glupteba | b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9

Analysis

max time kernel
150s
max time network
154s
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 19:24

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General

Target

JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Size

4.1MB
MD5

cb9aa4aa2da9b47bd88eb9b3f90f48ec
SHA1

97c9bc9df44a449964358f6668db9da3f9f3526c
SHA256

b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9
SHA512

d672d46a94b4d73165c0d9ec4233fdda73a8d2674769eeaca5cee732e7221b6c144f3637ed75c7449eb4eaf8cfb77594737b0b519086c5d9be6cc0c584ad2788
SSDEEP

98304:9dxYaeHkagmsWIDaNaAHCaICaDrwvv6bUxp9luClSrZWRPWeWrsc:TmatjB2biPhDrwgUxp2CnPWeWz

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/4636-2-0x0000000002E90000-0x0000000003707000-memory.dmp	family_glupteba
behavioral2/memory/4636-3-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/4636-4-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/4636-6-0x0000000002E90000-0x0000000003707000-memory.dmp	family_glupteba
behavioral2/memory/1884-8-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/1884-9-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/1884-16-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/4688-22-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/4688-23-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/4688-24-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/4688-25-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/4688-26-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/4688-27-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/4688-28-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/4688-29-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/4688-30-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/4688-31-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/4688-32-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/4688-33-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/4688-34-0x0000000000400000-0x0000000000C91000-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
4932	netsh.exe

Executes dropped EXE 2 IoCs

pid	Process
4688	csrss.exe
3224	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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	csrss.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.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_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
File created	C:\Windows\rss\csrss.exe	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.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
3640	1884	WerFault.exe	86

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_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.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,-461 = "Afghanistan Daylight Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1802 = "Line Islands Standard Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1661 = "Bahia Daylight Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.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_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-182 = "Mountain Standard Time (Mexico)"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.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_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2391 = "Aleutian Daylight Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.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_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1912 = "Russia TZ 10 Standard Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.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_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-492 = "India Standard Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-41 = "E. South America Daylight Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.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_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-792 = "SA Western Standard Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.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,-11 = "Azores Daylight Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-431 = "Iran Daylight Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.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_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-3141 = "South Sudan Daylight Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-171 = "Central Daylight Time (Mexico)"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.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_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-282 = "Central Europe Standard Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-432 = "Iran Standard Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2062 = "North Korea Standard Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-122 = "SA Pacific Standard Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-222 = "Alaskan Standard Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-961 = "Paraguay Daylight Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-3052 = "Qyzylorda Standard Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.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,-402 = "Arabic Standard Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2411 = "Marquesas Daylight Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time"	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.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
1492	schtasks.exe
4684	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4636	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
4636	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
1884	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
1884	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
1884	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
1884	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
1884	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
1884	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
1884	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
1884	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
1884	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
1884	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe
4688	csrss.exe
4688	csrss.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe
4688	csrss.exe
4688	csrss.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe
3224	injector.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4636	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Token: SeImpersonatePrivilege	4636	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
Token: SeSystemEnvironmentPrivilege	4688	csrss.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1884 wrote to memory of 1256	1884	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe	87
PID 1884 wrote to memory of 1256	1884	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe	87
PID 1256 wrote to memory of 4932	1256	cmd.exe	89
PID 1256 wrote to memory of 4932	1256	cmd.exe	89
PID 1884 wrote to memory of 4688	1884	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe	90
PID 1884 wrote to memory of 4688	1884	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe	90
PID 1884 wrote to memory of 4688	1884	JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe	90
PID 4688 wrote to memory of 3224	4688	csrss.exe	98
PID 4688 wrote to memory of 3224	4688	csrss.exe	98

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_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4636
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9.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:1884
- - 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:1256
  - - 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:4932
- - 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:4688
  - - 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:1492
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:220
  - - 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:3224
  - - 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:4684
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1884 -s 740
    3⤵
    - Program crash
    PID:3640

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1884 -ip 1884
1⤵
PID:528

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
cb9aa4aa2da9b47bd88eb9b3f90f48ec

SHA1
97c9bc9df44a449964358f6668db9da3f9f3526c

SHA256
b57c5995f05277bb95c3984249722e15b6e46d9f8c35ed8eed479c25c5c9e0b9

SHA512
d672d46a94b4d73165c0d9ec4233fdda73a8d2674769eeaca5cee732e7221b6c144f3637ed75c7449eb4eaf8cfb77594737b0b519086c5d9be6cc0c584ad2788

Download Submit
memory/1884-7-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/1884-8-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/1884-9-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/1884-16-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4636-1-0x0000000002A90000-0x0000000002E86000-memory.dmp

Filesize
4.0MB

Download
memory/4636-2-0x0000000002E90000-0x0000000003707000-memory.dmp

Filesize
8.5MB

Download
memory/4636-3-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4636-4-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4636-6-0x0000000002E90000-0x0000000003707000-memory.dmp

Filesize
8.5MB

Download
memory/4688-23-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4688-22-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4688-24-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4688-25-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4688-26-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4688-27-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4688-28-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4688-29-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4688-30-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4688-31-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4688-32-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4688-33-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4688-34-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download