glupteba | 803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457

General

Target

803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Size

3.8MB
MD5

468dcdb06c6733d0048a75360d52e1a4
SHA1

eb1ad2cb3ddb7ac6560cf30cc7c286bd31989b1d
SHA256

803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457
SHA512

b78b6e303b4264727e157e559fcb947c7016087e453d4449001a5378297fc6306cec59aabec418f4a08e32101d7e74eca689a8801de451dbb76c5e696f4b0909

Score

10^/10

glupteba dropper evasion loader persistence trojan

Malware Config

Signatures

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

Glupteba Payload 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1308-56-0x0000000002B50000-0x0000000003241000-memory.dmp	family_glupteba
behavioral1/memory/1308-57-0x0000000000400000-0x0000000000B0B000-memory.dmp	family_glupteba
behavioral1/memory/812-60-0x0000000000400000-0x0000000000B0B000-memory.dmp	family_glupteba
behavioral1/memory/364-70-0x0000000000400000-0x0000000000B0B000-memory.dmp	family_glupteba

Windows security bypass 2 TTPs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112
Executes dropped EXE 1 IoCs

Processes:

csrss.exe

pid process

364 csrss.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031

pid	process
364	csrss.exe

Loads dropped DLL 2 IoCs

Processes:

803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe

pid	process
812	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
812	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe

Windows security modification 2 TTPs 12 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\RedWood = "0"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\wup = "0"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows = "0"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\EpicNet Inc\CloudNet = "0"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe = "0"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\cloudnet.exe = "0"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows\CurrentVersion\Run\RedWood = "\"C:\\Windows\\rss\\csrss.exe\""	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe

Drops file in Windows directory 3 IoCs

Processes:

803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exemakecab.exe

description	ioc	process
File created	C:\Windows\rss\csrss.exe	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
File created	C:\Windows\Logs\CBS\CbsPersist_20220520203111.cab	makecab.exe
File opened for modification	C:\Windows\rss	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe

Modifies data under HKEY_USERS 64 IoCs

Processes:

803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exenetsh.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\tsgqec.dll,-103 = "Microsoft Corporation"	netsh.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\tsgqec.dll,-101 = "Provides RD Gateway enforcement for NAP"	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\tsgqec.dll,-102 = "1.0"	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-472 = "Ekaterinburg Standard Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-931 = "Coordinated Universal Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\eapqec.dll,-102 = "1.0"	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-671 = "AUS Eastern Daylight Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-372 = "Jerusalem Standard Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-581 = "North Asia East Daylight Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-722 = "Central Pacific Standard Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-961 = "Paraguay Daylight Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\dhcpqec.dll,-101 = "Provides DHCP based enforcement for NAP"	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\napipsec.dll,-2 = "Provides IPsec based enforcement for Network Access Protection"	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-12 = "Azores Standard Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-292 = "Central European Standard Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-22 = "Cape Verde Standard Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-551 = "North Asia Daylight Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\dhcpqec.dll,-102 = "Microsoft Corporation"	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-392 = "Arab Standard Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-41 = "E. South America Daylight Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-512 = "Central Asia Standard Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-402 = "Arabic Standard Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time"	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.execsrss.exe

pid	process
1308	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
1308	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
1308	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
1308	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
812	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
812	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
812	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
364	csrss.exe
364	csrss.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe

description	pid	process
Token: SeDebugPrivilege	1308	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
Token: SeImpersonatePrivilege	1308	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.execmd.exe

description	pid	process	target process
PID 812 wrote to memory of 268	812	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe	cmd.exe
PID 812 wrote to memory of 268	812	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe	cmd.exe
PID 812 wrote to memory of 268	812	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe	cmd.exe
PID 812 wrote to memory of 268	812	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe	cmd.exe
PID 268 wrote to memory of 1932	268	cmd.exe	netsh.exe
PID 268 wrote to memory of 1932	268	cmd.exe	netsh.exe
PID 268 wrote to memory of 1932	268	cmd.exe	netsh.exe
PID 812 wrote to memory of 364	812	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe	csrss.exe
PID 812 wrote to memory of 364	812	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe	csrss.exe
PID 812 wrote to memory of 364	812	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe	csrss.exe
PID 812 wrote to memory of 364	812	803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe	csrss.exe

C:\Users\Admin\AppData\Local\Temp\803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
"C:\Users\Admin\AppData\Local\Temp\803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1308

C:\Users\Admin\AppData\Local\Temp\803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe
"C:\Users\Admin\AppData\Local\Temp\803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457.exe"
2⤵
- Loads dropped DLL
- Windows security modification
- Adds Run key to start application
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:812

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:268

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 data under HKEY_USERS
PID:1932

C:\Windows\rss\csrss.exe
C:\Windows\rss\csrss.exe ""
3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:364

C:\Windows\system32\makecab.exe
"C:\Windows\system32\makecab.exe" C:\Windows\Logs\CBS\CbsPersist_20220520203111.log C:\Windows\Logs\CBS\CbsPersist_20220520203111.cab
1⤵
- Drops file in Windows directory
PID:1240

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Disabling Security Tools

2

T1089

Modify Registry

3

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Windows\rss\csrss.exe
Filesize
3.8MB

MD5
468dcdb06c6733d0048a75360d52e1a4

SHA1
eb1ad2cb3ddb7ac6560cf30cc7c286bd31989b1d

SHA256
803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457

SHA512
b78b6e303b4264727e157e559fcb947c7016087e453d4449001a5378297fc6306cec59aabec418f4a08e32101d7e74eca689a8801de451dbb76c5e696f4b0909

Download Submit
\Windows\rss\csrss.exe
Filesize
3.8MB

MD5
468dcdb06c6733d0048a75360d52e1a4

SHA1
eb1ad2cb3ddb7ac6560cf30cc7c286bd31989b1d

SHA256
803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457

SHA512
b78b6e303b4264727e157e559fcb947c7016087e453d4449001a5378297fc6306cec59aabec418f4a08e32101d7e74eca689a8801de451dbb76c5e696f4b0909

Download Submit
\Windows\rss\csrss.exe
Filesize
3.8MB

MD5
468dcdb06c6733d0048a75360d52e1a4

SHA1
eb1ad2cb3ddb7ac6560cf30cc7c286bd31989b1d

SHA256
803f140bd2b1a74fe2334a0f68337fbd85adc6074dff8fc6bea58b6f2a5ab457

SHA512
b78b6e303b4264727e157e559fcb947c7016087e453d4449001a5378297fc6306cec59aabec418f4a08e32101d7e74eca689a8801de451dbb76c5e696f4b0909

Download Submit
memory/268-61-0x0000000000000000-mapping.dmp

Download
memory/364-70-0x0000000000400000-0x0000000000B0B000-memory.dmp

Filesize
7.0MB

Download
memory/364-69-0x0000000002400000-0x00000000027A4000-memory.dmp

Filesize
3.6MB

Download
memory/364-68-0x0000000002400000-0x00000000027A4000-memory.dmp

Filesize
3.6MB

Download
memory/364-66-0x0000000000000000-mapping.dmp

Download
memory/812-58-0x00000000022A0000-0x0000000002644000-memory.dmp

Filesize
3.6MB

Download
memory/812-60-0x0000000000400000-0x0000000000B0B000-memory.dmp

Filesize
7.0MB

Download
memory/812-59-0x00000000022A0000-0x0000000002644000-memory.dmp

Filesize
3.6MB

Download
memory/1308-54-0x00000000027A0000-0x0000000002B44000-memory.dmp

Filesize
3.6MB

Download
memory/1308-57-0x0000000000400000-0x0000000000B0B000-memory.dmp

Filesize
7.0MB

Download
memory/1308-56-0x0000000002B50000-0x0000000003241000-memory.dmp

Filesize
6.9MB

Download
memory/1308-55-0x00000000027A0000-0x0000000002B44000-memory.dmp

Filesize
3.6MB

Download
memory/1932-63-0x000007FEFBBF1000-0x000007FEFBBF3000-memory.dmp

Filesize
8KB

Download
memory/1932-62-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads