dcrat | db831bd29c0acfbc69b882388d8b074081b8008dfdba99f8e04eb54374d06cd5

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
19/05/2024, 16:41

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General

Target
3fb209d74252ea949ad3952762374292.exe
Size 1.3MB
Sample240519-t6321sfh24
SHA256 db831bd29c0acfbc69b882388d8b074081b8008dfdba99f8e04eb54374d06cd5
MD5 3fb209d74252ea949ad3952762374292
SHA1 e792a5d7fb37073160a9a47e98c97c4cdcc101c1
SHA512 b7504632f6faf5b04f36b59dd27549a3ece8a5d817d2781c6824cd6e00778d329b61bf61c21bb5cb65bb3058b24c81074665052e3ea9a15f9a7846437df755ff
SSDEEP 24576:OO1bN+/W/YyGo7t1SNhoxVX88Nk8Z8XAV4CBk/9WrvFm8lWgQBVxz:O7WMoJ57kk8w+HwjFm8W/D
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

dcrat evasion infostealer rat trojan

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 51 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	2828	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4632	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2604	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1972	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4392	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3956	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	760	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4424	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3808	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4428	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3584	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4520	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2128	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1000	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1068	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1104	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3860	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2188	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3280	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	440	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3880	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3396	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3560	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2040	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	5112	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3724	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1324	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	5020	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1572	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4052	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3248	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3644	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3204	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4068	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3504	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	5004	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1548	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4864	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2064	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4568	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4456	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3704	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4712	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2668	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4624	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1532	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4064	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4196	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2808	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2632	3624	schtasks.exe	81
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1872	3624	schtasks.exe	81

UAC bypass 3 TTPs 6 IoCs

evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	unsecapp.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	unsecapp.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	3fb209d74252ea949ad3952762374292.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	3fb209d74252ea949ad3952762374292.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	3fb209d74252ea949ad3952762374292.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	unsecapp.exe

DCRat payload 2 IoCs

Detects payload of DCRat, commonly dropped by NSIS installers.

rat

resource	yara_rule
behavioral2/memory/4480-1-0x0000000000360000-0x00000000004C0000-memory.dmp	dcrat
behavioral2/files/0x00070000000233d9-19.dat	dcrat

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-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	3fb209d74252ea949ad3952762374292.exe

Executes dropped EXE 1 IoCs

pid	Process
4880	unsecapp.exe

Checks whether UAC is enabled 1 TTPs 4 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	3fb209d74252ea949ad3952762374292.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	3fb209d74252ea949ad3952762374292.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	unsecapp.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	unsecapp.exe

Drops file in Program Files directory 11 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Windows Defender\es-ES\e1ef82546f0b02	3fb209d74252ea949ad3952762374292.exe
File created	C:\Program Files\Google\Chrome\Application\110.0.5481.104\6ccacd8608530f	3fb209d74252ea949ad3952762374292.exe
File created	C:\Program Files (x86)\Microsoft\RuntimeBroker.exe	3fb209d74252ea949ad3952762374292.exe
File created	C:\Program Files (x86)\Microsoft\9e8d7a4ca61bd9	3fb209d74252ea949ad3952762374292.exe
File created	C:\Program Files\Common Files\explorer.exe	3fb209d74252ea949ad3952762374292.exe
File created	C:\Program Files\Windows Photo Viewer\3fb209d74252ea949ad3952762374292.exe	3fb209d74252ea949ad3952762374292.exe
File created	C:\Program Files\Windows Photo Viewer\06048b6f85a460	3fb209d74252ea949ad3952762374292.exe
File created	C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_4.4.8204.0_neutral_split.scale-200_8wekyb3d8bbwe\Win10\OfficeClickToRun.exe	3fb209d74252ea949ad3952762374292.exe
File created	C:\Program Files\Google\Chrome\Application\110.0.5481.104\Idle.exe	3fb209d74252ea949ad3952762374292.exe
File created	C:\Program Files\Common Files\7a0fd90576e088	3fb209d74252ea949ad3952762374292.exe
File created	C:\Program Files (x86)\Windows Defender\es-ES\SppExtComObj.exe	3fb209d74252ea949ad3952762374292.exe

Drops file in Windows directory 7 IoCs

description	ioc	Process
File created	C:\Windows\SoftwareDistribution\SLS\9482F4B4-E343-43B6-B170-9A65BC822C77\lsass.exe	3fb209d74252ea949ad3952762374292.exe
File created	C:\Windows\SoftwareDistribution\SLS\9482F4B4-E343-43B6-B170-9A65BC822C77\6203df4a6bafc7	3fb209d74252ea949ad3952762374292.exe
File created	C:\Windows\bcastdvr\upfc.exe	3fb209d74252ea949ad3952762374292.exe
File created	C:\Windows\bcastdvr\ea1d8f6d871115	3fb209d74252ea949ad3952762374292.exe
File created	C:\Windows\ServiceState\SearchApp.exe	3fb209d74252ea949ad3952762374292.exe
File created	C:\Windows\Provisioning\Packages\winlogon.exe	3fb209d74252ea949ad3952762374292.exe
File created	C:\Windows\Provisioning\Packages\cc11b995f2a76d	3fb209d74252ea949ad3952762374292.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 51 IoCs

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

persistence

Scheduled Task/Job

T1053

pid	Process
4428	schtasks.exe
3808	schtasks.exe
4712	schtasks.exe
1532	schtasks.exe
5004	schtasks.exe
3280	schtasks.exe
3704	schtasks.exe
2668	schtasks.exe
2808	schtasks.exe
4520	schtasks.exe
4052	schtasks.exe
1548	schtasks.exe
3956	schtasks.exe
440	schtasks.exe
1324	schtasks.exe
4632	schtasks.exe
1104	schtasks.exe
2188	schtasks.exe
3204	schtasks.exe
1000	schtasks.exe
3860	schtasks.exe
5020	schtasks.exe
2604	schtasks.exe
4624	schtasks.exe
3248	schtasks.exe
4196	schtasks.exe
4392	schtasks.exe
3724	schtasks.exe
4064	schtasks.exe
2828	schtasks.exe
3396	schtasks.exe
3560	schtasks.exe
4568	schtasks.exe
2632	schtasks.exe
1872	schtasks.exe
3880	schtasks.exe
3584	schtasks.exe
1068	schtasks.exe
760	schtasks.exe
2128	schtasks.exe
1572	schtasks.exe
4068	schtasks.exe
3644	schtasks.exe
4864	schtasks.exe
4456	schtasks.exe
1972	schtasks.exe
4424	schtasks.exe
2040	schtasks.exe
5112	schtasks.exe
3504	schtasks.exe
2064	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4480	3fb209d74252ea949ad3952762374292.exe
4480	3fb209d74252ea949ad3952762374292.exe
4480	3fb209d74252ea949ad3952762374292.exe
4480	3fb209d74252ea949ad3952762374292.exe
4480	3fb209d74252ea949ad3952762374292.exe
4480	3fb209d74252ea949ad3952762374292.exe
4480	3fb209d74252ea949ad3952762374292.exe
4480	3fb209d74252ea949ad3952762374292.exe
4480	3fb209d74252ea949ad3952762374292.exe
4480	3fb209d74252ea949ad3952762374292.exe
4480	3fb209d74252ea949ad3952762374292.exe
4480	3fb209d74252ea949ad3952762374292.exe
4480	3fb209d74252ea949ad3952762374292.exe
4480	3fb209d74252ea949ad3952762374292.exe
4480	3fb209d74252ea949ad3952762374292.exe
4480	3fb209d74252ea949ad3952762374292.exe
4480	3fb209d74252ea949ad3952762374292.exe
4480	3fb209d74252ea949ad3952762374292.exe
4480	3fb209d74252ea949ad3952762374292.exe
4480	3fb209d74252ea949ad3952762374292.exe
4480	3fb209d74252ea949ad3952762374292.exe
4480	3fb209d74252ea949ad3952762374292.exe
4480	3fb209d74252ea949ad3952762374292.exe
4480	3fb209d74252ea949ad3952762374292.exe
4480	3fb209d74252ea949ad3952762374292.exe
4480	3fb209d74252ea949ad3952762374292.exe
4480	3fb209d74252ea949ad3952762374292.exe
4480	3fb209d74252ea949ad3952762374292.exe
4480	3fb209d74252ea949ad3952762374292.exe
4480	3fb209d74252ea949ad3952762374292.exe
4480	3fb209d74252ea949ad3952762374292.exe
4880	unsecapp.exe
4880	unsecapp.exe
4880	unsecapp.exe
4880	unsecapp.exe
4880	unsecapp.exe
4880	unsecapp.exe
4880	unsecapp.exe
4880	unsecapp.exe
4880	unsecapp.exe
4880	unsecapp.exe
4880	unsecapp.exe
4880	unsecapp.exe
4880	unsecapp.exe
4880	unsecapp.exe
4880	unsecapp.exe
4880	unsecapp.exe
4880	unsecapp.exe
4880	unsecapp.exe
4880	unsecapp.exe
4880	unsecapp.exe
4880	unsecapp.exe
4880	unsecapp.exe
4880	unsecapp.exe
4880	unsecapp.exe
4880	unsecapp.exe
4880	unsecapp.exe
4880	unsecapp.exe
4880	unsecapp.exe
4880	unsecapp.exe
4880	unsecapp.exe
4880	unsecapp.exe
4880	unsecapp.exe
4880	unsecapp.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4880	unsecapp.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4480	3fb209d74252ea949ad3952762374292.exe
Token: SeDebugPrivilege	4880	unsecapp.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4480 wrote to memory of 4880	4480	3fb209d74252ea949ad3952762374292.exe	133
PID 4480 wrote to memory of 4880	4480	3fb209d74252ea949ad3952762374292.exe	133

System policy modification 1 TTPs 6 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	3fb209d74252ea949ad3952762374292.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	3fb209d74252ea949ad3952762374292.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	unsecapp.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	unsecapp.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	unsecapp.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	3fb209d74252ea949ad3952762374292.exe

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\3fb209d74252ea949ad3952762374292.exe
"C:\Users\Admin\AppData\Local\Temp\3fb209d74252ea949ad3952762374292.exe"
1⤵
- UAC bypass
- Checks computer location settings
- Checks whether UAC is enabled
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:4480
- C:\Recovery\WindowsRE\unsecapp.exe
  "C:\Recovery\WindowsRE\unsecapp.exe"
  2⤵
  - UAC bypass
  - Executes dropped EXE
  - Checks whether UAC is enabled
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - System policy modification
  PID:4880

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "upfcu" /sc MINUTE /mo 14 /tr "'C:\Recovery\WindowsRE\upfc.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2828

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "upfc" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\upfc.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4632

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "upfcu" /sc MINUTE /mo 10 /tr "'C:\Recovery\WindowsRE\upfc.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2604

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 12 /tr "'C:\Users\Public\csrss.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1972

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Users\Public\csrss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4392

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 10 /tr "'C:\Users\Public\csrss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3956

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 10 /tr "'C:\Windows\SoftwareDistribution\SLS\9482F4B4-E343-43B6-B170-9A65BC822C77\lsass.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:760

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsass" /sc ONLOGON /tr "'C:\Windows\SoftwareDistribution\SLS\9482F4B4-E343-43B6-B170-9A65BC822C77\lsass.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4424

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 10 /tr "'C:\Windows\SoftwareDistribution\SLS\9482F4B4-E343-43B6-B170-9A65BC822C77\lsass.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3808

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 13 /tr "'C:\Users\Default\Start Menu\csrss.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4428

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Users\Default\Start Menu\csrss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3584

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 8 /tr "'C:\Users\Default\Start Menu\csrss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4520

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "upfcu" /sc MINUTE /mo 8 /tr "'C:\Windows\bcastdvr\upfc.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2128

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "upfc" /sc ONLOGON /tr "'C:\Windows\bcastdvr\upfc.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1000

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "upfcu" /sc MINUTE /mo 5 /tr "'C:\Windows\bcastdvr\upfc.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1068

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 6 /tr "'C:\Recovery\WindowsRE\csrss.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1104

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\csrss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3860

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 11 /tr "'C:\Recovery\WindowsRE\csrss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2188

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "taskhostwt" /sc MINUTE /mo 13 /tr "'C:\Recovery\WindowsRE\taskhostw.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3280

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "taskhostw" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\taskhostw.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:440

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "taskhostwt" /sc MINUTE /mo 10 /tr "'C:\Recovery\WindowsRE\taskhostw.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3880

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 13 /tr "'C:\Program Files\Google\Chrome\Application\110.0.5481.104\Idle.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3396

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\Program Files\Google\Chrome\Application\110.0.5481.104\Idle.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3560

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 14 /tr "'C:\Program Files\Google\Chrome\Application\110.0.5481.104\Idle.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2040

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 14 /tr "'C:\Windows\Provisioning\Packages\winlogon.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:5112

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "winlogon" /sc ONLOGON /tr "'C:\Windows\Provisioning\Packages\winlogon.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3724

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 12 /tr "'C:\Windows\Provisioning\Packages\winlogon.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1324

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 9 /tr "'C:\Users\Public\Pictures\dwm.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:5020

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dwm" /sc ONLOGON /tr "'C:\Users\Public\Pictures\dwm.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1572

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 14 /tr "'C:\Users\Public\Pictures\dwm.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4052

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 12 /tr "'C:\Users\Public\Pictures\winlogon.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3248

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "winlogon" /sc ONLOGON /tr "'C:\Users\Public\Pictures\winlogon.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 "winlogonw" /sc MINUTE /mo 7 /tr "'C:\Users\Public\Pictures\winlogon.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3204

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\Microsoft\RuntimeBroker.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4068

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft\RuntimeBroker.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3504

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\Microsoft\RuntimeBroker.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:5004

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "unsecappu" /sc MINUTE /mo 12 /tr "'C:\Recovery\WindowsRE\unsecapp.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1548

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "unsecapp" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\unsecapp.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4864

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "unsecappu" /sc MINUTE /mo 5 /tr "'C:\Recovery\WindowsRE\unsecapp.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2064

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "backgroundTaskHostb" /sc MINUTE /mo 6 /tr "'C:\Users\Default\Cookies\backgroundTaskHost.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4568

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "backgroundTaskHost" /sc ONLOGON /tr "'C:\Users\Default\Cookies\backgroundTaskHost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4456

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "backgroundTaskHostb" /sc MINUTE /mo 10 /tr "'C:\Users\Default\Cookies\backgroundTaskHost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:3704

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "explorere" /sc MINUTE /mo 5 /tr "'C:\Program Files\Common Files\explorer.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4712

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Program Files\Common Files\explorer.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2668

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "explorere" /sc MINUTE /mo 12 /tr "'C:\Program Files\Common Files\explorer.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4624

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SppExtComObjS" /sc MINUTE /mo 8 /tr "'C:\Program Files (x86)\Windows Defender\es-ES\SppExtComObj.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1532

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SppExtComObj" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Defender\es-ES\SppExtComObj.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4064

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SppExtComObjS" /sc MINUTE /mo 9 /tr "'C:\Program Files (x86)\Windows Defender\es-ES\SppExtComObj.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:4196

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "3fb209d74252ea949ad39527623742923" /sc MINUTE /mo 10 /tr "'C:\Program Files\Windows Photo Viewer\3fb209d74252ea949ad3952762374292.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2808

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "3fb209d74252ea949ad3952762374292" /sc ONLOGON /tr "'C:\Program Files\Windows Photo Viewer\3fb209d74252ea949ad3952762374292.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2632

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "3fb209d74252ea949ad39527623742923" /sc MINUTE /mo 14 /tr "'C:\Program Files\Windows Photo Viewer\3fb209d74252ea949ad3952762374292.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1872

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Scheduled Task/Job

T1053

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

upfc.exe

Path C:\Windows\bcastdvr\upfc.exe
Size 1.3MB
SHA256 db831bd29c0acfbc69b882388d8b074081b8008dfdba99f8e04eb54374d06cd5
MD5 3fb209d74252ea949ad3952762374292
SHA1 e792a5d7fb37073160a9a47e98c97c4cdcc101c1
SHA512 b7504632f6faf5b04f36b59dd27549a3ece8a5d817d2781c6824cd6e00778d329b61bf61c21bb5cb65bb3058b24c81074665052e3ea9a15f9a7846437df755ff
SSDEEP 24576:OO1bN+/W/YyGo7t1SNhoxVX88Nk8Z8XAV4CBk/9WrvFm8lWgQBVxz:O7WMoJ57kk8w+HwjFm8W/D
MD5 SHA1 SHA512 SSDEEP

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memory/4480-4-0x00000000026A0000-0x00000000026F0000-memory.dmp

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memory/4480-2-0x00007FFB83F30000-0x00007FFB849F1000-memory.dmp

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memory/4480-3-0x00000000025E0000-0x00000000025FC000-memory.dmp

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memory/4480-5-0x0000000002600000-0x0000000002616000-memory.dmp

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memory/4480-6-0x0000000000CD0000-0x0000000000CDA000-memory.dmp

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memory/4480-0-0x00007FFB83F33000-0x00007FFB83F35000-memory.dmp

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memory/4480-7-0x0000000002620000-0x000000000262C000-memory.dmp

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memory/4480-8-0x0000000002630000-0x000000000263C000-memory.dmp

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memory/4480-9-0x0000000002650000-0x000000000265C000-memory.dmp

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memory/4480-10-0x0000000002690000-0x000000000269C000-memory.dmp

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memory/4480-1-0x0000000000360000-0x00000000004C0000-memory.dmp

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memory/4480-56-0x00007FFB83F30000-0x00007FFB849F1000-memory.dmp

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