Analysis
- max time kernel
149s - max time network
139s - platform
windows10-2004_x64 - resource
win10v2004-20240730-en - resource tags
arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system - submitted
01/08/2024, 02:36
Behavioral task
behavioral1
Sample
5bd5977e894914a21a401042805fec1a.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
5bd5977e894914a21a401042805fec1a.exe
Resource
win10v2004-20240730-en
General
- Target 5bd5977e894914a21a401042805fec1a.exe
- Size 3.6MB
- Sample240801-c3kmtssbka
- SHA256 88f80fbe352e5778eb8a9d0cb508c888d8a3c88c676455c5a5dc6348f7a427b1
- MD5 5bd5977e894914a21a401042805fec1a
- SHA1 7ee7c4ce0d5aebd9e608b503791a5a6bc9b60224
- SHA512 20bfa21fe7f95d00e29528245c49f566484080c76a75ccf99160d81e4e2be5110daac728895f22f9e30c72954f0e0ce3eda8ae395d7c43a2801f083e1c262e56
- SSDEEP 49152:A+Eb3Z7VnqvDcc43W0O8FUyyc4CeHkmCTaZ3PO0ac3q+Jrp4LdoRO3RLAics/Gav:3S3BNqAJtbeHkmCTg4c3q+Jrp/I5Nv
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
- Process spawned unexpected child process 21 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 4924 3212 schtasks.exe 86 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4968 3212 schtasks.exe 86 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 3216 3212 schtasks.exe 86 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 1312 3212 schtasks.exe 86 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4892 3212 schtasks.exe 86 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 940 3212 schtasks.exe 86 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 556 3212 schtasks.exe 86 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2404 3212 schtasks.exe 86 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4564 3212 schtasks.exe 86 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 384 3212 schtasks.exe 86 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 1224 3212 schtasks.exe 86 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 1372 3212 schtasks.exe 86 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 3848 3212 schtasks.exe 86 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 3940 3212 schtasks.exe 86 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 872 3212 schtasks.exe 86 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 3428 3212 schtasks.exe 86 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 1944 3212 schtasks.exe 86 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 3108 3212 schtasks.exe 86 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2624 3212 schtasks.exe 86 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 3208 3212 schtasks.exe 86 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 1032 3212 schtasks.exe 86 -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" 5bd5977e894914a21a401042805fec1a.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" RuntimeBroker.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" RuntimeBroker.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" RuntimeBroker.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" RuntimeBroker.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0" RuntimeBroker.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" RuntimeBroker.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" 5bd5977e894914a21a401042805fec1a.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" RuntimeBroker.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0" RuntimeBroker.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" RuntimeBroker.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0" RuntimeBroker.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" RuntimeBroker.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0" RuntimeBroker.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0" RuntimeBroker.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" RuntimeBroker.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" RuntimeBroker.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0" RuntimeBroker.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" RuntimeBroker.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" RuntimeBroker.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0" 5bd5977e894914a21a401042805fec1a.exe -
resource yara_rule behavioral2/memory/4056-1-0x0000000000010000-0x00000000003BC000-memory.dmp dcrat behavioral2/files/0x00070000000233fa-31.dat dcrat - Checks computer location settings 2 TTPs 7 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-807826884-2440573969-3755798217-1000\Control Panel\International\Geo\Nation RuntimeBroker.exe Key value queried \REGISTRY\USER\S-1-5-21-807826884-2440573969-3755798217-1000\Control Panel\International\Geo\Nation RuntimeBroker.exe Key value queried \REGISTRY\USER\S-1-5-21-807826884-2440573969-3755798217-1000\Control Panel\International\Geo\Nation RuntimeBroker.exe Key value queried \REGISTRY\USER\S-1-5-21-807826884-2440573969-3755798217-1000\Control Panel\International\Geo\Nation 5bd5977e894914a21a401042805fec1a.exe Key value queried \REGISTRY\USER\S-1-5-21-807826884-2440573969-3755798217-1000\Control Panel\International\Geo\Nation RuntimeBroker.exe Key value queried \REGISTRY\USER\S-1-5-21-807826884-2440573969-3755798217-1000\Control Panel\International\Geo\Nation RuntimeBroker.exe Key value queried \REGISTRY\USER\S-1-5-21-807826884-2440573969-3755798217-1000\Control Panel\International\Geo\Nation RuntimeBroker.exe - Executes dropped EXE 6 IoCs
pid Process 2116 RuntimeBroker.exe 5024 RuntimeBroker.exe 4300 RuntimeBroker.exe 3504 RuntimeBroker.exe 3060 RuntimeBroker.exe 4904 RuntimeBroker.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA RuntimeBroker.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 5bd5977e894914a21a401042805fec1a.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" 5bd5977e894914a21a401042805fec1a.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" RuntimeBroker.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA RuntimeBroker.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" RuntimeBroker.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA RuntimeBroker.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" RuntimeBroker.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA RuntimeBroker.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA RuntimeBroker.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" RuntimeBroker.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" RuntimeBroker.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA RuntimeBroker.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" RuntimeBroker.exe - Drops file in Program Files directory 7 IoCs
description ioc Process File created C:\Program Files\Windows Multimedia Platform\9e8d7a4ca61bd9 5bd5977e894914a21a401042805fec1a.exe File created C:\Program Files\7-Zip\Lang\backgroundTaskHost.exe 5bd5977e894914a21a401042805fec1a.exe File created C:\Program Files\7-Zip\Lang\eddb19405b7ce1 5bd5977e894914a21a401042805fec1a.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Resource\Font\Registry.exe 5bd5977e894914a21a401042805fec1a.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Resource\Font\ee2ad38f3d4382 5bd5977e894914a21a401042805fec1a.exe File created C:\Program Files\Windows Multimedia Platform\RuntimeBroker.exe 5bd5977e894914a21a401042805fec1a.exe File opened for modification C:\Program Files\Windows Multimedia Platform\RuntimeBroker.exe 5bd5977e894914a21a401042805fec1a.exe - Drops file in Windows directory 4 IoCs
description ioc Process File created C:\Windows\PrintDialog\fontdrvhost.exe 5bd5977e894914a21a401042805fec1a.exe File created C:\Windows\PrintDialog\5b884080fd4f94 5bd5977e894914a21a401042805fec1a.exe File created C:\Windows\es-ES\OfficeClickToRun.exe 5bd5977e894914a21a401042805fec1a.exe File created C:\Windows\es-ES\e6c9b481da804f 5bd5977e894914a21a401042805fec1a.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Modifies registry class 7 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-807826884-2440573969-3755798217-1000_Classes\Local Settings RuntimeBroker.exe Key created \REGISTRY\USER\S-1-5-21-807826884-2440573969-3755798217-1000_Classes\Local Settings 5bd5977e894914a21a401042805fec1a.exe Key created \REGISTRY\USER\S-1-5-21-807826884-2440573969-3755798217-1000_Classes\Local Settings RuntimeBroker.exe Key created \REGISTRY\USER\S-1-5-21-807826884-2440573969-3755798217-1000_Classes\Local Settings RuntimeBroker.exe Key created \REGISTRY\USER\S-1-5-21-807826884-2440573969-3755798217-1000_Classes\Local Settings RuntimeBroker.exe Key created \REGISTRY\USER\S-1-5-21-807826884-2440573969-3755798217-1000_Classes\Local Settings RuntimeBroker.exe Key created \REGISTRY\USER\S-1-5-21-807826884-2440573969-3755798217-1000_Classes\Local Settings RuntimeBroker.exe - Scheduled Task/Job: Scheduled Task 1 TTPs 21 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4892 schtasks.exe 1372 schtasks.exe 3848 schtasks.exe 3940 schtasks.exe 1312 schtasks.exe 940 schtasks.exe 384 schtasks.exe 1224 schtasks.exe 1944 schtasks.exe 4968 schtasks.exe 3428 schtasks.exe 2624 schtasks.exe 4924 schtasks.exe 3216 schtasks.exe 556 schtasks.exe 2404 schtasks.exe 4564 schtasks.exe 872 schtasks.exe 3108 schtasks.exe 3208 schtasks.exe 1032 schtasks.exe - Suspicious behavior: EnumeratesProcesses 13 IoCs
pid Process 4056 5bd5977e894914a21a401042805fec1a.exe 4056 5bd5977e894914a21a401042805fec1a.exe 4056 5bd5977e894914a21a401042805fec1a.exe 4056 5bd5977e894914a21a401042805fec1a.exe 4056 5bd5977e894914a21a401042805fec1a.exe 4056 5bd5977e894914a21a401042805fec1a.exe 4056 5bd5977e894914a21a401042805fec1a.exe 2116 RuntimeBroker.exe 5024 RuntimeBroker.exe 4300 RuntimeBroker.exe 3504 RuntimeBroker.exe 3060 RuntimeBroker.exe 4904 RuntimeBroker.exe - Suspicious use of AdjustPrivilegeToken 7 IoCs
description pid Process Token: SeDebugPrivilege 4056 5bd5977e894914a21a401042805fec1a.exe Token: SeDebugPrivilege 2116 RuntimeBroker.exe Token: SeDebugPrivilege 5024 RuntimeBroker.exe Token: SeDebugPrivilege 4300 RuntimeBroker.exe Token: SeDebugPrivilege 3504 RuntimeBroker.exe Token: SeDebugPrivilege 3060 RuntimeBroker.exe Token: SeDebugPrivilege 4904 RuntimeBroker.exe - Suspicious use of WriteProcessMemory 40 IoCs
description pid Process procid_target PID 4056 wrote to memory of 4436 4056 5bd5977e894914a21a401042805fec1a.exe 108 PID 4056 wrote to memory of 4436 4056 5bd5977e894914a21a401042805fec1a.exe 108 PID 4436 wrote to memory of 3136 4436 cmd.exe 110 PID 4436 wrote to memory of 3136 4436 cmd.exe 110 PID 4436 wrote to memory of 2116 4436 cmd.exe 111 PID 4436 wrote to memory of 2116 4436 cmd.exe 111 PID 2116 wrote to memory of 1132 2116 RuntimeBroker.exe 112 PID 2116 wrote to memory of 1132 2116 RuntimeBroker.exe 112 PID 2116 wrote to memory of 1672 2116 RuntimeBroker.exe 113 PID 2116 wrote to memory of 1672 2116 RuntimeBroker.exe 113 PID 1132 wrote to memory of 5024 1132 WScript.exe 114 PID 1132 wrote to memory of 5024 1132 WScript.exe 114 PID 5024 wrote to memory of 3604 5024 RuntimeBroker.exe 115 PID 5024 wrote to memory of 3604 5024 RuntimeBroker.exe 115 PID 5024 wrote to memory of 1100 5024 RuntimeBroker.exe 116 PID 5024 wrote to memory of 1100 5024 RuntimeBroker.exe 116 PID 3604 wrote to memory of 4300 3604 WScript.exe 118 PID 3604 wrote to memory of 4300 3604 WScript.exe 118 PID 4300 wrote to memory of 4892 4300 RuntimeBroker.exe 120 PID 4300 wrote to memory of 4892 4300 RuntimeBroker.exe 120 PID 4300 wrote to memory of 4560 4300 RuntimeBroker.exe 121 PID 4300 wrote to memory of 4560 4300 RuntimeBroker.exe 121 PID 4892 wrote to memory of 3504 4892 WScript.exe 123 PID 4892 wrote to memory of 3504 4892 WScript.exe 123 PID 3504 wrote to memory of 4588 3504 RuntimeBroker.exe 124 PID 3504 wrote to memory of 4588 3504 RuntimeBroker.exe 124 PID 3504 wrote to memory of 4044 3504 RuntimeBroker.exe 125 PID 3504 wrote to memory of 4044 3504 RuntimeBroker.exe 125 PID 4588 wrote to memory of 3060 4588 WScript.exe 126 PID 4588 wrote to memory of 3060 4588 WScript.exe 126 PID 3060 wrote to memory of 3720 3060 RuntimeBroker.exe 127 PID 3060 wrote to memory of 3720 3060 RuntimeBroker.exe 127 PID 3060 wrote to memory of 4272 3060 RuntimeBroker.exe 128 PID 3060 wrote to memory of 4272 3060 RuntimeBroker.exe 128 PID 3720 wrote to memory of 4904 3720 WScript.exe 129 PID 3720 wrote to memory of 4904 3720 WScript.exe 129 PID 4904 wrote to memory of 3732 4904 RuntimeBroker.exe 130 PID 4904 wrote to memory of 3732 4904 RuntimeBroker.exe 130 PID 4904 wrote to memory of 4408 4904 RuntimeBroker.exe 131 PID 4904 wrote to memory of 4408 4904 RuntimeBroker.exe 131 - System policy modification 1 TTPs 21 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" RuntimeBroker.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" RuntimeBroker.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0" RuntimeBroker.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" RuntimeBroker.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0" RuntimeBroker.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0" RuntimeBroker.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" RuntimeBroker.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" 5bd5977e894914a21a401042805fec1a.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" 5bd5977e894914a21a401042805fec1a.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" RuntimeBroker.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" RuntimeBroker.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" RuntimeBroker.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0" RuntimeBroker.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" RuntimeBroker.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0" RuntimeBroker.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" RuntimeBroker.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0" RuntimeBroker.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0" 5bd5977e894914a21a401042805fec1a.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" RuntimeBroker.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" RuntimeBroker.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" RuntimeBroker.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.
Processes
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C:\Users\Admin\AppData\Local\Temp\5bd5977e894914a21a401042805fec1a.exe"C:\Users\Admin\AppData\Local\Temp\5bd5977e894914a21a401042805fec1a.exe"1⤵
- UAC bypass
- Checks computer location settings
- Checks whether UAC is enabled
- 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
- System policy modification
PID:4056 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\pThaEkwbyi.bat"2⤵
- Suspicious use of WriteProcessMemory
PID:4436 -
C:\Windows\system32\w32tm.exew32tm /stripchart /computer:localhost /period:5 /dataonly /samples:23⤵PID:3136
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C:\Program Files\Windows Multimedia Platform\RuntimeBroker.exe"C:\Program Files\Windows Multimedia Platform\RuntimeBroker.exe"3⤵
- UAC bypass
- Checks computer location settings
- Executes dropped EXE
- Checks whether UAC is enabled
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:2116 -
C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\bed638dd-82a8-4570-911e-01daa542e147.vbs"4⤵
- Suspicious use of WriteProcessMemory
PID:1132 -
C:\Program Files\Windows Multimedia Platform\RuntimeBroker.exe"C:\Program Files\Windows Multimedia Platform\RuntimeBroker.exe"5⤵
- UAC bypass
- Checks computer location settings
- Executes dropped EXE
- Checks whether UAC is enabled
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:5024 -
C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\5812943d-5a53-4dfd-864a-929651884e35.vbs"6⤵
- Suspicious use of WriteProcessMemory
PID:3604 -
C:\Program Files\Windows Multimedia Platform\RuntimeBroker.exe"C:\Program Files\Windows Multimedia Platform\RuntimeBroker.exe"7⤵
- UAC bypass
- Checks computer location settings
- Executes dropped EXE
- Checks whether UAC is enabled
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:4300 -
C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\547b7465-5087-437c-ba87-55f44b49a5cb.vbs"8⤵
- Suspicious use of WriteProcessMemory
PID:4892 -
C:\Program Files\Windows Multimedia Platform\RuntimeBroker.exe"C:\Program Files\Windows Multimedia Platform\RuntimeBroker.exe"9⤵
- UAC bypass
- Checks computer location settings
- Executes dropped EXE
- Checks whether UAC is enabled
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:3504 -
C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\a1d155ec-a6d1-402d-b038-6bccc9f4dc5f.vbs"10⤵
- Suspicious use of WriteProcessMemory
PID:4588 -
C:\Program Files\Windows Multimedia Platform\RuntimeBroker.exe"C:\Program Files\Windows Multimedia Platform\RuntimeBroker.exe"11⤵
- UAC bypass
- Checks computer location settings
- Executes dropped EXE
- Checks whether UAC is enabled
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:3060 -
C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\5d7f481e-c94a-460a-bdf7-c08c78005660.vbs"12⤵
- Suspicious use of WriteProcessMemory
PID:3720 -
C:\Program Files\Windows Multimedia Platform\RuntimeBroker.exe"C:\Program Files\Windows Multimedia Platform\RuntimeBroker.exe"13⤵
- UAC bypass
- Checks computer location settings
- Executes dropped EXE
- Checks whether UAC is enabled
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:4904 -
C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\f5641d3a-cc8b-46da-ad01-9c87775b2f78.vbs"14⤵PID:3732
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C:\Program Files\Windows Multimedia Platform\RuntimeBroker.exe"C:\Program Files\Windows Multimedia Platform\RuntimeBroker.exe"15⤵PID:3676
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C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\5b034f62-9ce9-46d4-8877-1ce1f666fdff.vbs"14⤵PID:4408
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C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\ba31ed11-9938-4345-a089-abe657834e56.vbs"12⤵PID:4272
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C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\b89b66ef-ba1b-45ee-92d0-ab5eb856aab3.vbs"10⤵PID:4044
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C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\29a22c75-c2f7-42bc-bbdb-1c772b5ba6fe.vbs"8⤵PID:4560
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C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\2058113e-44fb-4ad3-8986-43327165f9b5.vbs"6⤵PID:1100
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C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\43bb70ba-2f0e-42ad-8b1a-e83a6b809258.vbs"4⤵PID:1672
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 14 /tr "'C:\Program Files\Windows Multimedia Platform\RuntimeBroker.exe'" /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4924
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Program Files\Windows Multimedia Platform\RuntimeBroker.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4968
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 11 /tr "'C:\Program Files\Windows Multimedia Platform\RuntimeBroker.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3216
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 5 /tr "'C:\Windows\PrintDialog\fontdrvhost.exe'" /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1312
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\Windows\PrintDialog\fontdrvhost.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4892
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 13 /tr "'C:\Windows\PrintDialog\fontdrvhost.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:940
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "backgroundTaskHostb" /sc MINUTE /mo 14 /tr "'C:\Program Files\7-Zip\Lang\backgroundTaskHost.exe'" /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:556
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "backgroundTaskHost" /sc ONLOGON /tr "'C:\Program Files\7-Zip\Lang\backgroundTaskHost.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2404
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "backgroundTaskHostb" /sc MINUTE /mo 9 /tr "'C:\Program Files\7-Zip\Lang\backgroundTaskHost.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4564
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "upfcu" /sc MINUTE /mo 12 /tr "'C:\Recovery\WindowsRE\upfc.exe'" /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:384
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "upfc" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\upfc.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1224
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "upfcu" /sc MINUTE /mo 8 /tr "'C:\Recovery\WindowsRE\upfc.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1372
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 5 /tr "'C:\Program Files (x86)\Adobe\Acrobat Reader DC\Resource\Font\Registry.exe'" /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3848
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "Registry" /sc ONLOGON /tr "'C:\Program Files (x86)\Adobe\Acrobat Reader DC\Resource\Font\Registry.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3940
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 12 /tr "'C:\Program Files (x86)\Adobe\Acrobat Reader DC\Resource\Font\Registry.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:872
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 11 /tr "'C:\Windows\es-ES\OfficeClickToRun.exe'" /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3428
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "OfficeClickToRun" /sc ONLOGON /tr "'C:\Windows\es-ES\OfficeClickToRun.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1944
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 9 /tr "'C:\Windows\es-ES\OfficeClickToRun.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3108
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "IdleI" /sc MINUTE /mo 11 /tr "'C:\Recovery\WindowsRE\Idle.exe'" /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2624
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\Idle.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1032
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "IdleI" /sc MINUTE /mo 10 /tr "'C:\Recovery\WindowsRE\Idle.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3208
Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
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Downloads
- Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Resource\Font\Registry.exe
- Size 3.6MB
- SHA256 88f80fbe352e5778eb8a9d0cb508c888d8a3c88c676455c5a5dc6348f7a427b1
- MD5 5bd5977e894914a21a401042805fec1a
- SHA1 7ee7c4ce0d5aebd9e608b503791a5a6bc9b60224
- SHA512 20bfa21fe7f95d00e29528245c49f566484080c76a75ccf99160d81e4e2be5110daac728895f22f9e30c72954f0e0ce3eda8ae395d7c43a2801f083e1c262e56
- SSDEEP 49152:A+Eb3Z7VnqvDcc43W0O8FUyyc4CeHkmCTaZ3PO0ac3q+Jrp4LdoRO3RLAics/Gav:3S3BNqAJtbeHkmCTg4c3q+Jrp/I5Nv
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\RuntimeBroker.exe.log
- Size 1KB
- SHA256 2a5d403a2e649d8eceef8f785eeb0f6d33888ec6bbf251b3c347e34cb32b1e77
- MD5 49b64127208271d8f797256057d0b006
- SHA1 b99bd7e2b4e9ed24de47fb3341ea67660b84cca1
- SHA512 f7c728923c893dc9bc88ad2159e0abcda41e1b40ff7e7756e6252d135ed238a2248a2662b3392449836dd1b0b580f0c866cc33e409527484fe4602e3d3f10e3e
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\43bb70ba-2f0e-42ad-8b1a-e83a6b809258.vbs
- Size 514B
- SHA256 fbe1771bd8efbf9e23dac1df854a8f23a8eeab414c608a4d67a818289a5e29cc
- MD5 26a6ce64fe68d0ad367fd0f8993f0d86
- SHA1 8a673eb6952b929d3d49437184e0418116a043bf
- SHA512 7a581cb8a9ea21619b5bdeb5fac08b0ccbf61cdae20380b8befb6e1c6f473cc7e6f826822cde2abe5f6547b074b5524bea2594edaaba044e43ee021e8dc362fd
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\547b7465-5087-437c-ba87-55f44b49a5cb.vbs
- Size 738B
- SHA256 d47b42d0d05f09da35b60d2c371db4b41f88c5e270bcf509bd8c659e9d1a0784
- MD5 7c4ce92458ee74c5b6c13ee47d7f9fa5
- SHA1 10cac80229404bacd477d39fb3aaabc82f6453d1
- SHA512 c70c314e6fd9c306de5b586de05caa31da43443dca553cd03f0bb99609bcbd0a35e2393d214e3b59590682c5dedc0b59b94c18597a2e9f5d3fecb0369509cd88
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\5812943d-5a53-4dfd-864a-929651884e35.vbs
- Size 738B
- SHA256 cfa444075c69e02837e1d56f979a55d9c80b04eddd13d9262f895db75c3d6943
- MD5 2e92d7b9de8c5aa75f041b98e5049381
- SHA1 020485e7dcadf0b9e3affb7d3416805bc08a26f5
- SHA512 93a9dd47849a8a7cbca3a3b0f62105828a63701bfd96f966612757a3185d777546413dc84cbfe87ab36a57ad142da75331ccc788291c4c54f9c32f492386d3b2
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\5d7f481e-c94a-460a-bdf7-c08c78005660.vbs
- Size 738B
- SHA256 8bd11cb75058402d6270ea3d99b1e558138c3425484560a7672e4f822666779b
- MD5 a159b3888196b1d47d482a0e9fe5274c
- SHA1 ce4e145b3c8a5b3ee16b4edf79c1d2d481743405
- SHA512 005e68f7e2e8ed7da08958ba527a72690bd7ac79539b870b220363281b2208f3029f92b9181882262e11de7d5c7ce95740afba741b971d81a9384ae43d8578f7
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\a1d155ec-a6d1-402d-b038-6bccc9f4dc5f.vbs
- Size 738B
- SHA256 7617f1b3b6571e470935895cbcc60c6bd025f950b1f3f9919e168a1ef079877e
- MD5 a382acb7385d0c8fe97a117d363f49f1
- SHA1 b1409c14c3a6ba6fcf4dced69b0335f6ae0708fc
- SHA512 9159f33f9e03c08c0755f277746bf276d4a2112da07049535fdc22486f26d9e3d1cec4faa3b8105cecc35a9af7e9e6cd538bbffcb6d52b0c1c969bc63813fda9
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\bed638dd-82a8-4570-911e-01daa542e147.vbs
- Size 738B
- SHA256 2c65b704bf37f153f2135950bb8d46854b8f2921f3978f385aac32d344361db1
- MD5 dd1d2b5a215f0eb33706803ef8d34e24
- SHA1 08a41b1fd7174c4fc654e0a724562acd37e0ddf2
- SHA512 3ef83de84ae1778777a06e71c13b19194366158d6a64a6dd940d7ccb8a36a80dc495cf0c0f48503b918d5220dfb7d8b696a7d06c0ca423bd3eca32268eddfcbd
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\f5641d3a-cc8b-46da-ad01-9c87775b2f78.vbs
- Size 738B
- SHA256 6c399f5bc05e50cecf8be3c1b7e09a8c184cc6d4d6366ed2b7b90a0f62c5be4f
- MD5 b43689570b37930d799676dc60a109b3
- SHA1 0e969de876eb23d180edf40e981429789aea946a
- SHA512 271405ba305371a00489171efa23218ccb1314d10f77852aa2d05e01f00f9d59996809fa9d7262eb2677885957d25abbdb942a0cef5910e3cea193a02f9eb1c0
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\pThaEkwbyi.bat
- Size 227B
- SHA256 c435b7514b35c9d325326d8002a766ab5f52b3754289dfe2e44e66d7db826220
- MD5 2c53ecdca8d074f654ab117033654849
- SHA1 0ab51f4e4e4490741010e7911eddfcefe6998aa8
- SHA512 013c614b0d1340d0cc1163fdba0b832e4c1224a07963f64c4491c522aae4a872fd5d53f083cc37f136d66e06fb7e4693b3f5a205d122aee11e68532a3ae4e475
- MD5 SHA1 SHA512