glupteba | 20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe

General

Target

20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe
Size

4.3MB
MD5

1ce83169b122051e4bee15a4d464d2a6
SHA1

34b82c7c29a74d1c17216db237d4bad44eabc500
SHA256

20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe
SHA512

5baae1586cc59c7abb4fc4d8f609aedf0f14f609a4b408fe66be0bb84b7e0c14c94b7780b403d200c1c8f3c7b73766d85387ebad0c27d937bc7ac520988a10c1

Score

10^/10

glupteba metasploit backdoor discovery dropper evasion loader persistence trojan

Malware Config

Extracted

Family

metasploit

Version

windows/single_exec

Signatures

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

Glupteba Payload 7 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3368-131-0x0000000002E10000-0x000000000371A000-memory.dmp	family_glupteba
behavioral2/memory/3368-132-0x0000000000400000-0x0000000000D24000-memory.dmp	family_glupteba
behavioral2/memory/3368-135-0x0000000000400000-0x0000000000D24000-memory.dmp	family_glupteba
behavioral2/memory/3556-137-0x0000000000400000-0x0000000000D24000-memory.dmp	family_glupteba
behavioral2/memory/3556-143-0x0000000000400000-0x0000000000D24000-memory.dmp	family_glupteba
behavioral2/memory/4704-145-0x0000000000400000-0x0000000000D24000-memory.dmp	family_glupteba
behavioral2/memory/4704-150-0x0000000000400000-0x0000000000D24000-memory.dmp	family_glupteba

MetaSploit
Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.
trojan backdoor metasploit

Suspicious use of NtCreateUserProcessOtherParentProcess 2 IoCs

Processes:

svchost.exe

description	pid	process	target process
PID 432 created 3368	432	svchost.exe	20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe
PID 432 created 4704	432	svchost.exe	csrss.exe

Executes dropped EXE 2 IoCs

Processes:

csrss.exeinjector.exe

pid process

4704 csrss.exe
4460 injector.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

1732 netsh.exe

pid	process
4704	csrss.exe
4460	injector.exe

pid	process
1732	netsh.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NamelessFirefly = "\"C:\\Windows\\rss\\csrss.exe\""	20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.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

Drops file in System32 directory 8 IoCs

Processes:

20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\77EC63BDA74BD0D0E0426DC8F8008506	20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft	20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache	20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData	20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\E0F5C59F9FA661F6F4C50B87FEF3A15A	20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content	20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\E0F5C59F9FA661F6F4C50B87FEF3A15A	20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\77EC63BDA74BD0D0E0426DC8F8008506	20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe

Drops file in Windows directory 2 IoCs

Processes:

20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe

description	ioc	process
File opened for modification	C:\Windows\rss	20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe
File created	C:\Windows\rss\csrss.exe	20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe

Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

4816 schtasks.exe
GoLang User-Agent 1 IoCs
Uses default user-agent string defined by GoLang HTTP packages.

Processes:

description flow ioc

HTTP User-Agent header 17 Go-http-client/1.1

pid	process
4816	schtasks.exe

description	flow	ioc
HTTP User-Agent header	17	Go-http-client/1.1

Modifies data under HKEY_USERS 64 IoCs

Processes:

csrss.exe20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-531 = "Sri Lanka Daylight Time"	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-202 = "US Mountain Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1861 = "Russia TZ 6 Daylight Time"	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2451 = "Saint Pierre Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2162 = "Altai Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-392 = "Arab Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time"	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2532 = "Chatham Islands Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time"	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2411 = "Marquesas Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-291 = "Central European Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-192 = "Mountain Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time"	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time"	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2791 = "Novosibirsk Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-122 = "SA Pacific Standard Time"	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	csrss.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,-462 = "Afghanistan Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time"	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1472 = "Magadan Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time"	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2611 = "Bougainville Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-492 = "India Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2572 = "Turks and Caicos Standard Time"	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2492 = "Aus Central W. Standard Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-331 = "E. Europe Daylight Time"	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-41 = "E. South America Daylight Time"	csrss.exe

Modifies system certificate store 2 TTPs 3 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

Processes:

20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe

description	ioc	process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8\Blob = 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	20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8	20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8\Blob = 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	20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.execsrss.exeinjector.exe

pid	process
3368	20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe
3368	20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe
3556	20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe
3556	20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe
4704	csrss.exe
4704	csrss.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe
4460	injector.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

Processes:

20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exesvchost.exe20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.execsrss.exe

description	pid	process
Token: SeDebugPrivilege	3368	20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe
Token: SeImpersonatePrivilege	3368	20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe
Token: SeTcbPrivilege	432	svchost.exe
Token: SeTcbPrivilege	432	svchost.exe
Token: SeSystemEnvironmentPrivilege	3556	20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe
Token: SeBackupPrivilege	432	svchost.exe
Token: SeRestorePrivilege	432	svchost.exe
Token: SeSystemEnvironmentPrivilege	4704	csrss.exe
Token: SeBackupPrivilege	432	svchost.exe
Token: SeRestorePrivilege	432	svchost.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

svchost.exe20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.execmd.execsrss.exe

description	pid	process	target process
PID 432 wrote to memory of 3556	432	svchost.exe	20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe
PID 432 wrote to memory of 3556	432	svchost.exe	20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe
PID 432 wrote to memory of 3556	432	svchost.exe	20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe
PID 3556 wrote to memory of 4064	3556	20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe	cmd.exe
PID 3556 wrote to memory of 4064	3556	20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe	cmd.exe
PID 4064 wrote to memory of 1732	4064	cmd.exe	netsh.exe
PID 4064 wrote to memory of 1732	4064	cmd.exe	netsh.exe
PID 3556 wrote to memory of 4704	3556	20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe	csrss.exe
PID 3556 wrote to memory of 4704	3556	20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe	csrss.exe
PID 3556 wrote to memory of 4704	3556	20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe	csrss.exe
PID 432 wrote to memory of 4816	432	svchost.exe	schtasks.exe
PID 432 wrote to memory of 4816	432	svchost.exe	schtasks.exe
PID 4704 wrote to memory of 4460	4704	csrss.exe	injector.exe
PID 4704 wrote to memory of 4460	4704	csrss.exe	injector.exe

C:\Users\Admin\AppData\Local\Temp\20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe
"C:\Users\Admin\AppData\Local\Temp\20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3368
- C:\Users\Admin\AppData\Local\Temp\20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe
  "C:\Users\Admin\AppData\Local\Temp\20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe.exe"
  2⤵
  - Adds Run key to start application
  - Drops file in System32 directory
  - Drops file in Windows directory
  - Modifies data under HKEY_USERS
  - Modifies system certificate store
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3556
- - 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:4064
  - - 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:1732
- - C:\Windows\rss\csrss.exe
    C:\Windows\rss\csrss.exe ""
    3⤵
    - Executes dropped EXE
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4704
  - - 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:4816
  - - 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:4460

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s seclogon
1⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:432

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Install Root Certificate

Modify Registry

Web Service

Credential Access

Discovery

Query Registry

1

T1012

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe

Filesize
281KB

MD5
d98e33b66343e7c96158444127a117f6

SHA1
bb716c5509a2bf345c6c1152f6e3e1452d39d50d

SHA256
5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1

SHA512
705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5

Download Submit
C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe

Filesize
281KB

MD5
d98e33b66343e7c96158444127a117f6

SHA1
bb716c5509a2bf345c6c1152f6e3e1452d39d50d

SHA256
5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1

SHA512
705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5

Download Submit
C:\Windows\rss\csrss.exe

Filesize
4.3MB

MD5
1ce83169b122051e4bee15a4d464d2a6

SHA1
34b82c7c29a74d1c17216db237d4bad44eabc500

SHA256
20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe

SHA512
5baae1586cc59c7abb4fc4d8f609aedf0f14f609a4b408fe66be0bb84b7e0c14c94b7780b403d200c1c8f3c7b73766d85387ebad0c27d937bc7ac520988a10c1

Download Submit
C:\Windows\rss\csrss.exe

Filesize
4.3MB

MD5
1ce83169b122051e4bee15a4d464d2a6

SHA1
34b82c7c29a74d1c17216db237d4bad44eabc500

SHA256
20b0328013726120508e2a619dc2386123b19d5e230f8aa8508e0a1746809cfe

SHA512
5baae1586cc59c7abb4fc4d8f609aedf0f14f609a4b408fe66be0bb84b7e0c14c94b7780b403d200c1c8f3c7b73766d85387ebad0c27d937bc7ac520988a10c1

Download Submit
memory/1732-139-0x0000000000000000-mapping.dmp

Download
memory/3368-134-0x00000000029DE000-0x0000000002E0E000-memory.dmp

Filesize
4.2MB

Download
memory/3368-135-0x0000000000400000-0x0000000000D24000-memory.dmp

Filesize
9.1MB

Download
memory/3368-130-0x00000000029DE000-0x0000000002E0E000-memory.dmp

Filesize
4.2MB

Download
memory/3368-132-0x0000000000400000-0x0000000000D24000-memory.dmp

Filesize
9.1MB

Download
memory/3368-131-0x0000000002E10000-0x000000000371A000-memory.dmp

Filesize
9.0MB

Download
memory/3556-136-0x00000000029BB000-0x0000000002DEB000-memory.dmp

Filesize
4.2MB

Download
memory/3556-137-0x0000000000400000-0x0000000000D24000-memory.dmp

Filesize
9.1MB

Download
memory/3556-133-0x0000000000000000-mapping.dmp

Download
memory/3556-143-0x0000000000400000-0x0000000000D24000-memory.dmp

Filesize
9.1MB

Download
memory/4064-138-0x0000000000000000-mapping.dmp

Download
memory/4460-147-0x0000000000000000-mapping.dmp

Download
memory/4704-140-0x0000000000000000-mapping.dmp

Download
memory/4704-145-0x0000000000400000-0x0000000000D24000-memory.dmp

Filesize
9.1MB

Download
memory/4704-144-0x0000000003000000-0x0000000003430000-memory.dmp

Filesize
4.2MB

Download
memory/4704-150-0x0000000000400000-0x0000000000D24000-memory.dmp

Filesize
9.1MB

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memory/4816-146-0x0000000000000000-mapping.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads