Analysis Overview
SHA256
f413c35eca818b528e5a0e5aa6c8fdd46f9e1e40d379feb3a70b58310c6c514a
Threat Level: Known bad
The file DCRatBuild.exe was found to be: Known bad.
Malicious Activity Summary
Process spawned unexpected child process
DcRat
Dcrat family
DCRat payload
DCRat payload
Executes dropped EXE
Checks computer location settings
Loads dropped DLL
Drops file in Windows directory
Drops file in Program Files directory
Unsigned PE
Enumerates physical storage devices
Uses Task Scheduler COM API
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of WriteProcessMemory
Scheduled Task/Job: Scheduled Task
Modifies registry class
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-18 14:18
Signatures
DCRat payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Dcrat family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-18 14:18
Reported
2024-06-18 14:21
Platform
win7-20231129-en
Max time kernel
148s
Max time network
148s
Command Line
Signatures
DcRat
Process spawned unexpected child process
| Description | Indicator | Process | Target |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe |
DCRat payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Surrogatesession\containerwebDll.exe | N/A |
| N/A | N/A | C:\Surrogatesession\containerwebDll.exe | N/A |
| N/A | N/A | C:\Surrogatesession\dwm.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files (x86)\Microsoft Synchronization Services\ADO.NET\v1.0\audiodg.exe | C:\Surrogatesession\containerwebDll.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Microsoft Synchronization Services\ADO.NET\v1.0\audiodg.exe | C:\Surrogatesession\containerwebDll.exe | N/A |
| File created | C:\Program Files (x86)\Microsoft Synchronization Services\ADO.NET\v1.0\42af1c969fbb7b | C:\Surrogatesession\containerwebDll.exe | N/A |
| File created | C:\Program Files\Windows Photo Viewer\de-DE\explorer.exe | C:\Surrogatesession\containerwebDll.exe | N/A |
| File created | C:\Program Files\Windows Photo Viewer\de-DE\7a0fd90576e088 | C:\Surrogatesession\containerwebDll.exe | N/A |
| File created | C:\Program Files (x86)\Windows Mail\ja-JP\Idle.exe | C:\Surrogatesession\containerwebDll.exe | N/A |
| File created | C:\Program Files (x86)\Windows Mail\ja-JP\6ccacd8608530f | C:\Surrogatesession\containerwebDll.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\Resources\Themes\Aero\fr-FR\sppsvc.exe | C:\Surrogatesession\containerwebDll.exe | N/A |
| File created | C:\Windows\Resources\Themes\Aero\fr-FR\0a1fd5f707cd16 | C:\Surrogatesession\containerwebDll.exe | N/A |
| File created | C:\Windows\Fonts\WmiPrvSE.exe | C:\Surrogatesession\containerwebDll.exe | N/A |
| File created | C:\Windows\Fonts\24dbde2999530e | C:\Surrogatesession\containerwebDll.exe | N/A |
Enumerates physical storage devices
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Surrogatesession\containerwebDll.exe | N/A |
| N/A | N/A | C:\Surrogatesession\containerwebDll.exe | N/A |
| N/A | N/A | C:\Surrogatesession\dwm.exe | N/A |
| N/A | N/A | C:\Surrogatesession\dwm.exe | N/A |
| N/A | N/A | C:\Surrogatesession\dwm.exe | N/A |
| N/A | N/A | C:\Surrogatesession\dwm.exe | N/A |
| N/A | N/A | C:\Surrogatesession\dwm.exe | N/A |
| N/A | N/A | C:\Surrogatesession\dwm.exe | N/A |
| N/A | N/A | C:\Surrogatesession\dwm.exe | N/A |
| N/A | N/A | C:\Surrogatesession\dwm.exe | N/A |
| N/A | N/A | C:\Surrogatesession\dwm.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Surrogatesession\dwm.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Surrogatesession\containerwebDll.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Surrogatesession\containerwebDll.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Surrogatesession\dwm.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\DCRatBuild.exe
"C:\Users\Admin\AppData\Local\Temp\DCRatBuild.exe"
C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Surrogatesession\1xwZLMSuNR5Dt6umDBBaTv.vbe"
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Surrogatesession\N4Uo34sDWZJRkkmTLgJx4Vp3o.bat" "
C:\Surrogatesession\containerwebDll.exe
"C:\Surrogatesession\containerwebDll.exe"
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "audiodga" /sc MINUTE /mo 8 /tr "'C:\Program Files (x86)\Microsoft Synchronization Services\ADO.NET\v1.0\audiodg.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "audiodg" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft Synchronization Services\ADO.NET\v1.0\audiodg.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "audiodga" /sc MINUTE /mo 8 /tr "'C:\Program Files (x86)\Microsoft Synchronization Services\ADO.NET\v1.0\audiodg.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "taskhostt" /sc MINUTE /mo 12 /tr "'C:\Users\All Users\Desktop\taskhost.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "taskhost" /sc ONLOGON /tr "'C:\Users\All Users\Desktop\taskhost.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "taskhostt" /sc MINUTE /mo 6 /tr "'C:\Users\All Users\Desktop\taskhost.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 8 /tr "'C:\Windows\Resources\Themes\Aero\fr-FR\sppsvc.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Windows\Resources\Themes\Aero\fr-FR\sppsvc.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 13 /tr "'C:\Windows\Resources\Themes\Aero\fr-FR\sppsvc.exe'" /rl HIGHEST /f
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\lJjcBPjH5n.bat"
C:\Windows\system32\w32tm.exe
w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
C:\Surrogatesession\containerwebDll.exe
"C:\Surrogatesession\containerwebDll.exe"
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 6 /tr "'C:\Recovery\d6b272a2-8f1b-11ee-9e28-7ed9061e9c39\sppsvc.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Recovery\d6b272a2-8f1b-11ee-9e28-7ed9061e9c39\sppsvc.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 13 /tr "'C:\Recovery\d6b272a2-8f1b-11ee-9e28-7ed9061e9c39\sppsvc.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 8 /tr "'C:\Recovery\d6b272a2-8f1b-11ee-9e28-7ed9061e9c39\sppsvc.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Recovery\d6b272a2-8f1b-11ee-9e28-7ed9061e9c39\sppsvc.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 10 /tr "'C:\Recovery\d6b272a2-8f1b-11ee-9e28-7ed9061e9c39\sppsvc.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "explorere" /sc MINUTE /mo 13 /tr "'C:\Program Files\Windows Photo Viewer\de-DE\explorer.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Program Files\Windows Photo Viewer\de-DE\explorer.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "explorere" /sc MINUTE /mo 9 /tr "'C:\Program Files\Windows Photo Viewer\de-DE\explorer.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smsss" /sc MINUTE /mo 7 /tr "'C:\MSOCache\All Users\{90140000-0018-0409-0000-0000000FF1CE}-C\smss.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-0018-0409-0000-0000000FF1CE}-C\smss.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smsss" /sc MINUTE /mo 8 /tr "'C:\MSOCache\All Users\{90140000-0018-0409-0000-0000000FF1CE}-C\smss.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 9 /tr "'C:\Windows\Fonts\WmiPrvSE.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "WmiPrvSE" /sc ONLOGON /tr "'C:\Windows\Fonts\WmiPrvSE.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 13 /tr "'C:\Windows\Fonts\WmiPrvSE.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 5 /tr "'C:\Program Files (x86)\Windows Mail\ja-JP\Idle.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Mail\ja-JP\Idle.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\Windows Mail\ja-JP\Idle.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 6 /tr "'C:\Surrogatesession\dwm.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dwm" /sc ONLOGON /tr "'C:\Surrogatesession\dwm.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 8 /tr "'C:\Surrogatesession\dwm.exe'" /rl HIGHEST /f
C:\Surrogatesession\dwm.exe
"C:\Surrogatesession\dwm.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | sddfasdasfdewfdsaffd.000webhostapp.com | udp |
| US | 145.14.145.134:80 | sddfasdasfdewfdsaffd.000webhostapp.com | tcp |
| US | 145.14.145.134:80 | sddfasdasfdewfdsaffd.000webhostapp.com | tcp |
| US | 145.14.145.134:80 | sddfasdasfdewfdsaffd.000webhostapp.com | tcp |
| US | 8.8.8.8:53 | sddfasdasfdewfdsaffd.000webhostapp.com | udp |
| US | 145.14.144.236:80 | sddfasdasfdewfdsaffd.000webhostapp.com | tcp |
Files
C:\Surrogatesession\1xwZLMSuNR5Dt6umDBBaTv.vbe
| MD5 | b353782b478ab8d51d7db7288b6c34d6 |
| SHA1 | 01a6464ed0e54e13b9e57330c35b6b5046ec2edd |
| SHA256 | 25829c9c131a81171c051150338821527a557d626793db627422f6cc49d29bec |
