glupteba | d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90

Analysis

max time kernel
16s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
17/04/2024, 15:12

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General

Target
d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
Size 4.2MB
Sample240417-slbxcsfa6t
SHA256 d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90
MD5 df663f157c1db97f53ee0a3c2734a394
SHA1 1fd5fb72d4ae78d83f2dfaeaf174b9e1b53e5906
SHA512 1d8cd5646fdd72f4bffa09d0e8f46aad54e2f446e98fa262639ff7dd33063764eb931d118e0bd584dcfaf1a61de718e04afc0fdd98bbb581320569272e3f0b99
SSDEEP 49152:LMHICC+QSI60PU9JxQmCyuoNbdaRjKWhg6Fgwtw907GqxUhn/2B3sxVJ7i+NBPib:IHFCy0PUDbdaR/a+iGqhn/GsxbuoAb
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

glupteba discovery dropper evasion loader persistence upx

Malware Config

Signatures

Glupteba
Glupteba is a modular loader written in Golang with various components.
loader dropper glupteba

Glupteba payload 20 IoCs

resource	yara_rule
behavioral1/memory/1188-2-0x0000000005120000-0x0000000005A0B000-memory.dmp	family_glupteba
behavioral1/memory/1188-3-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral1/memory/4608-56-0x00000000051A0000-0x0000000005A8B000-memory.dmp	family_glupteba
behavioral1/memory/4608-58-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral1/memory/1188-71-0x0000000005120000-0x0000000005A0B000-memory.dmp	family_glupteba
behavioral1/memory/1188-85-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral1/memory/4608-205-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral1/memory/4672-259-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral1/memory/4672-270-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral1/memory/4672-274-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral1/memory/4672-278-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral1/memory/4672-282-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral1/memory/4672-286-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral1/memory/4672-290-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral1/memory/4672-294-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral1/memory/4672-298-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral1/memory/4672-302-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral1/memory/4672-306-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral1/memory/4672-310-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba
behavioral1/memory/4672-314-0x0000000000400000-0x000000000310E000-memory.dmp	family_glupteba

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
5040	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
4672	csrss.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/files/0x00080000000233dc-262.dat	upx
behavioral1/memory/4448-268-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral1/memory/1300-272-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral1/memory/1300-280-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral1/memory/1300-292-0x0000000000400000-0x00000000008DF000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1132431369-515282257-1998160155-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in System32 directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe

Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs

Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\VBoxMiniRdrDN	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
File created	C:\Windows\rss\csrss.exe	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe

Launches sc.exe 1 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
4924	sc.exe

Creates scheduled task(s) 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
5064	schtasks.exe
4368	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)"	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1861 = "Russia TZ 6 Daylight Time"	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time"	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time"	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-841 = "Argentina Daylight Time"	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time"	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time"	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	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\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time"	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-291 = "Central European Daylight Time"	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time"	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time"	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2611 = "Bougainville Daylight Time"	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\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\Disallowed	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time"	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time"	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time"	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1931 = "Russia TZ 11 Daylight Time"	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time"	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	powershell.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
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-432 = "Iran Standard Time"	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time"	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.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,-2061 = "North Korea Daylight Time"	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	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\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time"	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time"	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2321 = "Sakhalin Daylight Time"	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-932 = "Coordinated Universal Time"	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	powershell.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\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time"	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)"	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time"	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe

Suspicious behavior: EnumeratesProcesses 26 IoCs

pid	Process
1676	powershell.exe
1676	powershell.exe
1188	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
1188	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
3156	powershell.exe
3156	powershell.exe
4608	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
4608	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
4608	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
4608	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
4608	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
4608	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
4608	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
4608	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
4608	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
4608	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
1512	powershell.exe
1512	powershell.exe
4476	powershell.exe
4476	powershell.exe
2804	powershell.exe
2804	powershell.exe
4028	powershell.exe
4028	powershell.exe
3400	powershell.exe
3400	powershell.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	1676	powershell.exe
Token: SeDebugPrivilege	1188	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
Token: SeImpersonatePrivilege	1188	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
Token: SeDebugPrivilege	3156	powershell.exe
Token: SeDebugPrivilege	1512	powershell.exe
Token: SeDebugPrivilege	4476	powershell.exe
Token: SeDebugPrivilege	2804	powershell.exe
Token: SeDebugPrivilege	4028	powershell.exe
Token: SeDebugPrivilege	3400	powershell.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 1188 wrote to memory of 1676	1188	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe	90
PID 1188 wrote to memory of 1676	1188	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe	90
PID 1188 wrote to memory of 1676	1188	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe	90
PID 4608 wrote to memory of 3156	4608	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe	98
PID 4608 wrote to memory of 3156	4608	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe	98
PID 4608 wrote to memory of 3156	4608	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe	98
PID 4608 wrote to memory of 456	4608	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe	100
PID 4608 wrote to memory of 456	4608	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe	100
PID 456 wrote to memory of 5040	456	cmd.exe	102
PID 456 wrote to memory of 5040	456	cmd.exe	102
PID 4608 wrote to memory of 1512	4608	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe	103
PID 4608 wrote to memory of 1512	4608	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe	103
PID 4608 wrote to memory of 1512	4608	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe	103
PID 4608 wrote to memory of 4476	4608	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe	105
PID 4608 wrote to memory of 4476	4608	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe	105
PID 4608 wrote to memory of 4476	4608	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe	105
PID 4608 wrote to memory of 4672	4608	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe	107
PID 4608 wrote to memory of 4672	4608	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe	107
PID 4608 wrote to memory of 4672	4608	d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe	107
PID 4672 wrote to memory of 2804	4672	csrss.exe	108
PID 4672 wrote to memory of 2804	4672	csrss.exe	108
PID 4672 wrote to memory of 2804	4672	csrss.exe	108
PID 4672 wrote to memory of 4028	4672	csrss.exe	114
PID 4672 wrote to memory of 4028	4672	csrss.exe	114
PID 4672 wrote to memory of 4028	4672	csrss.exe	114
PID 4672 wrote to memory of 3400	4672	csrss.exe	116
PID 4672 wrote to memory of 3400	4672	csrss.exe	116
PID 4672 wrote to memory of 3400	4672	csrss.exe	116

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.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
"C:\Users\Admin\AppData\Local\Temp\d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1188
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1676
- C:\Users\Admin\AppData\Local\Temp\d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.exe
  "C:\Users\Admin\AppData\Local\Temp\d1299014eaff610445a8be232e6df891d1abe369ef0e3abfb407caf6df09eb90.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:4608
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Drops file in System32 directory
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3156
- - C:\Windows\system32\cmd.exe
    C:\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:456
  - - C:\Windows\system32\netsh.exe
      netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes
      4⤵
      Modifies Windows Firewall
      PID:5040
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Drops file in System32 directory
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1512
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Drops file in System32 directory
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4476
- - C:\Windows\rss\csrss.exe
    C:\Windows\rss\csrss.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:4672
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Drops file in System32 directory
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2804
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
      4⤵
      Creates scheduled task(s)
      PID:5064
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:3984
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Drops file in System32 directory
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4028
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:3400
  - - C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
      C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe taskmgr.exe C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll
      4⤵
      PID:3336
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
      4⤵
      Creates scheduled task(s)
      PID:4368
  - - C:\Windows\windefender.exe
      "C:\Windows\windefender.exe"
      4⤵
      PID:4448
    - - C:\Windows\SysWOW64\cmd.exe
        
        cmd.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⤵
        
        PID:676
      - C:\Windows\SysWOW64\sc.exe
        
        sc 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
        
        PID:4924

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
PID:1300

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Scheduled Task/Job

T1053

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

__PSScriptPolicyTest_qvq5kumz.yut.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qvq5kumz.yut.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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injector.exe

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

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powershell.exe.log

Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Size 2KB
SHA256 92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
MD5 968cb9309758126772781b83adb8a28f
SHA1 8da30e71accf186b2ba11da1797cf67f8f78b47c
SHA512 4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
MD5 SHA1 SHA512

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