Analysis
- max time kernel
149s - max time network
146s - platform
windows11-21h2_x64 - resource
win11-20240412-en - resource tags
arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system - submitted
19/04/2024, 07:05
Static task
static1
Behavioral task
behavioral1
Sample
cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe
Resource
win10v2004-20240412-en
General
- Target cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe
- Size 4.2MB
- Sample240419-hwj1lsbe55
- SHA256 cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82
- MD5 8ab8d8073604b65786e15774a4ec8dfd
- SHA1 868d142261068a9de28c0f4600e4f2ec99299cec
- SHA512 e8ae3c69e5a212c942d8019b0d3fac552a28429d348029f8f976de60ab3a8bf0f111e120bf353cdbe9bce8c8fe316a4f1bd3b7ca8a3e4be477cdd709c6b9fff1
- SSDEEP 98304:HNkDk7Y2e9fhWY+LbgLFpBVAayCN/CB0J4dlv7S/k29jp/4y:Ok7LeNhW/+FpBVAa19Ce4dlv7wZ4y
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Glupteba payload 20 IoCs
resource yara_rule behavioral2/memory/3452-2-0x0000000005370000-0x0000000005C5B000-memory.dmp family_glupteba behavioral2/memory/3452-3-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/4188-53-0x0000000005230000-0x0000000005B1B000-memory.dmp family_glupteba behavioral2/memory/4188-64-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/3452-67-0x0000000005370000-0x0000000005C5B000-memory.dmp family_glupteba behavioral2/memory/3452-80-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/4188-195-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/3620-218-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/3620-229-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/3620-233-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/3620-237-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/3620-241-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/3620-245-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/3620-249-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/3620-253-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/3620-257-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/3620-261-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/3620-265-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/3620-269-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba behavioral2/memory/3620-273-0x0000000000400000-0x0000000003111000-memory.dmp family_glupteba - Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1608 netsh.exe - Executes dropped EXE 4 IoCs
pid Process 3620 csrss.exe 2060 injector.exe 3020 windefender.exe 1464 windefender.exe -
resource yara_rule behavioral2/files/0x000200000002a9f2-221.dat upx behavioral2/memory/3020-226-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1464-231-0x0000000000400000-0x00000000008DF000-memory.dmp upx behavioral2/memory/1464-239-0x0000000000400000-0x00000000008DF000-memory.dmp upx - Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-801878912-692986033-442676226-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\"" cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe Set value (str) \REGISTRY\USER\S-1-5-21-801878912-692986033-442676226-1000\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.
- 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 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 - 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 cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.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 cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe File created C:\Windows\rss\csrss.exe cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.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 1864 sc.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 2888 schtasks.exe 1468 schtasks.exe - Modifies data under HKEY_USERS 64 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time" cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time" cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time" cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-531 = "Sri Lanka Daylight Time" cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-841 = "Argentina Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-41 = "E. South America Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-381 = "South Africa Daylight Time" windefender.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-434 = "Georgian Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-771 = "Montevideo Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time" cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time" cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1822 = "Russia TZ 1 Standard Time" cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-382 = "South Africa Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time" cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time" cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-911 = "Mauritius Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-962 = "Paraguay Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time" cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2892 = "Sudan Standard Time" cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1022 = "Bangladesh Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-365 = "Middle East Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-602 = "Taipei Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-201 = "US Mountain Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time" cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root 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\26\52C64B7E\@tzres.dll,-81 = "Atlantic Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-292 = "Central European Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time" cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time" cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs powershell.