glupteba | 944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
24-12-2024 02:56

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General

Target

JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Size

4.1MB
MD5

17b72b668cf5ccbcad17fedb07718d3e
SHA1

31341d7714b2b1ad599d83b1af32afa3c8d593dd
SHA256

944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6
SHA512

80377fd330a4563696847a2511d68f2e52e6b7e5d1e02fbbf851f88a572112ce6b39c390932bd11c1ecc449a85f04cc9e3864476809fb7fcf9ddc39487abe140
SSDEEP

98304:7MmV2zY+f76/1u0CTCIG578/nRGbBMys8:Y/Y8Wu0Og5Q/49A8

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 19 IoCs

resource	yara_rule
behavioral2/memory/3748-2-0x0000000002DD0000-0x0000000003647000-memory.dmp	family_glupteba
behavioral2/memory/3748-3-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/3748-6-0x0000000002DD0000-0x0000000003647000-memory.dmp	family_glupteba
behavioral2/memory/3748-4-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/4944-8-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/4944-15-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/2672-21-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/2672-22-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/2672-23-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/2672-24-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/2672-25-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/2672-26-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/2672-27-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/2672-28-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/2672-29-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/2672-30-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/2672-31-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/2672-32-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/2672-33-0x0000000000400000-0x0000000000C91000-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
2276	netsh.exe

Executes dropped EXE 2 IoCs

pid	Process
2672	csrss.exe
3620	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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\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
45	raw.githubusercontent.com
46	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_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
File created	C:\Windows\rss\csrss.exe	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
208	4944	WerFault.exe	85

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_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrss.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.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,-402 = "Arabic Standard Time"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-448 = "Azerbaijan Daylight Time"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-3052 = "Qyzylorda Standard Time"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.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_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2002 = "Cabo Verde Standard Time"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	csrss.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_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-161 = "Central Daylight Time"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-214 = "Pacific Daylight Time (Mexico)"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2752 = "Tomsk Standard Time"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-42 = "E. South America Standard Time"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-3051 = "Qyzylorda Daylight Time"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-692 = "Tasmania Standard Time"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-435 = "Georgian Standard Time"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1871 = "Russia TZ 7 Daylight Time"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	csrss.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,-272 = "Greenwich Standard Time"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-832 = "SA Eastern Standard Time"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2892 = "Sudan Standard Time"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-892 = "Morocco Standard Time"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2772 = "Omsk Standard Time"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.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_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-92 = "Pacific SA Standard Time"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2182 = "Astrakhan Standard Time"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.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_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	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_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\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_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-222 = "Alaskan Standard Time"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-142 = "Canada Central Standard Time"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time"	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.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
1152	schtasks.exe
1512	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3748	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
3748	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
4944	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
4944	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
4944	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
4944	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
4944	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
4944	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
4944	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
4944	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
4944	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
4944	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe
2672	csrss.exe
2672	csrss.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe
2672	csrss.exe
2672	csrss.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe
3620	injector.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3748	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Token: SeImpersonatePrivilege	3748	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
Token: SeSystemEnvironmentPrivilege	2672	csrss.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4944 wrote to memory of 1212	4944	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe	86
PID 4944 wrote to memory of 1212	4944	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe	86
PID 1212 wrote to memory of 2276	1212	cmd.exe	88
PID 1212 wrote to memory of 2276	1212	cmd.exe	88
PID 4944 wrote to memory of 2672	4944	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe	89
PID 4944 wrote to memory of 2672	4944	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe	89
PID 4944 wrote to memory of 2672	4944	JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe	89
PID 2672 wrote to memory of 3620	2672	csrss.exe	102
PID 2672 wrote to memory of 3620	2672	csrss.exe	102

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_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3748
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6.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:4944
- - 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:1212
  - - 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:2276
- - 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:2672
  - - 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:1152
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:3760
  - - 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:3620
  - - 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:1512
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4944 -s 840
    3⤵
    - Program crash
    PID:208

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4944 -ip 4944
1⤵
PID:4784

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

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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
17b72b668cf5ccbcad17fedb07718d3e

SHA1
31341d7714b2b1ad599d83b1af32afa3c8d593dd

SHA256
944bd98db31c04080a1ef2735777b035f6c03dcb036c38abdaf62da913172ff6

SHA512
80377fd330a4563696847a2511d68f2e52e6b7e5d1e02fbbf851f88a572112ce6b39c390932bd11c1ecc449a85f04cc9e3864476809fb7fcf9ddc39487abe140

Download Submit
memory/2672-26-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/2672-29-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/2672-33-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/2672-32-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/2672-31-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/2672-30-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/2672-28-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/2672-27-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/2672-21-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/2672-22-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/2672-23-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/2672-24-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/2672-25-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/3748-1-0x00000000029D0000-0x0000000002DC2000-memory.dmp

Filesize
3.9MB

Download
memory/3748-2-0x0000000002DD0000-0x0000000003647000-memory.dmp

Filesize
8.5MB

Download
memory/3748-6-0x0000000002DD0000-0x0000000003647000-memory.dmp

Filesize
8.5MB

Download
memory/3748-3-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/3748-4-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4944-15-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4944-8-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4944-7-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download