| SHA512 | 86bb86af7dae35fa31a3e7762b57421f9479ad4ce8707565b43f4bd1d07af314de574d9b7a1abc16ef2ea4f73140eba55c9afd606807aed1eb5cdfd12ffff033 |
C:\Surrogatesession\N4Uo34sDWZJRkkmTLgJx4Vp3o.bat
| MD5 | 72050a7220ffa4b67c82fda3c5edbd3f |
| SHA1 | 7f6e6d7a8320e3a71702701e5b6b90d3c9542d7b |
| SHA256 | 8e58e86ee6a4a88e2576646356b35c3c38968c344c4e6c54d9321ff797cce6fa |
| SHA512 | e2a3b27d311b3c78d1c90da3d7c9d8df9ae371ddc56c1f9b39e900ac53b59d473bc9168840e42a731ee377109732fe2332e6bcdf9cadfa7c78161f7944f0f362 |
\Surrogatesession\containerwebDll.exe
| MD5 | 38ca9b97f4865f8fff319d891f9c365b |
| SHA1 | 68f3322e56cbb1fcd62f4ed69ccdc03f1eafa662 |
| SHA256 | b58427fa6cc17456c4970fc079f0f697ddb35260e7089fa07c66da9fb98aa3ad |
| SHA512 | 52f0ed397edc851ff18d20dd7ed7bdb447511e554807ab70e703b814e1cea439149ed7fa5f27380dc2683b4871ff1f9d109c40364818b8b1945b6a636c849eb9 |
memory/2604-13-0x00000000008A0000-0x00000000009DE000-memory.dmp
memory/2604-14-0x0000000000550000-0x000000000056C000-memory.dmp
memory/2604-15-0x0000000000570000-0x0000000000586000-memory.dmp
memory/2604-16-0x0000000000330000-0x000000000033C000-memory.dmp
memory/2604-17-0x0000000000590000-0x000000000059C000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\lJjcBPjH5n.bat
| MD5 | 36b983189dc96e586fc2c888592575fe |
| SHA1 | 0c0c66850fb32f7d7e62d1eb9e9684e822e535be |
| SHA256 | a65a995fded4b0fbc069b560dd36d40fbb2694bdfb7a8d433fafe926568f93ae |
| SHA512 | 6235bf9641147baa6013820171c3e72f46e4543df8559bfdeccc8c3ceb5b3a073031ee5f0c83d4117a0afbba65d2ee204f031936457e773e7dd846f1436f734d |
memory/856-30-0x00000000013E0000-0x000000000151E000-memory.dmp
memory/1568-51-0x00000000002A0000-0x00000000003DE000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-18 14:18
Reported
2024-06-18 14:21
Platform
win10v2004-20240508-en
Max time kernel
39s
Max time network
46s
Command Line
Signatures
DcRat
Process spawned unexpected child process
| Description | Indicator | Process | Target |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe |
DCRat payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\DCRatBuild.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation | C:\Windows\SysWOW64\WScript.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation | C:\Surrogatesession\containerwebDll.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Surrogatesession\containerwebDll.exe | N/A |
| N/A | N/A | C:\Recovery\WindowsRE\RuntimeBroker.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files\VideoLAN\55b276f4edf653 | C:\Surrogatesession\containerwebDll.exe | N/A |
| File created | C:\Program Files (x86)\Windows Mail\ebf1f9fa8afd6d | C:\Surrogatesession\containerwebDll.exe | N/A |
| File created | C:\Program Files (x86)\Windows Portable Devices\ea9f0e6c9e2dcd | C:\Surrogatesession\containerwebDll.exe | N/A |
| File created | C:\Program Files\Microsoft Office\taskhostw.exe | C:\Surrogatesession\containerwebDll.exe | N/A |
| File created | C:\Program Files\Microsoft Office\ea9f0e6c9e2dcd | C:\Surrogatesession\containerwebDll.exe | N/A |
| File created | C:\Program Files\Mozilla Firefox\csrss.exe | C:\Surrogatesession\containerwebDll.exe | N/A |
| File created | C:\Program Files\VideoLAN\StartMenuExperienceHost.exe | C:\Surrogatesession\containerwebDll.exe | N/A |
| File created | C:\Program Files (x86)\Windows Mail\cmd.exe | C:\Surrogatesession\containerwebDll.exe | N/A |
| File created | C:\Program Files (x86)\Windows Portable Devices\taskhostw.exe | C:\Surrogatesession\containerwebDll.exe | N/A |
| File created | C:\Program Files\Mozilla Firefox\886983d96e3d3e | C:\Surrogatesession\containerwebDll.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\Tasks\sihost.exe | C:\Surrogatesession\containerwebDll.exe | N/A |
| File created | C:\Windows\Tasks\66fc9ff0ee96c2 | C:\Surrogatesession\containerwebDll.exe | N/A |
| File created | C:\Windows\Installer\dllhost.exe | C:\Surrogatesession\containerwebDll.exe | N/A |
| File created | C:\Windows\Installer\5940a34987c991 | C:\Surrogatesession\containerwebDll.exe | N/A |
| File created | C:\Windows\SystemResources\Windows.UI.SettingsAppThreshold\9e8d7a4ca61bd9 | C:\Surrogatesession\containerwebDll.exe | N/A |
| File created | C:\Windows\rescache\_merged\spoolsv.exe | C:\Surrogatesession\containerwebDll.exe | N/A |
| File created | C:\Windows\Media\Savanna\e6c9b481da804f | C:\Surrogatesession\containerwebDll.exe | N/A |
| File created | C:\Windows\SystemResources\Windows.UI.SettingsAppThreshold\RuntimeBroker.exe | C:\Surrogatesession\containerwebDll.exe | N/A |
| File created | C:\Windows\Media\Savanna\OfficeClickToRun.exe | C:\Surrogatesession\containerwebDll.exe | N/A |
Enumerates physical storage devices
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000_Classes\Local Settings | C:\Users\Admin\AppData\Local\Temp\DCRatBuild.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000_Classes\Local Settings | C:\Surrogatesession\containerwebDll.exe | N/A |
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Surrogatesession\containerwebDll.exe | N/A |
| N/A | N/A | C:\Recovery\WindowsRE\RuntimeBroker.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Surrogatesession\containerwebDll.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Recovery\WindowsRE\RuntimeBroker.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\DCRatBuild.exe
"C:\Users\Admin\AppData\Local\Temp\DCRatBuild.exe"
C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Surrogatesession\1xwZLMSuNR5Dt6umDBBaTv.vbe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Surrogatesession\N4Uo34sDWZJRkkmTLgJx4Vp3o.bat" "
C:\Surrogatesession\containerwebDll.exe
"C:\Surrogatesession\containerwebDll.exe"
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 14 /tr "'C:\Recovery\WindowsRE\spoolsv.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\spoolsv.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 6 /tr "'C:\Recovery\WindowsRE\spoolsv.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "StartMenuExperienceHostS" /sc MINUTE /mo 14 /tr "'C:\Program Files\VideoLAN\StartMenuExperienceHost.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "StartMenuExperienceHost" /sc ONLOGON /tr "'C:\Program Files\VideoLAN\StartMenuExperienceHost.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "StartMenuExperienceHostS" /sc MINUTE /mo 9 /tr "'C:\Program Files\VideoLAN\StartMenuExperienceHost.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "cmdc" /sc MINUTE /mo 9 /tr "'C:\Program Files (x86)\Windows Mail\cmd.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "cmd" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Mail\cmd.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "cmdc" /sc MINUTE /mo 7 /tr "'C:\Program Files (x86)\Windows Mail\cmd.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 11 /tr "'C:\Recovery\WindowsRE\RuntimeBroker.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\RuntimeBroker.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 9 /tr "'C:\Recovery\WindowsRE\RuntimeBroker.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 5 /tr "'C:\Windows\SystemResources\Windows.UI.SettingsAppThreshold\RuntimeBroker.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Windows\SystemResources\Windows.UI.SettingsAppThreshold\RuntimeBroker.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 8 /tr "'C:\Windows\SystemResources\Windows.UI.SettingsAppThreshold\RuntimeBroker.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "taskhostwt" /sc MINUTE /mo 5 /tr "'C:\Program Files (x86)\Windows Portable Devices\taskhostw.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "taskhostw" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Portable Devices\taskhostw.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "taskhostwt" /sc MINUTE /mo 10 /tr "'C:\Program Files (x86)\Windows Portable Devices\taskhostw.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "servicess" /sc MINUTE /mo 8 /tr "'C:\Users\Default User\services.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\Users\Default User\services.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "servicess" /sc MINUTE /mo 9 /tr "'C:\Users\Default User\services.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 10 /tr "'C:\Windows\Media\Savanna\OfficeClickToRun.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "OfficeClickToRun" /sc ONLOGON /tr "'C:\Windows\Media\Savanna\OfficeClickToRun.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 8 /tr "'C:\Windows\Media\Savanna\OfficeClickToRun.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sihosts" /sc MINUTE /mo 9 /tr "'C:\Windows\Tasks\sihost.