-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3920-254-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral2/memory/3920-257-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1832 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 3920 csrss.exe 4868 injector.exe 2016 windefender.exe 1364 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002aa27-205.dat upx behavioral2/memory/2016-207-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1364-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2016-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1364-215-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1364-223-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3938118698-2964058152-2337880935-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe Set value (str) \REGISTRY\USER\S-1-5-21-3938118698-2964058152-2337880935-1000\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 f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe File created C:\Windows\rss\csrss.exe f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.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 2300 sc.exe -
pid Process 4480 powershell.exe 1788 powershell.exe 3136 powershell.exe 3240 powershell.exe 772 powershell.exe 4736 powershell.exe 1568 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 3876 schtasks.exe 872 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\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time" f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time" f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 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\@tzres.dll,-982 = "Kamchatka Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time" f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time" f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)" f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time" f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1892 = "Russia TZ 3 Standard Time" f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1661 = "Bahia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1502 = "Turkey 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,-82 = "Atlantic Standard Time" f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time" f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2451 = "Saint Pierre Daylight Time" f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2532 = "Chatham Islands Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1822 = "Russia TZ 1 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-92 = "Pacific SA Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2572 = "Turks and Caicos Standard Time" f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.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,-452 = "Caucasus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2372 = "Easter Island Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-131 = "US Eastern Daylight Time" f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-132 = "US Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time" f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.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,-2612 = "Bougainville Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1842 = "Russia TZ 4 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-52 = "Greenland Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2512 = "Lord Howe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1912 = "Russia TZ 10 Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.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 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1842 = "Russia TZ 4 Standard Time" f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time" f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)" f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs 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,-1662 = "Bahia Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1021 = "Bangladesh Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3051 = "Qyzylorda Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time" f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time" f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.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\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople 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,-384 = "Namibia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-131 = "US Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time" f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3136 powershell.exe 3136 powershell.exe 4100 f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe 4100 f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe 3240 powershell.exe 3240 powershell.exe 1928 f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe 1928 f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe 1928 f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe 1928 f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe 1928 f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe 1928 f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe 1928 f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe 1928 f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe 1928 f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe 1928 f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe 772 powershell.exe 772 powershell.exe 4736 powershell.exe 4736 powershell.exe 1568 powershell.exe 1568 powershell.exe 4480 powershell.exe 4480 powershell.exe 1788 powershell.exe 1788 powershell.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 3920 csrss.exe 3920 csrss.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 3920 csrss.exe 3920 csrss.exe 4868 injector.exe 4868 injector.exe 3920 csrss.exe 3920 csrss.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe 4868 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 3136 powershell.exe Token: SeDebugPrivilege 4100 f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe Token: SeImpersonatePrivilege 4100 f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe Token: SeDebugPrivilege 3240 powershell.exe Token: SeDebugPrivilege 772 powershell.exe Token: SeDebugPrivilege 4736 powershell.exe Token: SeDebugPrivilege 1568 powershell.exe Token: SeDebugPrivilege 4480 powershell.exe Token: SeDebugPrivilege 1788 powershell.exe Token: SeSystemEnvironmentPrivilege 3920 csrss.exe Token: SeSecurityPrivilege 2300 sc.exe Token: SeSecurityPrivilege 2300 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4100 wrote to memory of 3136 4100 f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe 81 PID 4100 wrote to memory of 3136 4100 f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe 81 PID 4100 wrote to memory of 3136 4100 f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe 81 PID 1928 wrote to memory of 3240 1928 f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe 86 PID 1928 wrote to memory of 3240 1928 f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe 86 PID 1928 wrote to memory of 3240 1928 f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe 86 PID 1928 wrote to memory of 900 1928 f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe 88 PID 1928 wrote to memory of 900 1928 f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe 88 PID 900 wrote to memory of 1832 900 cmd.exe 90 PID 900 wrote to memory of 1832 900 cmd.exe 90 PID 1928 wrote to memory of 772 1928 f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe 91 PID 1928 wrote to memory of 772 1928 f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe 91 PID 1928 wrote to memory of 772 1928 f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe 91 PID 1928 wrote to memory of 4736 1928 f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe 93 PID 1928 wrote to memory of 4736 1928 f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe 93 PID 1928 wrote to memory of 4736 1928 f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe 93 PID 1928 wrote to memory of 3920 1928 f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe 95 PID 1928 wrote to memory of 3920 1928 f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe 95 PID 1928 wrote to memory of 3920 1928 f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe 95 PID 3920 wrote to memory of 1568 3920 csrss.exe 96 PID 3920 wrote to memory of 1568 3920 csrss.exe 96 PID 3920 wrote to memory of 1568 3920 csrss.exe 96 PID 3920 wrote to memory of 4480 3920 csrss.exe 101 PID 3920 wrote to memory of 4480 3920 csrss.exe 101 PID 3920 wrote to memory of 4480 3920 csrss.exe 101 PID 3920 wrote to memory of 1788 3920 csrss.exe 104 PID 3920 wrote to memory of 1788 3920 csrss.exe 104 PID 3920 wrote to memory of 1788 3920 csrss.exe 104 PID 3920 wrote to memory of 4868 3920 csrss.exe 106 PID 3920 wrote to memory of 4868 3920 csrss.exe 106 PID 2016 wrote to memory of 1920 2016 windefender.exe 112 PID 2016 wrote to memory of 1920 2016 windefender.exe 112 PID 2016 wrote to memory of 1920 2016 windefender.exe 112 PID 1920 wrote to memory of 2300 1920 cmd.exe 113 PID 1920 wrote to memory of 2300 1920 cmd.exe 113 PID 1920 wrote to memory of 2300 1920 cmd.exe 113 -
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\f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe"C:\Users\Admin\AppData\Local\Temp\f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4100 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3136
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C:\Users\Admin\AppData\Local\Temp\f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.exe"C:\Users\Admin\AppData\Local\Temp\f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879.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:1928 -
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:3240
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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:900 -
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:1832
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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:772
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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:4736
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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:3920 -
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:1568
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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:3876
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4124
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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:4480
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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:1788
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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:4868
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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:872
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2016 -
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:1920 -
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:2300
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1364
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
MD585101d122e0ca91581dd3974e5843243
SHA1dd5ceb5ee1d4d65bf3501a86138f91b6ccc95652
SHA256ad321d9776dc697d3bac813f7ccaf8e4dcbfa6ecc6e9f50af329632eefde41b7
SHA5128de8381d50db9827a096b49af7e0357f93a8051d79009c94be0a8f64e5f5e8cee9006f005055ad83227217c9e86991cae7c968daf10b03230f4e951b83c33788
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a131b70195b626330939383ed775030f
SHA1f1cca54b2077c3736eeaaaee4b29a8adca518c4e
SHA2567afe6af3a35f91aec9f58ebca98670a0ec09bec175a3db3dfd884668c3fb9ed5
SHA5123a533abee86a6ce27b94da57772bee0397cb66bdb12f04e3053e73c825f69781865baa14d6087dbfe984e7075a9d13ab1ff11f62b3de168bb6a1b0cedc8a63c6
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5a8e9346499dbb4d806770fde820c02af
SHA183d4441b7b04865eac3aef8eaa9904b0d4848401
SHA2566e58718c45785e3042121b68aa6c8eb0e69f8d15f98328d219e22cc4de19e3e6
SHA512918600cd3e80ed7844bead17c0ef51bd9dd933efaf59345242d71146c674d836ce32774421d7ed02b261c8fd4c73dcfca9a5b0ca697a73696335f56bd7ccc06b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD51c8ed49881d3c34ff74390dee684d101
SHA120b2af9a563decffd59660d52c6f2fc9ee7c6d00
SHA256b3923df1bff35fb14a3ce370e29f1e1d19289bcb1fd99535e317a094b6381b59
SHA512f47c36d29c318717f824e9bd785265e544178e2a7ffbbf8f07aef2a53f1c93e318e29e819000272aa176b7a4a7c6545e01294e8011a1d2d2c97b6030674886f7
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5269460335465f126752627b3079b1475
SHA1fa8dd3f4f3fa1b4474f8bcc6b0c4ebe2e123c47b
SHA256afb326a03a29ed6d6de96fce108424874c40c73fc3a8a64d2d09b8e4e1834232
SHA512c1d5670cb007db8477efec7c41de14b092f0bbed10ae27a916ee08d6c18932eae5f5718f10717a68cc5eb7678d6c9bb841c86dd772d7f374ebc6565169245eab
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Filesize
4.1MB
MD59a41f4af9ed7851983a91f11cfb4146f
SHA17908afab4a6b6ef656a4e9b83ae1cc62b46f3027
SHA256f864d3a426f14ba52b30eb26ad60000d12c624071dbf5ef25690664fd0a90879
SHA512c44e1b7e25e81d7c03c63b93482de95f099d0b83873f39b7cdfaef4364291e8b56e80ff0dbedf506eaa3bdd95effebe0e0a6e8b66c5ad143eb254b675168090a
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec