dcrat | 92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
23-01-2025 03:54

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General

Target

92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
Size

769KB
MD5

e37ecdc4437e46a9e712edf5ac610e65
SHA1

e5e93b92d37911f342f93c636ecb4954862b62dc
SHA256

92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f
SHA512

5941dc1676e3b0a5c9f4bee93bc9d542ed829a4f7263fecad6f870aa084d34ce0f9f16bb794832d4b67fb81fc76ed115ad05aa3692132750132298427034c04b
SSDEEP

12288:7pTnTz9dJuydpYHA9VvNEJJMA+AppW3Ari4VVyZC0+1ctHNt8KF4AXDWZ6:7pTn5uy19V1WJMA+Ap3iE0n3c6

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 Multimedia Platform\\dllhost.exe\", \"C:\\Program Files (x86)\\Windows Media Player\\uk-UA\\backgroundTaskHost.exe\", \"C:\\Users\\Default\\My Documents\\Registry.exe\", \"C:\\Users\\Default\\Pictures\\sppsvc.exe\""	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Windows Multimedia Platform\\dllhost.exe\", \"C:\\Program Files (x86)\\Windows Media Player\\uk-UA\\backgroundTaskHost.exe\", \"C:\\Users\\Default\\My Documents\\Registry.exe\", \"C:\\Users\\Default\\Pictures\\sppsvc.exe\", \"C:\\Program Files (x86)\\Google\\Update\\1.3.36.371\\RuntimeBroker.exe\""	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Windows Multimedia Platform\\dllhost.exe\", \"C:\\Program Files (x86)\\Windows Media Player\\uk-UA\\backgroundTaskHost.exe\", \"C:\\Users\\Default\\My Documents\\Registry.exe\", \"C:\\Users\\Default\\Pictures\\sppsvc.exe\", \"C:\\Program Files (x86)\\Google\\Update\\1.3.36.371\\RuntimeBroker.exe\", \"C:\\Users\\Admin\\AppData\\Local\\Temp\\92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe\""	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Windows Multimedia Platform\\dllhost.exe\""	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Windows Multimedia Platform\\dllhost.exe\", \"C:\\Program Files (x86)\\Windows Media Player\\uk-UA\\backgroundTaskHost.exe\""	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files (x86)\\Windows Multimedia Platform\\dllhost.exe\", \"C:\\Program Files (x86)\\Windows Media Player\\uk-UA\\backgroundTaskHost.exe\", \"C:\\Users\\Default\\My Documents\\Registry.exe\""	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.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	4748	3396	schtasks.exe	83
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4088	3396	schtasks.exe	83
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1964	3396	schtasks.exe	83
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3848	3396	schtasks.exe	83
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3696	3396	schtasks.exe	83
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2396	3396	schtasks.exe	83
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3540	3396	schtasks.exe	83
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3956	3396	schtasks.exe	83
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3076	3396	schtasks.exe	83
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	436	3396	schtasks.exe	83
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2316	3396	schtasks.exe	83
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1076	3396	schtasks.exe	83
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3840	3396	schtasks.exe	83
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4924	3396	schtasks.exe	83
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4576	3396	schtasks.exe	83
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2160	3396	schtasks.exe	83
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4628	3396	schtasks.exe	83
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4484	3396	schtasks.exe	83

DCRat payload 2 IoCs

rat

resource	yara_rule
behavioral2/memory/1496-1-0x00000000000F0000-0x00000000001B6000-memory.dmp	family_dcrat_v2
behavioral2/files/0x0007000000023cc8-23.dat	family_dcrat_v2

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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe

Executes dropped EXE 1 IoCs

pid	Process
4832	RuntimeBroker.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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dllhost = "\"C:\\Program Files (x86)\\Windows Multimedia Platform\\dllhost.exe\""	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Registry = "\"C:\\Users\\Default\\My Documents\\Registry.exe\""	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe\""	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Registry = "\"C:\\Users\\Default\\My Documents\\Registry.exe\""	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\sppsvc = "\"C:\\Users\\Default\\Pictures\\sppsvc.exe\""	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\sppsvc = "\"C:\\Users\\Default\\Pictures\\sppsvc.exe\""	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\RuntimeBroker = "\"C:\\Program Files (x86)\\Google\\Update\\1.3.36.371\\RuntimeBroker.exe\""	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\RuntimeBroker = "\"C:\\Program Files (x86)\\Google\\Update\\1.3.36.371\\RuntimeBroker.exe\""	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dllhost = "\"C:\\Program Files (x86)\\Windows Multimedia Platform\\dllhost.exe\""	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\backgroundTaskHost = "\"C:\\Program Files (x86)\\Windows Media Player\\uk-UA\\backgroundTaskHost.exe\""	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\backgroundTaskHost = "\"C:\\Program Files (x86)\\Windows Media Player\\uk-UA\\backgroundTaskHost.exe\""	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe\""	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	\??\c:\Windows\System32\CSCE1A5859DC0E645CDA7606E4E11C65BB.TMP	csc.exe
File created	\??\c:\Windows\System32\ewkptm.exe	csc.exe

Drops file in Program Files directory 7 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Windows Media Player\uk-UA\eddb19405b7ce1	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
File created	C:\Program Files (x86)\Windows Multimedia Platform\dllhost.exe	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
File created	C:\Program Files (x86)\Windows Multimedia Platform\5940a34987c991	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
File created	C:\Program Files (x86)\Google\Update\1.3.36.371\RuntimeBroker.exe	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\RuntimeBroker.exe	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
File created	C:\Program Files (x86)\Google\Update\1.3.36.371\9e8d7a4ca61bd9	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
File created	C:\Program Files (x86)\Windows Media Player\uk-UA\backgroundTaskHost.exe	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.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
1824	PING.EXE

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000_Classes\Local Settings	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1824	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
4748	schtasks.exe
3848	schtasks.exe
3540	schtasks.exe
3076	schtasks.exe
2316	schtasks.exe
3840	schtasks.exe
1964	schtasks.exe
3696	schtasks.exe
3956	schtasks.exe
4576	schtasks.exe
4088	schtasks.exe
436	schtasks.exe
1076	schtasks.exe
2160	schtasks.exe
4484	schtasks.exe
2396	schtasks.exe
4924	schtasks.exe
4628	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4832	RuntimeBroker.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
Token: SeDebugPrivilege	4832	RuntimeBroker.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1496 wrote to memory of 3912	1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe	87
PID 1496 wrote to memory of 3912	1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe	87
PID 3912 wrote to memory of 4680	3912	csc.exe	89
PID 3912 wrote to memory of 4680	3912	csc.exe	89
PID 1496 wrote to memory of 2436	1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe	105
PID 1496 wrote to memory of 2436	1496	92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe	105
PID 2436 wrote to memory of 1980	2436	cmd.exe	107
PID 2436 wrote to memory of 1980	2436	cmd.exe	107
PID 2436 wrote to memory of 1824	2436	cmd.exe	108
PID 2436 wrote to memory of 1824	2436	cmd.exe	108
PID 2436 wrote to memory of 4832	2436	cmd.exe	110
PID 2436 wrote to memory of 4832	2436	cmd.exe	110

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\92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe
"C:\Users\Admin\AppData\Local\Temp\92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Drops file in Program Files directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1496
- 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\cxrhzdpn\cxrhzdpn.cmdline"
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:3912
- - 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\RESB565.tmp" "c:\Windows\System32\CSCE1A5859DC0E645CDA7606E4E11C65BB.TMP"
    3⤵
    PID:4680
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\0ICpEyoToA.bat"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2436
- - C:\Windows\system32\chcp.com
    chcp 65001
    3⤵
    PID:1980
- - C:\Windows\system32\PING.EXE
    ping -n 10 localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:1824
- - C:\Program Files (x86)\Google\Update\1.3.36.371\RuntimeBroker.exe
    "C:\Program Files (x86)\Google\Update\1.3.36.371\RuntimeBroker.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    PID:4832

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 12 /tr "'C:\Program Files (x86)\Windows Multimedia Platform\dllhost.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4748

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Multimedia Platform\dllhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4088

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\Windows Multimedia Platform\dllhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1964

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "backgroundTaskHostb" /sc MINUTE /mo 14 /tr "'C:\Program Files (x86)\Windows Media Player\uk-UA\backgroundTaskHost.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3848

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "backgroundTaskHost" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Media Player\uk-UA\backgroundTaskHost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3696

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "backgroundTaskHostb" /sc MINUTE /mo 5 /tr "'C:\Program Files (x86)\Windows Media Player\uk-UA\backgroundTaskHost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2396

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 14 /tr "'C:\Users\Default\My Documents\Registry.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3540

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "Registry" /sc ONLOGON /tr "'C:\Users\Default\My Documents\Registry.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3956

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 5 /tr "'C:\Users\Default\My Documents\Registry.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3076

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 7 /tr "'C:\Users\Default\Pictures\sppsvc.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:436

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Users\Default\Pictures\sppsvc.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2316

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 11 /tr "'C:\Users\Default\Pictures\sppsvc.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 "RuntimeBrokerR" /sc MINUTE /mo 12 /tr "'C:\Program Files (x86)\Google\Update\1.3.36.371\RuntimeBroker.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3840

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Program Files (x86)\Google\Update\1.3.36.371\RuntimeBroker.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4924

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 9 /tr "'C:\Program Files (x86)\Google\Update\1.3.36.371\RuntimeBroker.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4576

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f9" /sc MINUTE /mo 12 /tr "'C:\Users\Admin\AppData\Local\Temp\92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2160

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f" /sc ONLOGON /tr "'C:\Users\Admin\AppData\Local\Temp\92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4628

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f9" /sc MINUTE /mo 5 /tr "'C:\Users\Admin\AppData\Local\Temp\92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4484

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

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\Windows Multimedia Platform\dllhost.exe

Filesize
769KB

MD5
e37ecdc4437e46a9e712edf5ac610e65

SHA1
e5e93b92d37911f342f93c636ecb4954862b62dc

SHA256
92d18c8505319ad84f1487e8a67cfe2b29d077fafb50dbe1ebfeeabd8b59d43f

SHA512
5941dc1676e3b0a5c9f4bee93bc9d542ed829a4f7263fecad6f870aa084d34ce0f9f16bb794832d4b67fb81fc76ed115ad05aa3692132750132298427034c04b

Download Submit
C:\Users\Admin\AppData\Local\Temp\0ICpEyoToA.bat

Filesize
193B

MD5
44b57c510064593881ef7dc8e5b36e07

SHA1
5fad93b386dff646c34c7e0fdf8b9a392f670872

SHA256
a9bc17270eef48a6c6df5937be7c6aefa57bf4bbe58f507267750ffd880a70b7

SHA512
0f9e70ec8cd48e644f11994ab3ad46990e43a5cbba9bec071633d2754dc56740b17fc576ce3b25417d790c4847873f83e4c5d29ae566226cba03c49df6128898

Download Submit
C:\Users\Admin\AppData\Local\Temp\RESB565.tmp

Filesize
1KB

MD5
231a19c6494989f82eff47eedfc1a20f

SHA1
2ccb3f6256717da3000c78ac2c53f354e67e514b

SHA256
b2ecaeff6651786f00bbd34784d19f2c1d71cce330024b72892e2ee5cb725fd6

SHA512
f57be4ad2dd8619579de7daaefa28d7588b7079c9cc395ae0ced4628f916f69c70c945f9a99193911d5149de3390014dba7b9d03d878a1513448914366aca659

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

Filesize
394B

MD5
354b92e6722c0543eb0afe19b2203317

SHA1
9a34665dc94aa66180c853a3da9947943b406d79

SHA256
62135b30d2b21d115e67cb655a3057eb09aaeb10e2ef2f36501d97a9e6d766b1

SHA512
56d3a784e9de3c18cc6abe54c52d77622a788dbea4aee6e5a1a4ee835ba3b3e5d3399914a73e87a80cd365ddf131c54b0783aba94240440417ace6a794a0f9ec

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

Filesize
235B

MD5
396285a20e78c96cdef1798ef396c75c

SHA1
265fc6d92ce473ef6117edbb069207f5923a3e7c

SHA256
771ec187becd910fcdedeafb68049c9cd0f2ce17b1b04c651b85951eeafd5e2c

SHA512
3e4894e0bfbbafaa7e408af61d3ab7c1518b2d5fce3381bcd39f2059204aabb30b19295cfa589385eb04237dafe0807ba2d903d48a153daf8a2d6d8234f7347e

Download Submit
\??\c:\Windows\System32\CSCE1A5859DC0E645CDA7606E4E11C65BB.TMP

Filesize
1KB

MD5
be99f41194f5159cc131a1a4353a0e0a

SHA1
f24e3bf06e777b4de8d072166cff693e43f2295c

SHA256
564d9051e5639603c83562a9ff2c2e478cc7e13d54faf39f761297bac78603bf

SHA512
51d1a50772bb7d689193e6a9b2e363185cf5438103644b2b68cf13e08274c5d99407b99f8cdc856143d28669f5ee4ee316041a8e33df42f55bfd181aa3f3c0f5

Download Submit
memory/1496-7-0x00000000009C0000-0x00000000009DC000-memory.dmp

Filesize
112KB

Download
memory/1496-0-0x00007FFCC03A3000-0x00007FFCC03A5000-memory.dmp

Filesize
8KB

Download
memory/1496-8-0x00000000023F0000-0x0000000002440000-memory.dmp

Filesize
320KB

Download
memory/1496-10-0x00000000009E0000-0x00000000009F8000-memory.dmp

Filesize
96KB

Download
memory/1496-20-0x00007FFCC03A0000-0x00007FFCC0E61000-memory.dmp

Filesize
10.8MB

Download
memory/1496-25-0x00007FFCC03A0000-0x00007FFCC0E61000-memory.dmp

Filesize
10.8MB

Download
memory/1496-29-0x00007FFCC03A0000-0x00007FFCC0E61000-memory.dmp

Filesize
10.8MB

Download
memory/1496-12-0x00000000009A0000-0x00000000009AC000-memory.dmp

Filesize
48KB

Download
memory/1496-5-0x00007FFCC03A0000-0x00007FFCC0E61000-memory.dmp

Filesize
10.8MB

Download
memory/1496-4-0x0000000000990000-0x000000000099E000-memory.dmp

Filesize
56KB

Download
memory/1496-2-0x00007FFCC03A0000-0x00007FFCC0E61000-memory.dmp

Filesize
10.8MB

Download
memory/1496-44-0x00007FFCC03A0000-0x00007FFCC0E61000-memory.dmp

Filesize
10.8MB

Download
memory/1496-1-0x00000000000F0000-0x00000000001B6000-memory.dmp

Filesize
792KB

Download
memory/4832-53-0x000000001DA10000-0x000000001DBB9000-memory.dmp

Filesize
1.7MB

Download
memory/4832-83-0x000000001DA10000-0x000000001DBB9000-memory.dmp

Filesize
1.7MB

Download