dcrat | a083297276d53c1ea773b6a44715daa36259a8a9efcbc9c18818903c25663847

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
16/05/2024, 02:37

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Report Analysis Logs

General

Target
4b501fa87e3f05f21f0e85ed63f0deb4.exe
Size 1.2MB
Sample240516-c39xqagf7v
SHA256 a083297276d53c1ea773b6a44715daa36259a8a9efcbc9c18818903c25663847
MD5 4b501fa87e3f05f21f0e85ed63f0deb4
SHA1 ab1f15913d82d926441805a9cd847353836a7816
SHA512 3e364b17ed3bc9c4b9a696ae30ef2ee001a1012c8e51c35da41234c1127b6998e81b668078aaf99ea12cbdd4ab5e29ec2ea63f1efec4b4c41c19cdd46c515de8
SSDEEP 24576:U2G/nvxW3Ww0t7lDVLfVQ8KMYD/KXZfjaV8bGjqHGrFo:UbA307HV7CEZ7HW7K
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

dcrat infostealer rat

Malware Config

Signatures

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

Process spawned unexpected child process 45 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	1616	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3812	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3980	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4224	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2780	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3284	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1640	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3904	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3324	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3504	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1388	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1072	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4012	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3016	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2264	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3880	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4860	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1472	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3976	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3444	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4592	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1796	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1984	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	768	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3964	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3644	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4952	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4336	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4252	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4944	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3308	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1952	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4256	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2984	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4428	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2076	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3764	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4148	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3060	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4208	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	5084	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4608	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2168	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3524	5048	schtasks.exe	95
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4924	5048	schtasks.exe	95

DCRat payload 2 IoCs

Detects payload of DCRat, commonly dropped by NSIS installers.

rat

resource	yara_rule
behavioral2/files/0x0007000000023490-10.dat	dcrat
behavioral2/memory/4896-13-0x0000000000BC0000-0x0000000000CA8000-memory.dmp	dcrat

Checks computer location settings 2 TTPs 3 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-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	4b501fa87e3f05f21f0e85ed63f0deb4.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	WScript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	refCrt.exe

Executes dropped EXE 2 IoCs

pid	Process
4896	refCrt.exe
4004	lsass.exe

Looks up external IP address via web service 1 IoCs

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

flow	ioc
26	ip-api.com

Drops file in Program Files directory 11 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Common Files\Oracle\lsass.exe	refCrt.exe
File created	C:\Program Files (x86)\Common Files\Oracle\6203df4a6bafc7	refCrt.exe
File created	C:\Program Files\Mozilla Firefox\defaults\pref\RuntimeBroker.exe	refCrt.exe
File created	C:\Program Files\Mozilla Firefox\defaults\pref\9e8d7a4ca61bd9	refCrt.exe
File created	C:\Program Files\Windows Multimedia Platform\csrss.exe	refCrt.exe
File created	C:\Program Files\Microsoft Office 15\ClientX64\9e8d7a4ca61bd9	refCrt.exe
File created	C:\Program Files\Microsoft Office\Office16\Registry.exe	refCrt.exe
File created	C:\Program Files\Microsoft Office\Office16\ee2ad38f3d4382	refCrt.exe
File created	C:\Program Files\Windows Multimedia Platform\886983d96e3d3e	refCrt.exe
File created	C:\Program Files\Microsoft Office 15\ClientX64\RuntimeBroker.exe	refCrt.exe
File opened for modification	C:\Program Files\Microsoft Office 15\ClientX64\RuntimeBroker.exe	refCrt.exe

Drops file in Windows directory 9 IoCs

description	ioc	Process
File created	C:\Windows\PrintDialog\Assets\StartMenuExperienceHost.exe	refCrt.exe
File created	C:\Windows\WinSxS\backgroundTaskHost.exe	refCrt.exe
File created	C:\Windows\AppReadiness\TextInputHost.exe	refCrt.exe
File created	C:\Windows\AppReadiness\22eafd247d37c3	refCrt.exe
File created	C:\Windows\PrintDialog\Assets\55b276f4edf653	refCrt.exe
File created	C:\Windows\Migration\WTR\dwm.exe	refCrt.exe
File created	C:\Windows\Migration\WTR\6cb0b6c459d5d3	refCrt.exe
File created	C:\Windows\SoftwareDistribution\DataStore\Logs\spoolsv.exe	refCrt.exe
File created	C:\Windows\SoftwareDistribution\DataStore\Logs\f3b6ecef712a24	refCrt.exe

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 45 IoCs

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

persistence

Scheduled Task/Job

T1053

pid	Process
4860	schtasks.exe
3764	schtasks.exe
3524	schtasks.exe
3904	schtasks.exe
3324	schtasks.exe
4608	schtasks.exe
4336	schtasks.exe
4252	schtasks.exe
1640	schtasks.exe
1472	schtasks.exe
3444	schtasks.exe
4944	schtasks.exe
2984	schtasks.exe
3980	schtasks.exe
2780	schtasks.exe
4148	schtasks.exe
4208	schtasks.exe
2168	schtasks.exe
1388	schtasks.exe
3644	schtasks.exe
3016	schtasks.exe
3976	schtasks.exe
4952	schtasks.exe
3308	schtasks.exe
3060	schtasks.exe
3504	schtasks.exe
1072	schtasks.exe
4012	schtasks.exe
3880	schtasks.exe
4592	schtasks.exe
1984	schtasks.exe
2076	schtasks.exe
1616	schtasks.exe
4224	schtasks.exe
3964	schtasks.exe
4428	schtasks.exe
4924	schtasks.exe
3812	schtasks.exe
2264	schtasks.exe
768	schtasks.exe
1952	schtasks.exe
4256	schtasks.exe
5084	schtasks.exe
3284	schtasks.exe
1796	schtasks.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000_Classes\Local Settings	4b501fa87e3f05f21f0e85ed63f0deb4.exe
Key created	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000_Classes\Local Settings	refCrt.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
4896	refCrt.exe
4896	refCrt.exe
4896	refCrt.exe
4896	refCrt.exe
4896	refCrt.exe
4896	refCrt.exe
4896	refCrt.exe
4896	refCrt.exe
4896	refCrt.exe
4896	refCrt.exe
4896	refCrt.exe
4896	refCrt.exe
4896	refCrt.exe
4896	refCrt.exe
4896	refCrt.exe
4896	refCrt.exe
4896	refCrt.exe
4896	refCrt.exe
4896	refCrt.exe
4004	lsass.exe
4004	lsass.exe
4004	lsass.exe
4004	lsass.exe
4004	lsass.exe
4004	lsass.exe
4004	lsass.exe
4004	lsass.exe
4004	lsass.exe
4004	lsass.exe
4004	lsass.exe
4004	lsass.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4004	lsass.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4896	refCrt.exe
Token: SeDebugPrivilege	4004	lsass.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2984 wrote to memory of 428	2984	4b501fa87e3f05f21f0e85ed63f0deb4.exe	83
PID 2984 wrote to memory of 428	2984	4b501fa87e3f05f21f0e85ed63f0deb4.exe	83
PID 2984 wrote to memory of 428	2984	4b501fa87e3f05f21f0e85ed63f0deb4.exe	83
PID 428 wrote to memory of 1608	428	WScript.exe	93
PID 428 wrote to memory of 1608	428	WScript.exe	93
PID 428 wrote to memory of 1608	428	WScript.exe	93
PID 1608 wrote to memory of 4896	1608	cmd.exe	96
PID 1608 wrote to memory of 4896	1608	cmd.exe	96
PID 4896 wrote to memory of 4868	4896	refCrt.exe	142
PID 4896 wrote to memory of 4868	4896	refCrt.exe	142
PID 4868 wrote to memory of 640	4868	cmd.exe	144
PID 4868 wrote to memory of 640	4868	cmd.exe	144
PID 4868 wrote to memory of 4004	4868	cmd.exe	148
PID 4868 wrote to memory of 4004	4868	cmd.exe	148

