dcrat | 545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008

Analysis

max time kernel
114s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
31/10/2024, 03:13

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
Size

1.8MB
MD5

cdfe4113f2d0e3d04921aaf02a61f4c0
SHA1

f6677353b59a891a2fe06dc2971ec383154c3094
SHA256

545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008
SHA512

6892293e3a3856fd10161970e1ff149ea320bc6fc1e57c7d636d7dde25b82a9715344a5638f5d55ed4b0224cbe7af2fc8a55e6367ad3f1d5272104c7777f5404
SSDEEP

24576:opSTNuxSGxU+s8DpWgdOK5QX/aJfaOtdnDc0GcWiJHMTJd6dFdoQQDymYPj9rnWC:o/Uo5QigOMPy2TzyF2Qj9WJ

Score

10^/10

dcrat discovery infostealer persistence rat

Malware Config

Signatures

DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
rat infostealer dcrat
Dcrat family
dcrat

Modifies WinLogon for persistence 2 TTPs 6 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:\\Windows\\SoftwareDistribution\\SLS\\9482F4B4-E343-43B6-B170-9A65BC822C77\\Registry.exe\""	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\SoftwareDistribution\\SLS\\9482F4B4-E343-43B6-B170-9A65BC822C77\\Registry.exe\", \"C:\\Program Files (x86)\\Adobe\\Acrobat Reader DC\\Esl\\SppExtComObj.exe\""	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\SoftwareDistribution\\SLS\\9482F4B4-E343-43B6-B170-9A65BC822C77\\Registry.exe\", \"C:\\Program Files (x86)\\Adobe\\Acrobat Reader DC\\Esl\\SppExtComObj.exe\", \"C:\\Users\\Admin\\NetHood\\taskhostw.exe\""	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\SoftwareDistribution\\SLS\\9482F4B4-E343-43B6-B170-9A65BC822C77\\Registry.exe\", \"C:\\Program Files (x86)\\Adobe\\Acrobat Reader DC\\Esl\\SppExtComObj.exe\", \"C:\\Users\\Admin\\NetHood\\taskhostw.exe\", \"C:\\Users\\Admin\\Recent\\backgroundTaskHost.exe\""	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\SoftwareDistribution\\SLS\\9482F4B4-E343-43B6-B170-9A65BC822C77\\Registry.exe\", \"C:\\Program Files (x86)\\Adobe\\Acrobat Reader DC\\Esl\\SppExtComObj.exe\", \"C:\\Users\\Admin\\NetHood\\taskhostw.exe\", \"C:\\Users\\Admin\\Recent\\backgroundTaskHost.exe\", \"C:\\Program Files\\Microsoft Office\\PackageManifests\\winlogon.exe\""	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Windows\\SoftwareDistribution\\SLS\\9482F4B4-E343-43B6-B170-9A65BC822C77\\Registry.exe\", \"C:\\Program Files (x86)\\Adobe\\Acrobat Reader DC\\Esl\\SppExtComObj.exe\", \"C:\\Users\\Admin\\NetHood\\taskhostw.exe\", \"C:\\Users\\Admin\\Recent\\backgroundTaskHost.exe\", \"C:\\Program Files\\Microsoft Office\\PackageManifests\\winlogon.exe\", \"C:\\Users\\Admin\\AppData\\Local\\Temp\\545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe\""	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe

Process spawned unexpected child process 18 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	628	1096	schtasks.exe	86
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1076	1096	schtasks.exe	86
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1092	1096	schtasks.exe	86
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1232	1096	schtasks.exe	86
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4448	1096	schtasks.exe	86
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	764	1096	schtasks.exe	86
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4204	1096	schtasks.exe	86
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4536	1096	schtasks.exe	86
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4904	1096	schtasks.exe	86
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	5024	1096	schtasks.exe	86
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4468	1096	schtasks.exe	86
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3176	1096	schtasks.exe	86
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	668	1096	schtasks.exe	86
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2472	1096	schtasks.exe	86
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4960	1096	schtasks.exe	86
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2572	1096	schtasks.exe	86
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2764	1096	schtasks.exe	86
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2356	1096	schtasks.exe	86

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe

Executes dropped EXE 1 IoCs

pid	Process
4012	backgroundTaskHost.exe

Adds Run key to start application 2 TTPs 12 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Registry = "\"C:\\Windows\\SoftwareDistribution\\SLS\\9482F4B4-E343-43B6-B170-9A65BC822C77\\Registry.exe\""	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SppExtComObj = "\"C:\\Program Files (x86)\\Adobe\\Acrobat Reader DC\\Esl\\SppExtComObj.exe\""	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\backgroundTaskHost = "\"C:\\Users\\Admin\\Recent\\backgroundTaskHost.exe\""	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winlogon = "\"C:\\Program Files\\Microsoft Office\\PackageManifests\\winlogon.exe\""	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winlogon = "\"C:\\Program Files\\Microsoft Office\\PackageManifests\\winlogon.exe\""	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe\""	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Registry = "\"C:\\Windows\\SoftwareDistribution\\SLS\\9482F4B4-E343-43B6-B170-9A65BC822C77\\Registry.exe\""	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SppExtComObj = "\"C:\\Program Files (x86)\\Adobe\\Acrobat Reader DC\\Esl\\SppExtComObj.exe\""	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\taskhostw = "\"C:\\Users\\Admin\\NetHood\\taskhostw.exe\""	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\taskhostw = "\"C:\\Users\\Admin\\NetHood\\taskhostw.exe\""	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\backgroundTaskHost = "\"C:\\Users\\Admin\\Recent\\backgroundTaskHost.exe\""	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe\""	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	\??\c:\Windows\System32\CSCA72222686E6A4F5BAE366EF3DDDB527.TMP	csc.exe
File created	\??\c:\Windows\System32\-63gkj.exe	csc.exe

Drops file in Program Files directory 5 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Esl\SppExtComObj.exe	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
File created	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Esl\e1ef82546f0b02	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\winlogon.exe	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
File opened for modification	C:\Program Files\Microsoft Office\PackageManifests\winlogon.exe	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
File created	C:\Program Files\Microsoft Office\PackageManifests\cc11b995f2a76d	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SoftwareDistribution\SLS\9482F4B4-E343-43B6-B170-9A65BC822C77\ee2ad38f3d4382	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
File created	C:\Windows\SoftwareDistribution\SLS\9482F4B4-E343-43B6-B170-9A65BC822C77\Registry.exe	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe

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

System Information Discovery
T1082

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
5008	PING.EXE

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000_Classes\Local Settings	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
5008	PING.EXE

Scheduled Task/Job: Scheduled Task 1 TTPs 18 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
4468	schtasks.exe
668	schtasks.exe
2472	schtasks.exe
4960	schtasks.exe
2356	schtasks.exe
628	schtasks.exe
1092	schtasks.exe
4536	schtasks.exe
5024	schtasks.exe
2572	schtasks.exe
1076	schtasks.exe
4448	schtasks.exe
764	schtasks.exe
4204	schtasks.exe
4904	schtasks.exe
1232	schtasks.exe
3176	schtasks.exe
2764	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
Token: SeDebugPrivilege	4012	backgroundTaskHost.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1144 wrote to memory of 4740	1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe	90
PID 1144 wrote to memory of 4740	1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe	90
PID 4740 wrote to memory of 1192	4740	csc.exe	93
PID 4740 wrote to memory of 1192	4740	csc.exe	93
PID 1144 wrote to memory of 1848	1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe	109
PID 1144 wrote to memory of 1848	1144	545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe	109
PID 1848 wrote to memory of 4296	1848	cmd.exe	111
PID 1848 wrote to memory of 4296	1848	cmd.exe	111
PID 1848 wrote to memory of 5008	1848	cmd.exe	112
PID 1848 wrote to memory of 5008	1848	cmd.exe	112
PID 1848 wrote to memory of 4012	1848	cmd.exe	122
PID 1848 wrote to memory of 4012	1848	cmd.exe	122

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\545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe
"C:\Users\Admin\AppData\Local\Temp\545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1144
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
  "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\4t5ecc5p\4t5ecc5p.cmdline"
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:4740
- - C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
    C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES737A.tmp" "c:\Windows\System32\CSCA72222686E6A4F5BAE366EF3DDDB527.TMP"
    3⤵
    PID:1192
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\g5S83u7t2J.bat"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1848
- - C:\Windows\system32\chcp.com
    chcp 65001
    3⤵
    PID:4296
- - C:\Windows\system32\PING.EXE
    ping -n 10 localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:5008
- - C:\Users\Admin\Recent\backgroundTaskHost.exe
    "C:\Users\Admin\Recent\backgroundTaskHost.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:4012

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 14 /tr "'C:\Windows\SoftwareDistribution\SLS\9482F4B4-E343-43B6-B170-9A65BC822C77\Registry.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:628

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "Registry" /sc ONLOGON /tr "'C:\Windows\SoftwareDistribution\SLS\9482F4B4-E343-43B6-B170-9A65BC822C77\Registry.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1076

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 12 /tr "'C:\Windows\SoftwareDistribution\SLS\9482F4B4-E343-43B6-B170-9A65BC822C77\Registry.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1092

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SppExtComObjS" /sc MINUTE /mo 6 /tr "'C:\Program Files (x86)\Adobe\Acrobat Reader DC\Esl\SppExtComObj.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1232

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SppExtComObj" /sc ONLOGON /tr "'C:\Program Files (x86)\Adobe\Acrobat Reader DC\Esl\SppExtComObj.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4448

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SppExtComObjS" /sc MINUTE /mo 11 /tr "'C:\Program Files (x86)\Adobe\Acrobat Reader DC\Esl\SppExtComObj.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:764

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "taskhostwt" /sc MINUTE /mo 11 /tr "'C:\Users\Admin\NetHood\taskhostw.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4204

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "taskhostw" /sc ONLOGON /tr "'C:\Users\Admin\NetHood\taskhostw.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4536

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "taskhostwt" /sc MINUTE /mo 9 /tr "'C:\Users\Admin\NetHood\taskhostw.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4904

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "backgroundTaskHostb" /sc MINUTE /mo 12 /tr "'C:\Users\Admin\Recent\backgroundTaskHost.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:5024

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "backgroundTaskHost" /sc ONLOGON /tr "'C:\Users\Admin\Recent\backgroundTaskHost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4468

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "backgroundTaskHostb" /sc MINUTE /mo 5 /tr "'C:\Users\Admin\Recent\backgroundTaskHost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3176

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 13 /tr "'C:\Program Files\Microsoft Office\PackageManifests\winlogon.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:668

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "winlogon" /sc ONLOGON /tr "'C:\Program Files\Microsoft Office\PackageManifests\winlogon.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2472

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 11 /tr "'C:\Program Files\Microsoft Office\PackageManifests\winlogon.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4960

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N5" /sc MINUTE /mo 13 /tr "'C:\Users\Admin\AppData\Local\Temp\545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2572

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N" /sc ONLOGON /tr "'C:\Users\Admin\AppData\Local\Temp\545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2764

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N5" /sc MINUTE /mo 10 /tr "'C:\Users\Admin\AppData\Local\Temp\545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008N.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2356

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

Remote System Discovery

T1018

System Information Discovery

T1082

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\RES737A.tmp

Filesize
1KB

MD5
bff7a91937fd2a77f60b5a1eb24d6b76

SHA1
a985f6aca0fefb70ee9a4f279f7b0b9cee9aadd5

SHA256
0e6266073e401aca0ab2ec4613a61cfc5f95c74bd920794ae4e6f353a6c6afc3

SHA512
dadf3e50669ac1d3106355d37750331654c040c8269041ea4932e44066be1217c0ee7abd0679bb14849d94bb8fd29b6c81bdbcea6050ba319aa8c45d8bc3527a

Download Submit
C:\Users\Admin\AppData\Local\Temp\g5S83u7t2J.bat

Filesize
172B

MD5
7d289f2237267569bcb05f647d9eee41

SHA1
d21f497a223b7d0968e5ff32493adad551dcbab3

SHA256
6070ceca7f136b09cde917638638384bb4a0e01e57a42c98389316485a8505a3

SHA512
798c0cd4a68db71dbbae9422f9abe4d1b5f179e186101f6b34093901ac740f535a4e181c9bef16f0cd8e2dbfe52e1a8e31c108de55b4bb9b9264353c4f105e0f

Download Submit
C:\Windows\SoftwareDistribution\SLS\9482F4B4-E343-43B6-B170-9A65BC822C77\Registry.exe

Filesize
1.8MB

MD5
cdfe4113f2d0e3d04921aaf02a61f4c0

SHA1
f6677353b59a891a2fe06dc2971ec383154c3094

SHA256
545ec0cff0698c5502aa7a7727d67c8de1546f2435f94e4a845d4d65dbfb1008

SHA512
6892293e3a3856fd10161970e1ff149ea320bc6fc1e57c7d636d7dde25b82a9715344a5638f5d55ed4b0224cbe7af2fc8a55e6367ad3f1d5272104c7777f5404

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\4t5ecc5p\4t5ecc5p.0.cs

Filesize
417B

MD5
78c37edc30a65bf3d92993eb6bb5bf01

SHA1
9f00622c18e742416437340093724a394d29c129

SHA256
82dd94a8af55ea315f0a31862cf5cd792c06c082ef6bc702fa1c303b84fcb01d

SHA512
d73932dde6d9dc1cc28d5c82e65bacb012c8aa794de5812bd1120099e950758132c75b2a8890279f7b375cf7b3bef3eb068ef470ddc6245d9c94b7d55efef72e

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\4t5ecc5p\4t5ecc5p.cmdline

Filesize
235B

MD5
8a97944b590d895a4b37e88bd5d9a135

SHA1
9e3fdcbcaf75a053b074ca76146e6a460b3428ce

SHA256
89f177483fd805a90d77a5a17a35a19cf6b3e6a7cc952e522d3b5d04b7e7b987

SHA512
dca4ff159f40bcd025820f0374baee0da0c4efe4127ee79eb13d7bf3646948aa831b704c37a31a919609d67e0e12eef58a46b2f2add50b7e7fc282f7f779c4a7

Download Submit
\??\c:\Windows\System32\CSCA72222686E6A4F5BAE366EF3DDDB527.TMP

Filesize
1KB

MD5
82a7b8ef3bc275711e3b27c6df93c7ff

SHA1
bdac909f26475c94c74145576bcf22adb0f8203c

SHA256
582921e5e6617cb736006c46c9c8576d8fdefb8763469bdbf305d52d298f6124

SHA512
f2100bca60280f6ad93f40254d6fe69bd9917a44973516874aa54c28042796503daac5c51869924f5ecd17615f461dda6441f479e1201c44ad07f5a7728af248

Download Submit
memory/1144-7-0x00007FF989B40000-0x00007FF98A601000-memory.dmp

Filesize
10.8MB

Download
memory/1144-29-0x00007FF989B40000-0x00007FF98A601000-memory.dmp

Filesize
10.8MB

Download
memory/1144-10-0x000000001B900000-0x000000001B950000-memory.dmp

Filesize
320KB

Download
memory/1144-12-0x00000000012B0000-0x00000000012C8000-memory.dmp

Filesize
96KB

Download
memory/1144-15-0x0000000001270000-0x000000000127C000-memory.dmp

Filesize
48KB

Download
memory/1144-13-0x00007FF989B40000-0x00007FF98A601000-memory.dmp

Filesize
10.8MB

Download
memory/1144-16-0x00007FF989B40000-0x00007FF98A601000-memory.dmp

Filesize
10.8MB

Download
memory/1144-22-0x00007FF989B40000-0x00007FF98A601000-memory.dmp

Filesize
10.8MB

Download
memory/1144-0-0x00007FF989B43000-0x00007FF989B45000-memory.dmp

Filesize
8KB

Download
memory/1144-9-0x0000000001290000-0x00000000012AC000-memory.dmp

Filesize
112KB

Download
memory/1144-33-0x00007FF989B40000-0x00007FF98A601000-memory.dmp

Filesize
10.8MB

Download
memory/1144-6-0x0000000001220000-0x000000000122E000-memory.dmp

Filesize
56KB

Download
memory/1144-4-0x00007FF989B40000-0x00007FF98A601000-memory.dmp

Filesize
10.8MB

Download
memory/1144-36-0x00007FF989B40000-0x00007FF98A601000-memory.dmp

Filesize
10.8MB

Download
memory/1144-3-0x00007FF989B40000-0x00007FF98A601000-memory.dmp

Filesize
10.8MB

Download
memory/1144-2-0x00007FF989B40000-0x00007FF98A601000-memory.dmp

Filesize
10.8MB

Download
memory/1144-49-0x00007FF989B40000-0x00007FF98A601000-memory.dmp

Filesize
10.8MB

Download
memory/1144-1-0x0000000000710000-0x00000000008EA000-memory.dmp

Filesize
1.9MB

Download
memory/4012-58-0x00000000029B0000-0x00000000029B8000-memory.dmp

Filesize
32KB

Download