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time" cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time" cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time" cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust 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\26\52C64B7E\@tzres.dll,-1822 = "Russia TZ 1 Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2511 = "Lord Howe Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-215 = "Pacific Standard Time (Mexico)" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time" cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time" cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.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\Root\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ powershell.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-301 = "Romance Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-791 = "SA Western Daylight Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-202 = "US Mountain Standard Time" windefender.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time" cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 5044 powershell.exe 5044 powershell.exe 3452 cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe 3452 cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe 4068 powershell.exe 4068 powershell.exe 4188 cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe 4188 cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe 4188 cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe 4188 cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe 4188 cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe 4188 cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe 4188 cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe 4188 cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe 4188 cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe 4188 cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe 1064 powershell.exe 1064 powershell.exe 1080 powershell.exe 1080 powershell.exe 1592 powershell.exe 1592 powershell.exe 3116 powershell.exe 3116 powershell.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 3620 csrss.exe 3620 csrss.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 3620 csrss.exe 3620 csrss.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 3620 csrss.exe 3620 csrss.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe 2060 injector.exe - Suspicious use of AdjustPrivilegeToken 11 IoCs
description pid Process Token: SeDebugPrivilege 5044 powershell.exe Token: SeDebugPrivilege 3452 cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe Token: SeImpersonatePrivilege 3452 cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe Token: SeDebugPrivilege 4068 powershell.exe Token: SeDebugPrivilege 1064 powershell.exe Token: SeDebugPrivilege 1080 powershell.exe Token: SeDebugPrivilege 1592 powershell.exe Token: SeDebugPrivilege 3116 powershell.exe Token: SeSystemEnvironmentPrivilege 3620 csrss.exe Token: SeSecurityPrivilege 1864 sc.exe Token: SeSecurityPrivilege 1864 sc.exe - Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 3452 wrote to memory of 5044 3452 cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe 82 PID 3452 wrote to memory of 5044 3452 cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe 82 PID 3452 wrote to memory of 5044 3452 cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe 82 PID 4188 wrote to memory of 4068 4188 cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe 87 PID 4188 wrote to memory of 4068 4188 cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe 87 PID 4188 wrote to memory of 4068 4188 cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe 87 PID 4188 wrote to memory of 3852 4188 cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe 89 PID 4188 wrote to memory of 3852 4188 cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe 89 PID 3852 wrote to memory of 1608 3852 cmd.exe 91 PID 3852 wrote to memory of 1608 3852 cmd.exe 91 PID 4188 wrote to memory of 1064 4188 cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe 92 PID 4188 wrote to memory of 1064 4188 cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe 92 PID 4188 wrote to memory of 1064 4188 cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe 92 PID 4188 wrote to memory of 1080 4188 cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe 94 PID 4188 wrote to memory of 1080 4188 cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe 94 PID 4188 wrote to memory of 1080 4188 cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe 94 PID 4188 wrote to memory of 3620 4188 cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe 96 PID 4188 wrote to memory of 3620 4188 cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe 96 PID 4188 wrote to memory of 3620 4188 cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe 96 PID 3620 wrote to memory of 1204 3620 csrss.exe 97 PID 3620 wrote to memory of 1204 3620 csrss.exe 97 PID 3620 wrote to memory of 1204 3620 csrss.exe 97 PID 3620 wrote to memory of 1592 3620 csrss.exe 103 PID 3620 wrote to memory of 1592 3620 csrss.exe 103 PID 3620 wrote to memory of 1592 3620 csrss.exe 103 PID 3620 wrote to memory of 3116 3620 csrss.exe 105 PID 3620 wrote to memory of 3116 3620 csrss.exe 105 PID 3620 wrote to memory of 3116 3620 csrss.exe 105 PID 3620 wrote to memory of 2060 3620 csrss.exe 107 PID 3620 wrote to memory of 2060 3620 csrss.exe 107 PID 3020 wrote to memory of 3336 3020 windefender.exe 113 PID 3020 wrote to memory of 3336 3020 windefender.exe 113 PID 3020 wrote to memory of 3336 3020 windefender.exe 113 PID 3336 wrote to memory of 1864 3336 cmd.exe 114 PID 3336 wrote to memory of 1864 3336 cmd.exe 114 PID 3336 wrote to memory of 1864 3336 cmd.exe 114 - 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\cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe"C:\Users\Admin\AppData\Local\Temp\cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3452 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5044
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C:\Users\Admin\AppData\Local\Temp\cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.exe"C:\Users\Admin\AppData\Local\Temp\cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82.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:4188 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4068
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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:3852 -
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:1608
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1064
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1080
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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:3620 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Modifies data under HKEY_USERS
PID:1204
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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:2888
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵PID:2164
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1592
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3116
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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:2060
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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:1468
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C:\Windows\windefender.exe"C:\Windows\windefender.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3020 -
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:3336 -
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:1864
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C:\Windows\windefender.exeC:\Windows\windefender.exe1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1464
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
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_dcyjldyr.2tt.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
- Size 281KB
- SHA256 5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
- MD5 d98e33b66343e7c96158444127a117f6
- SHA1 bb716c5509a2bf345c6c1152f6e3e1452d39d50d
- SHA512 705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
- SSDEEP 3072:qbHszDaOJ8u2HHFIWr6e29kOnK7qFQ8wMii5I7kGvNjzMuszHshoY46bEydJ+dK9:SA3IlIA6e29vngqS8wMmuooh8z+8F
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
- Size 2KB
- SHA256 e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
- MD5 ac4917a885cf6050b1a483e4bc4d2ea5
- SHA1 b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
- SHA512 092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
- MD5 SHA1 SHA512
- Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
- Size 19KB
- SHA256 aa5445d215b560c38badb546eaa036cc8b6dda9120d1f9433b8f364500f04288
- MD5 7c82ce42163a9f63750996fb733716cc
- SHA1 5aecc2733dc2cc8184a32676d182935d70251e81
- SHA512 fcc5b9710d693b0e8c849ad6eda3722dc800cc07ef014f331715a82f7fc7269941e05285002b6363e1bfa27844f3f905909a8dc51f1eed2fa81dc3738af78e7e
- SSDEEP 384:FTHhhSSJU391g6FRHEMEDHnnNzjQGIHs+NXjg2R+bfzTzpRjNLdF+:RSS2Lg6RPEzNzjfIHs+NzgK+bfvzpbdk
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
- Size 19KB
- SHA256 a4a19f472da2ce365ecd9d49b7e7b87ad769ba64b50a659eb60fbf9b0c26a388
- MD5 2edf963bcc3f4706b12c220b8e762dd8
- SHA1 b4089ef93f6f974e7cb27715afc33030ff20045f
- SHA512 8691cb4e465bd198653bde5560f6c50e46eab471f4fbf160bcedf07df7d51725215055378896dffe3b5db1d9d13469e10b33b1b77e5c2990808ce4df16c12199
- SSDEEP 384:hTHhwS2lNNRAIcopMnHkjWa1KLNXjMHbnWz/nY9jhUd9H:cScNRAUpMEjWa1KLNzMbWzA9lUr
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
- Size 19KB
- SHA256 1c1774e45aa7eed167a1befbc7c91e3eb043fc5209db75311cae530206f319e9
- MD5 5fd359487f563af585c869acc77c0bd3
- SHA1 394ca870e306b4cd8ba223f608d73a3c12c880a8
- SHA512 26547f7b41eff555c292a15d75babc71eee353001b5e0d0819fc9f7e9996dcf91668fd372c3a68ef93da166f4a3689eb178a264c2417621865d5bfee63e0611a
- SSDEEP 384:CTHhz1SStIfkv37LRHEMEo2H4crH12jWa13OLNeogHbIYz/nY9jhUd9H:ESSCsvrLRPEoGTR2jWa13OLNLAbbzA9I
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
- Size 19KB
- SHA256 234cce76d4a6f645f26b8b184b9d5256b67d41350da872c0c59ef095ad06df66
- MD5 af85212348d38dfde3230dd166b3e8cd
- SHA1 2a3f54f44da8b3c3acb86be8e89c355ba617d52a
- SHA512 6f2f8a2b198fafbcf1ec03339f7509308b0c708d4e075d654623db207f511117bcde0063749f8afee1f7a6d9a4f651b10b243fef5cb114b9efc9929843f16671
- SSDEEP 384:6THhwiSt4ztvLrFRitEs0ynNzjF1IC4NXjAHbSz/nY9jhUdxH:9iS4dRQEsbzjF1IC4NzgbSzA9lU/
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\rss\csrss.exe
- Size 4.2MB
- SHA256 cdc7f9acf1e47518d2a77cc4d0b6d41c075733583412d2b8d5d786bcd7f56e82
- MD5 8ab8d8073604b65786e15774a4ec8dfd
- SHA1 868d142261068a9de28c0f4600e4f2ec99299cec
- SHA512 e8ae3c69e5a212c942d8019b0d3fac552a28429d348029f8f976de60ab3a8bf0f111e120bf353cdbe9bce8c8fe316a4f1bd3b7ca8a3e4be477cdd709c6b9fff1
- SSDEEP 98304:HNkDk7Y2e9fhWY+LbgLFpBVAayCN/CB0J4dlv7S/k29jp/4y:Ok7LeNhW/+FpBVAa19Ce4dlv7wZ4y
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\windefender.exe
- Size 2.0MB
- SHA256 166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa
- MD5 8e67f58837092385dcf01e8a2b4f5783
- SHA1 012c49cfd8c5d06795a6f67ea2baf2a082cf8625
- SHA512 40d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec
- SSDEEP 49152:y+SUiJeHpNnxG745Mfi39uXrbcI6DOdVgeuaNjwAx1bJljkv6kXjxNh:fdlHA4yiN8cI6SX3hbJCvhx
- MD5 SHA1 SHA512 SSDEEP