glupteba | 3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de

Analysis

max time kernel
150s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
23-12-2024 21:05

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General

Target

JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
Size

4.2MB
MD5

8918833ed0bce385bfd0f90a233fbb3d
SHA1

0b727abc70f4fcdc715796a659f8d55bb6557a56
SHA256

3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de
SHA512

cf1926ff260536d9f40756fd138dc9b3485e2e55753e86978379682d8ed34226680e6257b498a4053417c62030132af8ae42f786396b3e7b656feb9616214a4d
SSDEEP

98304:5KarrFzUTyM+xrt8S4aPjjVtUJ3wgVpW4XNRNYrLFwI0:4anFzUmM+BCS4ujIZzHNMJH0

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/3220-2-0x00000000051A0000-0x0000000005A17000-memory.dmp	family_glupteba
behavioral2/memory/3220-3-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/3220-6-0x00000000051A0000-0x0000000005A17000-memory.dmp	family_glupteba
behavioral2/memory/3220-7-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/3220-5-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/1460-14-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/1920-20-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/1920-21-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/1920-22-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/1920-23-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/1920-24-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/1920-25-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/1920-26-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/1920-27-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/1920-28-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/1920-29-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/1920-30-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/1920-31-0x0000000000400000-0x0000000003017000-memory.dmp	family_glupteba
behavioral2/memory/1920-32-0x0000000000400000-0x0000000003017000-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
4616	netsh.exe

Executes dropped EXE 2 IoCs

pid	Process
1920	csrss.exe
4532	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_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.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
50	raw.githubusercontent.com
51	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_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
File created	C:\Windows\rss\csrss.exe	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.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_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.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,-911 = "Mauritius Daylight Time"	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-3052 = "Qyzylorda Standard Time"	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time"	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	csrss.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,-461 = "Afghanistan Daylight Time"	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1021 = "Bangladesh Daylight Time"	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.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_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.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,-982 = "Kamchatka Standard Time"	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time"	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1832 = "Russia TZ 2 Standard Time"	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.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_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	csrss.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,-2531 = "Chatham Islands Daylight Time"	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.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_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time"	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2412 = "Marquesas Standard Time"	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time"	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.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,-342 = "Egypt Standard Time"	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1801 = "Line Islands Daylight Time"	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.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,-501 = "Nepal Daylight Time"	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time"	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-292 = "Central European Standard Time"	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time"	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.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_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time"	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time"	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time"	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.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_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1472 = "Magadan Standard Time"	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.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_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-385 = "Namibia Standard Time"	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	csrss.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,-222 = "Alaskan Standard Time"	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-932 = "Coordinated Universal Time"	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	csrss.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_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-671 = "AUS Eastern Daylight Time"	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.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_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time"	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-12 = "Azores Standard Time"	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-451 = "Caucasus Daylight Time"	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-541 = "Myanmar Daylight Time"	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time"	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2752 = "Tomsk Standard Time"	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
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,-912 = "Mauritius Standard Time"	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-301 = "Romance Daylight Time"	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2451 = "Saint Pierre Daylight Time"	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.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,-251 = "Dateline Daylight Time"	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.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_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.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_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2771 = "Omsk Daylight Time"	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-661 = "Cen. Australia Daylight Time"	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.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
4504	schtasks.exe
4596	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3220	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
3220	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
1460	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
1460	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
1460	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
1460	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
1460	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
1460	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
1460	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
1460	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
1460	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
1460	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe
1920	csrss.exe
1920	csrss.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe
1920	csrss.exe
1920	csrss.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe
4532	injector.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3220	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
Token: SeImpersonatePrivilege	3220	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
Token: SeSystemEnvironmentPrivilege	1920	csrss.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1460 wrote to memory of 3736	1460	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe	88
PID 1460 wrote to memory of 3736	1460	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe	88
PID 3736 wrote to memory of 4616	3736	cmd.exe	90
PID 3736 wrote to memory of 4616	3736	cmd.exe	90
PID 1460 wrote to memory of 1920	1460	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe	92
PID 1460 wrote to memory of 1920	1460	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe	92
PID 1460 wrote to memory of 1920	1460	JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe	92
PID 1920 wrote to memory of 4532	1920	csrss.exe	99
PID 1920 wrote to memory of 4532	1920	csrss.exe	99

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_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3220
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de.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:1460
- - 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:3736
  - - 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:4616
- - 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:1920
  - - 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:4504
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:4632
  - - 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:4532
  - - 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:4596

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
4.2MB

MD5
8918833ed0bce385bfd0f90a233fbb3d

SHA1
0b727abc70f4fcdc715796a659f8d55bb6557a56

SHA256
3968b7f8d1ab8b0f83c1248677fbe1bf34c266ec6ffa0a5d5eebda0c0e1ac6de

SHA512
cf1926ff260536d9f40756fd138dc9b3485e2e55753e86978379682d8ed34226680e6257b498a4053417c62030132af8ae42f786396b3e7b656feb9616214a4d

Download Submit
memory/1460-8-0x0000000000400000-0x0000000003017000-memory.dmp

Filesize
44.1MB

Download
memory/1460-14-0x0000000000400000-0x0000000003017000-memory.dmp

Filesize
44.1MB

Download
memory/1920-25-0x0000000000400000-0x0000000003017000-memory.dmp

Filesize
44.1MB

Download
memory/1920-27-0x0000000000400000-0x0000000003017000-memory.dmp

Filesize
44.1MB

Download
memory/1920-32-0x0000000000400000-0x0000000003017000-memory.dmp

Filesize
44.1MB

Download
memory/1920-31-0x0000000000400000-0x0000000003017000-memory.dmp

Filesize
44.1MB

Download
memory/1920-30-0x0000000000400000-0x0000000003017000-memory.dmp

Filesize
44.1MB

Download
memory/1920-29-0x0000000000400000-0x0000000003017000-memory.dmp

Filesize
44.1MB

Download
memory/1920-20-0x0000000000400000-0x0000000003017000-memory.dmp

Filesize
44.1MB

Download
memory/1920-21-0x0000000000400000-0x0000000003017000-memory.dmp

Filesize
44.1MB

Download
memory/1920-22-0x0000000000400000-0x0000000003017000-memory.dmp

Filesize
44.1MB

Download
memory/1920-23-0x0000000000400000-0x0000000003017000-memory.dmp

Filesize
44.1MB

Download
memory/1920-24-0x0000000000400000-0x0000000003017000-memory.dmp

Filesize
44.1MB

Download
memory/1920-28-0x0000000000400000-0x0000000003017000-memory.dmp

Filesize
44.1MB

Download
memory/1920-26-0x0000000000400000-0x0000000003017000-memory.dmp

Filesize
44.1MB

Download
memory/3220-5-0x0000000000400000-0x0000000003017000-memory.dmp

Filesize
44.1MB

Download
memory/3220-1-0x0000000003510000-0x00000000038FE000-memory.dmp

Filesize
3.9MB

Download
memory/3220-2-0x00000000051A0000-0x0000000005A17000-memory.dmp

Filesize
8.5MB

Download
memory/3220-3-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/3220-6-0x00000000051A0000-0x0000000005A17000-memory.dmp

Filesize
8.5MB

Download
memory/3220-7-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download