Analysis
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max time kernel
149s -
max time network
138s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
16/05/2024, 23:59
Static task
static1
Behavioral task
behavioral1
Sample
1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe
Resource
win10v2004-20240426-en
General
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Target
1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe
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Size
4.1MB
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MD5
c51933f62cd3bee1495d7abe891e898d
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SHA1
a759af9a40a76416d4a70b333483b11fcf49c9d5
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SHA256
1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799
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SHA512
18ed74ceaa262a3d022b3946c1bc74778db713659cda46799b6f494f6b008c48d16a52559d5be5e7fe8afef449eba0c38c7d1a521056294839c186bb501a957e
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SSDEEP
98304:ieUiHluf0rQLB7qDC2cDnv7XkMmFoNL2AuFwfBpDq4kblyNxxbhOzhGH:igHncLBP5HkIsFwf3u4kByfxbhOc
Malware Config
Signatures
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Glupteba payload 17 IoCs
resource yara_rule behavioral2/memory/3420-2-0x0000000002E20000-0x000000000370B000-memory.dmp family_glupteba behavioral2/memory/3420-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3420-52-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/3420-53-0x0000000002E20000-0x000000000370B000-memory.dmp family_glupteba behavioral2/memory/1008-127-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2024-190-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2024-210-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2024-217-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2024-219-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2024-221-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2024-223-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2024-225-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2024-227-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2024-229-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2024-231-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2024-233-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2024-235-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1448 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 2024 csrss.exe 1504 injector.exe 4036 windefender.exe 3160 windefender.exe -
resource yara_rule behavioral2/files/0x000400000002a9e6-209.dat upx behavioral2/memory/4036-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3160-214-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4036-216-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3160-218-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3160-222-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3433428765-2473475212-4279855560-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" csrss.exe Set value (str) \REGISTRY\USER\S-1-5-21-3433428765-2473475212-4279855560-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.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 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe File created C:\Windows\rss\csrss.exe 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.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 2204 sc.exe -
pid Process 772 powershell.exe 2204 powershell.exe 2576 powershell.exe 2940 powershell.exe 652 powershell.exe 5008 powershell.exe 724 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 2908 schtasks.exe 2636 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-721 = "Central Pacific Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-981 = "Kamchatka Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-752 = "Tonga Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time" 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\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\C:\Windows\system32\,@tzres.dll,-1891 = "Russia TZ 3 Daylight Time" 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.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 Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs 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\2a\52C64B7E\@tzres.dll,-334 = "Jordan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2751 = "Tomsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-41 = "E. South America Daylight Time" 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time" 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2411 = "Marquesas Daylight Time" 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1832 = "Russia TZ 2 Standard Time" 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.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\2a\52C64B7E\@tzres.dll,-841 = "Argentina Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-362 = "GTB Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1932 = "Russia TZ 11 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-222 = "Alaskan Standard Time" 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time" 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.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,-2062 = "North Korea Standard Time" windefender.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,-1892 = "Russia TZ 3 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time" 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time" 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)" 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs 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\2a\52C64B7E\@tzres.dll,-932 = "Coordinated Universal Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time" 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time" 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3051 = "Qyzylorda Daylight Time" 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2371 = "Easter Island Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1832 = "Russia TZ 2 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time" 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.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\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates 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,-2452 = "Saint Pierre Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time" 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs 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,-272 = "Greenwich Standard Time" 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-372 = "Jerusalem Standard Time" 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.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\C:\Windows\system32\,@tzres.dll,-2841 = "Saratov Daylight Time" 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time" 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 5008 powershell.exe 5008 powershell.exe 3420 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe 3420 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe 724 powershell.exe 724 powershell.exe 1008 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe 1008 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe 1008 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe 1008 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe 1008 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe 1008 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe 1008 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe 1008 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe 1008 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe 1008 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe 772 powershell.exe 772 powershell.exe 2204 powershell.exe 2204 powershell.exe 2576 powershell.exe 2576 powershell.exe 2940 powershell.exe 2940 powershell.exe 652 powershell.exe 652 powershell.exe 1504 injector.exe 1504 injector.exe 1504 injector.exe 1504 injector.exe 1504 injector.exe 1504 injector.exe 2024 csrss.exe 2024 csrss.exe 1504 injector.exe 1504 injector.exe 1504 injector.exe 1504 injector.exe 1504 injector.exe 1504 injector.exe 2024 csrss.exe 2024 csrss.exe 1504 injector.exe 1504 injector.exe 2024 csrss.exe 2024 csrss.exe 1504 injector.exe 1504 injector.exe 1504 injector.exe 1504 injector.exe 1504 injector.exe 1504 injector.exe 1504 injector.exe 1504 injector.exe 1504 injector.exe 1504 injector.exe 1504 injector.exe 1504 injector.exe 1504 injector.exe 1504 injector.exe 1504 injector.exe 1504 injector.exe 1504 injector.exe 1504 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 5008 powershell.exe Token: SeDebugPrivilege 3420 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe Token: SeImpersonatePrivilege 3420 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe Token: SeDebugPrivilege 724 powershell.exe Token: SeDebugPrivilege 772 powershell.exe Token: SeDebugPrivilege 2204 powershell.exe Token: SeDebugPrivilege 2576 powershell.exe Token: SeDebugPrivilege 2940 powershell.exe Token: SeDebugPrivilege 652 powershell.exe Token: SeSystemEnvironmentPrivilege 2024 csrss.exe Token: SeSecurityPrivilege 2204 sc.exe Token: SeSecurityPrivilege 2204 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 3420 wrote to memory of 5008 3420 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe 82 PID 3420 wrote to memory of 5008 3420 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe 82 PID 3420 wrote to memory of 5008 3420 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe 82 PID 1008 wrote to memory of 724 1008 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe 88 PID 1008 wrote to memory of 724 1008 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe 88 PID 1008 wrote to memory of 724 1008 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe 88 PID 1008 wrote to memory of 2184 1008 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe 91 PID 1008 wrote to memory of 2184 1008 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe 91 PID 2184 wrote to memory of 1448 2184 cmd.exe 93 PID 2184 wrote to memory of 1448 2184 cmd.exe 93 PID 1008 wrote to memory of 772 1008 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe 96 PID 1008 wrote to memory of 772 1008 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe 96 PID 1008 wrote to memory of 772 1008 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe 96 PID 1008 wrote to memory of 2204 1008 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe 98 PID 1008 wrote to memory of 2204 1008 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe 98 PID 1008 wrote to memory of 2204 1008 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe 98 PID 1008 wrote to memory of 2024 1008 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe 100 PID 1008 wrote to memory of 2024 1008 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe 100 PID 1008 wrote to memory of 2024 1008 1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe 100 PID 2024 wrote to memory of 2576 2024 csrss.exe 101 PID 2024 wrote to memory of 2576 2024 csrss.exe 101 PID 2024 wrote to memory of 2576 2024 csrss.exe 101 PID 2024 wrote to memory of 2940 2024 csrss.exe 107 PID 2024 wrote to memory of 2940 2024 csrss.exe 107 PID 2024 wrote to memory of 2940 2024 csrss.exe 107 PID 2024 wrote to memory of 652 2024 csrss.exe 109 PID 2024 wrote to memory of 652 2024 csrss.exe 109 PID 2024 wrote to memory of 652 2024 csrss.exe 109 PID 2024 wrote to memory of 1504 2024 csrss.exe 111 PID 2024 wrote to memory of 1504 2024 csrss.exe 111 PID 4036 wrote to memory of 4272 4036 windefender.exe 118 PID 4036 wrote to memory of 4272 4036 windefender.exe 118 PID 4036 wrote to memory of 4272 4036 windefender.exe 118 PID 4272 wrote to memory of 2204 4272 cmd.exe 119 PID 4272 wrote to memory of 2204 4272 cmd.exe 119 PID 4272 wrote to memory of 2204 4272 cmd.exe 119 -
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\1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe"C:\Users\Admin\AppData\Local\Temp\1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3420 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5008
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C:\Users\Admin\AppData\Local\Temp\1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.exe"C:\Users\Admin\AppData\Local\Temp\1b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799.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:1008 -
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:724
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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:2184 -
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:1448
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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:2204
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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:2024 -
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:2576
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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:2908
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:3432
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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:2940
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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:652
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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:1504
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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:2636
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4036 -
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:4272 -
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:2204
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3160
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
MD5dcdedc157bd18a88adaa28919615e3e5
SHA1fe1f24e255c3bd1a514a0157b78647304c726d8e
SHA256021d3c53e7d4146ce6f4f1b874aafe9c72f356700b98f2739ad969e713de079e
SHA5120f22e19cb6491d2c00a3ae0019a460396ba97a38ea3aa7567d9f0cba393f03357200f2391489e1e75cb5fdf9fdd2b43d5880d21114c889e5b1ac027001511f78
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5207a95aeda6ea759007d5fce7aacd910
SHA1b3c3051c22482e16f348f5d047fad816b8326395
SHA256564dcd6d3839d0fd81bf928e551b2c8848cbb7765018aa696e321031a5e12a9c
SHA512d70f80edcd99a3764237c87e76fddce3983a99beac340483c0c07bb98cf7387bfc068a872c312903f8dab61df6b87fe6a50d3fee1e37bc9bfbee6d872d87a5be
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5529d5ab4bb561b049d3d568bb631ec03
SHA14194b59d5aa73501e982b68f0949d8f824772f93
SHA2560dd44c45f65be9ab8e78643a5db36b13abc4f333eb98af6bbde5c7602db95716
SHA512df507f0cc002f50383a8f8e8e1dfbe118816525a04c3688e20b15e1eec88a7436f0dfa44776ef0954c562d38a6cb776c1aff6d98839588139c8c4a91b72f8db3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d6745247f54f879ee20be6b2f1ab0736
SHA1b37b24d3ba5945d69a6e96f964022d98557c1c8e
SHA256563305846d3c0cfde4044b8fc2feeae08f0c2106a2d47d401b6a874e459b32f0
SHA512c290663d26a56acb701b0db460f903bb9106f56ba20a39d36e5bb8121896c5547d6adf72167490bc6056f85024b91ad0375d9de588f5eab1b232e46f827ed752
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5ceaa59210015e02cc88696bcde1b5fb5
SHA18310057483c46b9450867568d7c880aeadbb33bc
SHA256c8a783a76ff36f5fc7118f13921ba4771ecda25420ad88f233f2024e8ed3e12c
SHA51218b4d66f06792232317653a3b505753ae26456f806abbb96923c243e3b3833095d9bd269d8c5108d251b7775048e30d47f6ccf2a45cf6ba06f2e5dd77713e67c
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Filesize
4.1MB
MD5c51933f62cd3bee1495d7abe891e898d
SHA1a759af9a40a76416d4a70b333483b11fcf49c9d5
SHA2561b21717c0f65d70c89986e4b019360cc859c78de35a2ed851209733d6df98799
SHA51218ed74ceaa262a3d022b3946c1bc74778db713659cda46799b6f494f6b008c48d16a52559d5be5e7fe8afef449eba0c38c7d1a521056294839c186bb501a957e
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec