glupteba | b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b

Analysis

max time kernel
150s
max time network
152s
platform
windows10-1703_x64
resource
win10-20220901-en
resource tags

arch:x64arch:x86image:win10-20220901-enlocale:en-usos:windows10-1703-x64system
submitted
02/12/2022, 02:23

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General

Target

b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Size

4.0MB
MD5

6794bd2f769617fff2d209a9acb58cd6
SHA1

e45d99a99dc28d875159ffccce9d0d0918c1282d
SHA256

b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b
SHA512

d4a0ea759d88fb936acf674e29d4e1dee6c136f5a4c9739072da86fd0ba27ec084bcb2226225e90910c46682d872af50120482d9ce5b5d91af2f4491b58db067
SSDEEP

98304:GIfDRGGHsebHNPCVXFv5Hk80vytmjZMIIMGYE3Q+S4ysbv5IUq2BAr3MA+Hay:GIrfd6V1v5sTjTGhVbRBAr3x+Hay

Score

10^/10

glupteba discovery dropper evasion loader persistence trojan

Malware Config

Signatures

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

Windows security bypass 2 TTPs 7 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe = "0"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe

Executes dropped EXE 2 IoCs

pid	Process
4668	csrss.exe
824	injector.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
4612	netsh.exe

Windows security modification 2 TTPs 7 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe = "0"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	csrss.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 Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
File created	C:\Windows\rss\csrss.exe	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.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

pid	Process
1232	schtasks.exe
2776	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-222 = "Alaskan Standard Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-841 = "Argentina Daylight Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-691 = "Tasmania Daylight Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	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"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Key created	\REGISTRY\USER\.DEFAULT\System\CurrentControlSet	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-682 = "E. Australia Standard Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.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,-2162 = "Altai Standard Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-261 = "GMT Daylight Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2531 = "Chatham Islands Daylight Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2512 = "Lord Howe Standard Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.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,-2392 = "Aleutian Standard Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Key created	\REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet\Control\NetTrace	netsh.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-722 = "Central Pacific Standard Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.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"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	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"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-434 = "Georgian Daylight Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.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,-151 = "Central America Daylight Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2391 = "Aleutian Daylight Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-192 = "Mountain Standard Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1831 = "Russia TZ 2 Daylight Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2611 = "Bougainville Daylight Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.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,-1022 = "Bangladesh Standard Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2532 = "Chatham Islands Standard Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1892 = "Russia TZ 3 Standard Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.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,-721 = "Central Pacific Daylight Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2632 = "Norfolk Standard Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time"	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1532	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
1532	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
2192	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
2192	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
2192	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
2192	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
2192	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
2192	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
2192	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
2192	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
2192	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
2192	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
824	injector.exe
824	injector.exe
824	injector.exe
824	injector.exe
824	injector.exe
824	injector.exe
824	injector.exe
824	injector.exe
4668	csrss.exe
4668	csrss.exe
824	injector.exe
824	injector.exe
824	injector.exe
824	injector.exe
824	injector.exe
824	injector.exe
4668	csrss.exe
4668	csrss.exe
824	injector.exe
824	injector.exe
824	injector.exe
824	injector.exe
824	injector.exe
824	injector.exe
824	injector.exe
824	injector.exe
824	injector.exe
824	injector.exe
824	injector.exe
824	injector.exe
824	injector.exe
824	injector.exe
824	injector.exe
824	injector.exe
824	injector.exe
824	injector.exe
824	injector.exe
824	injector.exe
824	injector.exe
824	injector.exe
824	injector.exe
824	injector.exe
824	injector.exe
824	injector.exe
824	injector.exe
824	injector.exe
824	injector.exe
824	injector.exe
824	injector.exe
824	injector.exe
824	injector.exe
824	injector.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1532	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Token: SeImpersonatePrivilege	1532	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
Token: SeSystemEnvironmentPrivilege	4668	csrss.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2192 wrote to memory of 4456	2192	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe	71
PID 2192 wrote to memory of 4456	2192	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe	71
PID 4456 wrote to memory of 4612	4456	cmd.exe	72
PID 4456 wrote to memory of 4612	4456	cmd.exe	72
PID 2192 wrote to memory of 4668	2192	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe	73
PID 2192 wrote to memory of 4668	2192	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe	73
PID 2192 wrote to memory of 4668	2192	b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe	73
PID 4668 wrote to memory of 824	4668	csrss.exe	80
PID 4668 wrote to memory of 824	4668	csrss.exe	80

C:\Users\Admin\AppData\Local\Temp\b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
"C:\Users\Admin\AppData\Local\Temp\b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1532
- C:\Users\Admin\AppData\Local\Temp\b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe
  "C:\Users\Admin\AppData\Local\Temp\b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b.exe"
  2⤵
  - Windows security bypass
  - 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:2192
- - 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:4456
  - - 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:4612
- - C:\Windows\rss\csrss.exe
    C:\Windows\rss\csrss.exe
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4668
  - - 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:1232
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:1156
  - - 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:824
  - - 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:2776

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Disabling Security Tools

T1089

Modify Registry

T1112

Web Service

T1102

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Web Service

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
4.0MB

MD5
6794bd2f769617fff2d209a9acb58cd6

SHA1
e45d99a99dc28d875159ffccce9d0d0918c1282d

SHA256
b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b

SHA512
d4a0ea759d88fb936acf674e29d4e1dee6c136f5a4c9739072da86fd0ba27ec084bcb2226225e90910c46682d872af50120482d9ce5b5d91af2f4491b58db067

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

Filesize
4.0MB

MD5
6794bd2f769617fff2d209a9acb58cd6

SHA1
e45d99a99dc28d875159ffccce9d0d0918c1282d

SHA256
b353a9b231712cc0bb9003423783f042e786184c473bf89bcd753f5a4bf43d2b

SHA512
d4a0ea759d88fb936acf674e29d4e1dee6c136f5a4c9739072da86fd0ba27ec084bcb2226225e90910c46682d872af50120482d9ce5b5d91af2f4491b58db067

Download Submit
memory/1532-159-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-151-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-123-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-124-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-125-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-126-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-127-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-128-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-129-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-130-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-131-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-132-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-133-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-134-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-136-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-137-0x0000000002AD0000-0x0000000002EBD000-memory.dmp

Filesize
3.9MB

Download
memory/1532-138-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-139-0x0000000002EC0000-0x0000000003737000-memory.dmp

Filesize
8.5MB

Download
memory/1532-140-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-141-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-142-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-143-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-145-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-144-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-146-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-147-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-148-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-150-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/1532-161-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-149-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-152-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-153-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-154-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-155-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-156-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-157-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-158-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-121-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-122-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-160-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-185-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-163-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-164-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-166-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-167-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-168-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-165-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-169-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-170-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-171-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-173-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-172-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-175-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-174-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-177-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-178-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-181-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-182-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-179-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-180-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-176-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-183-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-184-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-162-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-187-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-186-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/1532-248-0x0000000002EC0000-0x0000000003737000-memory.dmp

Filesize
8.5MB

Download
memory/1532-251-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/1532-120-0x0000000077D70000-0x0000000077EFE000-memory.dmp

Filesize
1.6MB

Download
memory/2192-297-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/2192-308-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/2192-291-0x00000000028A0000-0x0000000002C93000-memory.dmp

Filesize
3.9MB

Download
memory/4668-344-0x0000000002F00000-0x00000000032EA000-memory.dmp

Filesize
3.9MB

Download
memory/4668-349-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4668-384-0x0000000002F00000-0x00000000032EA000-memory.dmp

Filesize
3.9MB

Download
memory/4668-385-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download