Analysis
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max time kernel
148s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system -
submitted
26-07-2024 04:57
Behavioral task
behavioral1
Sample
a2defbcf2c896a3df3f3cdf612a6d2a82a7b40b82b3a4a561b775e67f11ef56d.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
a2defbcf2c896a3df3f3cdf612a6d2a82a7b40b82b3a4a561b775e67f11ef56d.exe
Resource
win10v2004-20240709-en
General
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Target
a2defbcf2c896a3df3f3cdf612a6d2a82a7b40b82b3a4a561b775e67f11ef56d.exe
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Size
866KB
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MD5
46d84050a5e6430175830f12e6c9580b
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SHA1
c461e610864e12f40e6c6ce1b6effc3e4dedca09
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SHA256
a2defbcf2c896a3df3f3cdf612a6d2a82a7b40b82b3a4a561b775e67f11ef56d
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SHA512
7b5b83d27778ae066bd400a8e09d95023339b8eed3a110a30bc44538b2a534ee4683139a9cf31b5fd3d5219cc1c6be0787604e9967a435e139c84a47cf3d0fff
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SSDEEP
12288:def6BEY7s9Z8ovT2RUUOKIiBAPIAIm61gCf9uSMnu54H6x:deq7s9Z2OK67E1gCluSTxx
Malware Config
Signatures
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DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
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Process spawned unexpected child process 21 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
schtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exedescription pid pid_target process target process Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2540 1696 schtasks.exe Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2900 1696 schtasks.exe Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2804 1696 schtasks.exe Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2844 1696 schtasks.exe Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2716 1696 schtasks.exe Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2164 1696 schtasks.exe Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2316 1696 schtasks.exe Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2868 1696 schtasks.exe Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2788 1696 schtasks.exe Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2744 1696 schtasks.exe Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2664 1696 schtasks.exe Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2604 1696 schtasks.exe Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2684 1696 schtasks.exe Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 1680 1696 schtasks.exe Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2240 1696 schtasks.exe Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2932 1696 schtasks.exe Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 764 1696 schtasks.exe Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 1104 1696 schtasks.exe Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2972 1696 schtasks.exe Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 1820 1696 schtasks.exe Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2912 1696 schtasks.exe -
Processes:
a2defbcf2c896a3df3f3cdf612a6d2a82a7b40b82b3a4a561b775e67f11ef56d.exesppsvc.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" a2defbcf2c896a3df3f3cdf612a6d2a82a7b40b82b3a4a561b775e67f11ef56d.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" a2defbcf2c896a3df3f3cdf612a6d2a82a7b40b82b3a4a561b775e67f11ef56d.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0" a2defbcf2c896a3df3f3cdf612a6d2a82a7b40b82b3a4a561b775e67f11ef56d.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" sppsvc.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" sppsvc.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0" sppsvc.exe -
Processes:
resource yara_rule behavioral1/memory/3060-1-0x0000000001210000-0x00000000012F0000-memory.dmp dcrat C:\Windows\PolicyDefinitions\en-US\wininit.exe dcrat behavioral1/memory/2968-24-0x0000000000130000-0x0000000000210000-memory.dmp dcrat -
Executes dropped EXE 1 IoCs
Processes:
sppsvc.exepid process 2968 sppsvc.exe -
Processes:
sppsvc.exea2defbcf2c896a3df3f3cdf612a6d2a82a7b40b82b3a4a561b775e67f11ef56d.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" sppsvc.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA a2defbcf2c896a3df3f3cdf612a6d2a82a7b40b82b3a4a561b775e67f11ef56d.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" a2defbcf2c896a3df3f3cdf612a6d2a82a7b40b82b3a4a561b775e67f11ef56d.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA sppsvc.exe -
Drops file in Program Files directory 2 IoCs
Processes:
a2defbcf2c896a3df3f3cdf612a6d2a82a7b40b82b3a4a561b775e67f11ef56d.exedescription ioc process File created C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\lsm.exe a2defbcf2c896a3df3f3cdf612a6d2a82a7b40b82b3a4a561b775e67f11ef56d.exe File created C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\101b941d020240 a2defbcf2c896a3df3f3cdf612a6d2a82a7b40b82b3a4a561b775e67f11ef56d.exe -
Drops file in Windows directory 2 IoCs
Processes:
a2defbcf2c896a3df3f3cdf612a6d2a82a7b40b82b3a4a561b775e67f11ef56d.exedescription ioc process File created C:\Windows\PolicyDefinitions\en-US\wininit.exe a2defbcf2c896a3df3f3cdf612a6d2a82a7b40b82b3a4a561b775e67f11ef56d.exe File created C:\Windows\PolicyDefinitions\en-US\56085415360792 a2defbcf2c896a3df3f3cdf612a6d2a82a7b40b82b3a4a561b775e67f11ef56d.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 21 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exeschtasks.exepid process 2716 schtasks.exe 2744 schtasks.exe 2664 schtasks.exe 2844 schtasks.exe 2868 schtasks.exe 2604 schtasks.exe 764 schtasks.exe 2972 schtasks.exe 1820 schtasks.exe 2900 schtasks.exe 2164 schtasks.exe 2316 schtasks.exe 2788 schtasks.exe 1680 schtasks.exe 2240 schtasks.exe 2912 schtasks.exe 2540 schtasks.exe 2804 schtasks.exe 2684 schtasks.exe 2932 schtasks.exe 1104 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 10 IoCs
Processes:
a2defbcf2c896a3df3f3cdf612a6d2a82a7b40b82b3a4a561b775e67f11ef56d.exesppsvc.exepid process 3060 a2defbcf2c896a3df3f3cdf612a6d2a82a7b40b82b3a4a561b775e67f11ef56d.exe 2968 sppsvc.exe 2968 sppsvc.exe 2968 sppsvc.exe 2968 sppsvc.exe 2968 sppsvc.exe 2968 sppsvc.exe 2968 sppsvc.exe 2968 sppsvc.exe 2968 sppsvc.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
sppsvc.exepid process 2968 sppsvc.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
a2defbcf2c896a3df3f3cdf612a6d2a82a7b40b82b3a4a561b775e67f11ef56d.exesppsvc.exedescription pid process Token: SeDebugPrivilege 3060 a2defbcf2c896a3df3f3cdf612a6d2a82a7b40b82b3a4a561b775e67f11ef56d.exe Token: SeDebugPrivilege 2968 sppsvc.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
a2defbcf2c896a3df3f3cdf612a6d2a82a7b40b82b3a4a561b775e67f11ef56d.exedescription pid process target process PID 3060 wrote to memory of 2968 3060 a2defbcf2c896a3df3f3cdf612a6d2a82a7b40b82b3a4a561b775e67f11ef56d.exe sppsvc.exe PID 3060 wrote to memory of 2968 3060 a2defbcf2c896a3df3f3cdf612a6d2a82a7b40b82b3a4a561b775e67f11ef56d.exe sppsvc.exe PID 3060 wrote to memory of 2968 3060 a2defbcf2c896a3df3f3cdf612a6d2a82a7b40b82b3a4a561b775e67f11ef56d.exe sppsvc.exe -
System policy modification 1 TTPs 6 IoCs
Processes:
a2defbcf2c896a3df3f3cdf612a6d2a82a7b40b82b3a4a561b775e67f11ef56d.exesppsvc.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" a2defbcf2c896a3df3f3cdf612a6d2a82a7b40b82b3a4a561b775e67f11ef56d.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" a2defbcf2c896a3df3f3cdf612a6d2a82a7b40b82b3a4a561b775e67f11ef56d.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0" a2defbcf2c896a3df3f3cdf612a6d2a82a7b40b82b3a4a561b775e67f11ef56d.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" sppsvc.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" sppsvc.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0" sppsvc.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\a2defbcf2c896a3df3f3cdf612a6d2a82a7b40b82b3a4a561b775e67f11ef56d.exe"C:\Users\Admin\AppData\Local\Temp\a2defbcf2c896a3df3f3cdf612a6d2a82a7b40b82b3a4a561b775e67f11ef56d.exe"1⤵
- UAC bypass
- 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:3060 -
C:\Users\All Users\Favorites\sppsvc.exe"C:\Users\All Users\Favorites\sppsvc.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:2968
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "explorere" /sc MINUTE /mo 10 /tr "'C:\MSOCache\All Users\{90140000-00BA-0409-0000-0000000FF1CE}-C\explorer.exe'" /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2540
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-00BA-0409-0000-0000000FF1CE}-C\explorer.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2900
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "explorere" /sc MINUTE /mo 10 /tr "'C:\MSOCache\All Users\{90140000-00BA-0409-0000-0000000FF1CE}-C\explorer.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2804
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "csrssc" /sc MINUTE /mo 9 /tr "'C:\Users\Admin\Local Settings\csrss.exe'" /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2844
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Users\Admin\Local Settings\csrss.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2716
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "csrssc" /sc MINUTE /mo 8 /tr "'C:\Users\Admin\Local Settings\csrss.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2164
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "OSPPSVCO" /sc MINUTE /mo 5 /tr "'C:\Users\Admin\Documents\My Videos\OSPPSVC.exe'" /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2316
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "OSPPSVC" /sc ONLOGON /tr "'C:\Users\Admin\Documents\My Videos\OSPPSVC.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2868
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "OSPPSVCO" /sc MINUTE /mo 6 /tr "'C:\Users\Admin\Documents\My Videos\OSPPSVC.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2788
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 8 /tr "'C:\Users\All Users\Favorites\sppsvc.exe'" /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2744
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Users\All Users\Favorites\sppsvc.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2664
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 12 /tr "'C:\Users\All Users\Favorites\sppsvc.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2604
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "wininitw" /sc MINUTE /mo 14 /tr "'C:\Windows\PolicyDefinitions\en-US\wininit.exe'" /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2684
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "wininit" /sc ONLOGON /tr "'C:\Windows\PolicyDefinitions\en-US\wininit.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1680
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "wininitw" /sc MINUTE /mo 12 /tr "'C:\Windows\PolicyDefinitions\en-US\wininit.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2240
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "lsml" /sc MINUTE /mo 11 /tr "'C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\lsm.exe'" /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2932
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "lsm" /sc ONLOGON /tr "'C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\lsm.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:764
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "lsml" /sc MINUTE /mo 10 /tr "'C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\lsm.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1104
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "taskhostt" /sc MINUTE /mo 10 /tr "'C:\Recovery\5ba42562-3a8b-11ef-9d17-d685e2345d05\taskhost.exe'" /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2972
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "taskhost" /sc ONLOGON /tr "'C:\Recovery\5ba42562-3a8b-11ef-9d17-d685e2345d05\taskhost.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1820
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "taskhostt" /sc MINUTE /mo 12 /tr "'C:\Recovery\5ba42562-3a8b-11ef-9d17-d685e2345d05\taskhost.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2912
Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
866KB
MD546d84050a5e6430175830f12e6c9580b
SHA1c461e610864e12f40e6c6ce1b6effc3e4dedca09
SHA256a2defbcf2c896a3df3f3cdf612a6d2a82a7b40b82b3a4a561b775e67f11ef56d
SHA5127b5b83d27778ae066bd400a8e09d95023339b8eed3a110a30bc44538b2a534ee4683139a9cf31b5fd3d5219cc1c6be0787604e9967a435e139c84a47cf3d0fff