dcrat | 7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55

Analysis

max time kernel
131s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20250129-en
resource tags

arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
submitted
03-02-2025 01:07

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General

Target

7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
Size

1.8MB
MD5

6bbb637f1077277a20b3507dc97bc7de
SHA1

68fcbdf3a03ed5d3b20be5ccb5ba722287e132c0
SHA256

7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55
SHA512

fcf70736e50c933cb1fde526648483c34a8037ec381bf1dadb8645040b0ed45739b20b3085f468c496f278ecfc19b634e5ed09fb06728f8487655965c6e08ef3
SSDEEP

24576:9nKomQbHAScRsd289QkfU9aEENG3xnt7w0sprTOx/vIwtU7nGYpm1CIV:xusQaD89KGhnt0FprTuGn

Score

10^/10

dcrat discovery infostealer persistence rat spyware stealer

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:\\Program Files (x86)\\Windows Media Player\\Skins\\wininit.exe\", \"C:\\Recovery\\WindowsRE\\SppExtComObj.exe\", \"C:\\Program Files\\Windows Portable Devices\\backgroundTaskHost.exe\""	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Windows Media Player\\Skins\\wininit.exe\", \"C:\\Recovery\\WindowsRE\\SppExtComObj.exe\", \"C:\\Program Files\\Windows Portable Devices\\backgroundTaskHost.exe\", \"C:\\Recovery\\WindowsRE\\spoolsv.exe\""	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Windows Media Player\\Skins\\wininit.exe\", \"C:\\Recovery\\WindowsRE\\SppExtComObj.exe\", \"C:\\Program Files\\Windows Portable Devices\\backgroundTaskHost.exe\", \"C:\\Recovery\\WindowsRE\\spoolsv.exe\", \"C:\\Windows\\twain_32\\smss.exe\""	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Windows Media Player\\Skins\\wininit.exe\", \"C:\\Recovery\\WindowsRE\\SppExtComObj.exe\", \"C:\\Program Files\\Windows Portable Devices\\backgroundTaskHost.exe\", \"C:\\Recovery\\WindowsRE\\spoolsv.exe\", \"C:\\Windows\\twain_32\\smss.exe\", \"C:\\Users\\Admin\\AppData\\Local\\Temp\\7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe\""	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Windows Media Player\\Skins\\wininit.exe\""	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Windows Media Player\\Skins\\wininit.exe\", \"C:\\Recovery\\WindowsRE\\SppExtComObj.exe\""	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.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	3216	1584	schtasks.exe	86
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2636	1584	schtasks.exe	86
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	5048	1584	schtasks.exe	86
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1312	1584	schtasks.exe	86
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2300	1584	schtasks.exe	86
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4136	1584	schtasks.exe	86
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2400	1584	schtasks.exe	86
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1244	1584	schtasks.exe	86
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1416	1584	schtasks.exe	86
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1948	1584	schtasks.exe	86
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4476	1584	schtasks.exe	86
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1796	1584	schtasks.exe	86
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2452	1584	schtasks.exe	86
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4248	1584	schtasks.exe	86
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3124	1584	schtasks.exe	86
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3752	1584	schtasks.exe	86
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3140	1584	schtasks.exe	86
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2944	1584	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-1-5-21-1121399784-3202166597-3503557106-1000\Control Panel\International\Geo\Nation	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe

Executes dropped EXE 1 IoCs

pid	Process
4324	backgroundTaskHost.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

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-1-5-21-1121399784-3202166597-3503557106-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SppExtComObj = "\"C:\\Recovery\\WindowsRE\\SppExtComObj.exe\""	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1121399784-3202166597-3503557106-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\spoolsv = "\"C:\\Recovery\\WindowsRE\\spoolsv.exe\""	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\spoolsv = "\"C:\\Recovery\\WindowsRE\\spoolsv.exe\""	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe\""	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1121399784-3202166597-3503557106-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wininit = "\"C:\\Program Files (x86)\\Windows Media Player\\Skins\\wininit.exe\""	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wininit = "\"C:\\Program Files (x86)\\Windows Media Player\\Skins\\wininit.exe\""	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SppExtComObj = "\"C:\\Recovery\\WindowsRE\\SppExtComObj.exe\""	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1121399784-3202166597-3503557106-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\backgroundTaskHost = "\"C:\\Program Files\\Windows Portable Devices\\backgroundTaskHost.exe\""	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\backgroundTaskHost = "\"C:\\Program Files\\Windows Portable Devices\\backgroundTaskHost.exe\""	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1121399784-3202166597-3503557106-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\smss = "\"C:\\Windows\\twain_32\\smss.exe\""	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\smss = "\"C:\\Windows\\twain_32\\smss.exe\""	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1121399784-3202166597-3503557106-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe\""	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
7	ipinfo.io
8	ipinfo.io
42	ipinfo.io

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	\??\c:\Windows\System32\CSCC52DF364B4A04213A29D4E34321A5629.TMP	csc.exe
File created	\??\c:\Windows\System32\m6z17w.exe	csc.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File created	C:\Program Files\Windows Portable Devices\backgroundTaskHost.exe	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
File created	C:\Program Files\Windows Portable Devices\eddb19405b7ce1	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
File created	C:\Program Files (x86)\Windows Media Player\Skins\wininit.exe	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
File created	C:\Program Files (x86)\Windows Media Player\Skins\56085415360792	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\twain_32\smss.exe	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
File opened for modification	C:\Windows\twain_32\smss.exe	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
File created	C:\Windows\twain_32\69ddcba757bf72	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1121399784-3202166597-3503557106-1000_Classes\Local Settings	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.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
3216	schtasks.exe
2636	schtasks.exe
2400	schtasks.exe
4476	schtasks.exe
3124	schtasks.exe
3752	schtasks.exe
2300	schtasks.exe
4136	schtasks.exe
1796	schtasks.exe
2944	schtasks.exe
1244	schtasks.exe
2452	schtasks.exe
4248	schtasks.exe
3140	schtasks.exe
5048	schtasks.exe
1312	schtasks.exe
1416	schtasks.exe
1948	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4324	backgroundTaskHost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
Token: SeDebugPrivilege	4324	backgroundTaskHost.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1256 wrote to memory of 2492	1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe	90
PID 1256 wrote to memory of 2492	1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe	90
PID 2492 wrote to memory of 3136	2492	csc.exe	92
PID 2492 wrote to memory of 3136	2492	csc.exe	92
PID 1256 wrote to memory of 2040	1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe	111
PID 1256 wrote to memory of 2040	1256	7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe	111
PID 2040 wrote to memory of 2956	2040	cmd.exe	113
PID 2040 wrote to memory of 2956	2040	cmd.exe	113
PID 2040 wrote to memory of 228	2040	cmd.exe	114
PID 2040 wrote to memory of 228	2040	cmd.exe	114
PID 2040 wrote to memory of 4324	2040	cmd.exe	115
PID 2040 wrote to memory of 4324	2040	cmd.exe	115

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\7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe
"C:\Users\Admin\AppData\Local\Temp\7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.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:1256
- 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\rfcqkn2s\rfcqkn2s.cmdline"
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:2492
- - 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\RESB362.tmp" "c:\Windows\System32\CSCC52DF364B4A04213A29D4E34321A5629.TMP"
    3⤵
    PID:3136
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\We6PXsq9A6.bat"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2040
- - C:\Windows\system32\chcp.com
    chcp 65001
    3⤵
    PID:2956
- - C:\Windows\system32\w32tm.exe
    w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
    3⤵
    PID:228
- - C:\Program Files\Windows Portable Devices\backgroundTaskHost.exe
    "C:\Program Files\Windows Portable Devices\backgroundTaskHost.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    PID:4324

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 7 /tr "'C:\Program Files (x86)\Windows Media Player\Skins\wininit.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3216

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "wininit" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Media Player\Skins\wininit.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2636

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\Windows Media Player\Skins\wininit.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:5048

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SppExtComObjS" /sc MINUTE /mo 10 /tr "'C:\Recovery\WindowsRE\SppExtComObj.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1312

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SppExtComObj" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\SppExtComObj.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2300

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SppExtComObjS" /sc MINUTE /mo 10 /tr "'C:\Recovery\WindowsRE\SppExtComObj.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4136

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "backgroundTaskHostb" /sc MINUTE /mo 11 /tr "'C:\Program Files\Windows Portable Devices\backgroundTaskHost.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2400

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "backgroundTaskHost" /sc ONLOGON /tr "'C:\Program Files\Windows Portable Devices\backgroundTaskHost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1244

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "backgroundTaskHostb" /sc MINUTE /mo 11 /tr "'C:\Program Files\Windows Portable Devices\backgroundTaskHost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1416

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 11 /tr "'C:\Recovery\WindowsRE\spoolsv.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1948

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\spoolsv.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4476

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 11 /tr "'C:\Recovery\WindowsRE\spoolsv.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1796

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smsss" /sc MINUTE /mo 12 /tr "'C:\Windows\twain_32\smss.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2452

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\Windows\twain_32\smss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4248

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smsss" /sc MINUTE /mo 7 /tr "'C:\Windows\twain_32\smss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3124

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f557" /sc MINUTE /mo 11 /tr "'C:\Users\Admin\AppData\Local\Temp\7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3752

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55" /sc ONLOGON /tr "'C:\Users\Admin\AppData\Local\Temp\7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3140

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f557" /sc MINUTE /mo 12 /tr "'C:\Users\Admin\AppData\Local\Temp\7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2944

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

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Browser Information Discovery

T1217

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Program Files (x86)\Windows Media Player\Skins\wininit.exe

Filesize
1.8MB

MD5
6bbb637f1077277a20b3507dc97bc7de

SHA1
68fcbdf3a03ed5d3b20be5ccb5ba722287e132c0

SHA256
7f5d83a4f3158f5bbb7b556ba3db62dce18162187a54d33ed2355af2060a9f55

SHA512
fcf70736e50c933cb1fde526648483c34a8037ec381bf1dadb8645040b0ed45739b20b3085f468c496f278ecfc19b634e5ed09fb06728f8487655965c6e08ef3

Download Submit
C:\Users\Admin\AppData\Local\Temp\RESB362.tmp

Filesize
1KB

MD5
e908f574ddda5d2acad1e714cb510adb

SHA1
eaaa4d6d070fb0e3520c9840861d623298ab3e96

SHA256
ddd104b417847e45ece85659bd70fc1743fdf7914f2e0ddd77fe3e65d14f317c

SHA512
e59f2ab9568ef207dfb2d3e26e316d2d410831e08e10f42e63c549aad498af71327afedcbfa389b4079fc7f1537f110b6c4be35b189af149b4376d1be5be6689

Download Submit
C:\Users\Admin\AppData\Local\Temp\We6PXsq9A6.bat

Filesize
240B

MD5
176539556c2a27f22666b1da828e04c8

SHA1
5bff9d3323ae03bb415b8971e3a1c0f10e351171

SHA256
a6cf5e2485023f79c6fbbf5d8eb671aaf80b9f97ac6e28e96c2591abe2c0d5bd

SHA512
1d6ad94563f4d1069f147eed916e0810bbe99b9f92dd47f739569353ba4a7816d3fda0726372ea7b404886331a8cf9f23e0ef9191d0d43d506aed7a31260b467

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\rfcqkn2s\rfcqkn2s.0.cs

Filesize
393B

MD5
51a307ed1353aedac2cdd6bb60edd8b8

SHA1
450559106d658d12aba38a5885d0ecc2d683533d

SHA256
11e07fdfd7e101789ac72efd9137c9311aaa75d6f3f055103545b8c043cd4edb

SHA512
093d2c7f2539b1fe3abe0cdf804babe6fb3b80544a5250d0fd1d4df85c49714c94d8354a5220b9dad21180d99eab6f39617ececb203d3919cca7a316bf325426

