glupteba | 025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c

General

Target

025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Size

3.8MB
MD5

e2bcfb552fd8fdb88da751306f4bea2a
SHA1

b99331f2858f7ee67ea907419c0769fe2279b672
SHA256

025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c
SHA512

31746515c1278da7a61e6d3a189eb42415265d6d5b364773bd3abd6284d5d7782792c1a357c20e18aca1820db17ea160eec9fa406c2f1019c322de390f262767

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/2008-56-0x00000000040B0000-0x000000000479F000-memory.dmp	family_glupteba
behavioral1/memory/2008-57-0x0000000000400000-0x0000000003A72000-memory.dmp	family_glupteba
behavioral1/memory/596-60-0x0000000000400000-0x0000000003A72000-memory.dmp	family_glupteba
behavioral1/memory/2000-70-0x0000000000400000-0x0000000003A72000-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

2000 csrss.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031

pid	process
2000	csrss.exe

Loads dropped DLL 2 IoCs

Processes:

025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe

pid	process
596	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
596	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe

Windows security modification 2 TTPs 12 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\cloudnet.exe = "0"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\EpicNet Inc\CloudNet = "0"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\OldPine = "0"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\wup = "0"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe = "0"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows = "0"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows\CurrentVersion\Run\OldPine = "\"C:\\Windows\\rss\\csrss.exe\""	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe

Drops file in Windows directory 3 IoCs

Processes:

025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exemakecab.exe

description	ioc	process
File opened for modification	C:\Windows\rss	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
File created	C:\Windows\rss\csrss.exe	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
File created	C:\Windows\Logs\CBS\CbsPersist_20220524051634.cab	makecab.exe

Modifies data under HKEY_USERS 64 IoCs

Processes:

netsh.exe025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.execsrss.exe

description	ioc	process
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,-392 = "Arab Standard Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-372 = "Jerusalem Standard Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.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,-441 = "Arabian Daylight Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-172 = "Central Standard Time (Mexico)"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-1472 = "Magadan Standard Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-432 = "Iran Standard Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-531 = "Sri Lanka Daylight Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-912 = "Mauritius Standard Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-911 = "Mauritius Daylight Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-502 = "Nepal Standard Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-591 = "Malay Peninsula Daylight Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-22 = "Cape Verde Standard Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-21 = "Cape Verde Daylight Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-291 = "Central European Daylight Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.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"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Key created	\REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet\Control\NetTrace	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-221 = "Alaskan Daylight Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-11 = "Azores Daylight Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-722 = "Central Pacific Standard Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-449 = "Azerbaijan Standard Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-562 = "SE Asia Standard Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time"	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\napipsec.dll,-3 = "Microsoft Corporation"	netsh.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.execsrss.exe

pid	process
2008	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
2008	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
2008	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
2008	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
596	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
596	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
596	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
2000	csrss.exe
2000	csrss.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe

description	pid	process
Token: SeDebugPrivilege	2008	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
Token: SeImpersonatePrivilege	2008	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.execmd.exe

description	pid	process	target process
PID 596 wrote to memory of 1340	596	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe	cmd.exe
PID 596 wrote to memory of 1340	596	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe	cmd.exe
PID 596 wrote to memory of 1340	596	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe	cmd.exe
PID 596 wrote to memory of 1340	596	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe	cmd.exe
PID 1340 wrote to memory of 576	1340	cmd.exe	netsh.exe
PID 1340 wrote to memory of 576	1340	cmd.exe	netsh.exe
PID 1340 wrote to memory of 576	1340	cmd.exe	netsh.exe
PID 596 wrote to memory of 2000	596	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe	csrss.exe
PID 596 wrote to memory of 2000	596	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe	csrss.exe
PID 596 wrote to memory of 2000	596	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe	csrss.exe
PID 596 wrote to memory of 2000	596	025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe	csrss.exe

C:\Users\Admin\AppData\Local\Temp\025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
"C:\Users\Admin\AppData\Local\Temp\025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2008

C:\Users\Admin\AppData\Local\Temp\025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.exe
"C:\Users\Admin\AppData\Local\Temp\025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c.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:596

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:1340

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:576

C:\Windows\rss\csrss.exe
C:\Windows\rss\csrss.exe ""
3⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
PID:2000

C:\Windows\system32\makecab.exe
"C:\Windows\system32\makecab.exe" C:\Windows\Logs\CBS\CbsPersist_20220524051634.log C:\Windows\Logs\CBS\CbsPersist_20220524051634.cab
1⤵
- Drops file in Windows directory
PID:1724

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
e2bcfb552fd8fdb88da751306f4bea2a

SHA1
b99331f2858f7ee67ea907419c0769fe2279b672

SHA256
025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c

SHA512
31746515c1278da7a61e6d3a189eb42415265d6d5b364773bd3abd6284d5d7782792c1a357c20e18aca1820db17ea160eec9fa406c2f1019c322de390f262767

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

MD5
e2bcfb552fd8fdb88da751306f4bea2a

SHA1
b99331f2858f7ee67ea907419c0769fe2279b672

SHA256
025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c

SHA512
31746515c1278da7a61e6d3a189eb42415265d6d5b364773bd3abd6284d5d7782792c1a357c20e18aca1820db17ea160eec9fa406c2f1019c322de390f262767

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

MD5
e2bcfb552fd8fdb88da751306f4bea2a

SHA1
b99331f2858f7ee67ea907419c0769fe2279b672

SHA256
025f3da46d16a6a0179a27b0f26d082e29358254a22e6af887b03106e9e9048c

SHA512
31746515c1278da7a61e6d3a189eb42415265d6d5b364773bd3abd6284d5d7782792c1a357c20e18aca1820db17ea160eec9fa406c2f1019c322de390f262767

Download Submit
memory/576-62-0x0000000000000000-mapping.dmp

Download
memory/576-63-0x000007FEFBA41000-0x000007FEFBA43000-memory.dmp

Filesize
8KB

Download
memory/596-59-0x0000000003C30000-0x0000000003FD4000-memory.dmp

Filesize
3.6MB

Download
memory/596-60-0x0000000000400000-0x0000000003A72000-memory.dmp

Filesize
54.4MB

Download
memory/596-58-0x0000000003C30000-0x0000000003FD4000-memory.dmp

Filesize
3.6MB

Download
memory/1340-61-0x0000000000000000-mapping.dmp

Download
memory/2000-68-0x0000000003C10000-0x0000000003FB4000-memory.dmp

Filesize
3.6MB

Download
memory/2000-70-0x0000000000400000-0x0000000003A72000-memory.dmp

Filesize
54.4MB

Download
memory/2000-66-0x0000000000000000-mapping.dmp

Download
memory/2000-69-0x0000000003C10000-0x0000000003FB4000-memory.dmp

Filesize
3.6MB

Download
memory/2008-57-0x0000000000400000-0x0000000003A72000-memory.dmp

Filesize
54.4MB

Download
memory/2008-55-0x0000000003D00000-0x00000000040A4000-memory.dmp

Filesize
3.6MB

Download
memory/2008-56-0x00000000040B0000-0x000000000479F000-memory.dmp

Filesize
6.9MB

Download
memory/2008-54-0x0000000003D00000-0x00000000040A4000-memory.dmp

Filesize
3.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads