Analysis
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max time kernel
150s -
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
16/05/2024, 19:32
Static task
static1
Behavioral task
behavioral1
Sample
cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe
Resource
win10v2004-20240426-en
General
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Target
cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe
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Size
4.1MB
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MD5
afaa5225d213cb99063a5abbe26f6b1a
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SHA1
9b6339355b406f945214db35840da8211490b78d
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SHA256
cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f
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SHA512
df4c03f5318efbdefe8d900795477fd30315ca597d3afe6778777fd8b3667e49abd8280c89db79d52e342ef4900b80f2c138deb8e53dbcd811d60414abbf211f
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SSDEEP
98304:vjrHiscAnk4Z0f7mBZCfuP+pmwVLETOu5PKDHvrjVgO2D:7rhn/yCBZkM+pB3dzS
Malware Config
Signatures
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Glupteba payload 18 IoCs
resource yara_rule behavioral2/memory/4652-2-0x0000000002E40000-0x000000000372B000-memory.dmp family_glupteba behavioral2/memory/4652-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4652-98-0x0000000002E40000-0x000000000372B000-memory.dmp family_glupteba behavioral2/memory/4652-99-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2140-124-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4960-180-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4960-191-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4960-193-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4960-197-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4960-200-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4960-203-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4960-205-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4960-209-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4960-212-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4960-214-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4960-217-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4960-221-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4960-224-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 412 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 4960 csrss.exe 2540 injector.exe 1432 windefender.exe 4848 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002aa0f-183.dat upx behavioral2/memory/1432-185-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1432-190-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4848-188-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4848-194-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/4848-199-0x0000000000400000-0x00000000008DF000-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\"" cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.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 6 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log powershell.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive powershell.exe -
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe File created C:\Windows\rss\csrss.exe cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.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 4836 sc.exe -
pid Process 4284 powershell.exe 2000 powershell.exe 1248 powershell.exe 1432 powershell.exe 2472 powershell.exe 5112 powershell.exe 4572 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 844 schtasks.exe 3800 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,-891 = "Morocco Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time" cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2061 = "North Korea Daylight Time" cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-201 = "US Mountain Daylight Time" cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.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,-452 = "Caucasus Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2432 = "Cuba Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2061 = "North Korea Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1932 = "Russia TZ 11 Standard Time" cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe 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\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2392 = "Aleutian Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-252 = "Dateline Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-741 = "New Zealand Daylight 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,-2491 = "Aus Central W. Daylight Time" cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates 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\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time" cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-371 = "Jerusalem Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time" cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-411 = "E. Africa Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time" cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time" cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.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\C:\Windows\system32\,@tzres.dll,-131 = "US Eastern Daylight Time" cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.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,-104 = "Central Brazilian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2791 = "Novosibirsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time" cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.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\Disallowed powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2042 = "Eastern Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-3141 = "South Sudan Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2592 = "Tocantins Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time" cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.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,-251 = "Dateline Daylight 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,-302 = "Romance 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,-572 = "China Standard Time" cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-742 = "New Zealand Standard Time" cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time" cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.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,-661 = "Cen. Australia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-731 = "Fiji Daylight 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" cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time" cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.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,-232 = "Hawaiian Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-382 = "South Africa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2391 = "Aleutian Daylight Time" cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1248 powershell.exe 1248 powershell.exe 4652 cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe 4652 cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe 1432 powershell.exe 1432 powershell.exe 2140 cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe 2140 cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe 2140 cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe 2140 cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe 2140 cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe 2140 cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe 2140 cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe 2140 cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe 2140 cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe 2140 cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe 2472 powershell.exe 2472 powershell.exe 5112 powershell.exe 5112 powershell.exe 4284 powershell.exe 4284 powershell.exe 2000 powershell.exe 2000 powershell.exe 2540 injector.exe 2540 injector.exe 2540 injector.exe 2540 injector.exe 2540 injector.exe 2540 injector.exe 4960 csrss.exe 4960 csrss.exe 2540 injector.exe 2540 injector.exe 2540 injector.exe 2540 injector.exe 2540 injector.exe 2540 injector.exe 4960 csrss.exe 4960 csrss.exe 2540 injector.exe 2540 injector.exe 2540 injector.exe 2540 injector.exe 4960 csrss.exe 4960 csrss.exe 2540 injector.exe 2540 injector.exe 2540 injector.exe 2540 injector.exe 2540 injector.exe 2540 injector.exe 2540 injector.exe 2540 injector.exe 2540 injector.exe 2540 injector.exe 2540 injector.exe 2540 injector.exe 2540 injector.exe 2540 injector.exe 2540 injector.exe 2540 injector.exe 2540 injector.exe 2540 injector.exe -
Suspicious use of AdjustPrivilegeToken 11 IoCs
description pid Process Token: SeDebugPrivilege 1248 powershell.exe Token: SeDebugPrivilege 4652 cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe Token: SeImpersonatePrivilege 4652 cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe Token: SeDebugPrivilege 1432 powershell.exe Token: SeDebugPrivilege 2472 powershell.exe Token: SeDebugPrivilege 5112 powershell.exe Token: SeDebugPrivilege 4284 powershell.exe Token: SeDebugPrivilege 2000 powershell.exe Token: SeSystemEnvironmentPrivilege 4960 csrss.exe Token: SeSecurityPrivilege 4836 sc.exe Token: SeSecurityPrivilege 4836 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4652 wrote to memory of 1248 4652 cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe 82 PID 4652 wrote to memory of 1248 4652 cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe 82 PID 4652 wrote to memory of 1248 4652 cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe 82 PID 2140 wrote to memory of 1432 2140 cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe 88 PID 2140 wrote to memory of 1432 2140 cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe 88 PID 2140 wrote to memory of 1432 2140 cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe 88 PID 2140 wrote to memory of 1240 2140 cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe 90 PID 2140 wrote to memory of 1240 2140 cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe 90 PID 1240 wrote to memory of 412 1240 cmd.exe 92 PID 1240 wrote to memory of 412 1240 cmd.exe 92 PID 2140 wrote to memory of 2472 2140 cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe 93 PID 2140 wrote to memory of 2472 2140 cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe 93 PID 2140 wrote to memory of 2472 2140 cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe 93 PID 2140 wrote to memory of 5112 2140 cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe 95 PID 2140 wrote to memory of 5112 2140 cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe 95 PID 2140 wrote to memory of 5112 2140 cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe 95 PID 2140 wrote to memory of 4960 2140 cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe 97 PID 2140 wrote to memory of 4960 2140 cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe 97 PID 2140 wrote to memory of 4960 2140 cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe 97 PID 4960 wrote to memory of 4572 4960 csrss.exe 98 PID 4960 wrote to memory of 4572 4960 csrss.exe 98 PID 4960 wrote to memory of 4572 4960 csrss.exe 98 PID 4960 wrote to memory of 4284 4960 csrss.exe 103 PID 4960 wrote to memory of 4284 4960 csrss.exe 103 PID 4960 wrote to memory of 4284 4960 csrss.exe 103 PID 4960 wrote to memory of 2000 4960 csrss.exe 106 PID 4960 wrote to memory of 2000 4960 csrss.exe 106 PID 4960 wrote to memory of 2000 4960 csrss.exe 106 PID 4960 wrote to memory of 2540 4960 csrss.exe 108 PID 4960 wrote to memory of 2540 4960 csrss.exe 108 PID 1432 wrote to memory of 2492 1432 windefender.exe 114 PID 1432 wrote to memory of 2492 1432 windefender.exe 114 PID 1432 wrote to memory of 2492 1432 windefender.exe 114 PID 2492 wrote to memory of 4836 2492 cmd.exe 115 PID 2492 wrote to memory of 4836 2492 cmd.exe 115 PID 2492 wrote to memory of 4836 2492 cmd.exe 115 -
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\cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe"C:\Users\Admin\AppData\Local\Temp\cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4652 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1248
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C:\Users\Admin\AppData\Local\Temp\cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.exe"C:\Users\Admin\AppData\Local\Temp\cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f.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:2140 -
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:1432
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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:1240 -
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:412
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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:2472
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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:5112
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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:4960 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Command and Scripting Interpreter: PowerShell
- Modifies data under HKEY_USERS
PID:4572
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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:844
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:740
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4284
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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:2000
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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:2540
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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:3800
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1432 -
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:2492 -
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:4836
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4848
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize2KB
MD5ac4917a885cf6050b1a483e4bc4d2ea5
SHA1b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA256e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
SHA512092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD546355b11766bcc6015edd7ec18479905
SHA1cf62bd774e64e0a3c278f7baaa2bc0c052bf5754
SHA25630d20ea735fdeeba882e11e123c1e7481bb93b8ef0666194d07e8e0003b9e118
SHA51290b14b4897899361ef891272d6446b2aad1e4930ffc86babf5385f6fb0d2fce1c398e856e623b958566e412577b6960fcae24b95b734e05e7bf33df350ebf41e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5589bcd45fa96f483b59a59bcd88bc843
SHA1d8b03331827c2939a92c79d0f38f641021d4c396
SHA2561f5e6784e4e004d1d7861e2bd728b4520ebb022291bd97ca099547e83104761b
SHA5123c04cb9d957b65cabf39a4c6c98885ae0e00fef11955b190e34f98a5c912ff6a1f64e352328b3096657fc0b26dd1c514ef05632b8c22d29fe7c0e1682276757d
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD586a1f9f9620669c8eac5100624cd757c
SHA15fc4df4551eb0b08356e31accc9edebc802b4c5e
SHA256c3a680c77264026d73eef78bc0a9dd7e55f1313d3f2a7aa2615ba44ad0fedabc
SHA512062a99eb234a88e249e46d47bc65d5f5a4a543f3b7cf3ab8a3fe745fba280e104b14a972187518b11fca484e28e02f99e8b05883a13247c7b7c60682adcdb41b
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d31c4c89ffcb64b2dd638df853c47682
SHA1485ae5ac89cc1992460b32d6e55316f3267c4cfb
SHA25632e9634894935331c8e9454a55b334bad89ec61104cb986517f22206ea939aa8
SHA512a8c111fef038cebf51b586d7c4eaf8a9996c0e4ab10ba86f9061526786ba4c763f7a23039b796132e1b05c696de206375b7f5419100f75f86f4efb4920228a71
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Filesize
4.1MB
MD5afaa5225d213cb99063a5abbe26f6b1a
SHA19b6339355b406f945214db35840da8211490b78d
SHA256cfbc7e9c8199fe3482305bbcafc80e076aa84c81e900d6305a8595651edd8c8f
SHA512df4c03f5318efbdefe8d900795477fd30315ca597d3afe6778777fd8b3667e49abd8280c89db79d52e342ef4900b80f2c138deb8e53dbcd811d60414abbf211f
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec