glupteba | aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1

General

Target

aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Size

6.9MB
MD5

bee2233e0262a8f1c833b709e29ef54c
SHA1

4109c7b526df392948ad5597f9ee290603a97f0f
SHA256

aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1
SHA512

0d9a598d26a9f7fc8c820aed1fbd9346275ae73780855d4447b7e876d844ad05d93bce793ae17d605ae512134a5f4f78ffc67cf44b01c8dd1a05d6dacd56fcf8

Score

10^/10

glupteba dropper evasion loader persistence

Malware Config

Signatures

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

Glupteba payload 2 IoCs

Processes:

resource	yara_rule
C:\Windows\rss\csrss.exe	family_glupteba
C:\Windows\rss\csrss.exe	family_glupteba

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

Processes:

svchost.exe

description pid process target process

PID 1404 created 4288 1404 svchost.exe aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Executes dropped EXE 1 IoCs

Processes:

csrss.exe

pid process

2436 csrss.exe
Modifies Windows Firewall 1 TTPs 2 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exenetsh.exe

pid process

2332 netsh.exe
212 netsh.exe

description	pid	process	target process
PID 1404 created 4288	1404	svchost.exe	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe

pid	process
2436	csrss.exe

pid	process
2332	netsh.exe
212	netsh.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WildCloud = "\"C:\\Windows\\rss\\csrss.exe\""	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe

Drops file in System32 directory 8 IoCs

Processes:

csrss.exe

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

Drops file in Windows directory 2 IoCs

Processes:

aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe

description	ioc	process
File opened for modification	C:\Windows\rss	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
File created	C:\Windows\rss\csrss.exe	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe

Modifies data under HKEY_USERS 64 IoCs

Processes:

aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.execsrss.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1972 = "Belarus Standard Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2451 = "Saint Pierre Daylight Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2392 = "Aleutian Standard Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-291 = "Central European Daylight Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-982 = "Kamchatka Standard Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-392 = "Arab Standard Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2161 = "Altai Daylight Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1932 = "Russia TZ 11 Standard Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2061 = "North Korea Daylight Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2371 = "Easter Island Daylight Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1912 = "Russia TZ 10 Standard Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1931 = "Russia TZ 11 Daylight Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-449 = "Azerbaijan Standard Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-571 = "China Daylight Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-591 = "Malay Peninsula Daylight Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1471 = "Magadan Daylight Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1722 = "Libya Standard Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2532 = "Chatham Islands Standard Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1911 = "Russia TZ 10 Daylight Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-432 = "Iran Standard Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1842 = "Russia TZ 4 Standard Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1872 = "Russia TZ 7 Standard Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2531 = "Chatham Islands Daylight Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time"	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe

Modifies system certificate store 2 TTPs 3 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

Processes:

csrss.exe

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

Suspicious behavior: EnumeratesProcesses 22 IoCs

Processes:

aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exeaff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.execsrss.exe

pid	process
4288	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
4288	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
4288	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
4288	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
4288	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
4288	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
4288	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
4288	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
3392	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
3392	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
3392	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
3392	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
3392	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
3392	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
3392	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
3392	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
3392	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
3392	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
2436	csrss.exe
2436	csrss.exe
2436	csrss.exe
2436	csrss.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exesvchost.exe

description	pid	process
Token: SeDebugPrivilege	4288	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Token: SeImpersonatePrivilege	4288	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
Token: SeTcbPrivilege	1404	svchost.exe
Token: SeTcbPrivilege	1404	svchost.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

svchost.exeaff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.execmd.execmd.exe

description	pid	process	target process
PID 1404 wrote to memory of 3392	1404	svchost.exe	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
PID 1404 wrote to memory of 3392	1404	svchost.exe	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
PID 1404 wrote to memory of 3392	1404	svchost.exe	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
PID 3392 wrote to memory of 2536	3392	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe	cmd.exe
PID 3392 wrote to memory of 2536	3392	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe	cmd.exe
PID 2536 wrote to memory of 2332	2536	cmd.exe	netsh.exe
PID 2536 wrote to memory of 2332	2536	cmd.exe	netsh.exe
PID 3392 wrote to memory of 512	3392	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe	cmd.exe
PID 3392 wrote to memory of 512	3392	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe	cmd.exe
PID 512 wrote to memory of 212	512	cmd.exe	netsh.exe
PID 512 wrote to memory of 212	512	cmd.exe	netsh.exe
PID 3392 wrote to memory of 2436	3392	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe	csrss.exe
PID 3392 wrote to memory of 2436	3392	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe	csrss.exe
PID 3392 wrote to memory of 2436	3392	aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe	csrss.exe

C:\Users\Admin\AppData\Local\Temp\aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
"C:\Users\Admin\AppData\Local\Temp\aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4288

C:\Users\Admin\AppData\Local\Temp\aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe
"C:\Users\Admin\AppData\Local\Temp\aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1.exe"
2⤵
- Adds Run key to start application
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3392

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:2536

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:2332

C:\Windows\system32\cmd.exe
C:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="CloudNet" dir=in action=allow program="C:\Users\Admin\AppData\Roaming\EpicNet Inc\CloudNet\cloudnet.exe" enable=yes"
3⤵
- Suspicious use of WriteProcessMemory
PID:512

C:\Windows\system32\netsh.exe
netsh advfirewall firewall add rule name="CloudNet" dir=in action=allow program="C:\Users\Admin\AppData\Roaming\EpicNet Inc\CloudNet\cloudnet.exe" enable=yes
4⤵
- Modifies Windows Firewall
PID:212

C:\Windows\rss\csrss.exe
C:\Windows\rss\csrss.exe ""
3⤵
- Executes dropped EXE
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
PID:2436

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:1404

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

Modify Registry

2

T1112

Install Root Certificate

1

T1130

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Windows\rss\csrss.exe
Filesize
6.9MB

MD5
bee2233e0262a8f1c833b709e29ef54c

SHA1
4109c7b526df392948ad5597f9ee290603a97f0f

SHA256
aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1

SHA512
0d9a598d26a9f7fc8c820aed1fbd9346275ae73780855d4447b7e876d844ad05d93bce793ae17d605ae512134a5f4f78ffc67cf44b01c8dd1a05d6dacd56fcf8

Download Submit
C:\Windows\rss\csrss.exe
Filesize
6.9MB

MD5
bee2233e0262a8f1c833b709e29ef54c

SHA1
4109c7b526df392948ad5597f9ee290603a97f0f

SHA256
aff5bb308e0f881f894a52f88b14ef60838826810259163556f625d41cd769d1

SHA512
0d9a598d26a9f7fc8c820aed1fbd9346275ae73780855d4447b7e876d844ad05d93bce793ae17d605ae512134a5f4f78ffc67cf44b01c8dd1a05d6dacd56fcf8

Download Submit
memory/212-134-0x0000000000000000-mapping.dmp

Download
memory/512-133-0x0000000000000000-mapping.dmp

Download
memory/2332-132-0x0000000000000000-mapping.dmp

Download
memory/2436-135-0x0000000000000000-mapping.dmp

Download
memory/2536-131-0x0000000000000000-mapping.dmp

Download
memory/3392-130-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads