glupteba | 5fb2f862e4f1fd327c0a493082de9b66fb7a91d4dccef8273b7f75926d888826

Analysis

max time kernel
146s
max time network
136s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
23-12-2024 12:46

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General

Target

a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Size

4.0MB
MD5

f1953eaf2c48b94bb9772bfe38d552e3
SHA1

631171103c9bcfb7219353d95d37e313d7365682
SHA256

a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab
SHA512

29d145c5bd8bb906aa754c20e46541971bb1deae7d987a47899b58b3c01db8f6e5ca4119f713ceeffa7156a5fb01255f46375e806afd41364c66b2ccb5863fd5
SSDEEP

98304:8R1MyoGwSUz6jx/0veUrId0IlpmWMzAG4u5MYkVmE:8RbJuveGId3QzAG4u5ZG

Score

10^/10

glupteba discovery dropper evasion loader persistence privilege_escalation trojan

Malware Config

Signatures

Glupteba
Glupteba is a modular loader written in Golang with various components.
loader dropper glupteba
Glupteba family
glupteba

Glupteba payload 16 IoCs

resource	yara_rule
behavioral1/memory/2756-2-0x00000000012A0000-0x000000000198F000-memory.dmp	family_glupteba
behavioral1/memory/2756-3-0x0000000000400000-0x0000000000B0A000-memory.dmp	family_glupteba
behavioral1/memory/2756-5-0x0000000000400000-0x0000000000B0A000-memory.dmp	family_glupteba
behavioral1/memory/2524-7-0x0000000000400000-0x0000000000B0A000-memory.dmp	family_glupteba
behavioral1/memory/2524-8-0x0000000000400000-0x0000000000B0A000-memory.dmp	family_glupteba
behavioral1/memory/2524-18-0x0000000000400000-0x0000000000B0A000-memory.dmp	family_glupteba
behavioral1/memory/2704-20-0x0000000000400000-0x0000000000B0A000-memory.dmp	family_glupteba
behavioral1/memory/2704-32-0x0000000000400000-0x0000000000B0A000-memory.dmp	family_glupteba
behavioral1/memory/2704-33-0x0000000000400000-0x0000000000B0A000-memory.dmp	family_glupteba
behavioral1/memory/2704-34-0x0000000000400000-0x0000000000B0A000-memory.dmp	family_glupteba
behavioral1/memory/2704-35-0x0000000000400000-0x0000000000B0A000-memory.dmp	family_glupteba
behavioral1/memory/2704-36-0x0000000000400000-0x0000000000B0A000-memory.dmp	family_glupteba
behavioral1/memory/2704-38-0x0000000000400000-0x0000000000B0A000-memory.dmp	family_glupteba
behavioral1/memory/2704-39-0x0000000000400000-0x0000000000B0A000-memory.dmp	family_glupteba
behavioral1/memory/2704-40-0x0000000000400000-0x0000000000B0A000-memory.dmp	family_glupteba
behavioral1/memory/2704-43-0x0000000000400000-0x0000000000B0A000-memory.dmp	family_glupteba

Windows security bypass 2 TTPs 12 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe = "0"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows = "0"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\cloudnet.exe = "0"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\EpicNet Inc\CloudNet = "0"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\MuddyFog = "0"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\wup = "0"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
1616	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
2704	csrss.exe

Loads dropped DLL 2 IoCs

pid	Process
2524	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
2524	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe

Windows security modification 2 TTPs 12 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows = "0"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\MuddyFog = "0"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\wup = "0"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\System32\drivers = "0"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\windefender.exe = "0"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe = "0"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\rss = "0"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\EpicNet Inc\CloudNet = "0"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\csrss = "0"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\windefender.exe = "0"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\csrss.exe = "0"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Processes\cloudnet.exe = "0"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\MuddyFog = "\"C:\\Windows\\rss\\csrss.exe\""	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.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	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\Logs\CBS\CbsPersist_20241223124650.cab	makecab.exe
File opened for modification	C:\Windows\rss	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
File created	C:\Windows\rss\csrss.exe	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.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	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.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\2D\52C64B7E\@%SystemRoot%\system32\dhcpqec.dll,-100 = "DHCP Quarantine Enforcement Client"	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\tsgqec.dll,-100 = "RD Gateway Quarantine Enforcement Client"	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-32 = "Mid-Atlantic Standard Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\trust\CRLs	csrss.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	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\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-12 = "Azores Standard Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-521 = "N. Central Asia Daylight Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-591 = "Malay Peninsula Daylight Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-511 = "Central Asia Daylight Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-241 = "Samoa Daylight Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-751 = "Tonga Daylight Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-105 = "Central Brazilian Standard Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\tsgqec.dll,-101 = "Provides RD Gateway enforcement for NAP"	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-351 = "FLE Daylight Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-981 = "Kamchatka Daylight Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-181 = "Mountain Daylight Time (Mexico)"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-71 = "Newfoundland Daylight Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.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\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-151 = "Central America Daylight Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-732 = "Fiji Standard Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-51 = "Greenland Daylight Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	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\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-191 = "Mountain Daylight Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-121 = "SA Pacific Daylight Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-651 = "AUS Central Daylight Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-282 = "Central Europe Standard Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-491 = "India Daylight Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\TrustedPeople\CRLs	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-262 = "GMT Standard Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-561 = "SE Asia Daylight Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Key created	\REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet\Control\NetTrace	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-91 = "Pacific SA Daylight Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-791 = "SA Western Daylight Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-671 = "AUS Eastern Daylight Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-501 = "Nepal Daylight Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\SmartCardRoot\CTLs	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\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\dhcpqec.dll,-103 = "1.0"	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-452 = "Caucasus Standard Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-332 = "E. Europe Standard Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\napipsec.dll,-3 = "Microsoft Corporation"	netsh.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	csrss.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-582 = "North Asia East Standard Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-872 = "Pakistan Standard Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\C:\Windows\system32\,@tzres.dll,-932 = "Coordinated Universal Time"	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\napipsec.dll,-1 = "IPsec Relying Party"	netsh.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Disallowed\CRLs	csrss.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8	csrss.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8\Blob = 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	csrss.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2756	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
2756	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
2756	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
2756	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
2524	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
2524	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
2524	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
2704	csrss.exe
2704	csrss.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2756	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
Token: SeImpersonatePrivilege	2756	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2524 wrote to memory of 2304	2524	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe	36
PID 2524 wrote to memory of 2304	2524	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe	36
PID 2524 wrote to memory of 2304	2524	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe	36
PID 2524 wrote to memory of 2304	2524	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe	36
PID 2304 wrote to memory of 1616	2304	cmd.exe	38
PID 2304 wrote to memory of 1616	2304	cmd.exe	38
PID 2304 wrote to memory of 1616	2304	cmd.exe	38
PID 2524 wrote to memory of 2704	2524	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe	39
PID 2524 wrote to memory of 2704	2524	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe	39
PID 2524 wrote to memory of 2704	2524	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe	39
PID 2524 wrote to memory of 2704	2524	a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe	39

C:\Users\Admin\AppData\Local\Temp\a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
"C:\Users\Admin\AppData\Local\Temp\a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2756
- C:\Users\Admin\AppData\Local\Temp\a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe
  "C:\Users\Admin\AppData\Local\Temp\a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab.exe"
  2⤵
  - Windows security bypass
  - Loads dropped DLL
  - Windows security modification
  - 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:2524
- - 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:2304
  - - 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
      Modifies data under HKEY_USERS
      PID:1616
- - C:\Windows\rss\csrss.exe
    C:\Windows\rss\csrss.exe ""
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Modifies data under HKEY_USERS
    - Modifies system certificate store
    - Suspicious behavior: EnumeratesProcesses
    PID:2704

C:\Windows\system32\makecab.exe
"C:\Windows\system32\makecab.exe" C:\Windows\Logs\CBS\CbsPersist_20241223124650.log C:\Windows\Logs\CBS\CbsPersist_20241223124650.cab
1⤵
- Drops file in Windows directory
PID:2696

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

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

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Subvert Trust Controls

T1553

Install Root Certificate

T1553.004

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Windows\rss\csrss.exe

Filesize
4.0MB

MD5
f1953eaf2c48b94bb9772bfe38d552e3

SHA1
631171103c9bcfb7219353d95d37e313d7365682

SHA256
a2cbea585ececfe380a0b431d1f9ae67005cd73fd22acfde16e814dc9bb3d8ab

SHA512
29d145c5bd8bb906aa754c20e46541971bb1deae7d987a47899b58b3c01db8f6e5ca4119f713ceeffa7156a5fb01255f46375e806afd41364c66b2ccb5863fd5

Download Submit
memory/2524-6-0x0000000000E70000-0x0000000001214000-memory.dmp

Filesize
3.6MB

Download
memory/2524-18-0x0000000000400000-0x0000000000B0A000-memory.dmp

Filesize
7.0MB

Download
memory/2524-8-0x0000000000400000-0x0000000000B0A000-memory.dmp

Filesize
7.0MB

Download
memory/2524-7-0x0000000000400000-0x0000000000B0A000-memory.dmp

Filesize
7.0MB

Download
memory/2704-19-0x0000000000CC0000-0x0000000001064000-memory.dmp

Filesize
3.6MB

Download
memory/2704-35-0x0000000000400000-0x0000000000B0A000-memory.dmp

Filesize
7.0MB

Download
memory/2704-43-0x0000000000400000-0x0000000000B0A000-memory.dmp

Filesize
7.0MB

Download
memory/2704-40-0x0000000000400000-0x0000000000B0A000-memory.dmp

Filesize
7.0MB

Download
memory/2704-39-0x0000000000400000-0x0000000000B0A000-memory.dmp

Filesize
7.0MB

Download
memory/2704-38-0x0000000000400000-0x0000000000B0A000-memory.dmp

Filesize
7.0MB

Download
memory/2704-20-0x0000000000400000-0x0000000000B0A000-memory.dmp

Filesize
7.0MB

Download
memory/2704-32-0x0000000000400000-0x0000000000B0A000-memory.dmp

Filesize
7.0MB

Download
memory/2704-33-0x0000000000400000-0x0000000000B0A000-memory.dmp

Filesize
7.0MB

Download
memory/2704-34-0x0000000000400000-0x0000000000B0A000-memory.dmp

Filesize
7.0MB

Download
memory/2704-36-0x0000000000400000-0x0000000000B0A000-memory.dmp

Filesize
7.0MB

Download
memory/2756-5-0x0000000000400000-0x0000000000B0A000-memory.dmp

Filesize
7.0MB

Download
memory/2756-0-0x0000000000EF0000-0x0000000001294000-memory.dmp

Filesize
3.6MB

Download
memory/2756-1-0x0000000000EF0000-0x0000000001294000-memory.dmp

Filesize
3.6MB

Download
memory/2756-2-0x00000000012A0000-0x000000000198F000-memory.dmp

Filesize
6.9MB

Download
memory/2756-3-0x0000000000400000-0x0000000000B0A000-memory.dmp

Filesize
7.0MB

Download