glupteba | fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b

Analysis

max time kernel
150s
max time network
152s
platform
windows11-21h2_x64
resource
win11-20240412-en
resource tags

arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system
submitted
26/04/2024, 03:58

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
Size 4.1MB
Sample240426-ejrcdahg41
SHA256 fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b
MD5 03531611da083e20c3131f47f5923e52
SHA1 cc4ef0b6e9524ec74d4c95bb7dbf7981590f1ee2
SHA512 11927c886935989e3a5f9c44127138b97dbc421b91986ffa5f726c6634d955060fe04b8f1daf2669ff879c6bdccde69a0ffac718247292ade19bddaf996a69f9
SSDEEP 98304:LGRQeQQeLbhY3YC8OTEShpVlj4GtGZsj8hIKq+MMI+rDxx:LGRQUIYIPOTESx5TwMMI+rr
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

glupteba discovery dropper evasion loader persistence rootkit upx

Malware Config

Signatures

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

Glupteba payload 17 IoCs

resource	yara_rule
behavioral2/memory/1596-2-0x0000000005280000-0x0000000005B6B000-memory.dmp	family_glupteba
behavioral2/memory/1596-3-0x0000000000400000-0x0000000002EE0000-memory.dmp	family_glupteba
behavioral2/memory/1596-51-0x0000000000400000-0x0000000002EE0000-memory.dmp	family_glupteba
behavioral2/memory/1596-53-0x0000000005280000-0x0000000005B6B000-memory.dmp	family_glupteba
behavioral2/memory/3300-55-0x0000000000400000-0x0000000002EE0000-memory.dmp	family_glupteba
behavioral2/memory/3300-89-0x0000000000400000-0x0000000002EE0000-memory.dmp	family_glupteba
behavioral2/memory/3300-149-0x0000000000400000-0x0000000002EE0000-memory.dmp	family_glupteba
behavioral2/memory/4896-183-0x0000000000400000-0x0000000002EE0000-memory.dmp	family_glupteba
behavioral2/memory/4896-249-0x0000000000400000-0x0000000002EE0000-memory.dmp	family_glupteba
behavioral2/memory/4896-258-0x0000000000400000-0x0000000002EE0000-memory.dmp	family_glupteba
behavioral2/memory/4896-260-0x0000000000400000-0x0000000002EE0000-memory.dmp	family_glupteba
behavioral2/memory/4896-262-0x0000000000400000-0x0000000002EE0000-memory.dmp	family_glupteba
behavioral2/memory/4896-264-0x0000000000400000-0x0000000002EE0000-memory.dmp	family_glupteba
behavioral2/memory/4896-266-0x0000000000400000-0x0000000002EE0000-memory.dmp	family_glupteba
behavioral2/memory/4896-268-0x0000000000400000-0x0000000002EE0000-memory.dmp	family_glupteba
behavioral2/memory/4896-270-0x0000000000400000-0x0000000002EE0000-memory.dmp	family_glupteba
behavioral2/memory/4896-272-0x0000000000400000-0x0000000002EE0000-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
4800	netsh.exe

Executes dropped EXE 4 IoCs

pid	Process
4896	csrss.exe
788	injector.exe
1904	windefender.exe
3104	windefender.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000200000002aa1a-252.dat	upx
behavioral2/memory/1904-256-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/3104-259-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral2/memory/3104-263-0x0000000000400000-0x00000000008DF000-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-1-5-21-801765966-3955847401-2235691403-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-801765966-3955847401-2235691403-1000\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 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
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.

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\VBoxMiniRdrDN	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.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	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
File created	C:\Windows\rss\csrss.exe	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.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
3656	sc.exe

Program crash 6 IoCs

pid	pid_target	Process	procid_target
3288	1596	WerFault.exe	77
1624	1596	WerFault.exe	77
4340	1596	WerFault.exe	77
644	3300	WerFault.exe	85
4428	3300	WerFault.exe	85
4832	3300	WerFault.exe	85

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
1940	schtasks.exe
4100	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time"	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1801 = "Line Islands Daylight Time"	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time"	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-332 = "E. Europe Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-191 = "Mountain Daylight 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"	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time"	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	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\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time"	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1892 = "Russia TZ 3 Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-42 = "E. South America Standard Time"	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.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"	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1021 = "Bangladesh Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-372 = "Jerusalem Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-741 = "New Zealand Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2841 = "Saratov Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time"	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time"	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	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\@tzres.dll,-51 = "Greenland Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2061 = "North Korea Daylight Time"	windefender.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time"	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-282 = "Central Europe Standard Time"	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-161 = "Central Daylight Time"	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time"	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1862 = "Russia TZ 6 Standard Time"	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time"	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-651 = "AUS Central Daylight Time"	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time"	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time"	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.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\@tzres.dll,-791 = "SA Western Daylight Time"	windefender.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,-772 = "Montevideo Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2571 = "Turks and Caicos Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1662 = "Bahia Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time"	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time"	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2062 = "North Korea Standard Time"	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1501 = "Turkey Daylight Time"	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-742 = "New Zealand Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-531 = "Sri Lanka Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time"	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	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\@tzres.dll,-571 = "China Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-891 = "Morocco Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-542 = "Myanmar Standard Time"	windefender.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1000	powershell.exe
1000	powershell.exe
1596	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
1596	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
560	powershell.exe
560	powershell.exe
3300	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
3300	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
3300	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
3300	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
3300	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
3300	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
3300	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
3300	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
3300	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
3300	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
1864	powershell.exe
1864	powershell.exe
2288	powershell.exe
2288	powershell.exe
5076	powershell.exe
5076	powershell.exe
2536	powershell.exe
2536	powershell.exe
1284	powershell.exe
1284	powershell.exe
788	injector.exe
788	injector.exe
788	injector.exe
788	injector.exe
788	injector.exe
788	injector.exe
4896	csrss.exe
4896	csrss.exe
788	injector.exe
788	injector.exe
788	injector.exe
788	injector.exe
788	injector.exe
788	injector.exe
4896	csrss.exe
4896	csrss.exe
788	injector.exe
788	injector.exe
788	injector.exe
788	injector.exe
4896	csrss.exe
4896	csrss.exe
788	injector.exe
788	injector.exe
788	injector.exe
788	injector.exe
788	injector.exe
788	injector.exe
788	injector.exe
788	injector.exe
788	injector.exe
788	injector.exe
788	injector.exe
788	injector.exe
788	injector.exe
788	injector.exe
788	injector.exe
788	injector.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeDebugPrivilege	1000	powershell.exe
Token: SeDebugPrivilege	1596	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
Token: SeImpersonatePrivilege	1596	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
Token: SeDebugPrivilege	560	powershell.exe
Token: SeDebugPrivilege	1864	powershell.exe
Token: SeDebugPrivilege	2288	powershell.exe
Token: SeDebugPrivilege	5076	powershell.exe
Token: SeDebugPrivilege	2536	powershell.exe
Token: SeDebugPrivilege	1284	powershell.exe
Token: SeSystemEnvironmentPrivilege	4896	csrss.exe
Token: SeSecurityPrivilege	3656	sc.exe
Token: SeSecurityPrivilege	3656	sc.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1596 wrote to memory of 1000	1596	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe	81
PID 1596 wrote to memory of 1000	1596	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe	81
PID 1596 wrote to memory of 1000	1596	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe	81
PID 3300 wrote to memory of 560	3300	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe	93
PID 3300 wrote to memory of 560	3300	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe	93
PID 3300 wrote to memory of 560	3300	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe	93
PID 3300 wrote to memory of 8	3300	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe	95
PID 3300 wrote to memory of 8	3300	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe	95
PID 8 wrote to memory of 4800	8	cmd.exe	97
PID 8 wrote to memory of 4800	8	cmd.exe	97
PID 3300 wrote to memory of 1864	3300	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe	98
PID 3300 wrote to memory of 1864	3300	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe	98
PID 3300 wrote to memory of 1864	3300	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe	98
PID 3300 wrote to memory of 2288	3300	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe	100
PID 3300 wrote to memory of 2288	3300	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe	100
PID 3300 wrote to memory of 2288	3300	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe	100
PID 3300 wrote to memory of 4896	3300	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe	102
PID 3300 wrote to memory of 4896	3300	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe	102
PID 3300 wrote to memory of 4896	3300	fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe	102
PID 4896 wrote to memory of 5076	4896	csrss.exe	109
PID 4896 wrote to memory of 5076	4896	csrss.exe	109
PID 4896 wrote to memory of 5076	4896	csrss.exe	109
PID 4896 wrote to memory of 2536	4896	csrss.exe	114
PID 4896 wrote to memory of 2536	4896	csrss.exe	114
PID 4896 wrote to memory of 2536	4896	csrss.exe	114
PID 4896 wrote to memory of 1284	4896	csrss.exe	117
PID 4896 wrote to memory of 1284	4896	csrss.exe	117
PID 4896 wrote to memory of 1284	4896	csrss.exe	117
PID 4896 wrote to memory of 788	4896	csrss.exe	119
PID 4896 wrote to memory of 788	4896	csrss.exe	119
PID 1904 wrote to memory of 2404	1904	windefender.exe	125
PID 1904 wrote to memory of 2404	1904	windefender.exe	125
PID 1904 wrote to memory of 2404	1904	windefender.exe	125
PID 2404 wrote to memory of 3656	2404	cmd.exe	126
PID 2404 wrote to memory of 3656	2404	cmd.exe	126
PID 2404 wrote to memory of 3656	2404	cmd.exe	126

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\fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
"C:\Users\Admin\AppData\Local\Temp\fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1596
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1000
- C:\Users\Admin\AppData\Local\Temp\fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.exe
  "C:\Users\Admin\AppData\Local\Temp\fbd0606b08bb98e955f5815d30cdc8e4069ec731b7dcee2c650eb4538cbfe30b.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:3300
- - 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:560
- - 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:8
  - - 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:4800
- - 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:1864
- - 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:2288
- - 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:4896
  - - 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:5076
  - - 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:1940
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:4780
  - - 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:2536
  - - 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:1284
  - - 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:788
  - - 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:4100
  - - C:\Windows\windefender.exe
      "C:\Windows\windefender.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:1904
    - - 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:2404
      - 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:3656
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3300 -s 696
    3⤵
    - Program crash
    PID:644
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3300 -s 616
    3⤵
    - Program crash
    PID:4428
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3300 -s 724
    3⤵
    - Program crash
    PID:4832
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1596 -s 976
  2⤵
  - Program crash
  PID:3288
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1596 -s 660
  2⤵
  - Program crash
  PID:1624
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1596 -s 984
  2⤵
  - Program crash
  PID:4340

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1596 -ip 1596
1⤵
PID:236

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 1596 -ip 1596
1⤵
PID:2020

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1596 -ip 1596
1⤵
PID:1040

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3300 -ip 3300
1⤵
PID:2220

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3300 -ip 3300
1⤵
PID:2744

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3300 -ip 3300
1⤵
PID:2244

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3104

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

Loading Replay Monitor...

Downloads

__PSScriptPolicyTest_d1cbfudp.xxv.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_d1cbfudp.xxv.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

Submit Download

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

Submit Download

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

Submit Download