glupteba | 1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9

Analysis

max time kernel
149s
max time network
126s
platform
windows11-21h2_x64
resource
win11-20240508-en
resource tags

arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
submitted
17/05/2024, 16:11

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General

Target
1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
Size 4.1MB
Sample240517-tnelpsff99
SHA256 1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9
MD5 33d33620abc162ce5a2d5ce7cbe6b08e
SHA1 f11900837370b84aceaeb4ac9b9abe87e63bab58
SHA512 2833ad91083a09e5522ffdd55fb8f268b5ef78bf7c637353ae627fd189b754636932c9cab80cc4be0381bcc46ee3c08a55e17a6fde16ebd0bf60a06f589df1df
SSDEEP 98304:ExfL9oyIkrku4AJMBJNRxIbk0RddEjk9Pc8cg301s2mGv/:yRrVrv4XbNRWhj2o9k8f3CspGv/
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

glupteba discovery dropper evasion execution loader persistence rootkit 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
behavioral2/memory/1856-2-0x0000000004D30000-0x000000000561B000-memory.dmp	family_glupteba
behavioral2/memory/1856-3-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/1856-53-0x0000000004D30000-0x000000000561B000-memory.dmp	family_glupteba
behavioral2/memory/1856-54-0x0000000000400000-0x0000000000D1C000-memory.dmp	family_glupteba
behavioral2/memory/1856-52-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/3212-122-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/3212-128-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/1820-205-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/1820-215-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/1820-216-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/1820-218-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/1820-220-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/1820-223-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/1820-224-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/1820-226-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/1820-228-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/1820-231-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/1820-232-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/1820-234-0x0000000000400000-0x0000000002B0D000-memory.dmp	family_glupteba
behavioral2/memory/1820-236-0x0000000000400000-0x0000000002B0D000-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
2112	netsh.exe

Executes dropped EXE 4 IoCs

pid	Process
1820	csrss.exe
1380	injector.exe
2032	windefender.exe
3544	windefender.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000200000002a9e5-208.dat	upx
behavioral2/memory/2032-209-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/3544-212-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/2032-214-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/3544-217-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/3544-221-0x0000000000400000-0x00000000008DF000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\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.
discovery

Query Registry
T1012

Manipulates WinMonFS driver. 1 IoCs

Roottkits write to WinMonFS to hide directories/files from being detected.

rootkit evasion

description	ioc	Process
File opened for modification	\??\WinMonFS	csrss.exe

Drops file in System32 directory 7 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
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	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
File created	C:\Windows\rss\csrss.exe	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
File created	C:\Windows\windefender.exe	csrss.exe
File opened for modification	C:\Windows\windefender.exe	csrss.exe

Launches sc.exe 1 IoCs

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

pid	Process
1176	sc.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 7 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2244	powershell.exe
740	powershell.exe
3344	powershell.exe
5008	powershell.exe
1668	powershell.exe
3924	powershell.exe
3304	powershell.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3692	1856	WerFault.exe	76

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
1716	schtasks.exe
540	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\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time"	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time"	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-432 = "Iran Standard Time"	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time"	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)"	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-3052 = "Qyzylorda Standard Time"	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.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,-2871 = "Magallanes Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time"	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-221 = "Alaskan Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-211 = "Pacific Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-562 = "SE Asia Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-52 = "Greenland Standard Time"	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-432 = "Iran Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)"	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1472 = "Magadan Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-771 = "Montevideo Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-791 = "SA Western Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time"	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time"	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time"	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time"	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1022 = "Bangladesh Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-212 = "Pacific Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time"	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time"	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2752 = "Tomsk Standard Time"	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time"	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time"	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time"	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-32 = "Mid-Atlantic Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-742 = "New Zealand Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)"	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-201 = "US Mountain Daylight Time"	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-449 = "Azerbaijan Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-532 = "Sri Lanka Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-42 = "E. South America Standard Time"	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-1872 = "Russia TZ 7 Standard Time"	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-2061 = "North Korea Daylight Time"	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	powershell.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,-662 = "Cen. Australia Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-104 = "Central Brazilian Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-772 = "Montevideo 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"	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-2001 = "Cabo Verde Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-51 = "Greenland Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-1932 = "Russia TZ 11 Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time"	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time"	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@tzres.dll,-672 = "AUS Eastern Standard Time"	windefender.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3344	powershell.exe
3344	powershell.exe
1856	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
1856	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
5008	powershell.exe
5008	powershell.exe
3212	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
3212	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
3212	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
3212	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
3212	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
3212	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
3212	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
3212	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
3212	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
3212	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
1668	powershell.exe
1668	powershell.exe
3924	powershell.exe
3924	powershell.exe
3304	powershell.exe
3304	powershell.exe
2244	powershell.exe
2244	powershell.exe
740	powershell.exe
740	powershell.exe
1380	injector.exe
1380	injector.exe
1380	injector.exe
1380	injector.exe
1380	injector.exe
1380	injector.exe
1820	csrss.exe
1820	csrss.exe
1380	injector.exe
1380	injector.exe
1380	injector.exe
1380	injector.exe
1380	injector.exe
1380	injector.exe
1820	csrss.exe
1820	csrss.exe
1380	injector.exe
1380	injector.exe
1820	csrss.exe
1820	csrss.exe
1380	injector.exe
1380	injector.exe
1380	injector.exe
1380	injector.exe
1380	injector.exe
1380	injector.exe
1380	injector.exe
1380	injector.exe
1380	injector.exe
1380	injector.exe
1380	injector.exe
1380	injector.exe
1380	injector.exe
1380	injector.exe
1380	injector.exe
1380	injector.exe
1380	injector.exe
1380	injector.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeDebugPrivilege	3344	powershell.exe
Token: SeDebugPrivilege	1856	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
Token: SeImpersonatePrivilege	1856	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
Token: SeDebugPrivilege	5008	powershell.exe
Token: SeDebugPrivilege	1668	powershell.exe
Token: SeDebugPrivilege	3924	powershell.exe
Token: SeDebugPrivilege	3304	powershell.exe
Token: SeDebugPrivilege	2244	powershell.exe
Token: SeDebugPrivilege	740	powershell.exe
Token: SeSystemEnvironmentPrivilege	1820	csrss.exe
Token: SeSecurityPrivilege	1176	sc.exe
Token: SeSecurityPrivilege	1176	sc.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1856 wrote to memory of 3344	1856	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe	78
PID 1856 wrote to memory of 3344	1856	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe	78
PID 1856 wrote to memory of 3344	1856	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe	78
PID 3212 wrote to memory of 5008	3212	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe	86
PID 3212 wrote to memory of 5008	3212	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe	86
PID 3212 wrote to memory of 5008	3212	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe	86
PID 3212 wrote to memory of 736	3212	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe	88
PID 3212 wrote to memory of 736	3212	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe	88
PID 736 wrote to memory of 2112	736	cmd.exe	90
PID 736 wrote to memory of 2112	736	cmd.exe	90
PID 3212 wrote to memory of 1668	3212	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe	91
PID 3212 wrote to memory of 1668	3212	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe	91
PID 3212 wrote to memory of 1668	3212	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe	91
PID 3212 wrote to memory of 3924	3212	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe	93
PID 3212 wrote to memory of 3924	3212	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe	93
PID 3212 wrote to memory of 3924	3212	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe	93
PID 3212 wrote to memory of 1820	3212	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe	95
PID 3212 wrote to memory of 1820	3212	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe	95
PID 3212 wrote to memory of 1820	3212	1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe	95
PID 1820 wrote to memory of 3304	1820	csrss.exe	96
PID 1820 wrote to memory of 3304	1820	csrss.exe	96
PID 1820 wrote to memory of 3304	1820	csrss.exe	96
PID 1820 wrote to memory of 2244	1820	csrss.exe	102
PID 1820 wrote to memory of 2244	1820	csrss.exe	102
PID 1820 wrote to memory of 2244	1820	csrss.exe	102
PID 1820 wrote to memory of 740	1820	csrss.exe	104
PID 1820 wrote to memory of 740	1820	csrss.exe	104
PID 1820 wrote to memory of 740	1820	csrss.exe	104
PID 1820 wrote to memory of 1380	1820	csrss.exe	106
PID 1820 wrote to memory of 1380	1820	csrss.exe	106
PID 2032 wrote to memory of 3560	2032	windefender.exe	112
PID 2032 wrote to memory of 3560	2032	windefender.exe	112
PID 2032 wrote to memory of 3560	2032	windefender.exe	112
PID 3560 wrote to memory of 1176	3560	cmd.exe	113
PID 3560 wrote to memory of 1176	3560	cmd.exe	113
PID 3560 wrote to memory of 1176	3560	cmd.exe	113

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
"C:\Users\Admin\AppData\Local\Temp\1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1856
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3344
- C:\Users\Admin\AppData\Local\Temp\1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.exe
  "C:\Users\Admin\AppData\Local\Temp\1ead2001a571e98060c17cbd26a5ddbb11335f3334991e2c965f613791880ab9.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:3212
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Drops file in System32 directory
    - Command and Scripting Interpreter: PowerShell
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:5008
- - 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:736
  - - 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:2112
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Drops file in System32 directory
    - Command and Scripting Interpreter: PowerShell
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1668
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Drops file in System32 directory
    - Command and Scripting Interpreter: PowerShell
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3924
- - C:\Windows\rss\csrss.exe
    C:\Windows\rss\csrss.exe
    3⤵
    - 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:1820
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Drops file in System32 directory
      Command and Scripting Interpreter: PowerShell
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:3304
  - - 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:540
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:3700
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Drops file in System32 directory
      Command and Scripting Interpreter: PowerShell
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2244
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Drops file in System32 directory
      Command and Scripting Interpreter: PowerShell
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:740
  - - 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⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      PID:1380
  - - 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:1716
  - - C:\Windows\windefender.exe
      "C:\Windows\windefender.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:2032
    - - 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⤵
        Suspicious use of WriteProcessMemory
        
        PID:3560
      - 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
        Suspicious use of AdjustPrivilegeToken
        
        PID:1176
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1856 -s 844
  2⤵
  - Program crash
  PID:3692

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1856 -ip 1856
1⤵
PID:4864

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3544

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

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_b2ywpyde.jl2.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_b2ywpyde.jl2.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 e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9
MD5 ac4917a885cf6050b1a483e4bc4d2ea5
SHA1 b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f
SHA512 092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d
MD5 SHA1 SHA512

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