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\4b501fa87e3f05f21f0e85ed63f0deb4.exe
"C:\Users\Admin\AppData\Local\Temp\4b501fa87e3f05f21f0e85ed63f0deb4.exe"
1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2984
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\blockBroker\dCDa6ALGfvXR9eU7o.vbe"
  2⤵
  - Checks computer location settings
  - Suspicious use of WriteProcessMemory
  PID:428
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\blockBroker\oXLzHTz.bat" "
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1608
  - - C:\Users\Admin\AppData\Local\Temp\blockBroker\refCrt.exe
      "C:\Users\Admin\AppData\Local\Temp\blockBroker\refCrt.exe"
      4⤵
      Checks computer location settings
      Executes dropped EXE
      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:4896
    - - C:\Windows\System32\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\DVGZ1ebnCh.bat"
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:4868
      - C:\Windows\system32\w32tm.exe
        
        w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
        6⤵
        
        PID:640
      - C:\Program Files (x86)\Common Files\Oracle\lsass.exe
        
        "C:\Program Files (x86)\Common Files\Oracle\lsass.exe"
        6⤵
        Executes dropped EXE
        Suspicious behavior: EnumeratesProcesses
        Suspicious behavior: GetForegroundWindowSpam
        Suspicious use of AdjustPrivilegeToken
        
        PID:4004

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 14 /tr "'C:\Program Files\Microsoft Office 15\ClientX64\RuntimeBroker.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1616

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Program Files\Microsoft Office 15\ClientX64\RuntimeBroker.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3812

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 12 /tr "'C:\Program Files\Microsoft Office 15\ClientX64\RuntimeBroker.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3980

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 5 /tr "'C:\Program Files\Microsoft Office\Office16\Registry.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4224

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "Registry" /sc ONLOGON /tr "'C:\Program Files\Microsoft Office\Office16\Registry.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2780

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 9 /tr "'C:\Program Files\Microsoft Office\Office16\Registry.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3284

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 10 /tr "'C:\Program Files (x86)\Common Files\Oracle\lsass.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1640

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsass" /sc ONLOGON /tr "'C:\Program Files (x86)\Common Files\Oracle\lsass.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3904

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 8 /tr "'C:\Program Files (x86)\Common Files\Oracle\lsass.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3324

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 7 /tr "'C:\Recovery\WindowsRE\WmiPrvSE.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3504

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "WmiPrvSE" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\WmiPrvSE.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1388

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 7 /tr "'C:\Recovery\WindowsRE\WmiPrvSE.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1072

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "TextInputHostT" /sc MINUTE /mo 5 /tr "'C:\Windows\AppReadiness\TextInputHost.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4012

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "TextInputHost" /sc ONLOGON /tr "'C:\Windows\AppReadiness\TextInputHost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3016

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "TextInputHostT" /sc MINUTE /mo 9 /tr "'C:\Windows\AppReadiness\TextInputHost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2264

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 6 /tr "'C:\Users\All Users\System.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3880

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\Users\All Users\System.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4860

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 14 /tr "'C:\Users\All Users\System.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1472

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 10 /tr "'C:\Program Files\Mozilla Firefox\defaults\pref\RuntimeBroker.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3976

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Program Files\Mozilla Firefox\defaults\pref\RuntimeBroker.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3444

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 10 /tr "'C:\Program Files\Mozilla Firefox\defaults\pref\RuntimeBroker.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4592

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 9 /tr "'C:\Program Files\Windows Multimedia Platform\csrss.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1796

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Program Files\Windows Multimedia Platform\csrss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1984

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 11 /tr "'C:\Program Files\Windows Multimedia Platform\csrss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:768

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "StartMenuExperienceHostS" /sc MINUTE /mo 5 /tr "'C:\Windows\PrintDialog\Assets\StartMenuExperienceHost.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3964

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "StartMenuExperienceHost" /sc ONLOGON /tr "'C:\Windows\PrintDialog\Assets\StartMenuExperienceHost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3644

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "StartMenuExperienceHostS" /sc MINUTE /mo 9 /tr "'C:\Windows\PrintDialog\Assets\StartMenuExperienceHost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4952

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 7 /tr "'C:\Users\All Users\WindowsHolographicDevices\OfficeClickToRun.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4336

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "OfficeClickToRun" /sc ONLOGON /tr "'C:\Users\All Users\WindowsHolographicDevices\OfficeClickToRun.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4252

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 7 /tr "'C:\Users\All Users\WindowsHolographicDevices\OfficeClickToRun.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4944

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "StartMenuExperienceHostS" /sc MINUTE /mo 5 /tr "'C:\Recovery\WindowsRE\StartMenuExperienceHost.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3308

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "StartMenuExperienceHost" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\StartMenuExperienceHost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1952

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "StartMenuExperienceHostS" /sc MINUTE /mo 10 /tr "'C:\Recovery\WindowsRE\StartMenuExperienceHost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4256

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 8 /tr "'C:\Recovery\WindowsRE\dllhost.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2984

