glupteba | 022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c

General

Target

022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Size

4.1MB
MD5

9d3cd832ea266b0bff21095d7e160b74
SHA1

c915953aeebc68289e697edf3592178f868ea388
SHA256

022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c
SHA512

e14dbe0c2379e1593351564ac9a776035133560e676c077af2f2aa5f7fc52e7578c872047ff8b7a3fdc76b216e8af719308d43e337ef99cf993569799b9c970e
SSDEEP

98304:m7VssOaMQzxlQbp5jBumi+C/se4siECzaN6Vgd:CnVZmid/seb+aN6Vgd

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 16 IoCs

Processes:

resource	yara_rule
behavioral1/memory/4032-134-0x00000000050F0000-0x0000000005967000-memory.dmp	family_glupteba
behavioral1/memory/4032-135-0x0000000000400000-0x0000000002F50000-memory.dmp	family_glupteba
behavioral1/memory/2016-141-0x0000000000400000-0x0000000002F50000-memory.dmp	family_glupteba
behavioral1/memory/4764-148-0x0000000000400000-0x0000000002F50000-memory.dmp	family_glupteba
behavioral1/memory/4764-149-0x0000000000400000-0x0000000002F50000-memory.dmp	family_glupteba
behavioral1/memory/4764-150-0x0000000000400000-0x0000000002F50000-memory.dmp	family_glupteba
behavioral1/memory/4764-151-0x0000000000400000-0x0000000002F50000-memory.dmp	family_glupteba
behavioral1/memory/4764-152-0x0000000000400000-0x0000000002F50000-memory.dmp	family_glupteba
behavioral1/memory/4764-153-0x0000000000400000-0x0000000002F50000-memory.dmp	family_glupteba
behavioral1/memory/4764-154-0x0000000000400000-0x0000000002F50000-memory.dmp	family_glupteba
behavioral1/memory/4764-155-0x0000000000400000-0x0000000002F50000-memory.dmp	family_glupteba
behavioral1/memory/4764-156-0x0000000000400000-0x0000000002F50000-memory.dmp	family_glupteba
behavioral1/memory/4764-157-0x0000000000400000-0x0000000002F50000-memory.dmp	family_glupteba
behavioral1/memory/4764-158-0x0000000000400000-0x0000000002F50000-memory.dmp	family_glupteba
behavioral1/memory/4764-159-0x0000000000400000-0x0000000002F50000-memory.dmp	family_glupteba
behavioral1/memory/4764-166-0x0000000000400000-0x0000000002F50000-memory.dmp	family_glupteba

Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

4160 netsh.exe
Executes dropped EXE 3 IoCs

Processes:

csrss.exeinjector.exef801950a962ddba14caaa44bf084b55c.exe

pid process

4764 csrss.exe
3660 injector.exe
4472 f801950a962ddba14caaa44bf084b55c.exe

pid	process
4160	netsh.exe

pid	process
4764	csrss.exe
3660	injector.exe
4472	f801950a962ddba14caaa44bf084b55c.exe

UPX packed file 5 IoCs

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

upx

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe	upx
behavioral1/memory/4472-164-0x0000000000400000-0x0000000000C25000-memory.dmp	upx
C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe	upx
behavioral1/memory/4472-167-0x0000000000400000-0x0000000000C25000-memory.dmp	upx
behavioral1/memory/4472-169-0x0000000000400000-0x0000000000C25000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.execsrss.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\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:

022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe

description ioc process

File opened (read-only) \??\VBoxMiniRdrDN 022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe

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

description	ioc	process
File opened (read-only)	\??\VBoxMiniRdrDN	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe

Drops file in Windows directory 2 IoCs

Processes:

022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe

description	ioc	process
File opened for modification	C:\Windows\rss	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
File created	C:\Windows\rss\csrss.exe	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3900 2016 WerFault.exe 022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.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

4164 schtasks.exe
392 schtasks.exe

pid	pid_target	process	target process
3900	2016	WerFault.exe	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe

pid	process
4164	schtasks.exe
392	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

Processes:

022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.execsrss.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2492 = "Aus Central W. Standard Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2491 = "Aus Central W. Daylight Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2321 = "Sakhalin Daylight Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-392 = "Arab Standard Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.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"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1892 = "Russia TZ 3 Standard Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.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,-351 = "FLE Daylight Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.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"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-121 = "SA Pacific Daylight Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1932 = "Russia TZ 11 Standard Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-3052 = "Qyzylorda Standard Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-912 = "Mauritius Standard Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-3141 = "South Sudan Daylight Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1662 = "Bahia Standard Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-42 = "E. South America Standard Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2342 = "Haiti Standard Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-692 = "Tasmania Standard Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-171 = "Central Daylight Time (Mexico)"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-3142 = "South Sudan Standard Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-292 = "Central European Standard Time"	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exeinjector.execsrss.exe

pid	process
4032	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
4032	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
2016	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
2016	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
2016	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
2016	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
2016	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
2016	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
2016	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
2016	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
2016	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
2016	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
4764	csrss.exe
4764	csrss.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
4764	csrss.exe
4764	csrss.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe
3660	injector.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.execsrss.exe

description	pid	process
Token: SeDebugPrivilege	4032	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Token: SeImpersonatePrivilege	4032	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
Token: SeSystemEnvironmentPrivilege	4764	csrss.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.execmd.execsrss.exe

description	pid	process	target process
PID 2016 wrote to memory of 1528	2016	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe	cmd.exe
PID 2016 wrote to memory of 1528	2016	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe	cmd.exe
PID 1528 wrote to memory of 4160	1528	cmd.exe	netsh.exe
PID 1528 wrote to memory of 4160	1528	cmd.exe	netsh.exe
PID 2016 wrote to memory of 4764	2016	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe	csrss.exe
PID 2016 wrote to memory of 4764	2016	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe	csrss.exe
PID 2016 wrote to memory of 4764	2016	022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe	csrss.exe
PID 4764 wrote to memory of 3660	4764	csrss.exe	injector.exe
PID 4764 wrote to memory of 3660	4764	csrss.exe	injector.exe
PID 4764 wrote to memory of 4472	4764	csrss.exe	f801950a962ddba14caaa44bf084b55c.exe
PID 4764 wrote to memory of 4472	4764	csrss.exe	f801950a962ddba14caaa44bf084b55c.exe
PID 4764 wrote to memory of 4472	4764	csrss.exe	f801950a962ddba14caaa44bf084b55c.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\022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
"C:\Users\Admin\AppData\Local\Temp\022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4032

C:\Users\Admin\AppData\Local\Temp\022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.exe
"C:\Users\Admin\AppData\Local\Temp\022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c.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:2016

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:1528

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:4160

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:4764

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:4164

C:\Windows\SYSTEM32\schtasks.exe
schtasks /delete /tn ScheduledUpdate /f
4⤵
PID:968

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:3660

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:392

C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe
C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe
4⤵
- Executes dropped EXE
PID:4472

C:\Windows\SYSTEM32\schtasks.exe
schtasks /delete /tn "csrss" /f
5⤵
PID:3200

C:\Windows\SYSTEM32\schtasks.exe
schtasks /delete /tn "ScheduledUpdate" /f
5⤵
PID:1556

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2016 -s 820
3⤵
- Program crash
PID:3900

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 2016 -ip 2016
1⤵
PID:4632

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\f801950a962ddba14caaa44bf084b55c.exe
Filesize
3.2MB

MD5
f801950a962ddba14caaa44bf084b55c

SHA1
7cadc9076121297428442785536ba0df2d4ae996

SHA256
c3946ec89e15b24b743c46f9acacb58cff47da63f3ce2799d71ed90496b8891f

SHA512
4183bc76bdc84fb779e2e573d9a63d7de47096b63b945f9e335bee95ae28eb208f5ee15f6501ac59623b97c5b77f3455ca313512e7d9803e1704ae22a52459c5

Download Submit
C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe
Filesize
3.2MB

MD5
f801950a962ddba14caaa44bf084b55c

SHA1
7cadc9076121297428442785536ba0df2d4ae996

SHA256
c3946ec89e15b24b743c46f9acacb58cff47da63f3ce2799d71ed90496b8891f

SHA512
4183bc76bdc84fb779e2e573d9a63d7de47096b63b945f9e335bee95ae28eb208f5ee15f6501ac59623b97c5b77f3455ca313512e7d9803e1704ae22a52459c5

Download Submit
C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll
Filesize
99KB

MD5
09031a062610d77d685c9934318b4170

SHA1
880f744184e7774f3d14c1bb857e21cc7fe89a6d

SHA256
778bd69af403df3c4e074c31b3850d71bf0e64524bea4272a802ca9520b379dd

SHA512
9a276e1f0f55d35f2bf38eb093464f7065bdd30a660e6d1c62eed5e76d1fb2201567b89d9ae65d2d89dc99b142159e36fb73be8d5e08252a975d50544a7cda27

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:\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
9d3cd832ea266b0bff21095d7e160b74

SHA1
c915953aeebc68289e697edf3592178f868ea388

SHA256
022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c

SHA512
e14dbe0c2379e1593351564ac9a776035133560e676c077af2f2aa5f7fc52e7578c872047ff8b7a3fdc76b216e8af719308d43e337ef99cf993569799b9c970e

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

MD5
9d3cd832ea266b0bff21095d7e160b74

SHA1
c915953aeebc68289e697edf3592178f868ea388

SHA256
022dd5d20d4c1aa0b58e7613cd90c4f264e563d1f89ce8af25615eb84cf8532c

SHA512
e14dbe0c2379e1593351564ac9a776035133560e676c077af2f2aa5f7fc52e7578c872047ff8b7a3fdc76b216e8af719308d43e337ef99cf993569799b9c970e

Download Submit
memory/2016-141-0x0000000000400000-0x0000000002F50000-memory.dmp

Filesize
43.3MB

Download
memory/4032-135-0x0000000000400000-0x0000000002F50000-memory.dmp

Filesize
43.3MB

Download
memory/4032-134-0x00000000050F0000-0x0000000005967000-memory.dmp

Filesize
8.5MB

Download
memory/4472-169-0x0000000000400000-0x0000000000C25000-memory.dmp

Filesize
8.1MB

Download
memory/4472-167-0x0000000000400000-0x0000000000C25000-memory.dmp

Filesize
8.1MB

Download
memory/4472-164-0x0000000000400000-0x0000000000C25000-memory.dmp

Filesize
8.1MB

Download
memory/4764-153-0x0000000000400000-0x0000000002F50000-memory.dmp

Filesize
43.3MB

Download
memory/4764-155-0x0000000000400000-0x0000000002F50000-memory.dmp

Filesize
43.3MB

Download
memory/4764-156-0x0000000000400000-0x0000000002F50000-memory.dmp

Filesize
43.3MB

Download
memory/4764-157-0x0000000000400000-0x0000000002F50000-memory.dmp

Filesize
43.3MB

Download
memory/4764-158-0x0000000000400000-0x0000000002F50000-memory.dmp

Filesize
43.3MB

Download
memory/4764-159-0x0000000000400000-0x0000000002F50000-memory.dmp

Filesize
43.3MB

Download
memory/4764-154-0x0000000000400000-0x0000000002F50000-memory.dmp

Filesize
43.3MB

Download
memory/4764-152-0x0000000000400000-0x0000000002F50000-memory.dmp

Filesize
43.3MB

Download
memory/4764-151-0x0000000000400000-0x0000000002F50000-memory.dmp

Filesize
43.3MB

Download
memory/4764-166-0x0000000000400000-0x0000000002F50000-memory.dmp

Filesize
43.3MB

Download
memory/4764-150-0x0000000000400000-0x0000000002F50000-memory.dmp

Filesize
43.3MB

Download
memory/4764-149-0x0000000000400000-0x0000000002F50000-memory.dmp

Filesize
43.3MB

Download
memory/4764-148-0x0000000000400000-0x0000000002F50000-memory.dmp

Filesize
43.3MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads