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Analysis
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max time kernel
149s -
max time network
134s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
19/05/2024, 02:06
Static task
static1
Behavioral task
behavioral1
Sample
4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe
Resource
win10v2004-20240426-en
General
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Target
4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe
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Size
4.1MB
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MD5
6f2311a5bcf2f729847a7e165121c3a2
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SHA1
065a8eadd68a4e9d0b0d2720eacaa8344021d0c3
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SHA256
4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b
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SHA512
5c2754a235e8c379c7909956b6241fdc159b993118f5cde10bc61ad60468a144ecf0ce0923e2d7eb04082ac35a0ef285ae7dbb700be7c3280321c5e9fb731238
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SSDEEP
98304:UrbgSYZm0VZ47d2LjXdY+WeqK35WW/TEhU3Gu22X:UrcnZFqd2LRPP3hYhQZX
Malware Config
Signatures
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Glupteba payload 20 IoCs
resource yara_rule behavioral2/memory/4360-2-0x00000000044D0000-0x0000000004DBB000-memory.dmp family_glupteba behavioral2/memory/4360-3-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/4360-96-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/4360-98-0x00000000044D0000-0x0000000004DBB000-memory.dmp family_glupteba behavioral2/memory/924-120-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/4360-148-0x0000000000400000-0x0000000000D1C000-memory.dmp family_glupteba behavioral2/memory/924-201-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/960-202-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/960-214-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/960-217-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/960-221-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/960-226-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/960-230-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/960-233-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/960-237-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/960-242-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/960-246-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/960-249-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/960-253-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba behavioral2/memory/960-258-0x0000000000400000-0x0000000002361000-memory.dmp family_glupteba -
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1528 netsh.exe -
Executes dropped EXE 4 IoCs
pid Process 960 csrss.exe 4716 injector.exe 3880 windefender.exe 3768 windefender.exe -
resource yara_rule behavioral2/files/0x000700000002a9ab-206.dat upx behavioral2/memory/3880-207-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3768-210-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3880-212-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3768-218-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/3768-225-0x0000000000400000-0x00000000008DF000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3433428765-2473475212-4279855560-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe Set value (str) \REGISTRY\USER\S-1-5-21-3433428765-2473475212-4279855560-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" 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 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 -
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 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\windefender.exe csrss.exe File opened for modification C:\Windows\rss 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe File created C:\Windows\rss\csrss.exe 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe File created 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 4380 sc.exe -
pid Process 4496 powershell.exe 1628 powershell.exe 476 powershell.exe 2408 powershell.exe 1272 powershell.exe 4432 powershell.exe 2112 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 1996 schtasks.exe 2780 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,-412 = "E. Africa Standard Time" windefender.exe 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,-1862 = "Russia TZ 6 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time" 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs 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,-2531 = "Chatham Islands 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,-2771 = "Omsk Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2512 = "Lord Howe Standard Time" 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time" 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-752 = "Tonga Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot 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,-171 = "Central Daylight Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-111 = "Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-402 = "Arabic Standard Time" 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time" 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time" 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1971 = "Belarus Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-172 = "Central Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time" 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time" 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-402 = "Arabic Standard Time" windefender.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,-1021 = "Bangladesh Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2512 = "Lord Howe Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time" 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-392 = "Arab Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2841 = "Saratov Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time" 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-432 = "Iran Standard Time" 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1931 = "Russia TZ 11 Daylight Time" 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-351 = "FLE Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1412 = "Syria Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time" 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time" 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2391 = "Aleutian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-441 = "Arabian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-361 = "GTB Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-131 = "US Eastern Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time" 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 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,-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,-2611 = "Bougainville Daylight Time" 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2161 = "Altai Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-572 = "China Standard Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-401 = "Arabic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time" 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time" 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1272 powershell.exe 1272 powershell.exe 4360 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe 4360 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe 4432 powershell.exe 4432 powershell.exe 924 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe 924 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe 924 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe 924 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe 924 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe 924 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe 924 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe 924 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe 924 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe 924 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe 2112 powershell.exe 2112 powershell.exe 4496 powershell.exe 4496 powershell.exe 1628 powershell.exe 1628 powershell.exe 476 powershell.exe 476 powershell.exe 2408 powershell.exe 2408 powershell.exe 4716 injector.exe 4716 injector.exe 4716 injector.exe 4716 injector.exe 4716 injector.exe 4716 injector.exe 960 csrss.exe 960 csrss.exe 4716 injector.exe 4716 injector.exe 4716 injector.exe 4716 injector.exe 4716 injector.exe 4716 injector.exe 960 csrss.exe 960 csrss.exe 4716 injector.exe 4716 injector.exe 960 csrss.exe 960 csrss.exe 4716 injector.exe 4716 injector.exe 4716 injector.exe 4716 injector.exe 4716 injector.exe 4716 injector.exe 4716 injector.exe 4716 injector.exe 4716 injector.exe 4716 injector.exe 4716 injector.exe 4716 injector.exe 4716 injector.exe 4716 injector.exe 4716 injector.exe 4716 injector.exe 4716 injector.exe 4716 injector.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeDebugPrivilege 1272 powershell.exe Token: SeDebugPrivilege 4360 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe Token: SeImpersonatePrivilege 4360 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe Token: SeDebugPrivilege 4432 powershell.exe Token: SeDebugPrivilege 2112 powershell.exe Token: SeDebugPrivilege 4496 powershell.exe Token: SeDebugPrivilege 1628 powershell.exe Token: SeDebugPrivilege 476 powershell.exe Token: SeDebugPrivilege 2408 powershell.exe Token: SeSystemEnvironmentPrivilege 960 csrss.exe Token: SeSecurityPrivilege 4380 sc.exe Token: SeSecurityPrivilege 4380 sc.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 4360 wrote to memory of 1272 4360 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe 82 PID 4360 wrote to memory of 1272 4360 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe 82 PID 4360 wrote to memory of 1272 4360 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe 82 PID 924 wrote to memory of 4432 924 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe 87 PID 924 wrote to memory of 4432 924 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe 87 PID 924 wrote to memory of 4432 924 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe 87 PID 924 wrote to memory of 3488 924 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe 89 PID 924 wrote to memory of 3488 924 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe 89 PID 3488 wrote to memory of 1528 3488 cmd.exe 91 PID 3488 wrote to memory of 1528 3488 cmd.exe 91 PID 924 wrote to memory of 2112 924 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe 92 PID 924 wrote to memory of 2112 924 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe 92 PID 924 wrote to memory of 2112 924 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe 92 PID 924 wrote to memory of 4496 924 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe 94 PID 924 wrote to memory of 4496 924 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe 94 PID 924 wrote to memory of 4496 924 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe 94 PID 924 wrote