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Analysis
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max time kernel
150s -
max time network
132s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
19/05/2024, 02:08
Static task
static1
Behavioral task
behavioral1
Sample
f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe
Resource
win10v2004-20240226-en
General
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Target
f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe
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Size
4.1MB
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MD5
4afe589c82a1100a40856143ff31fdfb
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SHA1
b7b4aaa5a447221a96e4ef2bbd02378584c45f56
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SHA256
f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203
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SHA512
ecd23caa967a8ed463596b099a3e5d1223a8cfadcd2b7bc7c5f5f2b8b334b5f46b5776e119010179bc8f30caf1aab1d12719f4070edab30ddd22a5a8e0945348
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SSDEEP
98304:UrbgSYZm0VZ47d2LjXdY+WeqK35WW/TEhU3Gu22A:UrcnZFqd2LRPP3hYhQZA
Malware Config
Signatures
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Glupteba payload 19 IoCs
resource yara_rule behavioral2/memory/4900-2-0x00000000044C0000-0x0000000004DAB000-memory.dmp family_glupteba behavioral2/memory/4900-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4900-78-0x00000000044C0000-0x0000000004DAB000-memory.dmp family_glupteba behavioral2/memory/4900-76-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/4900-124-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/2436-122-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/2436-128-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/3320-196-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/3320-213-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/3320-215-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/3320-218-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/3320-220-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/3320-223-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/3320-228-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/3320-230-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/3320-232-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/3320-235-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/3320-238-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/3320-242-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4500 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 3320 csrss.exe 1224 injector.exe 988 windefender.exe 2816 windefender.exe -
resource yara_rule behavioral2/files/0x001a00000002ab48-205.dat upx behavioral2/memory/988-206-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2816-209-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/988-211-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2816-216-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/2816-221-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe Set value (str) \REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\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 f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\rss f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe File created C:\Windows\rss\csrss.exe f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.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 2364 sc.exe -
pid Process 2732 powershell.exe 2252 powershell.exe 3856 powershell.exe 3624 powershell.exe 3244 powershell.exe 4992 powershell.exe 4548 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 4284 schtasks.exe 5008 schtasks.exe -
Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time" f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates 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,-51 = "Greenland Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time" f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.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,-541 = "Myanmar Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time" f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.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\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time" f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time" f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time" f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-381 = "South Africa Daylight 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\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-52 = "Greenland Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1911 = "Russia TZ 10 Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot 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\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time" f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe Key created \REGISTRY\USER\.DEFAULT\Software\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\trust\CTLs 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,-681 = "E. Australia Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time" f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time" f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time" f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1861 = "Russia TZ 6 Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2322 = "Sakhalin Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1801 = "Line Islands Daylight Time" f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2942 = "Sao Tome Standard Time" windefender.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,-502 = "Nepal 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" f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-12 = "Azores 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\@tzres.dll,-2752 = "Tomsk Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time" f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-671 = "AUS Eastern Daylight Time" f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)" f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4992 powershell.exe 4992 powershell.exe 4900 f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe 4900 f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe 4548 powershell.exe 4548 powershell.exe 2436 f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe 2436 f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe 2436 f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe 2436 f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe 2436 f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe 2436 f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe 2436 f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe 2436 f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe 2436 f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe 2436 f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe 2732 powershell.exe 2732 powershell.exe 2252 powershell.exe 2252 powershell.exe 3856 powershell.exe 3856 powershell.exe 3624 powershell.exe 3624 powershell.exe 3244 powershell.exe 3244 powershell.exe 1224 injector.exe 1224 injector.exe 1224 injector.exe 1224 injector.exe 1224 injector.exe 1224 injector.exe 3320 csrss.exe 3320 csrss.exe 1224 injector.exe 1224 injector.exe 1224 injector.exe 1224 injector.exe 1224 injector.exe 1224 injector.exe 3320 csrss.exe 3320 csrss.exe 1224 injector.exe 1224 injector.exe 3320 csrss.exe 3320 csrss.exe 1224 injector.exe 1224 injector.exe 1224 injector.exe 1224 injector.exe 1224 injector.exe 