dcrat | f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc

Analysis

max time kernel
122s
max time network
127s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
08-11-2024 06:00

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General

Target

f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
Size

2.3MB
MD5

efeb65d7748ea77088bf95d64d01dab9
SHA1

76204068586a564ed47909d98399f5b62dad8bc9
SHA256

f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc
SHA512

016711a46294ff3d00ccaae375173aadc6f6e7e0ee0a20e696a76090849e135dbd57b07d3031239667e3d3e99050edc421e143bcbded64554948e4c73545ba4e
SSDEEP

49152:NNAjgh7ll3AWyyks+zsfkRgpc/OCuYxziOHpXw8y7yuzGOni:/lh7ll3ATyks+QfMlJxziONuGii

Score

10^/10

dcrat infostealer persistence rat

Malware Config

Signatures

DcRat 35 IoCs

DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

rat infostealer dcrat

description	ioc	pid	Process
		2720	schtasks.exe
		2008	schtasks.exe
		1912	schtasks.exe
		2348	schtasks.exe
		1824	schtasks.exe
		2604	schtasks.exe
		2304	schtasks.exe
		2500	schtasks.exe
		1816	schtasks.exe
		2444	schtasks.exe
		2452	schtasks.exe
File created	C:\Program Files\Common Files\System\c5b4cb5e9653cc		f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
		2080	schtasks.exe
		1700	schtasks.exe
		2804	schtasks.exe
File created	C:\Program Files\Common Files\System\services.exe		f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
		2696	schtasks.exe
		1252	schtasks.exe
		428	schtasks.exe
		852	schtasks.exe
		2428	schtasks.exe
		2648	schtasks.exe
		1672	schtasks.exe
		516	schtasks.exe
		3016	schtasks.exe
		664	schtasks.exe
		876	schtasks.exe
		2272	schtasks.exe
		2732	schtasks.exe
		2608	schtasks.exe
		1152	schtasks.exe
		2108	schtasks.exe
		2632	schtasks.exe
		940	schtasks.exe
		1396	schtasks.exe

Dcrat family
dcrat

Modifies WinLogon for persistence 2 TTPs 11 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files\\Common Files\\System\\services.exe\", \"C:\\Recovery\\31f19e42-8726-11ef-be9a-dab21757c799\\audiodg.exe\", \"C:\\Program Files (x86)\\Common Files\\microsoft shared\\VSTA\\Pipeline.v10.0\\HostSideAdapters\\f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe\", \"C:\\MSOCache\\All Users\\{90140000-0115-0409-0000-0000000FF1CE}-C\\1033\\lsass.exe\""	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files\\Common Files\\System\\services.exe\", \"C:\\Recovery\\31f19e42-8726-11ef-be9a-dab21757c799\\audiodg.exe\", \"C:\\Program Files (x86)\\Common Files\\microsoft shared\\VSTA\\Pipeline.v10.0\\HostSideAdapters\\f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe\", \"C:\\MSOCache\\All Users\\{90140000-0115-0409-0000-0000000FF1CE}-C\\1033\\lsass.exe\", \"C:\\Program Files (x86)\\Reference Assemblies\\taskhost.exe\", \"C:\\Windows\\Fonts\\dwm.exe\", \"C:\\Recovery\\31f19e42-8726-11ef-be9a-dab21757c799\\spoolsv.exe\""	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files\\Common Files\\System\\services.exe\", \"C:\\Recovery\\31f19e42-8726-11ef-be9a-dab21757c799\\audiodg.exe\", \"C:\\Program Files (x86)\\Common Files\\microsoft shared\\VSTA\\Pipeline.v10.0\\HostSideAdapters\\f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe\", \"C:\\MSOCache\\All Users\\{90140000-0115-0409-0000-0000000FF1CE}-C\\1033\\lsass.exe\", \"C:\\Program Files (x86)\\Reference Assemblies\\taskhost.exe\", \"C:\\Windows\\Fonts\\dwm.exe\", \"C:\\Recovery\\31f19e42-8726-11ef-be9a-dab21757c799\\spoolsv.exe\", \"C:\\Users\\Public\\Desktop\\audiodg.exe\""	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files\\Common Files\\System\\services.exe\", \"C:\\Recovery\\31f19e42-8726-11ef-be9a-dab21757c799\\audiodg.exe\""	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files\\Common Files\\System\\services.exe\", \"C:\\Recovery\\31f19e42-8726-11ef-be9a-dab21757c799\\audiodg.exe\", \"C:\\Program Files (x86)\\Common Files\\microsoft shared\\VSTA\\Pipeline.v10.0\\HostSideAdapters\\f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe\""	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files\\Common Files\\System\\services.exe\", \"C:\\Recovery\\31f19e42-8726-11ef-be9a-dab21757c799\\audiodg.exe\", \"C:\\Program Files (x86)\\Common Files\\microsoft shared\\VSTA\\Pipeline.v10.0\\HostSideAdapters\\f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe\", \"C:\\MSOCache\\All Users\\{90140000-0115-0409-0000-0000000FF1CE}-C\\1033\\lsass.exe\", \"C:\\Program Files (x86)\\Reference Assemblies\\taskhost.exe\""	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files\\Common Files\\System\\services.exe\", \"C:\\Recovery\\31f19e42-8726-11ef-be9a-dab21757c799\\audiodg.exe\", \"C:\\Program Files (x86)\\Common Files\\microsoft shared\\VSTA\\Pipeline.v10.0\\HostSideAdapters\\f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe\", \"C:\\MSOCache\\All Users\\{90140000-0115-0409-0000-0000000FF1CE}-C\\1033\\lsass.exe\", \"C:\\Program Files (x86)\\Reference Assemblies\\taskhost.exe\", \"C:\\Windows\\Fonts\\dwm.exe\""	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files\\Common Files\\System\\services.exe\", \"C:\\Recovery\\31f19e42-8726-11ef-be9a-dab21757c799\\audiodg.exe\", \"C:\\Program Files (x86)\\Common Files\\microsoft shared\\VSTA\\Pipeline.v10.0\\HostSideAdapters\\f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe\", \"C:\\MSOCache\\All Users\\{90140000-0115-0409-0000-0000000FF1CE}-C\\1033\\lsass.exe\", \"C:\\Program Files (x86)\\Reference Assemblies\\taskhost.exe\", \"C:\\Windows\\Fonts\\dwm.exe\", \"C:\\Recovery\\31f19e42-8726-11ef-be9a-dab21757c799\\spoolsv.exe\", \"C:\\Users\\Public\\Desktop\\audiodg.exe\", \"C:\\Program Files\\Windows NT\\csrss.exe\""	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files\\Common Files\\System\\services.exe\", \"C:\\Recovery\\31f19e42-8726-11ef-be9a-dab21757c799\\audiodg.exe\", \"C:\\Program Files (x86)\\Common Files\\microsoft shared\\VSTA\\Pipeline.v10.0\\HostSideAdapters\\f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe\", \"C:\\MSOCache\\All Users\\{90140000-0115-0409-0000-0000000FF1CE}-C\\1033\\lsass.exe\", \"C:\\Program Files (x86)\\Reference Assemblies\\taskhost.exe\", \"C:\\Windows\\Fonts\\dwm.exe\", \"C:\\Recovery\\31f19e42-8726-11ef-be9a-dab21757c799\\spoolsv.exe\", \"C:\\Users\\Public\\Desktop\\audiodg.exe\", \"C:\\Program Files\\Windows NT\\csrss.exe\", \"C:\\Windows\\Panther\\UnattendGC\\wininit.exe\""	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files\\Common Files\\System\\services.exe\", \"C:\\Recovery\\31f19e42-8726-11ef-be9a-dab21757c799\\audiodg.exe\", \"C:\\Program Files (x86)\\Common Files\\microsoft shared\\VSTA\\Pipeline.v10.0\\HostSideAdapters\\f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe\", \"C:\\MSOCache\\All Users\\{90140000-0115-0409-0000-0000000FF1CE}-C\\1033\\lsass.exe\", \"C:\\Program Files (x86)\\Reference Assemblies\\taskhost.exe\", \"C:\\Windows\\Fonts\\dwm.exe\", \"C:\\Recovery\\31f19e42-8726-11ef-be9a-dab21757c799\\spoolsv.exe\", \"C:\\Users\\Public\\Desktop\\audiodg.exe\", \"C:\\Program Files\\Windows NT\\csrss.exe\", \"C:\\Windows\\Panther\\UnattendGC\\wininit.exe\", \"C:\\Program Files\\Mozilla Firefox\\csrss.exe\""	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files\\Common Files\\System\\services.exe\""	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe

Process spawned unexpected child process 33 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2648	2780	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1824	2780	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2732	2780	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2632	2780	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2696	2780	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2080	2780	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2604	2780	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1252	2780	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	428	2780	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1672	2780	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	516	2780	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3016	2780	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2304	2780	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2500	2780	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2608	2780	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1700	2780	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2804	2780	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2720	2780	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1816	2780	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	664	2780	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2008	2780	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	852	2780	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	940	2780	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1152	2780	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	876	2780	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2108	2780	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2428	2780	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2444	2780	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1912	2780	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2348	2780	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2272	2780	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1396	2780	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2452	2780	schtasks.exe	30

DCRat payload 3 IoCs

Detects payload of DCRat, commonly dropped by NSIS installers.

rat

resource	yara_rule
behavioral1/memory/2484-1-0x00000000012C0000-0x0000000001512000-memory.dmp	dcrat
behavioral1/files/0x000500000001960c-18.dat	dcrat
behavioral1/memory/1384-38-0x00000000011C0000-0x0000000001412000-memory.dmp	dcrat

Executes dropped EXE 1 IoCs

pid	Process
1384	dwm.exe

Adds Run key to start application 2 TTPs 22 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\lsass = "\"C:\\MSOCache\\All Users\\{90140000-0115-0409-0000-0000000FF1CE}-C\\1033\\lsass.exe\""	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dwm = "\"C:\\Windows\\Fonts\\dwm.exe\""	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\wininit = "\"C:\\Windows\\Panther\\UnattendGC\\wininit.exe\""	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Program Files\\Mozilla Firefox\\csrss.exe\""	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\services = "\"C:\\Program Files\\Common Files\\System\\services.exe\""	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\audiodg = "\"C:\\Recovery\\31f19e42-8726-11ef-be9a-dab21757c799\\audiodg.exe\""	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\taskhost = "\"C:\\Program Files (x86)\\Reference Assemblies\\taskhost.exe\""	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\spoolsv = "\"C:\\Recovery\\31f19e42-8726-11ef-be9a-dab21757c799\\spoolsv.exe\""	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc = "\"C:\\Program Files (x86)\\Common Files\\microsoft shared\\VSTA\\Pipeline.v10.0\\HostSideAdapters\\f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe\""	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\lsass = "\"C:\\MSOCache\\All Users\\{90140000-0115-0409-0000-0000000FF1CE}-C\\1033\\lsass.exe\""	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\dwm = "\"C:\\Windows\\Fonts\\dwm.exe\""	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\audiodg = "\"C:\\Users\\Public\\Desktop\\audiodg.exe\""	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Program Files\\Windows NT\\csrss.exe\""	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wininit = "\"C:\\Windows\\Panther\\UnattendGC\\wininit.exe\""	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\services = "\"C:\\Program Files\\Common Files\\System\\services.exe\""	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\audiodg = "\"C:\\Recovery\\31f19e42-8726-11ef-be9a-dab21757c799\\audiodg.exe\""	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Program Files\\Mozilla Firefox\\csrss.exe\""	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\spoolsv = "\"C:\\Recovery\\31f19e42-8726-11ef-be9a-dab21757c799\\spoolsv.exe\""	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\audiodg = "\"C:\\Users\\Public\\Desktop\\audiodg.exe\""	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Program Files\\Windows NT\\csrss.exe\""	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc = "\"C:\\Program Files (x86)\\Common Files\\microsoft shared\\VSTA\\Pipeline.v10.0\\HostSideAdapters\\f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe\""	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\taskhost = "\"C:\\Program Files (x86)\\Reference Assemblies\\taskhost.exe\""	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe

Drops file in Program Files directory 11 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Common Files\microsoft shared\VSTA\Pipeline.v10.0\HostSideAdapters\f16e63a4f36471	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
File opened for modification	C:\Program Files\Common Files\System\services.exe	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
File created	C:\Program Files\Common Files\System\c5b4cb5e9653cc	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
File created	C:\Program Files (x86)\Reference Assemblies\taskhost.exe	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
File created	C:\Program Files (x86)\Reference Assemblies\b75386f1303e64	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
File created	C:\Program Files\Windows NT\csrss.exe	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
File created	C:\Program Files\Windows NT\886983d96e3d3e	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
File created	C:\Program Files\Mozilla Firefox\csrss.exe	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
File created	C:\Program Files\Mozilla Firefox\886983d96e3d3e	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
File created	C:\Program Files\Common Files\System\services.exe	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
File created	C:\Program Files (x86)\Common Files\microsoft shared\VSTA\Pipeline.v10.0\HostSideAdapters\f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\Panther\UnattendGC\56085415360792	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
File created	C:\Windows\Fonts\dwm.exe	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
File created	C:\Windows\Fonts\6cb0b6c459d5d3	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
File created	C:\Windows\Panther\UnattendGC\wininit.exe	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Scheduled Task/Job: Scheduled Task 1 TTPs 33 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2720	schtasks.exe
1152	schtasks.exe
1396	schtasks.exe
2696	schtasks.exe
2080	schtasks.exe
516	schtasks.exe
1912	schtasks.exe
2604	schtasks.exe
1700	schtasks.exe
876	schtasks.exe
1824	schtasks.exe
1816	schtasks.exe
664	schtasks.exe
2008	schtasks.exe
852	schtasks.exe
3016	schtasks.exe
2304	schtasks.exe
2108	schtasks.exe
2428	schtasks.exe
2732	schtasks.exe
2804	schtasks.exe
940	schtasks.exe
2444	schtasks.exe
2452	schtasks.exe
1672	schtasks.exe
2500	schtasks.exe
2648	schtasks.exe
2632	schtasks.exe
1252	schtasks.exe
428	schtasks.exe
2608	schtasks.exe
2348	schtasks.exe
2272	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2484	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
2484	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
2484	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
1384	dwm.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2484	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
Token: SeDebugPrivilege	1384	dwm.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2484 wrote to memory of 1384	2484	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe	64
PID 2484 wrote to memory of 1384	2484	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe	64
PID 2484 wrote to memory of 1384	2484	f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe	64

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\f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe
"C:\Users\Admin\AppData\Local\Temp\f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe"
1⤵
- DcRat
- Modifies WinLogon for persistence
- Adds Run key to start application
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2484
- C:\Windows\Fonts\dwm.exe
  "C:\Windows\Fonts\dwm.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1384

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "servicess" /sc MINUTE /mo 9 /tr "'C:\Program Files\Common Files\System\services.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2648

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\Program Files\Common Files\System\services.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1824

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "servicess" /sc MINUTE /mo 6 /tr "'C:\Program Files\Common Files\System\services.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2732

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "audiodga" /sc MINUTE /mo 14 /tr "'C:\Recovery\31f19e42-8726-11ef-be9a-dab21757c799\audiodg.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2632

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "audiodg" /sc ONLOGON /tr "'C:\Recovery\31f19e42-8726-11ef-be9a-dab21757c799\audiodg.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2696

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "audiodga" /sc MINUTE /mo 14 /tr "'C:\Recovery\31f19e42-8726-11ef-be9a-dab21757c799\audiodg.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2080

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fcf" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\Common Files\microsoft shared\VSTA\Pipeline.v10.0\HostSideAdapters\f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2604

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc" /sc ONLOGON /tr "'C:\Program Files (x86)\Common Files\microsoft shared\VSTA\Pipeline.v10.0\HostSideAdapters\f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1252

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fcf" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\Common Files\microsoft shared\VSTA\Pipeline.v10.0\HostSideAdapters\f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:428

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 8 /tr "'C:\MSOCache\All Users\{90140000-0115-0409-0000-0000000FF1CE}-C\1033\lsass.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1672

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsass" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-0115-0409-0000-0000000FF1CE}-C\1033\lsass.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:516

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 8 /tr "'C:\MSOCache\All Users\{90140000-0115-0409-0000-0000000FF1CE}-C\1033\lsass.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3016

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "taskhostt" /sc MINUTE /mo 5 /tr "'C:\Program Files (x86)\Reference Assemblies\taskhost.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2304

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "taskhost" /sc ONLOGON /tr "'C:\Program Files (x86)\Reference Assemblies\taskhost.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2500

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "taskhostt" /sc MINUTE /mo 10 /tr "'C:\Program Files (x86)\Reference Assemblies\taskhost.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2608

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 10 /tr "'C:\Windows\Fonts\dwm.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1700

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dwm" /sc ONLOGON /tr "'C:\Windows\Fonts\dwm.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2804

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 5 /tr "'C:\Windows\Fonts\dwm.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2720

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 11 /tr "'C:\Recovery\31f19e42-8726-11ef-be9a-dab21757c799\spoolsv.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1816

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Recovery\31f19e42-8726-11ef-be9a-dab21757c799\spoolsv.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:664

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 5 /tr "'C:\Recovery\31f19e42-8726-11ef-be9a-dab21757c799\spoolsv.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2008

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "audiodga" /sc MINUTE /mo 7 /tr "'C:\Users\Public\Desktop\audiodg.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:852

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "audiodg" /sc ONLOGON /tr "'C:\Users\Public\Desktop\audiodg.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:940

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "audiodga" /sc MINUTE /mo 12 /tr "'C:\Users\Public\Desktop\audiodg.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1152

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 9 /tr "'C:\Program Files\Windows NT\csrss.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:876

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Program Files\Windows NT\csrss.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2108

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 11 /tr "'C:\Program Files\Windows NT\csrss.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2428

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 11 /tr "'C:\Windows\Panther\UnattendGC\wininit.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2444

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "wininit" /sc ONLOGON /tr "'C:\Windows\Panther\UnattendGC\wininit.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1912

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 14 /tr "'C:\Windows\Panther\UnattendGC\wininit.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2348

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 7 /tr "'C:\Program Files\Mozilla Firefox\csrss.exe'" /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2272

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Program Files\Mozilla Firefox\csrss.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1396

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 14 /tr "'C:\Program Files\Mozilla Firefox\csrss.exe'" /rl HIGHEST /f
1⤵
- DcRat
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2452

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

Winlogon Helper DLL

T1547.004

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\Reference Assemblies\taskhost.exe

Filesize
2.3MB

MD5
efeb65d7748ea77088bf95d64d01dab9

SHA1
76204068586a564ed47909d98399f5b62dad8bc9

SHA256
f1c2810c41b2ce2c8755377c3644d17762137d662ef4f03b7cddd3db992c60fc

SHA512
016711a46294ff3d00ccaae375173aadc6f6e7e0ee0a20e696a76090849e135dbd57b07d3031239667e3d3e99050edc421e143bcbded64554948e4c73545ba4e

Download Submit
memory/1384-40-0x0000000000240000-0x0000000000252000-memory.dmp

Filesize
72KB

Download
memory/1384-38-0x00000000011C0000-0x0000000001412000-memory.dmp

Filesize
2.3MB

Download
memory/2484-6-0x00000000004C0000-0x00000000004D2000-memory.dmp

Filesize
72KB

Download
memory/2484-4-0x0000000000CA0000-0x0000000000CB6000-memory.dmp

Filesize
88KB

Download
memory/2484-5-0x0000000000D50000-0x0000000000DA6000-memory.dmp

Filesize
344KB

Download
memory/2484-0-0x000007FEF5F63000-0x000007FEF5F64000-memory.dmp

Filesize
4KB

Download
memory/2484-7-0x00000000006C0000-0x00000000006CE000-memory.dmp

Filesize
56KB

Download
memory/2484-8-0x0000000000CC0000-0x0000000000CC8000-memory.dmp

Filesize
32KB

Download
memory/2484-9-0x0000000000DC0000-0x0000000000DC8000-memory.dmp

Filesize
32KB

Download
memory/2484-3-0x0000000000C80000-0x0000000000C9C000-memory.dmp

Filesize
112KB

Download
memory/2484-2-0x000007FEF5F60000-0x000007FEF694C000-memory.dmp

Filesize
9.9MB

Download
memory/2484-39-0x000007FEF5F60000-0x000007FEF694C000-memory.dmp

Filesize
9.9MB

Download
memory/2484-1-0x00000000012C0000-0x0000000001512000-memory.dmp

Filesize
2.3MB

Download