glupteba | 8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0

General

Target

8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Size

4.1MB
MD5

0482b9930bc8b94c7db772a4cdb34619
SHA1

b7f0384110874d1a4508895ee575640afb84b5c1
SHA256

8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0
SHA512

46b3fd0e1410582e5333653d6911bc327074791d31fa2e979f0cb25d4c89b4b2d7a8f85a233ce97ecd01ba302fe647cbc450e4a77678ba0a20eb2085db5a9b17
SSDEEP

98304:hsga/db54hpOTZGP3wo0ZMln15HTLEPxA/IhAljsmV:hsga/1gj04zaA/Io7

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 18 IoCs

Processes:

resource	yara_rule
behavioral1/memory/3040-134-0x0000000003120000-0x0000000003997000-memory.dmp	family_glupteba
behavioral1/memory/3040-135-0x0000000000400000-0x0000000000EA6000-memory.dmp	family_glupteba
behavioral1/memory/3040-137-0x0000000003120000-0x0000000003997000-memory.dmp	family_glupteba
behavioral1/memory/1248-141-0x0000000000400000-0x0000000000EA6000-memory.dmp	family_glupteba
behavioral1/memory/3292-149-0x0000000000400000-0x0000000000EA6000-memory.dmp	family_glupteba
behavioral1/memory/3292-150-0x0000000000400000-0x0000000000EA6000-memory.dmp	family_glupteba
behavioral1/memory/3292-151-0x0000000000400000-0x0000000000EA6000-memory.dmp	family_glupteba
behavioral1/memory/3292-152-0x0000000000400000-0x0000000000EA6000-memory.dmp	family_glupteba
behavioral1/memory/3292-153-0x0000000000400000-0x0000000000EA6000-memory.dmp	family_glupteba
behavioral1/memory/3292-154-0x0000000000400000-0x0000000000EA6000-memory.dmp	family_glupteba
behavioral1/memory/3292-155-0x0000000000400000-0x0000000000EA6000-memory.dmp	family_glupteba
behavioral1/memory/3292-156-0x0000000000400000-0x0000000000EA6000-memory.dmp	family_glupteba
behavioral1/memory/3292-157-0x0000000000400000-0x0000000000EA6000-memory.dmp	family_glupteba
behavioral1/memory/3292-158-0x0000000000400000-0x0000000000EA6000-memory.dmp	family_glupteba
behavioral1/memory/3292-159-0x0000000000400000-0x0000000000EA6000-memory.dmp	family_glupteba
behavioral1/memory/3292-160-0x0000000000400000-0x0000000000EA6000-memory.dmp	family_glupteba
behavioral1/memory/3292-161-0x0000000000400000-0x0000000000EA6000-memory.dmp	family_glupteba
behavioral1/memory/3292-162-0x0000000000400000-0x0000000000EA6000-memory.dmp	family_glupteba

Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

232 netsh.exe
Executes dropped EXE 2 IoCs

Processes:

csrss.exeinjector.exe

pid process

3292 csrss.exe
3880 injector.exe

pid	process
232	netsh.exe

pid	process
3292	csrss.exe
3880	injector.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

csrss.exe8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	csrss.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.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

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:

8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe

description ioc process

File opened (read-only) \??\VBoxMiniRdrDN 8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe

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

description	ioc	process
File opened (read-only)	\??\VBoxMiniRdrDN	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe

Drops file in Windows directory 2 IoCs

Processes:

8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe

description	ioc	process
File opened for modification	C:\Windows\rss	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
File created	C:\Windows\rss\csrss.exe	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.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

2828 schtasks.exe
4028 schtasks.exe

pid	process
2828	schtasks.exe
4028	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

Processes:

8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.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"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-3141 = "South Sudan Daylight Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-292 = "Central European Standard Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2321 = "Sakhalin Daylight Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-131 = "US Eastern Daylight Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2411 = "Marquesas Daylight Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2891 = "Sudan Daylight Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2892 = "Sudan Standard Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1872 = "Russia TZ 7 Standard Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-3142 = "South Sudan Standard Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-448 = "Azerbaijan Daylight Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2611 = "Bougainville Daylight Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2531 = "Chatham Islands Daylight Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.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"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2492 = "Aus Central W. Standard Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-932 = "Coordinated Universal Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-222 = "Alaskan Standard Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-722 = "Central Pacific Standard Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2002 = "Cabo Verde Standard Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2062 = "North Korea Standard Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1411 = "Syria Daylight Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time"	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exeinjector.execsrss.exe

pid	process
3040	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
3040	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
1248	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
1248	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
1248	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
1248	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
1248	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
1248	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
1248	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
1248	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
1248	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
1248	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe
3292	csrss.exe
3292	csrss.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe
3292	csrss.exe
3292	csrss.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe
3880	injector.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.execsrss.exe

description	pid	process
Token: SeDebugPrivilege	3040	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Token: SeImpersonatePrivilege	3040	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
Token: SeSystemEnvironmentPrivilege	3292	csrss.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.execmd.execsrss.exe

description	pid	process	target process
PID 1248 wrote to memory of 3680	1248	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe	cmd.exe
PID 1248 wrote to memory of 3680	1248	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe	cmd.exe
PID 3680 wrote to memory of 232	3680	cmd.exe	netsh.exe
PID 3680 wrote to memory of 232	3680	cmd.exe	netsh.exe
PID 1248 wrote to memory of 3292	1248	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe	csrss.exe
PID 1248 wrote to memory of 3292	1248	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe	csrss.exe
PID 1248 wrote to memory of 3292	1248	8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe	csrss.exe
PID 3292 wrote to memory of 3880	3292	csrss.exe	injector.exe
PID 3292 wrote to memory of 3880	3292	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\8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
"C:\Users\Admin\AppData\Local\Temp\8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3040

C:\Users\Admin\AppData\Local\Temp\8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.exe
"C:\Users\Admin\AppData\Local\Temp\8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0.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:1248

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:3680

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:232

C:\Windows\rss\csrss.exe
C:\Windows\rss\csrss.exe
3⤵
- Executes dropped EXE
- Adds Run key to start application
- Manipulates WinMonFS driver.
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3292

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:2828

C:\Windows\SYSTEM32\schtasks.exe
schtasks /delete /tn ScheduledUpdate /f
4⤵
PID:4644

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:3880

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:4028

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

Impact

Replay Monitor

Loading Replay Monitor...

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
0482b9930bc8b94c7db772a4cdb34619

SHA1
b7f0384110874d1a4508895ee575640afb84b5c1

SHA256
8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0

SHA512
46b3fd0e1410582e5333653d6911bc327074791d31fa2e979f0cb25d4c89b4b2d7a8f85a233ce97ecd01ba302fe647cbc450e4a77678ba0a20eb2085db5a9b17

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

MD5
0482b9930bc8b94c7db772a4cdb34619

SHA1
b7f0384110874d1a4508895ee575640afb84b5c1

SHA256
8e345625afcf21d70f9932b4b2f69ca08bdc405576f9585eb27f2978bb4038d0

SHA512
46b3fd0e1410582e5333653d6911bc327074791d31fa2e979f0cb25d4c89b4b2d7a8f85a233ce97ecd01ba302fe647cbc450e4a77678ba0a20eb2085db5a9b17

Download Submit
memory/1248-141-0x0000000000400000-0x0000000000EA6000-memory.dmp

Filesize
10.6MB

Download
memory/3040-134-0x0000000003120000-0x0000000003997000-memory.dmp

Filesize
8.5MB

Download
memory/3040-135-0x0000000000400000-0x0000000000EA6000-memory.dmp

Filesize
10.6MB

Download
memory/3040-137-0x0000000003120000-0x0000000003997000-memory.dmp

Filesize
8.5MB

Download
memory/3292-151-0x0000000000400000-0x0000000000EA6000-memory.dmp

Filesize
10.6MB

Download
memory/3292-156-0x0000000000400000-0x0000000000EA6000-memory.dmp

Filesize
10.6MB

Download
memory/3292-149-0x0000000000400000-0x0000000000EA6000-memory.dmp

Filesize
10.6MB

Download
memory/3292-152-0x0000000000400000-0x0000000000EA6000-memory.dmp

Filesize
10.6MB

Download
memory/3292-153-0x0000000000400000-0x0000000000EA6000-memory.dmp

Filesize
10.6MB

Download
memory/3292-154-0x0000000000400000-0x0000000000EA6000-memory.dmp

Filesize
10.6MB

Download
memory/3292-155-0x0000000000400000-0x0000000000EA6000-memory.dmp

Filesize
10.6MB

Download
memory/3292-150-0x0000000000400000-0x0000000000EA6000-memory.dmp

Filesize
10.6MB

Download
memory/3292-157-0x0000000000400000-0x0000000000EA6000-memory.dmp

Filesize
10.6MB

Download
memory/3292-158-0x0000000000400000-0x0000000000EA6000-memory.dmp

Filesize
10.6MB

Download
memory/3292-159-0x0000000000400000-0x0000000000EA6000-memory.dmp

Filesize
10.6MB

Download
memory/3292-160-0x0000000000400000-0x0000000000EA6000-memory.dmp

Filesize
10.6MB

Download
memory/3292-161-0x0000000000400000-0x0000000000EA6000-memory.dmp

Filesize
10.6MB

Download
memory/3292-162-0x0000000000400000-0x0000000000EA6000-memory.dmp

Filesize
10.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads