glupteba | 2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744

General

Target

2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Size

4.1MB
MD5

e353f117209194d573e7e644db9c20b2
SHA1

ea0ac51a29810939c740a70d2f9523298e44e419
SHA256

2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744
SHA512

9ddd11e3cc4017f9636b819dc571a453696f130ba0306e47a43a624c8d95b4888c3615b7899761281a0a2db31c93d4792df468cde206fa27c41e33289309adff
SSDEEP

98304:rvpOWouYO4mCfghlxU0b33zKayfkyhq08WQ:rvAzuYO4JyHaFq+Q

Score

10^/10

glupteba discovery dropper evasion loader persistence rootkit

Malware Config

Signatures

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

Glupteba payload 17 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2132-134-0x00000000031B0000-0x0000000003A27000-memory.dmp	family_glupteba
behavioral1/memory/2132-135-0x0000000000400000-0x0000000000EA6000-memory.dmp	family_glupteba
behavioral1/memory/2168-140-0x0000000000400000-0x0000000000EA6000-memory.dmp	family_glupteba
behavioral1/memory/3532-148-0x0000000000400000-0x0000000000EA6000-memory.dmp	family_glupteba
behavioral1/memory/3532-149-0x0000000000400000-0x0000000000EA6000-memory.dmp	family_glupteba
behavioral1/memory/3532-150-0x0000000000400000-0x0000000000EA6000-memory.dmp	family_glupteba
behavioral1/memory/3532-151-0x0000000000400000-0x0000000000EA6000-memory.dmp	family_glupteba
behavioral1/memory/3532-152-0x0000000000400000-0x0000000000EA6000-memory.dmp	family_glupteba
behavioral1/memory/3532-153-0x0000000000400000-0x0000000000EA6000-memory.dmp	family_glupteba
behavioral1/memory/3532-154-0x0000000000400000-0x0000000000EA6000-memory.dmp	family_glupteba
behavioral1/memory/3532-155-0x0000000000400000-0x0000000000EA6000-memory.dmp	family_glupteba
behavioral1/memory/3532-156-0x0000000000400000-0x0000000000EA6000-memory.dmp	family_glupteba
behavioral1/memory/3532-157-0x0000000000400000-0x0000000000EA6000-memory.dmp	family_glupteba
behavioral1/memory/3532-158-0x0000000000400000-0x0000000000EA6000-memory.dmp	family_glupteba
behavioral1/memory/3532-159-0x0000000000400000-0x0000000000EA6000-memory.dmp	family_glupteba
behavioral1/memory/3532-160-0x0000000000400000-0x0000000000EA6000-memory.dmp	family_glupteba
behavioral1/memory/3532-161-0x0000000000400000-0x0000000000EA6000-memory.dmp	family_glupteba

Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

3672 netsh.exe
Executes dropped EXE 2 IoCs

Processes:

csrss.exeinjector.exe

pid process

3532 csrss.exe
4228 injector.exe

pid	process
3672	netsh.exe

pid	process
3532	csrss.exe
4228	injector.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.execsrss.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\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
Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102
Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
rootkit evasion

Processes:

csrss.exe

description ioc process

File opened for modification \??\WinMonFS csrss.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

Processes:

2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe

description ioc process

File opened (read-only) \??\VBoxMiniRdrDN 2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe

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

description	ioc	process
File opened (read-only)	\??\VBoxMiniRdrDN	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe

Drops file in Windows directory 2 IoCs

Processes:

2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe

description	ioc	process
File opened for modification	C:\Windows\rss	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
File created	C:\Windows\rss\csrss.exe	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.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
T1053

Processes:

schtasks.exeschtasks.exe

pid process

2012 schtasks.exe
3336 schtasks.exe

pid	process
2012	schtasks.exe
3336	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

Processes:

2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.execsrss.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2512 = "Lord Howe Standard Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-3051 = "Qyzylorda Daylight Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1871 = "Russia TZ 7 Daylight Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-531 = "Sri Lanka Daylight Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2531 = "Chatham Islands Daylight Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2161 = "Altai Daylight Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-335 = "Jordan Standard Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1862 = "Russia TZ 6 Standard Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-722 = "Central Pacific Standard Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1972 = "Belarus Standard Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-961 = "Paraguay Daylight Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-121 = "SA Pacific Daylight Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1911 = "Russia TZ 10 Daylight Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-122 = "SA Pacific Standard Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2752 = "Tomsk Standard Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-742 = "New Zealand Standard Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1912 = "Russia TZ 10 Standard Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2321 = "Sakhalin Daylight Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1822 = "Russia TZ 1 Standard Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time"	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	csrss.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exeinjector.execsrss.exe

pid	process
2132	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
2132	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
2168	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
2168	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
2168	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
2168	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
2168	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
2168	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
2168	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
2168	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
2168	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
2168	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe
3532	csrss.exe
3532	csrss.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe
3532	csrss.exe
3532	csrss.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe
4228	injector.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.execsrss.exe

description	pid	process
Token: SeDebugPrivilege	2132	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Token: SeImpersonatePrivilege	2132	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
Token: SeSystemEnvironmentPrivilege	3532	csrss.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.execmd.execsrss.exe

description	pid	process	target process
PID 2168 wrote to memory of 2416	2168	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe	cmd.exe
PID 2168 wrote to memory of 2416	2168	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe	cmd.exe
PID 2416 wrote to memory of 3672	2416	cmd.exe	netsh.exe
PID 2416 wrote to memory of 3672	2416	cmd.exe	netsh.exe
PID 2168 wrote to memory of 3532	2168	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe	csrss.exe
PID 2168 wrote to memory of 3532	2168	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe	csrss.exe
PID 2168 wrote to memory of 3532	2168	2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe	csrss.exe
PID 3532 wrote to memory of 4228	3532	csrss.exe	injector.exe
PID 3532 wrote to memory of 4228	3532	csrss.exe	injector.exe

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\2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
"C:\Users\Admin\AppData\Local\Temp\2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2132

C:\Users\Admin\AppData\Local\Temp\2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.exe
"C:\Users\Admin\AppData\Local\Temp\2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744.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:2168

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:2416

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:3672

C:\Windows\rss\csrss.exe
C:\Windows\rss\csrss.exe
3⤵
- Executes dropped EXE
- Adds Run key to start application
- Manipulates WinMonFS driver.
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3532

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:2012

C:\Windows\SYSTEM32\schtasks.exe
schtasks /delete /tn ScheduledUpdate /f
4⤵
PID:1352

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:4228

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:3336

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1

T1102

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
Filesize
281KB

MD5
d98e33b66343e7c96158444127a117f6

SHA1
bb716c5509a2bf345c6c1152f6e3e1452d39d50d

SHA256
5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1

SHA512
705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5

Download Submit
C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
Filesize
281KB

MD5
d98e33b66343e7c96158444127a117f6

SHA1
bb716c5509a2bf345c6c1152f6e3e1452d39d50d

SHA256
5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1

SHA512
705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5

Download Submit
C:\Windows\rss\csrss.exe
Filesize
4.1MB

MD5
e353f117209194d573e7e644db9c20b2

SHA1
ea0ac51a29810939c740a70d2f9523298e44e419

SHA256
2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744

SHA512
9ddd11e3cc4017f9636b819dc571a453696f130ba0306e47a43a624c8d95b4888c3615b7899761281a0a2db31c93d4792df468cde206fa27c41e33289309adff

Download Submit
C:\Windows\rss\csrss.exe
Filesize
4.1MB

MD5
e353f117209194d573e7e644db9c20b2

SHA1
ea0ac51a29810939c740a70d2f9523298e44e419

SHA256
2f34762083211116b4c42e2ab68fdd026f244ffc7ce6f8497486bcda265e6744

SHA512
9ddd11e3cc4017f9636b819dc571a453696f130ba0306e47a43a624c8d95b4888c3615b7899761281a0a2db31c93d4792df468cde206fa27c41e33289309adff

Download Submit
memory/2132-134-0x00000000031B0000-0x0000000003A27000-memory.dmp

Filesize
8.5MB

Download
memory/2132-135-0x0000000000400000-0x0000000000EA6000-memory.dmp

Filesize
10.6MB

Download
memory/2168-140-0x0000000000400000-0x0000000000EA6000-memory.dmp

Filesize
10.6MB

Download
memory/3532-151-0x0000000000400000-0x0000000000EA6000-memory.dmp

Filesize
10.6MB

Download
memory/3532-155-0x0000000000400000-0x0000000000EA6000-memory.dmp

Filesize
10.6MB

Download
memory/3532-150-0x0000000000400000-0x0000000000EA6000-memory.dmp

Filesize
10.6MB

Download
memory/3532-148-0x0000000000400000-0x0000000000EA6000-memory.dmp

Filesize
10.6MB

Download
memory/3532-152-0x0000000000400000-0x0000000000EA6000-memory.dmp

Filesize
10.6MB

Download
memory/3532-153-0x0000000000400000-0x0000000000EA6000-memory.dmp

Filesize
10.6MB

Download
memory/3532-154-0x0000000000400000-0x0000000000EA6000-memory.dmp

Filesize
10.6MB

Download
memory/3532-149-0x0000000000400000-0x0000000000EA6000-memory.dmp

Filesize
10.6MB

Download
memory/3532-156-0x0000000000400000-0x0000000000EA6000-memory.dmp

Filesize
10.6MB

Download
memory/3532-157-0x0000000000400000-0x0000000000EA6000-memory.dmp

Filesize
10.6MB

Download
memory/3532-158-0x0000000000400000-0x0000000000EA6000-memory.dmp

Filesize
10.6MB

Download
memory/3532-159-0x0000000000400000-0x0000000000EA6000-memory.dmp

Filesize
10.6MB

Download
memory/3532-160-0x0000000000400000-0x0000000000EA6000-memory.dmp

Filesize
10.6MB

Download
memory/3532-161-0x0000000000400000-0x0000000000EA6000-memory.dmp

Filesize
10.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads