Overview
overview
10Static
static
103c7b097b31...0f.exe
windows7-x64
83c7b097b31...0f.exe
windows10-2004-x64
83c8a6c6cde...86.exe
windows7-x64
103c8a6c6cde...86.exe
windows10-2004-x64
103ca3e4676b...f1.exe
windows7-x64
103ca3e4676b...f1.exe
windows10-2004-x64
103cb47c4bbe...c1.exe
windows7-x64
103cb47c4bbe...c1.exe
windows10-2004-x64
103d18edb3bf...ff.exe
windows7-x64
13d18edb3bf...ff.exe
windows10-2004-x64
3d1ee6caf0...b4.exe
windows7-x64
103d1ee6caf0...b4.exe
windows10-2004-x64
103d2f05086d...0c.exe
windows7-x64
103d2f05086d...0c.exe
windows10-2004-x64
103d81f411b0...ba.exe
windows7-x64
103d81f411b0...ba.exe
windows10-2004-x64
103d90976d58...8c.exe
windows7-x64
103d90976d58...8c.exe
windows10-2004-x64
103d97ea72c5...9e.exe
windows7-x64
103d97ea72c5...9e.exe
windows10-2004-x64
103dd452b939...18.exe
windows7-x64
33dd452b939...18.exe
windows10-2004-x64
33dfc71cfc4...bd.exe
windows7-x64
103dfc71cfc4...bd.exe
windows10-2004-x64
103e435c9ff2...57.exe
windows7-x64
103e435c9ff2...57.exe
windows10-2004-x64
103e624f48a8...2b.exe
windows7-x64
13e624f48a8...2b.exe
windows10-2004-x64
43e8acfab95...cc.exe
windows7-x64
103e8acfab95...cc.exe
windows10-2004-x64
103e9a136b97...9d.exe
windows7-x64
103e9a136b97...9d.exe
windows10-2004-x64
10Analysis
-
max time kernel
121s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20250207-en -
resource tags
arch:x64arch:x86image:win7-20250207-enlocale:en-usos:windows7-x64system -
submitted
22/03/2025, 06:25
Behavioral task
behavioral1
Sample
3c7b097b31ed5df2ce6313dddd86da0f.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
3c7b097b31ed5df2ce6313dddd86da0f.exe
Resource
win10v2004-20250314-en
Behavioral task
behavioral3
Sample
3c8a6c6cde2240783bed48a2f3d849a30bfa841d7cb55177721631dcec1eb086.exe
Resource
win7-20240903-en
Behavioral task
behavioral4
Sample
3c8a6c6cde2240783bed48a2f3d849a30bfa841d7cb55177721631dcec1eb086.exe
Resource
win10v2004-20250314-en
Behavioral task
behavioral5
Sample
3ca3e4676bac76c4f7eaf0ab169b8af1.exe
Resource
win7-20240903-en
Behavioral task
behavioral6
Sample
3ca3e4676bac76c4f7eaf0ab169b8af1.exe
Resource
win10v2004-20250314-en
Behavioral task
behavioral7
Sample
3cb47c4bbe6856c45fd89eb5eb2723c1.exe
Resource
win7-20240903-en
Behavioral task
behavioral8
Sample
3cb47c4bbe6856c45fd89eb5eb2723c1.exe
Resource
win10v2004-20250314-en
Behavioral task
behavioral9
Sample
3d18edb3bf6b0493a6572edd73f937ff.exe
Resource
win7-20240729-en
Behavioral task
behavioral10
Sample
3d18edb3bf6b0493a6572edd73f937ff.exe
Resource
win10v2004-20250314-en
Behavioral task
behavioral11
Sample
3d1ee6caf0803c689aa17a8bada108bd515a77493a9d76dca7d55762bb6d33b4.exe
Resource
win7-20240903-en
Behavioral task
behavioral12
Sample
3d1ee6caf0803c689aa17a8bada108bd515a77493a9d76dca7d55762bb6d33b4.exe
Resource
win10v2004-20250314-en
Behavioral task
behavioral13
Sample
3d2f05086d9da9564c7c7e945875e80c.exe
Resource
win7-20241023-en
Behavioral task
behavioral14
Sample
3d2f05086d9da9564c7c7e945875e80c.exe
Resource
win10v2004-20250314-en
Behavioral task
behavioral15
Sample
3d81f411b0ec1ac7d861358e145db4ba.exe
Resource
win7-20250207-en
Behavioral task
behavioral16
Sample
3d81f411b0ec1ac7d861358e145db4ba.exe
Resource
win10v2004-20250314-en
Behavioral task
behavioral17
Sample
3d90976d58eb1346f68434f0575cec2ed017a5959384e7137600668ad7777d8c.exe
Resource
win7-20241023-en
Behavioral task
behavioral18
Sample
3d90976d58eb1346f68434f0575cec2ed017a5959384e7137600668ad7777d8c.exe
Resource
win10v2004-20250314-en
Behavioral task
behavioral19
Sample
3d97ea72c561c7d15574a99be582c59e.exe
Resource
win7-20241010-en
Behavioral task
behavioral20
Sample
3d97ea72c561c7d15574a99be582c59e.exe
Resource
win10v2004-20250314-en
Behavioral task
behavioral21
Sample
3dd452b9394976fd7b431d3dbae57d18.exe
Resource
win7-20240729-en
Behavioral task
behavioral22
Sample
3dd452b9394976fd7b431d3dbae57d18.exe
Resource
win10v2004-20250314-en
Behavioral task
behavioral23
Sample
3dfc71cfc45034d671ac0f319bc080bd.exe
Resource
win7-20241010-en
Behavioral task
behavioral24
Sample
3dfc71cfc45034d671ac0f319bc080bd.exe
Resource
win10v2004-20250314-en
Behavioral task
behavioral25
Sample
3e435c9ff25f6dca4a3e7262825aa557.exe
Resource
win7-20250207-en
Behavioral task
behavioral26
Sample
3e435c9ff25f6dca4a3e7262825aa557.exe
Resource
win10v2004-20250313-en
Behavioral task
behavioral27
Sample
3e624f48a849ad8a70e09f6d4e75f02b.exe
Resource
win7-20240903-en
Behavioral task
behavioral28
Sample
3e624f48a849ad8a70e09f6d4e75f02b.exe
Resource
win10v2004-20250314-en
Behavioral task
behavioral29
Sample
3e8acfab95493518077e0028fd0f2dcc.exe
Resource
win7-20240903-en
Behavioral task
behavioral30
Sample
3e8acfab95493518077e0028fd0f2dcc.exe
Resource
win10v2004-20250314-en
Behavioral task
behavioral31
Sample
3e9a136b97b7ad7104019ae696b4f59d.exe
Resource
win7-20241010-en
Behavioral task
behavioral32
Sample
3e9a136b97b7ad7104019ae696b4f59d.exe
Resource
win10v2004-20250314-en
General
-
Target
3e435c9ff25f6dca4a3e7262825aa557.exe
-
Size
984KB
-
MD5
3e435c9ff25f6dca4a3e7262825aa557
-
SHA1
57cb6e337e1c91c2937544fdfa78d3704d2ff408
-
SHA256
db97ef403b3433d2cae1fc98d893d14e67b83a14e7d8e4e428152fde8d83d934
-
SHA512
00c0863dc6728e01cddb5c605d1210c0d1c2b7bf7b4e2426f61bb2b6eb4addb102c7ef5d46db693557b3e8dcf4d68a33ddcfe499713666afd05d986b5be9ebe8
-
SSDEEP
12288:LzZvuvewk/0pPPXA5q/TQ9+n95vV25gnwHexSDwbwvDxlpaS98IUNldnd65EgF1s:LzZvuGD2PvA5YxwmbZB6Uv
Malware Config
Signatures
-
DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
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Dcrat family
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Process spawned unexpected child process 3 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 2196 2704 schtasks.exe 31 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2888 2704 schtasks.exe 31 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2164 2704 schtasks.exe 31 -
Executes dropped EXE 1 IoCs
pid Process 308 dwm.exe -
Adds Run key to start application 2 TTPs 3 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dwm = "\"C:\\Windows\\System32\\C_1361\\dwm.exe\"" 3e435c9ff25f6dca4a3e7262825aa557.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\OSPPSVC = "\"C:\\Program Files\\Common Files\\Microsoft Shared\\OfficeSoftwareProtectionPlatform\\OSPPWMI\\OSPPSVC.exe\"" 3e435c9ff25f6dca4a3e7262825aa557.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dllhost = "\"C:\\MSOCache\\All Users\\{90140000-0018-0409-0000-0000000FF1CE}-C\\dllhost.exe\"" 3e435c9ff25f6dca4a3e7262825aa557.exe -
Drops file in System32 directory 4 IoCs
description ioc Process File created C:\Windows\System32\C_1361\dwm.exe 3e435c9ff25f6dca4a3e7262825aa557.exe File opened for modification C:\Windows\System32\C_1361\dwm.exe 3e435c9ff25f6dca4a3e7262825aa557.exe File created C:\Windows\System32\C_1361\6cb0b6c459d5d3 3e435c9ff25f6dca4a3e7262825aa557.exe File opened for modification C:\Windows\System32\C_1361\RCXE7A2.tmp 3e435c9ff25f6dca4a3e7262825aa557.exe -
Drops file in Program Files directory 4 IoCs
description ioc Process File created C:\Program Files\Common Files\Microsoft Shared\OfficeSoftwareProtectionPlatform\OSPPWMI\OSPPSVC.exe 3e435c9ff25f6dca4a3e7262825aa557.exe File created C:\Program Files\Common Files\Microsoft Shared\OfficeSoftwareProtectionPlatform\OSPPWMI\1610b97d3ab4a7 3e435c9ff25f6dca4a3e7262825aa557.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\OfficeSoftwareProtectionPlatform\OSPPWMI\RCXE9A6.tmp 3e435c9ff25f6dca4a3e7262825aa557.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\OfficeSoftwareProtectionPlatform\OSPPWMI\OSPPSVC.exe 3e435c9ff25f6dca4a3e7262825aa557.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2196 schtasks.exe 2888 schtasks.exe 2164 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 2536 3e435c9ff25f6dca4a3e7262825aa557.exe 2536 3e435c9ff25f6dca4a3e7262825aa557.exe 2536 3e435c9ff25f6dca4a3e7262825aa557.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2536 3e435c9ff25f6dca4a3e7262825aa557.exe Token: SeDebugPrivilege 308 dwm.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2536 wrote to memory of 308 2536 3e435c9ff25f6dca4a3e7262825aa557.exe 35 PID 2536 wrote to memory of 308 2536 3e435c9ff25f6dca4a3e7262825aa557.exe 35 PID 2536 wrote to memory of 308 2536 3e435c9ff25f6dca4a3e7262825aa557.exe 35 -
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\3e435c9ff25f6dca4a3e7262825aa557.exe"C:\Users\Admin\AppData\Local\Temp\3e435c9ff25f6dca4a3e7262825aa557.exe"1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2536 -
C:\Windows\System32\C_1361\dwm.exe"C:\Windows\System32\C_1361\dwm.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:308
-
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "dwm" /sc ONLOGON /tr "'C:\Windows\System32\C_1361\dwm.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2196
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "OSPPSVC" /sc ONLOGON /tr "'C:\Program Files\Common Files\Microsoft Shared\OfficeSoftwareProtectionPlatform\OSPPWMI\OSPPSVC.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2888
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-0018-0409-0000-0000000FF1CE}-C\dllhost.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2164
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
984KB
MD53e435c9ff25f6dca4a3e7262825aa557
SHA157cb6e337e1c91c2937544fdfa78d3704d2ff408
SHA256db97ef403b3433d2cae1fc98d893d14e67b83a14e7d8e4e428152fde8d83d934
SHA51200c0863dc6728e01cddb5c605d1210c0d1c2b7bf7b4e2426f61bb2b6eb4addb102c7ef5d46db693557b3e8dcf4d68a33ddcfe499713666afd05d986b5be9ebe8