1224 injector.exe 1224 injector.exe 1224 injector.exe 1224 injector.exe 1224 injector.exe 1224 injector.exe 1224 injector.exe 1224 injector.exe 1224 injector.exe 1224 injector.exe 1224 injector.exe 1224 injector.exe 1224 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 4992 powershell.exe Token: SeDebugPrivilege 4900 f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe Token: SeImpersonatePrivilege 4900 f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe Token: SeDebugPrivilege 4548 powershell.exe Token: SeDebugPrivilege 2732 powershell.exe Token: SeDebugPrivilege 2252 powershell.exe Token: SeDebugPrivilege 3856 powershell.exe Token: SeDebugPrivilege 3624 powershell.exe Token: SeDebugPrivilege 3244 powershell.exe Token: SeSystemEnvironmentPrivilege 3320 csrss.exe Token: SeSecurityPrivilege 2364 sc.exe Token: SeSecurityPrivilege 2364 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4900 wrote to memory of 4992 4900 f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe 81 PID 4900 wrote to memory of 4992 4900 f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe 81 PID 4900 wrote to memory of 4992 4900 f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe 81 PID 2436 wrote to memory of 4548 2436 f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe 86 PID 2436 wrote to memory of 4548 2436 f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe 86 PID 2436 wrote to memory of 4548 2436 f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe 86 PID 2436 wrote to memory of 2652 2436 f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe 88 PID 2436 wrote to memory of 2652 2436 f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe 88 PID 2652 wrote to memory of 4500 2652 cmd.exe 90 PID 2652 wrote to memory of 4500 2652 cmd.exe 90 PID 2436 wrote to memory of 2732 2436 f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe 91 PID 2436 wrote to memory of 2732 2436 f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe 91 PID 2436 wrote to memory of 2732 2436 f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe 91 PID 2436 wrote to memory of 2252 2436 f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe 93 PID 2436 wrote to memory of 2252 2436 f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe 93 PID 2436 wrote to memory of 2252 2436 f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe 93 PID 2436 wrote to memory of 3320 2436 f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe 95 PID 2436 wrote to memory of 3320 2436 f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe 95 PID 2436 wrote to memory of 3320 2436 f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe 95 PID 3320 wrote to memory of 3856 3320 csrss.exe 96 PID 3320 wrote to memory of 3856 3320 csrss.exe 96 PID 3320 wrote to memory of 3856 3320 csrss.exe 96 PID 3320 wrote to memory of 3624 3320 csrss.exe 101 PID 3320 wrote to memory of 3624 3320 csrss.exe 101 PID 3320 wrote to memory of 3624 3320 csrss.exe 101 PID 3320 wrote to memory of 3244 3320 csrss.exe 104 PID 3320 wrote to memory of 3244 3320 csrss.exe 104 PID 3320 wrote to memory of 3244 3320 csrss.exe 104 PID 3320 wrote to memory of 1224 3320 csrss.exe 106 PID 3320 wrote to memory of 1224 3320 csrss.exe 106 PID 988 wrote to memory of 4972 988 windefender.exe 112 PID 988 wrote to memory of 4972 988 windefender.exe 112 PID 988 wrote to memory of 4972 988 windefender.exe 112 PID 4972 wrote to memory of 2364 4972 cmd.exe 113 PID 4972 wrote to memory of 2364 4972 cmd.exe 113 PID 4972 wrote to memory of 2364 4972 cmd.exe 113 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe"C:\Users\Admin\AppData\Local\Temp\f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4900 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4992
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C:\Users\Admin\AppData\Local\Temp\f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.exe"C:\Users\Admin\AppData\Local\Temp\f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203.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:2436 -
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:4548
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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:2652 -
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:4500
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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:2732
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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:2252
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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:3320 -
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:3856
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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:4284
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4752
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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:3624
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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:3244
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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:1224
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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:5008
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:988 -
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:4972 -
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:2364
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2816
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
MD51bcecef9eca2f4c0b0d6c1082cdcdac5
SHA14b482dd3ddf9057b51d42abb3ea4a12167539717
SHA256ae14c91cb90dcf58b73421b97548de51c3738b1f8952bd41fa771f30784c7fa1
SHA5124a5e916d5f63d4e803fedfb94e9c28e62fa27defd7d1bfb9b2eeaa5f115861132aa901dda6d80d34a13a0f2571d54395dbda1c5bea988eeaa2bfee8f3aa37f8c
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5cbf30ac120ab751d7539314fa3a49df6
SHA122dde54d037e41f38a2fbb0308a3afcd2a5815e5
SHA256f97abb9d2b0929528f749f54aaa556ca0eba27da1f59b6ac85e40488c6173823
SHA512b7c29473d81a6bd11fb7a5632692bd0fd066d374a457644deec3568cbe59ec8d1aa738be4fd7cb549232da4e1bab869ba0e203684005b4e37d8f5d7a5ba0df3e
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5f78863ecfd593432ef884cac9e50330e
SHA10164884b7f3480de3cc1cdb894e93dd48f02b638
SHA2569bb17488ada79a8cc377d29912ecc305e0482e6458837ddbceb73f6ce7aa44f7
SHA512295464adb4046b41140fa7a411b8c1b01184ecfde6c8ccd3a3e502c132df4a0812ff0c3ceed50b3df0f39d0de0aa851aacecd0d7a8873d68b0adbd7cc6b00a1f
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50a1300e714fdc917886a9106922e5460
SHA12ff39a64f39df42367bb346b798e520f701095d3
SHA256e46d99f1b2f93d78c83681c33d67c39fdbb5ee4287b257096765c502e2cf7ec3
SHA5127ccb568464e38b67fa456b00d0e90442c6deb64e73fdbcfde033324d0512566d9361646f4ddebfa83dfa0d2f01a07b9c32443bf3bd30edb27050761b74c12c33
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD5d3307ff4c507d91279b7a5d11aa93fd3
SHA13a179af7560b3e1f377cb0f6beaa2bff78886240
SHA256c60a8a0fdba7588b8e9fc987c9de35aaf5704ea944014c137c514419c1b95484
SHA5126bd4a7ab871d89535f558e199b230dc668d1468ee28af02c22aa723781331990fd2d0a2298ab78ccfc2afed5bb661f9e973cd72f0b24525dd0e7bece9993a397
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Filesize
4.1MB
MD54afe589c82a1100a40856143ff31fdfb
SHA1b7b4aaa5a447221a96e4ef2bbd02378584c45f56
SHA256f4e60f24603a6e0ba7216a8b5c13af9970b99de04576d6a6700d032ba1f5c203
SHA512ecd23caa967a8ed463596b099a3e5d1223a8cfadcd2b7bc7c5f5f2b8b334b5f46b5776e119010179bc8f30caf1aab1d12719f4070edab30ddd22a5a8e0945348
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec