glupteba | 5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90

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 22:15

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General

Target

JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
Size

4.1MB
MD5

092de17201db0405173da0e45cb586f7
SHA1

11083f3fdbbd7a6cd82c624ac738dfd1d4feadb0
SHA256

5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90
SHA512

af5342a7c8c8a204ea62d6492dc60dd5ae30f50cb5868da3804be41197de82882ad0b3be1b715242fb71add03bede4aa723898e68b05ab094a28da65c4285f44
SSDEEP

98304:ym00TdmKgb6GMZr9Fbw3WF6/w6nn8ZBybm6pu:jPpmjOUGdyaX

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/4940-2-0x0000000005140000-0x00000000059B7000-memory.dmp	family_glupteba
behavioral2/memory/4940-3-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/4940-6-0x0000000000400000-0x0000000000C91000-memory.dmp	family_glupteba
behavioral2/memory/4940-7-0x0000000005140000-0x00000000059B7000-memory.dmp	family_glupteba
behavioral2/memory/4940-5-0x0000000000400000-0x0000000003013000-memory.dmp	family_glupteba
behavioral2/memory/3992-11-0x0000000000400000-0x0000000003013000-memory.dmp	family_glupteba
behavioral2/memory/444-19-0x0000000000400000-0x0000000003013000-memory.dmp	family_glupteba
behavioral2/memory/444-20-0x0000000000400000-0x0000000003013000-memory.dmp	family_glupteba
behavioral2/memory/444-21-0x0000000000400000-0x0000000003013000-memory.dmp	family_glupteba
behavioral2/memory/444-22-0x0000000000400000-0x0000000003013000-memory.dmp	family_glupteba
behavioral2/memory/444-23-0x0000000000400000-0x0000000003013000-memory.dmp	family_glupteba
behavioral2/memory/444-24-0x0000000000400000-0x0000000003013000-memory.dmp	family_glupteba
behavioral2/memory/444-25-0x0000000000400000-0x0000000003013000-memory.dmp	family_glupteba
behavioral2/memory/444-26-0x0000000000400000-0x0000000003013000-memory.dmp	family_glupteba
behavioral2/memory/444-27-0x0000000000400000-0x0000000003013000-memory.dmp	family_glupteba
behavioral2/memory/444-28-0x0000000000400000-0x0000000003013000-memory.dmp	family_glupteba
behavioral2/memory/444-29-0x0000000000400000-0x0000000003013000-memory.dmp	family_glupteba
behavioral2/memory/444-30-0x0000000000400000-0x0000000003013000-memory.dmp	family_glupteba
behavioral2/memory/444-31-0x0000000000400000-0x0000000003013000-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
2344	netsh.exe

Executes dropped EXE 2 IoCs

pid	Process
444	csrss.exe
3676	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\""	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.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\""	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
46	raw.githubusercontent.com
47	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_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\rss\csrss.exe	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
File opened for modification	C:\Windows\rss	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.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_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.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,-112 = "Eastern Standard Time"	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.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_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time"	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	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,-1662 = "Bahia Standard Time"	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1022 = "Bangladesh Standard Time"	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time"	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-302 = "Romance Standard Time"	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.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_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1412 = "Syria Standard Time"	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.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,-2002 = "Cabo Verde Standard Time"	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2792 = "Novosibirsk Standard Time"	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	csrss.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,-41 = "E. South America Daylight Time"	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.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_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.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_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	csrss.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,-1471 = "Magadan Daylight Time"	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-891 = "Morocco Daylight Time"	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time"	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.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,-892 = "Morocco Standard Time"	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-931 = "Coordinated Universal Time"	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.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,-2611 = "Bougainville Daylight Time"	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.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_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.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_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-772 = "Montevideo Standard Time"	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time"	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time"	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-401 = "Arabic Daylight Time"	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-432 = "Iran Standard Time"	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-192 = "Mountain Standard Time"	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-212 = "Pacific Standard Time"	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.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,-502 = "Nepal Standard Time"	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-961 = "Paraguay Daylight Time"	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time"	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-131 = "US Eastern Daylight Time"	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-162 = "Central Standard Time"	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time"	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.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_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-771 = "Montevideo Daylight Time"	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.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_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2941 = "Sao Tome Daylight Time"	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-591 = "Malay Peninsula Daylight Time"	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.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_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.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_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1502 = "Turkey Standard Time"	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2412 = "Marquesas Standard Time"	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-912 = "Mauritius Standard Time"	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-242 = "Samoa Standard Time"	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.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_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.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,-261 = "GMT Daylight Time"	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.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_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-3142 = "South Sudan Standard Time"	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time"	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.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
4720	schtasks.exe
2440	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4940	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
4940	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
3992	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
3992	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
3992	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
3992	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
3992	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
3992	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
3992	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
3992	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
3992	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
3992	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe
444	csrss.exe
444	csrss.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe
444	csrss.exe
444	csrss.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe
3676	injector.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4940	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
Token: SeImpersonatePrivilege	4940	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
Token: SeSystemEnvironmentPrivilege	444	csrss.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3992 wrote to memory of 4968	3992	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe	89
PID 3992 wrote to memory of 4968	3992	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe	89
PID 4968 wrote to memory of 2344	4968	cmd.exe	91
PID 4968 wrote to memory of 2344	4968	cmd.exe	91
PID 3992 wrote to memory of 444	3992	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe	92
PID 3992 wrote to memory of 444	3992	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe	92
PID 3992 wrote to memory of 444	3992	JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe	92
PID 444 wrote to memory of 3676	444	csrss.exe	99
PID 444 wrote to memory of 3676	444	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_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4940
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90.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:3992
- - 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:4968
  - - 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:2344
- - 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:444
  - - 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:2440
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:3168
  - - 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:3676
  - - 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:4720

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
092de17201db0405173da0e45cb586f7

SHA1
11083f3fdbbd7a6cd82c624ac738dfd1d4feadb0

SHA256
5a8f50856b44ba998fdb98292fc1f51fbd341a3d930cdb414f9b792826addc90

SHA512
af5342a7c8c8a204ea62d6492dc60dd5ae30f50cb5868da3804be41197de82882ad0b3be1b715242fb71add03bede4aa723898e68b05ab094a28da65c4285f44

Download Submit
memory/444-25-0x0000000000400000-0x0000000003013000-memory.dmp

Filesize
44.1MB

Download
memory/444-26-0x0000000000400000-0x0000000003013000-memory.dmp

Filesize
44.1MB

Download
memory/444-31-0x0000000000400000-0x0000000003013000-memory.dmp

Filesize
44.1MB

Download
memory/444-30-0x0000000000400000-0x0000000003013000-memory.dmp

Filesize
44.1MB

Download
memory/444-29-0x0000000000400000-0x0000000003013000-memory.dmp

Filesize
44.1MB

Download
memory/444-28-0x0000000000400000-0x0000000003013000-memory.dmp

Filesize
44.1MB

Download
memory/444-27-0x0000000000400000-0x0000000003013000-memory.dmp

Filesize
44.1MB

Download
memory/444-19-0x0000000000400000-0x0000000003013000-memory.dmp

Filesize
44.1MB

Download
memory/444-20-0x0000000000400000-0x0000000003013000-memory.dmp

Filesize
44.1MB

Download
memory/444-21-0x0000000000400000-0x0000000003013000-memory.dmp

Filesize
44.1MB

Download
memory/444-22-0x0000000000400000-0x0000000003013000-memory.dmp

Filesize
44.1MB

Download
memory/444-23-0x0000000000400000-0x0000000003013000-memory.dmp

Filesize
44.1MB

Download
memory/444-24-0x0000000000400000-0x0000000003013000-memory.dmp

Filesize
44.1MB

Download
memory/3992-11-0x0000000000400000-0x0000000003013000-memory.dmp

Filesize
44.1MB

Download
memory/4940-1-0x0000000004D50000-0x000000000513F000-memory.dmp

Filesize
3.9MB

Download
memory/4940-2-0x0000000005140000-0x00000000059B7000-memory.dmp

Filesize
8.5MB

Download
memory/4940-6-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4940-3-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4940-5-0x0000000000400000-0x0000000003013000-memory.dmp

Filesize
44.1MB

Download
memory/4940-7-0x0000000005140000-0x00000000059B7000-memory.dmp

Filesize
8.5MB

Download