dcrat | 01ffe9d6f323a1dafd7dbe75338596cb03cdbe970cdc964543ae03006c1ece85

Analysis

max time kernel
107s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
22/03/2025, 06:08

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General

Target

1f1f2a5e827f18875756710c0bc7c9016d4f1caf2f046c77abf55ec2b1c06eba.exe
Size

6.6MB
MD5

de0a7019edee67c4d04bd23a449778a5
SHA1

d919f8c2dd748a28f1d5db2f2325ade04a30d106
SHA256

1f1f2a5e827f18875756710c0bc7c9016d4f1caf2f046c77abf55ec2b1c06eba
SHA512

aadcdf280804d7a5d34ce3df08b5af7309ba43e0e03f3823e6358648e7e608b3e7bc6f8f5c09009dc4988accdfe54c289a32363c22ae3326e42dc12d8fb8d56c
SSDEEP

196608:dMPUeNo7jvD6fQiDrr6bVFqklb/DwjeKx85xgo8+:deg3vQQWIFRTDrfxZ

Score

10^/10

dcrat discovery infostealer 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

Process spawned unexpected child process 24 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	836	1416	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	556	1416	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1412	1416	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1060	1416	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	5424	1416	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1656	1416	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	980	1416	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2864	1416	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3732	1416	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1872	1416	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1756	1416	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	380	1416	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4940	1416	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	832	1416	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1328	1416	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	5744	1416	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	5168	1416	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2256	1416	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	5492	1416	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4352	1416	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	6104	1416	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1976	1416	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4432	1416	schtasks.exe	94
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1192	1416	schtasks.exe	94

DCRat payload 3 IoCs

Detects payload of DCRat, commonly dropped by NSIS installers.

rat

resource	yara_rule
behavioral22/files/0x0008000000022a61-6.dat	dcrat
behavioral22/files/0x0007000000024210-56.dat	dcrat
behavioral22/memory/5900-57-0x00000000003C0000-0x00000000004F2000-memory.dmp	dcrat

Checks computer location settings 2 TTPs 5 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-1-5-21-1062200478-553497403-3857448183-1000\Control Panel\International\Geo\Nation	1f1f2a5e827f18875756710c0bc7c9016d4f1caf2f046c77abf55ec2b1c06eba.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1062200478-553497403-3857448183-1000\Control Panel\International\Geo\Nation	udatehost.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1062200478-553497403-3857448183-1000\Control Panel\International\Geo\Nation	LunaExecuter.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1062200478-553497403-3857448183-1000\Control Panel\International\Geo\Nation	WScript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1062200478-553497403-3857448183-1000\Control Panel\International\Geo\Nation	serversession.exe

Executes dropped EXE 6 IoCs

pid	Process
2988	udatehost.exe
5820	LunaExecuter.exe
4568	Bootstrapper.exe
4812	chet.exe
5900	serversession.exe
5488	sppsvc.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

Drops file in Program Files directory 6 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Windows Sidebar\Gadgets\csrss.exe	serversession.exe
File created	C:\Program Files (x86)\Windows Sidebar\Gadgets\886983d96e3d3e	serversession.exe
File created	C:\Program Files (x86)\Microsoft\wininit.exe	serversession.exe
File created	C:\Program Files (x86)\Microsoft\56085415360792	serversession.exe
File created	C:\Program Files (x86)\Windows Sidebar\Gadgets\sppsvc.exe	serversession.exe
File created	C:\Program Files (x86)\Windows Sidebar\Gadgets\0a1fd5f707cd16	serversession.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SystemApps\Microsoft.AAD.BrokerPlugin_cw5n1h2txyewy\microsoft.system.package.metadata\Autogen\dllhost.exe	serversession.exe
File created	C:\Windows\SystemApps\Microsoft.AAD.BrokerPlugin_cw5n1h2txyewy\microsoft.system.package.metadata\Autogen\5940a34987c991	serversession.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	udatehost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	LunaExecuter.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1062200478-553497403-3857448183-1000_Classes\Local Settings	udatehost.exe

Modifies system certificate store 2 TTPs 5 IoCs

defense_evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	Bootstrapper.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	Bootstrapper.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	Bootstrapper.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	Bootstrapper.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	Bootstrapper.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 24 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
4940	schtasks.exe
980	schtasks.exe
2864	schtasks.exe
1872	schtasks.exe
1328	schtasks.exe
4352	schtasks.exe
5424	schtasks.exe
1656	schtasks.exe
5744	schtasks.exe
5168	schtasks.exe
5492	schtasks.exe
1192	schtasks.exe
832	schtasks.exe
556	schtasks.exe
1412	schtasks.exe
1060	schtasks.exe
3732	schtasks.exe
380	schtasks.exe
1976	schtasks.exe
4432	schtasks.exe
836	schtasks.exe
1756	schtasks.exe
2256	schtasks.exe
6104	schtasks.exe

Suspicious behavior: EnumeratesProcesses 18 IoCs

pid	Process
4568	Bootstrapper.exe
4568	Bootstrapper.exe
5900	serversession.exe
5900	serversession.exe
5900	serversession.exe
5488	sppsvc.exe
5488	sppsvc.exe
5488	sppsvc.exe
5488	sppsvc.exe
5488	sppsvc.exe
5488	sppsvc.exe
5488	sppsvc.exe
5488	sppsvc.exe
5488	sppsvc.exe
5488	sppsvc.exe
5488	sppsvc.exe
5488	sppsvc.exe
5488	sppsvc.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4568	Bootstrapper.exe
Token: SeDebugPrivilege	5900	serversession.exe
Token: SeDebugPrivilege	5488	sppsvc.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 404 wrote to memory of 2988	404	1f1f2a5e827f18875756710c0bc7c9016d4f1caf2f046c77abf55ec2b1c06eba.exe	88
PID 404 wrote to memory of 2988	404	1f1f2a5e827f18875756710c0bc7c9016d4f1caf2f046c77abf55ec2b1c06eba.exe	88
PID 404 wrote to memory of 2988	404	1f1f2a5e827f18875756710c0bc7c9016d4f1caf2f046c77abf55ec2b1c06eba.exe	88
PID 404 wrote to memory of 5820	404	1f1f2a5e827f18875756710c0bc7c9016d4f1caf2f046c77abf55ec2b1c06eba.exe	89
PID 404 wrote to memory of 5820	404	1f1f2a5e827f18875756710c0bc7c9016d4f1caf2f046c77abf55ec2b1c06eba.exe	89
PID 404 wrote to memory of 5820	404	1f1f2a5e827f18875756710c0bc7c9016d4f1caf2f046c77abf55ec2b1c06eba.exe	89
PID 2988 wrote to memory of 4472	2988	udatehost.exe	90
PID 2988 wrote to memory of 4472	2988	udatehost.exe	90
PID 2988 wrote to memory of 4472	2988	udatehost.exe	90
PID 5820 wrote to memory of 4568	5820	LunaExecuter.exe	91
PID 5820 wrote to memory of 4568	5820	LunaExecuter.exe	91
PID 5820 wrote to memory of 4812	5820	LunaExecuter.exe	93
PID 5820 wrote to memory of 4812	5820	LunaExecuter.exe	93
PID 4472 wrote to memory of 4652	4472	WScript.exe	95
PID 4472 wrote to memory of 4652	4472	WScript.exe	95
PID 4472 wrote to memory of 4652	4472	WScript.exe	95
PID 4652 wrote to memory of 5900	4652	cmd.exe	97
PID 4652 wrote to memory of 5900	4652	cmd.exe	97
PID 5900 wrote to memory of 5488	5900	serversession.exe	122
PID 5900 wrote to memory of 5488	5900	serversession.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\1f1f2a5e827f18875756710c0bc7c9016d4f1caf2f046c77abf55ec2b1c06eba.exe
"C:\Users\Admin\AppData\Local\Temp\1f1f2a5e827f18875756710c0bc7c9016d4f1caf2f046c77abf55ec2b1c06eba.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:404
- C:\Users\Admin\AppData\Local\Temp\udatehost.exe
  "C:\Users\Admin\AppData\Local\Temp\udatehost.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2988
- - C:\Windows\SysWOW64\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Hyperwin\Hjb4V5P3cHCi148eIE3WAmz4evXIC.vbe"
    3⤵
    - Checks computer location settings
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4472
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Hyperwin\R3CMjTZP8BpSz8qPti5wX1T6HFu.bat" "
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:4652
    - - C:\Hyperwin\serversession.exe
        
        "C:\Hyperwin\serversession.exe"
        5⤵
        Checks computer location settings
        Executes dropped EXE
        Drops file in Program Files directory
        Drops file in Windows directory
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        
        PID:5900
      - C:\Program Files (x86)\Windows Sidebar\Gadgets\sppsvc.exe
        
        "C:\Program Files (x86)\Windows Sidebar\Gadgets\sppsvc.exe"
        6⤵
        Executes dropped EXE
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:5488
- C:\Users\Admin\AppData\Local\Temp\LunaExecuter.exe
  "C:\Users\Admin\AppData\Local\Temp\LunaExecuter.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5820
- - C:\Users\Admin\AppData\Local\Temp\Bootstrapper.exe
    "C:\Users\Admin\AppData\Local\Temp\Bootstrapper.exe"
    3⤵
    - Executes dropped EXE
    - Modifies system certificate store
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4568
- - C:\Users\Admin\AppData\Local\Temp\chet.exe
    "C:\Users\Admin\AppData\Local\Temp\chet.exe"
    3⤵
    - Executes dropped EXE
    PID:4812

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 12 /tr "'C:\Hyperwin\csrss.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1192

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Hyperwin\csrss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4432

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 11 /tr "'C:\Hyperwin\csrss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:836

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 5 /tr "'C:\Program Files (x86)\Windows Sidebar\Gadgets\csrss.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1976

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Sidebar\Gadgets\csrss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:6104

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 7 /tr "'C:\Program Files (x86)\Windows Sidebar\Gadgets\csrss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4352

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sihosts" /sc MINUTE /mo 11 /tr "'C:\Hyperwin\sihost.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:5492

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sihost" /sc ONLOGON /tr "'C:\Hyperwin\sihost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2256

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sihosts" /sc MINUTE /mo 11 /tr "'C:\Hyperwin\sihost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:556

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 11 /tr "'C:\Program Files (x86)\Microsoft\wininit.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:5168

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "wininit" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft\wininit.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1412

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 8 /tr "'C:\Program Files (x86)\Microsoft\wininit.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:5744

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 9 /tr "'C:\Windows\SystemApps\Microsoft.AAD.BrokerPlugin_cw5n1h2txyewy\microsoft.system.package.metadata\Autogen\dllhost.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1328

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Windows\SystemApps\Microsoft.AAD.BrokerPlugin_cw5n1h2txyewy\microsoft.system.package.metadata\Autogen\dllhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:832

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 14 /tr "'C:\Windows\SystemApps\Microsoft.AAD.BrokerPlugin_cw5n1h2txyewy\microsoft.system.package.metadata\Autogen\dllhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4940

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 14 /tr "'C:\Program Files (x86)\Windows Sidebar\Gadgets\sppsvc.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:380

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Sidebar\Gadgets\sppsvc.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1756

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 7 /tr "'C:\Program Files (x86)\Windows Sidebar\Gadgets\sppsvc.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1872

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SearchAppS" /sc MINUTE /mo 5 /tr "'C:\Users\Default\Application Data\SearchApp.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1060

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SearchApp" /sc ONLOGON /tr "'C:\Users\Default\Application Data\SearchApp.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:5424

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SearchAppS" /sc MINUTE /mo 13 /tr "'C:\Users\Default\Application Data\SearchApp.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1656

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 7 /tr "'C:\Users\Default User\WmiPrvSE.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3732

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "WmiPrvSE" /sc ONLOGON /tr "'C:\Users\Default User\WmiPrvSE.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2864

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 12 /tr "'C:\Users\Default User\WmiPrvSE.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:980

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Subvert Trust Controls

T1553

Install Root Certificate

T1553.004

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

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Hyperwin\Hjb4V5P3cHCi148eIE3WAmz4evXIC.vbe

Filesize
212B

MD5
85877ab6e153bf42e5689631d026c9b1

SHA1
c98c4a3af23d8b123d6c00b534b7e518c8345da9

SHA256
08085e4bf0d02ae55ec88d9b2c2edcbe457ebeeb67856adfdddd7e0e03e0133d

SHA512
5282ce77719d279f083e115ec34ebeb1b1fc15810ac11edef64271cf591d2d5bf92ff45cdd6949a723aa83d2e6519e1c983c1cbcf933e139505ae57f2b7dfbc0

Download Submit
C:\Hyperwin\R3CMjTZP8BpSz8qPti5wX1T6HFu.bat

Filesize
31B

MD5
9b59f35fd079050a918897f7f14aa2b1

SHA1
60c5073fa99b294a500835deeb6bb9c9b8e50143

SHA256
3f983a6ddbe0a99e1df884a691c894aae06d6c2039450a2f8e3d7f95b0d1bce9

SHA512
16ab40fcab72d87b0ccb2c46d8e3570b431c48d79a898f38808ecb04da1161376df275d181923010da1ba7d29577826a023c0bfb43b840e6a9eae58515082f75

Download Submit
C:\Hyperwin\serversession.exe

Filesize
1.2MB

MD5
b72cb4fc6352f3c73d2ce44a6a7283cc

SHA1
820c462b9f86be10b3d36c9c9c18a79bdebac8cc

SHA256
acab91c3e070c3fdc13dbdd5414d88bc3bf021b99c5d8e4ad291da68b701cc45

SHA512
90455c4935e5436e76f3f99c95084fa77cdea33a058b6794971ff5bff3f45ab3005f9a97195916a42b2f1048534caed1cf7ab29067914dd84e5bd82b6c34eda3

Download Submit
C:\Users\Admin\AppData\Local\Temp\Bootstrapper.exe

Filesize
9.4MB

MD5
f2a6133b7f38fc49f792ae799d1b4750

SHA1
6bef46ddde325f45a0e9ff123112c96bbd47c795

SHA256
37bde6655e1272e159b9c2e3a7eee3f4e9a837c0f04240645d3991d112287f8d

SHA512
f9611bed83b4bce1841868880a42dacb6b8f7e8859be1d85b3c8d3a365a0244566cbfb12294c7b2c82b15d6c0e47095d8246a95d522c3a064a0d8511b2411254

Download Submit
C:\Users\Admin\AppData\Local\Temp\LunaExecuter.exe

Filesize
9.7MB

MD5
f5d507da4b644c46b073a0a04dec8f42

SHA1
0aa95b15479323efcb034021b0285a054c620c4d

SHA256
2199423602212428f00dfbe9eeaf0879c03ea2fe03af979728a75e7b0dc25211

SHA512
b8e79ac75d7dd88352c934ea0ea2ae8a744af1e33a8f2f5aca90fd533c3e33b9950c4566a66a348734766b1e4fcd55e633f5b43e6ca20f352a97ef881858947e

Download Submit
C:\Users\Admin\AppData\Local\Temp\chet.exe

Filesize
300KB

MD5
20cc18dc80ab60c2674753c21aee226e

SHA1
14e26414a30cb3fa982b81cfffc2c7362eb4ed3e

SHA256
f0c1314bfdebfb1d10f0bb5653784c84a716630830c30cf767e86a176f1fc4d2

SHA512
e19726cb061f7feaada09087e5a92bfa2107e0db0c3f34c987c59e6725f9eca3f892ded6ef1023307b10aa44ea0d0fd2a45f7580be3fa63d5618b3644aa95b26

Download Submit
C:\Users\Admin\AppData\Local\Temp\udatehost.exe

Filesize
1.5MB

MD5
470d853d64979edee9ff702a6313b5ab

SHA1
a6f52d4571e775e9900ef46a484265a0cb02484f

SHA256
9f4067721f2f36ed750864b60714469e752e6b4a0b560e763edf3ad4eb6cf29e

SHA512
6fdbafb7461a1b243d8605c4761a678ceea4c70f72532a091bcddbeb52bee993e4d89d31558e349052a68d2e6d30c4122098086d7d5a3162894a8e8afe70b038

Download Submit
memory/404-7-0x00007FF803C10000-0x00007FF8046D1000-memory.dmp

Filesize
10.8MB

Download
memory/404-0-0x00007FF803C13000-0x00007FF803C15000-memory.dmp

Filesize
8KB

Download
memory/404-27-0x00007FF803C10000-0x00007FF8046D1000-memory.dmp

Filesize
10.8MB

Download
memory/404-1-0x00000000007E0000-0x0000000000E86000-memory.dmp

Filesize
6.6MB

Download
memory/4812-48-0x0000000000E10000-0x0000000000E62000-memory.dmp

Filesize
328KB

Download
memory/5820-47-0x0000000000400000-0x0000000000DBC000-memory.dmp

Filesize
9.7MB

Download
memory/5900-57-0x00000000003C0000-0x00000000004F2000-memory.dmp

Filesize
1.2MB

Download
memory/5900-60-0x000000001B120000-0x000000001B136000-memory.dmp

Filesize
88KB

Download
memory/5900-61-0x0000000002730000-0x000000000273C000-memory.dmp

Filesize
48KB

Download
memory/5900-59-0x000000001B170000-0x000000001B1C0000-memory.dmp

Filesize
320KB

Download
memory/5900-58-0x00000000026C0000-0x00000000026DC000-memory.dmp

Filesize
112KB

Download