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sihost" /sc ONLOGON /tr "'C:\Windows\Tasks\sihost.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sihosts" /sc MINUTE /mo 13 /tr "'C:\Windows\Tasks\sihost.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "taskhostwt" /sc MINUTE /mo 5 /tr "'C:\Program Files\Microsoft Office\taskhostw.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "taskhostw" /sc ONLOGON /tr "'C:\Program Files\Microsoft Office\taskhostw.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "taskhostwt" /sc MINUTE /mo 13 /tr "'C:\Program Files\Microsoft Office\taskhostw.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 6 /tr "'C:\Windows\Installer\dllhost.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Windows\Installer\dllhost.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 9 /tr "'C:\Windows\Installer\dllhost.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 11 /tr "'C:\Recovery\WindowsRE\RuntimeBroker.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\RuntimeBroker.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 13 /tr "'C:\Recovery\WindowsRE\RuntimeBroker.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 9 /tr "'C:\Surrogatesession\RuntimeBroker.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Surrogatesession\RuntimeBroker.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 12 /tr "'C:\Surrogatesession\RuntimeBroker.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 11 /tr "'C:\Program Files\Mozilla Firefox\csrss.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Program Files\Mozilla Firefox\csrss.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 12 /tr "'C:\Program Files\Mozilla Firefox\csrss.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 6 /tr "'C:\Users\Default User\sppsvc.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Users\Default User\sppsvc.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 6 /tr "'C:\Users\Default User\sppsvc.exe'" /rl HIGHEST /f
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\VO1TslH5FF.bat"
C:\Windows\system32\w32tm.exe
w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
C:\Recovery\WindowsRE\RuntimeBroker.exe
"C:\Recovery\WindowsRE\RuntimeBroker.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | sddfasdasfdewfdsaffd.000webhostapp.com | udp |
| US | 8.8.8.8:53 | sddfasdasfdewfdsaffd.000webhostapp.com | udp |
Files
C:\Surrogatesession\1xwZLMSuNR5Dt6umDBBaTv.vbe
| MD5 | b353782b478ab8d51d7db7288b6c34d6 |
| SHA1 | 01a6464ed0e54e13b9e57330c35b6b5046ec2edd |
| SHA256 | 25829c9c131a81171c051150338821527a557d626793db627422f6cc49d29bec |
| SHA512 | 86bb86af7dae35fa31a3e7762b57421f9479ad4ce8707565b43f4bd1d07af314de574d9b7a1abc16ef2ea4f73140eba55c9afd606807aed1eb5cdfd12ffff033 |
C:\Surrogatesession\N4Uo34sDWZJRkkmTLgJx4Vp3o.bat
| MD5 | 72050a7220ffa4b67c82fda3c5edbd3f |
| SHA1 | 7f6e6d7a8320e3a71702701e5b6b90d3c9542d7b |
| SHA256 | 8e58e86ee6a4a88e2576646356b35c3c38968c344c4e6c54d9321ff797cce6fa |
| SHA512 | e2a3b27d311b3c78d1c90da3d7c9d8df9ae371ddc56c1f9b39e900ac53b59d473bc9168840e42a731ee377109732fe2332e6bcdf9cadfa7c78161f7944f0f362 |
C:\Surrogatesession\containerwebDll.exe
| MD5 | 38ca9b97f4865f8fff319d891f9c365b |
| SHA1 | 68f3322e56cbb1fcd62f4ed69ccdc03f1eafa662 |
| SHA256 | b58427fa6cc17456c4970fc079f0f697ddb35260e7089fa07c66da9fb98aa3ad |
| SHA512 | 52f0ed397edc851ff18d20dd7ed7bdb447511e554807ab70e703b814e1cea439149ed7fa5f27380dc2683b4871ff1f9d109c40364818b8b1945b6a636c849eb9 |
memory/860-12-0x00007FFF7BD03000-0x00007FFF7BD05000-memory.dmp
memory/860-13-0x00000000007A0000-0x00000000008DE000-memory.dmp
memory/860-14-0x00000000010A0000-0x00000000010BC000-memory.dmp
memory/860-15-0x000000001B520000-0x000000001B570000-memory.dmp
memory/860-16-0x0000000002AF0000-0x0000000002B06000-memory.dmp
memory/860-17-0x0000000000E90000-0x0000000000E9C000-memory.dmp
memory/860-18-0x00000000010C0000-0x00000000010CC000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\VO1TslH5FF.bat
| MD5 | 8c9c949c5351ab50ea385a1cc40a5678 |
| SHA1 | f23c2f27c9ea675c6ef7203b1b8fb3a6bb6f689b |
| SHA256 | 169fb8c85023fbee0debe068f4ca06d99058ecd97b84f0be1a9290c3ecb8827c |
| SHA512 | dd81c25262d13e38ec6dc16293126260e2b6135681423761cea3bac8b1cb6d98de5321e2f30720b10a0cf5f2826d2e2884f3a3541564f9c38362c392a0e5b8e5 |