glupteba | efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7

Analysis

max time kernel
149s
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
29-12-2024 14:22

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General

Target

JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Size

4.1MB
MD5

f050ca002be59c66ee2c0b24fcf85ec5
SHA1

3c0ee6786147ba940b56cd59e71fe215d9cd0a32
SHA256

efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7
SHA512

7de3b8b46406801efed5ba959b228d1294504276c17afac644810c40f20bf7b4592f8496ecf86b62aae2c807f8106c0a04e7bc0f831cf20e0bde5b4b469fad06
SSDEEP

98304:81tqruineCsiTplaIqodjxLmpO5JBiIfkAyz/omJVea10:EQeCsCpBqcxapO5JBPkRTomJov

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/2432-2-0x0000000002FB0000-0x0000000003826000-memory.dmp	family_glupteba
behavioral2/memory/2432-3-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/2432-5-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/2432-6-0x0000000002FB0000-0x0000000003826000-memory.dmp	family_glupteba
behavioral2/memory/3320-8-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/3320-14-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/5036-20-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/5036-21-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/5036-22-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/5036-23-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/5036-24-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/5036-25-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/5036-26-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/5036-27-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/5036-28-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/5036-29-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/5036-30-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/5036-31-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/5036-32-0x0000000000400000-0x0000000000C91000-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
4904	netsh.exe

Executes dropped EXE 2 IoCs

pid	Process
5036	csrss.exe
2804	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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\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
48	raw.githubusercontent.com
49	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_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
File created	C:\Windows\rss\csrss.exe	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.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
2980	3320	WerFault.exe	89

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_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.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\Disallowed	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-392 = "Arab Standard Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2181 = "Astrakhan Daylight Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-112 = "Eastern Standard Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1861 = "Russia TZ 6 Daylight Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1842 = "Russia TZ 4 Standard Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-31 = "Mid-Atlantic Daylight Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.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_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2391 = "Aleutian Daylight Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2492 = "Aus Central W. Standard Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.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,-261 = "GMT Daylight Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-365 = "Middle East Standard Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	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_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1721 = "Libya Daylight Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2872 = "Magallanes Standard Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.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_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	csrss.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_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-831 = "SA Eastern Daylight Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1041 = "Ulaanbaatar Daylight Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-402 = "Arabic Standard Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2531 = "Chatham Islands Daylight Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2432 = "Cuba Standard Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1841 = "Russia TZ 4 Daylight Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	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,-82 = "Atlantic Standard Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	csrss.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\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-462 = "Afghanistan Standard Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-3052 = "Qyzylorda Standard Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-121 = "SA Pacific Daylight Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.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_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2572 = "Turks and Caicos Standard Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-841 = "Argentina Daylight Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2411 = "Marquesas Daylight Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-152 = "Central America Standard Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-542 = "Myanmar Standard Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.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_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
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,-382 = "South Africa Standard Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.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,-362 = "GTB Standard Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.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_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time"	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.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
1584	schtasks.exe
1828	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2432	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
2432	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
3320	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
3320	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
3320	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
3320	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
3320	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
3320	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
3320	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
3320	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
3320	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
3320	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe
5036	csrss.exe
5036	csrss.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe
5036	csrss.exe
5036	csrss.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe
2804	injector.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2432	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Token: SeImpersonatePrivilege	2432	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
Token: SeSystemEnvironmentPrivilege	5036	csrss.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3320 wrote to memory of 4808	3320	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe	90
PID 3320 wrote to memory of 4808	3320	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe	90
PID 4808 wrote to memory of 4904	4808	cmd.exe	92
PID 4808 wrote to memory of 4904	4808	cmd.exe	92
PID 3320 wrote to memory of 5036	3320	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe	93
PID 3320 wrote to memory of 5036	3320	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe	93
PID 3320 wrote to memory of 5036	3320	JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe	93
PID 5036 wrote to memory of 2804	5036	csrss.exe	108
PID 5036 wrote to memory of 2804	5036	csrss.exe	108

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_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2432
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7.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:3320
- - 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:4808
  - - 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:4904
- - 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:5036
  - - 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:1584
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:4504
  - - 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:2804
  - - 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:1828
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3320 -s 808
    3⤵
    - Program crash
    PID:2980

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3320 -ip 3320
1⤵
PID:4544

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
f050ca002be59c66ee2c0b24fcf85ec5

SHA1
3c0ee6786147ba940b56cd59e71fe215d9cd0a32

SHA256
efca112a7977acac3977d7bb2173e707c7c30355cef6cc48c61304695dc547a7

SHA512
7de3b8b46406801efed5ba959b228d1294504276c17afac644810c40f20bf7b4592f8496ecf86b62aae2c807f8106c0a04e7bc0f831cf20e0bde5b4b469fad06

Download Submit
memory/2432-1-0x0000000002BC0000-0x0000000002FAA000-memory.dmp

Filesize
3.9MB

Download
memory/2432-2-0x0000000002FB0000-0x0000000003826000-memory.dmp

Filesize
8.5MB

Download
memory/2432-3-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/2432-5-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/2432-6-0x0000000002FB0000-0x0000000003826000-memory.dmp

Filesize
8.5MB

Download
memory/3320-7-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/3320-8-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/3320-14-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/5036-20-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/5036-21-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/5036-22-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/5036-23-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/5036-24-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/5036-25-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/5036-26-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/5036-27-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/5036-28-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/5036-29-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/5036-30-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/5036-31-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/5036-32-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download