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\rfcqkn2s\rfcqkn2s.cmdline

Filesize
235B

MD5
473cfe2e0f3a0f81bc920fffbd989588

SHA1
f62abc797f61734917867405107fe0160ec56566

SHA256
acfc6e43e152083d236a73516c94b1cfe22b9a743c6feb7b26862aa6fe3e9b9a

SHA512
ecb3d75b7f2f4c9dc6f5c99e4698955405356ca59b2f42f836aff6d3ba68516b6a8da38871514d5b04efa7fc9fcc3aa5312dfa30b1d6869c7ea5b2e25bee2b8b

Download Submit
\??\c:\Windows\System32\CSCC52DF364B4A04213A29D4E34321A5629.TMP

Filesize
1KB

MD5
2c62680283ce681e7f309fc0d845a1fa

SHA1
53d4d4b14160c74c9469d1203ede758bde5e9b51

SHA256
5bda5d5cc4de0e1a04df5c8f0b80fe0a61ea33ed27e6d114fd54a40b78fcad85

SHA512
717e54f6dde71d74c74d01001eb05c1b090cc2208da6d12a1c864d095bf46c58960a7db5fae9daa50a54efb634e273c66bc2240c7ec8673819475e1386112cd0

Download Submit
memory/1256-7-0x00007FFD62F50000-0x00007FFD63A11000-memory.dmp

Filesize
10.8MB

Download
memory/1256-0-0x00007FFD62F53000-0x00007FFD62F55000-memory.dmp

Filesize
8KB

Download
memory/1256-10-0x000000001AEE0000-0x000000001AEFC000-memory.dmp

Filesize
112KB

Download
memory/1256-11-0x000000001B060000-0x000000001B0B0000-memory.dmp

Filesize
320KB

Download
memory/1256-13-0x000000001AF00000-0x000000001AF18000-memory.dmp

Filesize
96KB

Download
memory/1256-15-0x00000000025A0000-0x00000000025A8000-memory.dmp

Filesize
32KB

Download
memory/1256-17-0x00000000025B0000-0x00000000025BC000-memory.dmp

Filesize
48KB

Download
memory/1256-18-0x00007FFD62F50000-0x00007FFD63A11000-memory.dmp

Filesize
10.8MB

Download
memory/1256-29-0x00007FFD62F50000-0x00007FFD63A11000-memory.dmp

Filesize
10.8MB

Download
memory/1256-8-0x00007FFD62F50000-0x00007FFD63A11000-memory.dmp

Filesize
10.8MB

Download
memory/1256-31-0x00007FFD62F50000-0x00007FFD63A11000-memory.dmp

Filesize
10.8MB

Download
memory/1256-6-0x0000000002480000-0x000000000248E000-memory.dmp

Filesize
56KB

Download
memory/1256-4-0x00007FFD62F50000-0x00007FFD63A11000-memory.dmp

Filesize
10.8MB

Download
memory/1256-39-0x00007FFD62F50000-0x00007FFD63A11000-memory.dmp

Filesize
10.8MB

Download
memory/1256-3-0x00007FFD62F50000-0x00007FFD63A11000-memory.dmp

Filesize
10.8MB

Download
memory/1256-2-0x00007FFD62F50000-0x00007FFD63A11000-memory.dmp

Filesize
10.8MB

Download
memory/1256-44-0x00007FFD62F50000-0x00007FFD63A11000-memory.dmp

Filesize
10.8MB

Download
memory/1256-51-0x00007FFD62F50000-0x00007FFD63A11000-memory.dmp

Filesize
10.8MB

Download
memory/1256-1-0x00000000001F0000-0x00000000003CE000-memory.dmp

Filesize
1.9MB

Download