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\dllhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4428

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 14 /tr "'C:\Recovery\WindowsRE\dllhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2076

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 12 /tr "'C:\Recovery\WindowsRE\wininit.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3764

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "wininit" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\wininit.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4148

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 12 /tr "'C:\Recovery\WindowsRE\wininit.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3060

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 6 /tr "'C:\Windows\Migration\WTR\dwm.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4208

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dwm" /sc ONLOGON /tr "'C:\Windows\Migration\WTR\dwm.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:5084

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 8 /tr "'C:\Windows\Migration\WTR\dwm.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4608

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 8 /tr "'C:\Windows\SoftwareDistribution\DataStore\Logs\spoolsv.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2168

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Windows\SoftwareDistribution\DataStore\Logs\spoolsv.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3524

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 11 /tr "'C:\Windows\SoftwareDistribution\DataStore\Logs\spoolsv.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4924

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

DVGZ1ebnCh.bat

Path C:\Users\Admin\AppData\Local\Temp\DVGZ1ebnCh.bat
Size 217B
SHA256 33b103531e2bfd4fd2b7169eec4ecd3dbd35afc5c1592dcd8bc00dd554c1c453
MD5 57ba347c02222fddc46f29e57068098a
SHA1 3bab57cbee92b4a88d386b085d51d60492f971e6
SHA512 aa5bfdde1bdf5320ff7a393b40b7bcc7ef48ad7f3106ed3b6b24eb02f270b79510e22e408aead558fb6efffd2b8a46a20b41d291c384b8d9dfe2a88e6bcb43a0
MD5 SHA1 SHA512

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dCDa6ALGfvXR9eU7o.vbe

Path C:\Users\Admin\AppData\Local\Temp\blockBroker\dCDa6ALGfvXR9eU7o.vbe
Size 199B
SHA256 7df61b5dc400e66c13e84a0fe0d0af679ed73cacc1e80877224f5dbf52594cc0
MD5 d82ab8a29099adb65e97dd5eb7bb9acc
SHA1 bff5f9f5d5793ca27e0f2f26fa437317209da5c9
SHA512 d953272aab88a6ef226b3316a8da7e145cc7bea23ca0f16e0f44dc41e6b5875ba19275234690c079572da89eb2524dbae0a87330ce33c1bd6966161e5ec5e7d1
MD5 SHA1 SHA512

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oXLzHTz.bat

Path C:\Users\Admin\AppData\Local\Temp\blockBroker\oXLzHTz.bat
Size 31B
SHA256 5d8b9079a09b672d42794c2948e409ee1a8a182e7cd591b3697af4ca51c73f16
MD5 f2a70d75ba065b27796739df5ed59503
SHA1 6761a00a1b4dfc1bdc8b38ebdc1031d4878d0863
SHA512 931994e6ecbd19d2e804d8b9bc6015ef7d031e99497b6a585c5aed967a07894fc615981bb504dd270711e71eae9a61eb6aed0faf914c18e569adc48e847f6d84
MD5 SHA1 SHA512

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refCrt.exe

Path C:\Users\Admin\AppData\Local\Temp\blockBroker\refCrt.exe
Size 901KB
SHA256 86e9ac84264ae29059d78e2a3ebedea8d3b6c1083d03b82bdab8e32d306fd8a9
MD5 4a8fd7bb970c86e0650a3e110fb5e6d0
SHA1 514e8249d87435de3b34bfd06e3dea9a6fb0fc96
SHA512 390a7e834dec74cbcc49efeee1adddb05bbe2e972e08a0ec5e6cfbecc92e4a864f6c33ce1a1d293acd42cc4f8f6ca89a8226820819170f8d86ff5e5d301e5910
SSDEEP 12288:ZRlDmSxJVEcVQ8KNIeyYzXIpv+KX5x3JfjaOCXzP8bGUwqHGrgc:zlDVLfVQ8KMYD/KXZfjaV8bGjqHGrF
MD5 SHA1 SHA512 SSDEEP

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memory/4896-12-0x00007FFBC0B83000-0x00007FFBC0B85000-memory.dmp

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memory/4896-13-0x0000000000BC0000-0x0000000000CA8000-memory.dmp

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memory/4896-14-0x0000000001480000-0x000000000148E000-memory.dmp

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memory/4896-15-0x0000000001490000-0x0000000001498000-memory.dmp

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