glupteba | fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
19/04/2024, 10:10

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe
Size 4.2MB
Sample240419-l7d6aafg21
SHA256 fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a
MD5 d79c2c795dbca8e63383848e2171cd1c
SHA1 b864f252bba2ace0c944e470e8b73eb2b1bea468
SHA512 54e1ea46c2a2b923caf545abd5cad0388d2e8c2d7558b58a4d9c02baa78ec1ced97a01f808978d8066a183834804abf4a358ac63dde61f76d704ce1162f08c4d
SSDEEP 98304:ZkCzxGX67jziInOwT+p9cyq2eBMnsC4wev2TDFlm5IHuXjx:LAXIiaT+p9uBMsCfecmJ1
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 20 IoCs

resource	yara_rule
behavioral1/memory/468-2-0x0000000005280000-0x0000000005B6B000-memory.dmp	family_glupteba
behavioral1/memory/468-3-0x0000000000400000-0x000000000310F000-memory.dmp	family_glupteba
behavioral1/memory/888-55-0x0000000005220000-0x0000000005B0B000-memory.dmp	family_glupteba
behavioral1/memory/888-56-0x0000000000400000-0x000000000310F000-memory.dmp	family_glupteba
behavioral1/memory/468-81-0x0000000000400000-0x000000000310F000-memory.dmp	family_glupteba
behavioral1/memory/888-133-0x0000000000400000-0x000000000310F000-memory.dmp	family_glupteba
behavioral1/memory/888-216-0x0000000000400000-0x000000000310F000-memory.dmp	family_glupteba
behavioral1/memory/2816-252-0x0000000000400000-0x000000000310F000-memory.dmp	family_glupteba
behavioral1/memory/2816-263-0x0000000000400000-0x000000000310F000-memory.dmp	family_glupteba
behavioral1/memory/2816-267-0x0000000000400000-0x000000000310F000-memory.dmp	family_glupteba
behavioral1/memory/2816-271-0x0000000000400000-0x000000000310F000-memory.dmp	family_glupteba
behavioral1/memory/2816-275-0x0000000000400000-0x000000000310F000-memory.dmp	family_glupteba
behavioral1/memory/2816-279-0x0000000000400000-0x000000000310F000-memory.dmp	family_glupteba
behavioral1/memory/2816-283-0x0000000000400000-0x000000000310F000-memory.dmp	family_glupteba
behavioral1/memory/2816-287-0x0000000000400000-0x000000000310F000-memory.dmp	family_glupteba
behavioral1/memory/2816-291-0x0000000000400000-0x000000000310F000-memory.dmp	family_glupteba
behavioral1/memory/2816-295-0x0000000000400000-0x000000000310F000-memory.dmp	family_glupteba
behavioral1/memory/2816-299-0x0000000000400000-0x000000000310F000-memory.dmp	family_glupteba
behavioral1/memory/2816-303-0x0000000000400000-0x000000000310F000-memory.dmp	family_glupteba
behavioral1/memory/2816-307-0x0000000000400000-0x000000000310F000-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
3500	netsh.exe

Executes dropped EXE 4 IoCs

pid	Process
2816	csrss.exe
2036	injector.exe
1968	windefender.exe
1628	windefender.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0008000000023411-255.dat	upx
behavioral1/memory/1968-260-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral1/memory/1628-266-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral1/memory/1628-273-0x0000000000400000-0x00000000008DF000-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-1-5-21-2177723727-746291240-1644359950-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	csrss.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.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	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe
File created	C:\Windows\rss\csrss.exe	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.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
2340	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
2604	schtasks.exe
2500	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2872 = "Magallanes Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1931 = "Russia TZ 11 Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time"	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time"	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time"	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2451 = "Saint Pierre Daylight Time"	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-291 = "Central European Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1841 = "Russia TZ 4 Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-334 = "Jordan Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time"	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time"	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time"	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1801 = "Line Islands Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-32 = "Mid-Atlantic Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1831 = "Russia TZ 2 Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2941 = "Sao Tome Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time"	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.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\@tzres.dll,-841 = "Argentina Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2042 = "Eastern Standard Time (Mexico)"	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,-371 = "Jerusalem Daylight Time"	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time"	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1501 = "Turkey Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)"	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-201 = "US Mountain Daylight Time"	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-282 = "Central Europe Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2591 = "Tocantins Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time"	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-52 = "Greenland Standard 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
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2842 = "Saratov Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time"	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2372 = "Easter Island Standard Time"	windefender.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-281 = "Central Europe Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-364 = "Middle East Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-182 = "Mountain Standard Time (Mexico)"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2892 = "Sudan Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2411 = "Marquesas Daylight Time"	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\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\C:\Windows\system32\,@tzres.dll,-1842 = "Russia TZ 4 Standard Time"	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2572 = "Turks and Caicos Standard Time"	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-385 = "Namibia Standard Time"	windefender.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time"	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-342 = "Egypt Standard Time"	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time"	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time"	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-222 = "Alaskan Standard Time"	windefender.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2892	powershell.exe
2892	powershell.exe
468	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe
468	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe
1376	powershell.exe
1376	powershell.exe
888	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe
888	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe
888	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe
888	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe
888	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe
888	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe
888	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe
888	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe
888	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe
888	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe
3256	powershell.exe
3256	powershell.exe
3080	powershell.exe
3080	powershell.exe
4488	powershell.exe
4488	powershell.exe
4656	powershell.exe
4656	powershell.exe
4512	powershell.exe
4512	powershell.exe
2036	injector.exe
2036	injector.exe
2036	injector.exe
2036	injector.exe
2036	injector.exe
2036	injector.exe
2816	csrss.exe
2816	csrss.exe
2036	injector.exe
2036	injector.exe
2036	injector.exe
2036	injector.exe
2036	injector.exe
2036	injector.exe
2816	csrss.exe
2816	csrss.exe
2036	injector.exe
2036	injector.exe
2816	csrss.exe
2816	csrss.exe
2036	injector.exe
2036	injector.exe
2036	injector.exe
2036	injector.exe
2036	injector.exe
2036	injector.exe
2036	injector.exe
2036	injector.exe
2036	injector.exe
2036	injector.exe
2036	injector.exe
2036	injector.exe
2036	injector.exe
2036	injector.exe
2036	injector.exe
2036	injector.exe
2036	injector.exe
2036	injector.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeDebugPrivilege	2892	powershell.exe
Token: SeDebugPrivilege	468	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe
Token: SeImpersonatePrivilege	468	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe
Token: SeDebugPrivilege	1376	powershell.exe
Token: SeDebugPrivilege	3256	powershell.exe
Token: SeDebugPrivilege	3080	powershell.exe
Token: SeDebugPrivilege	4488	powershell.exe
Token: SeDebugPrivilege	4656	powershell.exe
Token: SeDebugPrivilege	4512	powershell.exe
Token: SeSystemEnvironmentPrivilege	2816	csrss.exe
Token: SeSecurityPrivilege	2340	sc.exe
Token: SeSecurityPrivilege	2340	sc.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 468 wrote to memory of 2892	468	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe	91
PID 468 wrote to memory of 2892	468	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe	91
PID 468 wrote to memory of 2892	468	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe	91
PID 888 wrote to memory of 1376	888	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe	98
PID 888 wrote to memory of 1376	888	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe	98
PID 888 wrote to memory of 1376	888	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe	98
PID 888 wrote to memory of 4308	888	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe	100
PID 888 wrote to memory of 4308	888	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe	100
PID 4308 wrote to memory of 3500	4308	cmd.exe	102
PID 4308 wrote to memory of 3500	4308	cmd.exe	102
PID 888 wrote to memory of 3256	888	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe	103
PID 888 wrote to memory of 3256	888	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe	103
PID 888 wrote to memory of 3256	888	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe	103
PID 888 wrote to memory of 3080	888	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe	105
PID 888 wrote to memory of 3080	888	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe	105
PID 888 wrote to memory of 3080	888	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe	105
PID 888 wrote to memory of 2816	888	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe	107
PID 888 wrote to memory of 2816	888	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe	107
PID 888 wrote to memory of 2816	888	fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe	107
PID 2816 wrote to memory of 4488	2816	csrss.exe	108
PID 2816 wrote to memory of 4488	2816	csrss.exe	108
PID 2816 wrote to memory of 4488	2816	csrss.exe	108
PID 2816 wrote to memory of 4656	2816	csrss.exe	114
PID 2816 wrote to memory of 4656	2816	csrss.exe	114
PID 2816 wrote to memory of 4656	2816	csrss.exe	114
PID 2816 wrote to memory of 4512	2816	csrss.exe	116
PID 2816 wrote to memory of 4512	2816	csrss.exe	116
PID 2816 wrote to memory of 4512	2816	csrss.exe	116
PID 2816 wrote to memory of 2036	2816	csrss.exe	118
PID 2816 wrote to memory of 2036	2816	csrss.exe	118
PID 1968 wrote to memory of 1716	1968	windefender.exe	124
PID 1968 wrote to memory of 1716	1968	windefender.exe	124
PID 1968 wrote to memory of 1716	1968	windefender.exe	124
PID 1716 wrote to memory of 2340	1716	cmd.exe	125
PID 1716 wrote to memory of 2340	1716	cmd.exe	125
PID 1716 wrote to memory of 2340	1716	cmd.exe	125

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\fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe
"C:\Users\Admin\AppData\Local\Temp\fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:468
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2892
- C:\Users\Admin\AppData\Local\Temp\fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.exe
  "C:\Users\Admin\AppData\Local\Temp\fd5e6dacf0510cd35a94ae2f8ca1b8b2128e3921658464155705ddcdd2427b9a.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:888
- - 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:1376
- - 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:4308
  - - 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:3500
- - 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:3256
- - 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:3080
- - 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:2816
  - - 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:4488
  - - 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:2604
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:4752
  - - 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:4656
  - - 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:4512
  - - 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:2036
  - - 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:2500
  - - C:\Windows\windefender.exe
      "C:\Windows\windefender.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:1968
    - - 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:1716
      - 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:2340

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:1628

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_mqxqi23o.bo5.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mqxqi23o.bo5.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 6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69
MD5 3d086a433708053f9bf9523e1d87a4e8
SHA1 b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28
SHA512 931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd
MD5 SHA1 SHA512

Submit Download