to memory of 960 924 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe 96 PID 924 wrote to memory of 960 924 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe 96 PID 924 wrote to memory of 960 924 4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe 96 PID 960 wrote to memory of 1628 960 csrss.exe 97 PID 960 wrote to memory of 1628 960 csrss.exe 97 PID 960 wrote to memory of 1628 960 csrss.exe 97 PID 960 wrote to memory of 476 960 csrss.exe 102 PID 960 wrote to memory of 476 960 csrss.exe 102 PID 960 wrote to memory of 476 960 csrss.exe 102 PID 960 wrote to memory of 2408 960 csrss.exe 105 PID 960 wrote to memory of 2408 960 csrss.exe 105 PID 960 wrote to memory of 2408 960 csrss.exe 105 PID 960 wrote to memory of 4716 960 csrss.exe 107 PID 960 wrote to memory of 4716 960 csrss.exe 107 PID 3880 wrote to memory of 4920 3880 windefender.exe 119 PID 3880 wrote to memory of 4920 3880 windefender.exe 119 PID 3880 wrote to memory of 4920 3880 windefender.exe 119 PID 4920 wrote to memory of 4380 4920 cmd.exe 120 PID 4920 wrote to memory of 4380 4920 cmd.exe 120 PID 4920 wrote to memory of 4380 4920 cmd.exe 120 -
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\4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe"C:\Users\Admin\AppData\Local\Temp\4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4360 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1272
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C:\Users\Admin\AppData\Local\Temp\4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.exe"C:\Users\Admin\AppData\Local\Temp\4faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b.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:924 -
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:4432
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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:3488 -
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:1528
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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:2112
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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:4496
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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:960 -
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:1628
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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:1996
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:4628
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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:476
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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:2408
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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:4716
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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:2780
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3880 -
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:4920 -
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:4380
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3768
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
MD50293bca86dbcf91c3648d69424f9dacd
SHA1339d2aa311faa4a5d2081771747a5557ff6b65c7
SHA256e49a2a7caee6a8a63cdac8b8626e11f2cdaf5f0034e012c8c7516a228e9c12af
SHA5127dd40081deefc930a3336264c9dfe5994c6dd4c09a4f4268d8aa0b6a387db615608dea2ebf395cf1037b0c3db47765923f69e70df37fbaed1b7dec933d916656
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD50140c425137b24ce6164d272cc8cd460
SHA1bc45467000f4e49f4bfe17cc6675e8ed4916ce28
SHA2566f6caeed9175a360e26dc6152b889673b719483b014a24afbcd8ce826ab97ae0
SHA5129be55bedcdaee4d0fbf764e8646f8a825997a0b38752e89b4cf7ebec3b7e3b51fecd76f3b3302c6dacaa62229a04ec4f89c80d4f5314cb765062f7bb083b5518
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD55c8b6f079cb3c916cec6e1810e848eef
SHA1f8de3d99a4849c72c0083292826bfc319c854c4e
SHA256d6f4d591f969cce73bea2404b92f698a3e33d0c8728fe9c01196e9b54eb34ca5
SHA51267514adc5cc979dc18eb70248eae7830c6058708ff40263748200920d06ccba86071a7b1381a2fca3451be501c589d59d7b848e0b797989fc2375278688be949
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD57b021ecb7b45f196baec2d5bc9ad96a7
SHA10ff33553aebd4d16205a3f58222260dd92eda3a7
SHA2567a21c286c3ecd33688f262aa6e74f7094f23238adb18db12b34b5d6918810e17
SHA51269c6985afe992a63954af9b8b6e70e950ce4748b899b2bdef1d067d5f90ab7cb5046c69cbbb152d012f5d730fb44671bd09ba56c92b9ceca1bcebc010c38ec8a
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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Filesize19KB
MD55936850330a151e2b9720400326d4fc9
SHA1422ecb596a824bd3a61a4c70cb78b7585c4dceba
SHA256c72b52e9a9cbbc306c5a5c0e15fa160d04673b6cae9c46ec23549498005c523a
SHA51281a5e17cc0741171c612e60567133a27c97b41d4f5b3a866e84ccd580ea4dfca1d08aca4c8e6f9c3bb87d7b4bb19a7f9a95519cf8e35dde3bd91288934744321
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Filesize
4.1MB
MD56f2311a5bcf2f729847a7e165121c3a2
SHA1065a8eadd68a4e9d0b0d2720eacaa8344021d0c3
SHA2564faac6c84647615b80688d7911be67bff99b9d0cba29c27275cef23b7ae2d93b
SHA5125c2754a235e8c379c7909956b6241fdc159b993118f5cde10bc61ad60468a144ecf0ce0923e2d7eb04082ac35a0ef285ae7dbb700be7c3280321c5e9fb731238
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Filesize
2.0MB
MD58e67f58837092385dcf01e8a2b4f5783
SHA1012c49cfd8c5d06795a6f67ea2baf2a082cf8625
SHA256166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
SHA51240d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec