Analysis
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max time kernel
149s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
18-05-2024 08:24
Static task
static1
Behavioral task
behavioral1
Sample
281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe
Resource
win10v2004-20240508-en
General
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Target
281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe
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Size
4.1MB
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MD5
6eda20e70933326bf41ba9903d8d8933
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SHA1
3888cb5ddf8c004c230192b027eb17fbabcb71cf
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SHA256
281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517
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SHA512
e00ed9d954c00764a3271cf38a5300dffceb0f9b1606223ac2fb43a50eac94be761f42bb03cb7465ff4495d0518a6f00878bc89ba1000c64242795b740ca696e
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SSDEEP
98304:ocO3d23DP4WvcTQUVFyLidGODnX7vlp0fAiBu1UOo5GU75c1WMsxi:ocO3d2wQ4Q8FyLwnXJ+AxvtU75c1js0
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral1/memory/4656-2-0x0000000004C40000-0x000000000552B000-memory.dmp family_glupteba behavioral1/memory/4656-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/4656-106-0x0000000004C40000-0x000000000552B000-memory.dmp family_glupteba behavioral1/memory/4656-104-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/4656-170-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral1/memory/3136-169-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/1820-214-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/1820-227-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/1820-230-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/1820-233-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/1820-237-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/1820-243-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/1820-247-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/1820-250-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/1820-253-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/1820-257-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/1820-263-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/1820-267-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba behavioral1/memory/1820-269-0x0000000000400000-0x0000000002B08000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2760 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 1820 csrss.exe 632 injector.exe 4268 windefender.exe 4264 windefender.exe -
resource yara_rule behavioral1/files/0x000c0000000006c5-219.dat upx behavioral1/memory/4268-220-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4264-223-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4268-225-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4264-231-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4264-238-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral1/memory/4264-251-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe Set value (str) \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\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 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 -
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 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe File created C:\Windows\rss\csrss.exe 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.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 2580 sc.exe -
pid Process 4216 powershell.exe 4636 powershell.exe 4744 powershell.exe 4268 powershell.exe 3000 powershell.exe 3144 powershell.exe 2896 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 3960 schtasks.exe 5048 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2872 = "Magallanes Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-692 = "Tasmania Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-652 = "AUS Central Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-352 = "FLE Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-232 = "Hawaiian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-42 = "E. South America Standard Time" 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-661 = "Cen. Australia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2412 = "Marquesas Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-451 = "Caucasus Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1801 = "Line Islands Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-791 = "SA Western Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-671 = "AUS Eastern Daylight Time" 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time" 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time" 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs 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\@tzres.dll,-491 = "India Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-831 = "SA Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time" 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2321 = "Sakhalin Daylight Time" 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time" 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.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,-335 = "Jordan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-832 = "SA Eastern Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time" 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time" 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.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 powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1472 = "Magadan Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-742 = "New Zealand Standard 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" 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-591 = "Malay Peninsula Daylight Time" 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-201 = "US Mountain Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)" 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2431 = "Cuba Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-872 = "Pakistan Standard 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,-1821 = "Russia TZ 1 Daylight Time" 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1872 = "Russia TZ 7 Standard Time" 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time" 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2532 = "Chatham Islands Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-501 = "Nepal Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-151 = "Central America Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time" 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time" 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4216 powershell.exe 4216 powershell.exe 4656 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 4656 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 4636 powershell.exe 4636 powershell.exe 3136 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 3136 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 3136 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 3136 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 3136 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 3136 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 3136 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 3136 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 3136 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 3136 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 4744 powershell.exe 4744 powershell.exe 4268 powershell.exe 4268 powershell.exe 3000 powershell.exe 3000 powershell.exe 3144 powershell.exe 3144 powershell.exe 2896 powershell.exe 2896 powershell.exe 632 injector.exe 632 injector.exe 632 injector.exe 632 injector.exe 632 injector.exe 632 injector.exe 632 injector.exe 632 injector.exe 1820 csrss.exe 1820 csrss.exe 632 injector.exe 632 injector.exe 632 injector.exe 632 injector.exe 632 injector.exe 632 injector.exe 1820 csrss.exe 1820 csrss.exe 632 injector.exe 632 injector.exe 1820 csrss.exe 1820 csrss.exe 632 injector.exe 632 injector.exe 632 injector.exe 632 injector.exe 632 injector.exe 632 injector.exe 632 injector.exe 632 injector.exe 632 injector.exe 632 injector.exe 632 injector.exe 632 injector.exe 632 injector.exe 632 injector.exe 632 injector.exe 632 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4216 powershell.exe Token: SeDebugPrivilege 4656 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe Token: SeImpersonatePrivilege 4656 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe Token: SeDebugPrivilege 4636 powershell.exe Token: SeDebugPrivilege 4744 powershell.exe Token: SeDebugPrivilege 4268 powershell.exe Token: SeDebugPrivilege 3000 powershell.exe Token: SeDebugPrivilege 3144 powershell.exe Token: SeDebugPrivilege 2896 powershell.exe Token: SeSystemEnvironmentPrivilege 1820 csrss.exe Token: SeSecurityPrivilege 2580 sc.exe Token: SeSecurityPrivilege 2580 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4656 wrote to memory of 4216 4656 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 85 PID 4656 wrote to memory of 4216 4656 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 85 PID 4656 wrote to memory of 4216 4656 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 85 PID 3136 wrote to memory of 4636 3136 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 97 PID 3136 wrote to memory of 4636 3136 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 97 PID 3136 wrote to memory of 4636 3136 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 97 PID 3136 wrote to memory of 2928 3136 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 100 PID 3136 wrote to memory of 2928 3136 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 100 PID 2928 wrote to memory of 2760 2928 cmd.exe 102 PID 2928 wrote to memory of 2760 2928 cmd.exe 102 PID 3136 wrote to memory of 4744 3136 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 103 PID 3136 wrote to memory of 4744 3136 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 103 PID 3136 wrote to memory of 4744 3136 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 103 PID 3136 wrote to memory of 4268 3136 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 106 PID 3136 wrote to memory of 4268 3136 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 106 PID 3136 wrote to memory of 4268 3136 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 106 PID 3136 wrote to memory of 1820 3136 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 108 PID 3136 wrote to memory of 1820 3136 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 108 PID 3136 wrote to memory of 1820 3136 281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe 108 PID 1820 wrote to memory of 3000 1820 csrss.exe 109 PID 1820 wrote to memory of 3000 1820 csrss.exe 109 PID 1820 wrote to memory of 3000 1820 csrss.exe 109 PID 1820 wrote to memory of 3144 1820 csrss.exe 114 PID 1820 wrote to memory of 3144 1820 csrss.exe 114 PID 1820 wrote to memory of 3144 1820 csrss.exe 114 PID 1820 wrote to memory of 2896 1820 csrss.exe 117 PID 1820 wrote to memory of 2896 1820 csrss.exe 117 PID 1820 wrote to memory of 2896 1820 csrss.exe 117 PID 1820 wrote to memory of 632 1820 csrss.exe 119 PID 1820 wrote to memory of 632 1820 csrss.exe 119 PID 4268 wrote to memory of 4732 4268 windefender.exe 126 PID 4268 wrote to memory of 4732 4268 windefender.exe 126 PID 4268 wrote to memory of 4732 4268 windefender.exe 126 PID 4732 wrote to memory of 2580 4732 cmd.exe 127 PID 4732 wrote to memory of 2580 4732 cmd.exe 127 PID 4732 wrote to memory of 2580 4732 cmd.exe 127 -
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\281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe"C:\Users\Admin\AppData\Local\Temp\281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4656 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4216
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C:\Users\Admin\AppData\Local\Temp\281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.exe"C:\Users\Admin\AppData\Local\Temp\281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517.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:3136 -
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:4636
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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:2928 -
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:2760
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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:4744
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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:4268
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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:1820 -
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:3000
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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:3960
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:1644
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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:3144
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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:2896
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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:632
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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:5048
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4268 -
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:4732 -
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:2580
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4264
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
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5dbe5d0077b32d4437210d5677ebbab25
SHA1655eeb74a4936f9314b281f3684a61b0dd304343
SHA25692578b80041aab2e6622afd3455a5419a56874a15bde37a41d03886ea508688a
SHA51297cc36c8524b4554527e7be57e2dd7e8349e6c99c7fbcd518c11c18253c9b26cc750ba1472e5b97444af6c9692fc67a0846c918414d5f797a4bab305c023ea27
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD543291412bdc2d40573f71ca74aa4001c
SHA1cd3f52ae67b538c4499cb090202fe28637371334
SHA25603afd6db9e9b2a18af81ad3d794a97aa0550e69afa5d8baa7e4e56c3eabbc163
SHA5125cb6970562330823117779801cb2b3fdb706d78033780f0c87ca2fcae75d9d5778cede5cbc528cefb50669925972249943480b04340494590455760bef2774b3
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5c616055b67632e5d62cbd0f6f4a5e42c
SHA1dfd817d440bbf15a88027ad9809619b47a161876
SHA2560e8e20ddb501678cc5d709af82b8059e986e052e79a3b6da1f0418ec0a7b4395
SHA5121c7a365a759e1a3dfaa06d5b99c9d22abbd31f3809d7ba83add92b53ba6de594a65cf7d21841cb2edc43a9f56f047e98667336d3cbba1dc24d6a75e1b9ab06fa
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD55210b9fcfe03e129625654e59cdd8a97
SHA1e502a97854479377392de015603c97c1da0670fa
SHA256aa091dec62c940cd43ba61e8da08f3e752e3cd2bc56b1a64e87c1be75dee444b
SHA512aae844a60733e4f0e66cb24bd7a62d489cdb5d1c9c7cd3e47d7f5df3240f8c0cd2242d91a3b5e71d139c43915c818ec0b33ee41f9a47122d80d29c37ce47e1f4
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5e344101ab7998fe50f598760b3c684bb
SHA14b2e2571e2ef2eb06779de06ae43e31f628fd25f
SHA256de8bf09a9540a3e8e4f03cb343c7b1abf7277d00916d7c796bb7250f7c9b80f5
SHA512d2218c9a3673cb545e169969e277d99b8c1f2aa95cc3e331df304f5c726f913b70d49c62a100e8e27da439599244c3c21b8da0aa6ed69d20818ebb417e027bce
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Filesize
4.1MB
MD56eda20e70933326bf41ba9903d8d8933
SHA13888cb5ddf8c004c230192b027eb17fbabcb71cf
SHA256281cb4b1f1eb4ac92d5e2f4e8c6e2bbac4eefe9fae30c6fd0dec6a027e68e517
SHA512e00ed9d954c00764a3271cf38a5300dffceb0f9b1606223ac2fb43a50eac94be761f42bb03cb7465ff4495d0518a6f00878bc89ba1000c64242795b740ca696e
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec