glupteba | 90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-12-2024 10:14

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General

Target

JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Size

4.1MB
MD5

d76d94da1b7ec7bbdaca746e9dc20723
SHA1

dff77a174c15d1cf53eea4981c05ee9a16839e30
SHA256

90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0
SHA512

f84adac58af486c6b537dc93f2f6814c2c2503c7d62749315008828d344e38e31b9d8940ceccc4edbe18e08651e3c9b8859bd6153c2dd5966f85f9c252984dc4
SSDEEP

98304:ltwI3dlRCDxbfGtatt3lWl1HFm8dLZ6rj+h3r2XMt9O5:tdl0XtUlh0gwW3t9Q

Score

10^/10

glupteba discovery dropper evasion loader persistence privilege_escalation rootkit

Malware Config

Signatures

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

Glupteba payload 20 IoCs

resource	yara_rule
behavioral2/memory/4804-2-0x0000000002E40000-0x00000000036B7000-memory.dmp	family_glupteba
behavioral2/memory/4804-3-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/4804-5-0x0000000002E40000-0x00000000036B7000-memory.dmp	family_glupteba
behavioral2/memory/4804-4-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/2088-8-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/2088-14-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/4448-21-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/4448-22-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/4448-23-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/4448-24-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/4448-25-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/4448-26-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/4448-27-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/4448-28-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/4448-29-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/4448-30-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/4448-31-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/4448-32-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/4448-33-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/4448-34-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
1480	netsh.exe

Executes dropped EXE 2 IoCs

pid	Process
4448	csrss.exe
5040	injector.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\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 2 IoCs

Web Service

T1102

flow	ioc
53	raw.githubusercontent.com
54	raw.githubusercontent.com

Manipulates WinMonFS driver. 1 IoCs

Roottkits write to WinMonFS to hide directories/files from being detected.

rootkit evasion

description	ioc	Process
File opened for modification	\??\WinMonFS	csrss.exe

Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs

Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\VBoxMiniRdrDN	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
File created	C:\Windows\rss\csrss.exe	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrss.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-391 = "Arab Daylight Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-652 = "AUS Central Standard Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-411 = "E. Africa Daylight Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-91 = "Pacific SA Daylight Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-3142 = "South Sudan Standard Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-261 = "GMT Daylight Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2452 = "Saint Pierre Standard Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-592 = "Malay Peninsula Standard Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-752 = "Tonga Standard Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-215 = "Pacific Standard Time (Mexico)"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2061 = "North Korea Daylight Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2142 = "Transbaikal Standard Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2182 = "Astrakhan Standard Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1042 = "Ulaanbaatar Standard Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-201 = "US Mountain Daylight Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2391 = "Aleutian Daylight Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-104 = "Central Brazilian Daylight Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1932 = "Russia TZ 11 Standard Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1862 = "Russia TZ 6 Standard Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-131 = "US Eastern Daylight Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-291 = "Central European Daylight Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2042 = "Eastern Standard Time (Mexico)"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2491 = "Aus Central W. Daylight Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-532 = "Sri Lanka Standard Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-382 = "South Africa Standard Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-372 = "Jerusalem Standard Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-501 = "Nepal Daylight Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-742 = "New Zealand Standard Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2842 = "Saratov Standard Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1822 = "Russia TZ 1 Standard Time"	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	csrss.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
3624	schtasks.exe
2024	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4804	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
4804	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
2088	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
2088	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
2088	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
2088	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
2088	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
2088	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
2088	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
2088	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
2088	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
2088	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
5040	injector.exe
5040	injector.exe
5040	injector.exe
5040	injector.exe
5040	injector.exe
5040	injector.exe
5040	injector.exe
4448	csrss.exe
5040	injector.exe
4448	csrss.exe
5040	injector.exe
5040	injector.exe
5040	injector.exe
5040	injector.exe
4448	csrss.exe
4448	csrss.exe
5040	injector.exe
5040	injector.exe
5040	injector.exe
5040	injector.exe
5040	injector.exe
5040	injector.exe
5040	injector.exe
5040	injector.exe
5040	injector.exe
5040	injector.exe
5040	injector.exe
5040	injector.exe
5040	injector.exe
5040	injector.exe
5040	injector.exe
5040	injector.exe
5040	injector.exe
5040	injector.exe
5040	injector.exe
5040	injector.exe
5040	injector.exe
5040	injector.exe
5040	injector.exe
5040	injector.exe
5040	injector.exe
5040	injector.exe
5040	injector.exe
5040	injector.exe
5040	injector.exe
5040	injector.exe
5040	injector.exe
5040	injector.exe
5040	injector.exe
5040	injector.exe
5040	injector.exe
5040	injector.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4804	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Token: SeImpersonatePrivilege	4804	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
Token: SeSystemEnvironmentPrivilege	4448	csrss.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2088 wrote to memory of 5036	2088	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe	86
PID 2088 wrote to memory of 5036	2088	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe	86
PID 5036 wrote to memory of 1480	5036	cmd.exe	88
PID 5036 wrote to memory of 1480	5036	cmd.exe	88
PID 2088 wrote to memory of 4448	2088	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe	89
PID 2088 wrote to memory of 4448	2088	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe	89
PID 2088 wrote to memory of 4448	2088	JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe	89
PID 4448 wrote to memory of 5040	4448	csrss.exe	94
PID 4448 wrote to memory of 5040	4448	csrss.exe	94

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4804
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0.exe"
  2⤵
  - Adds Run key to start application
  - Checks for VirtualBox DLLs, possible anti-VM trick
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Modifies data under HKEY_USERS
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2088
- - 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:5036
  - - 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
      Event Triggered Execution: Netsh Helper DLL
      PID:1480
- - C:\Windows\rss\csrss.exe
    C:\Windows\rss\csrss.exe
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Manipulates WinMonFS driver.
    - System Location Discovery: System Language Discovery
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4448
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
      4⤵
      Scheduled Task/Job: Scheduled Task
      PID:3624
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:1600
  - - 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:5040
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
      4⤵
      Scheduled Task/Job: Scheduled Task
      PID:2024

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

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:\Windows\rss\csrss.exe

Filesize
4.1MB

MD5
d76d94da1b7ec7bbdaca746e9dc20723

SHA1
dff77a174c15d1cf53eea4981c05ee9a16839e30

SHA256
90f131cd85db3f2dc201fe0583ebe1b68b2a576bdae1eabcc5ad268765c33ec0

SHA512
f84adac58af486c6b537dc93f2f6814c2c2503c7d62749315008828d344e38e31b9d8940ceccc4edbe18e08651e3c9b8859bd6153c2dd5966f85f9c252984dc4

Download Submit
memory/2088-7-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/2088-14-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/2088-8-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4448-23-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4448-25-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4448-34-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4448-33-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4448-32-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4448-21-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4448-22-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4448-31-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4448-24-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4448-30-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4448-26-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4448-27-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4448-28-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4448-29-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4804-4-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4804-1-0x0000000002A50000-0x0000000002E3F000-memory.dmp

Filesize
3.9MB

Download
memory/4804-2-0x0000000002E40000-0x00000000036B7000-memory.dmp

Filesize
8.5MB

Download
memory/4804-3-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4804-5-0x0000000002E40000-0x00000000036B7000-memory.dmp

Filesize
8.5MB

Download