Resubmissions
26-09-2022 17:41
220926-v9drzacfdr 10Analysis
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max time kernel
131s -
max time network
157s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
26-09-2022 17:41
Static task
static1
Behavioral task
behavioral1
Sample
FILEV123.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
FILEV123.exe
Resource
win10v2004-20220812-en
General
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Target
FILEV123.exe
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Size
300.0MB
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MD5
2a3295c758419a6b8477dad43bd02883
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SHA1
7403d49621e3d9ca470afdd7f0eebcdbdf6d0b65
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SHA256
9a08dc08a2e7bf39078afd478c3e38718416d6dff45a081cd17daecccca262d5
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SHA512
5f2148eb99be6eaea85e4164d6ae72744a7751fec691f382b642da4655c0e463240c981fab9cba5a4d93e25d5549eb9f61dd5ca5267a00c95afdf07d60173d89
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SSDEEP
6144:ABMZbzgN9y4e3q99rUcupj+awhEGXBuokWy0L50qnVjAv2U:AKZbcNUFm5upLwhBXBuoppNnVct
Malware Config
Extracted
asyncrat
5.0.5
Venom Clients
venom12345.duckdns.org:4449
Venom_RAT_HVNC_Mutex_Venom RAT_HVNC
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delay
1
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install
false
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install_folder
%AppData%
Signatures
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Async RAT payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/1056-134-0x0000000000400000-0x0000000000416000-memory.dmp asyncrat -
Executes dropped EXE 2 IoCs
Processes:
msdtc.exemsdtc.exepid process 4016 msdtc.exe 4868 msdtc.exe -
Suspicious use of SetThreadContext 3 IoCs
Processes:
FILEV123.exemsdtc.exemsdtc.exedescription pid process target process PID 3456 set thread context of 1056 3456 FILEV123.exe RegAsm.exe PID 4016 set thread context of 2572 4016 msdtc.exe RegAsm.exe PID 4868 set thread context of 2740 4868 msdtc.exe RegAsm.exe -
Creates scheduled task(s) 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exeschtasks.exepid process 3596 schtasks.exe 4120 schtasks.exe 4020 schtasks.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
Processes:
FILEV123.exeRegAsm.exemsdtc.exeRegAsm.exemsdtc.exeRegAsm.exedescription pid process Token: SeDebugPrivilege 3456 FILEV123.exe Token: SeDebugPrivilege 1056 RegAsm.exe Token: SeDebugPrivilege 4016 msdtc.exe Token: SeDebugPrivilege 2572 RegAsm.exe Token: SeDebugPrivilege 4868 msdtc.exe Token: SeDebugPrivilege 2740 RegAsm.exe -
Suspicious use of WriteProcessMemory 60 IoCs
Processes:
FILEV123.execmd.exemsdtc.execmd.exemsdtc.execmd.exedescription pid process target process PID 3456 wrote to memory of 1056 3456 FILEV123.exe RegAsm.exe PID 3456 wrote to memory of 1056 3456 FILEV123.exe RegAsm.exe PID 3456 wrote to memory of 1056 3456 FILEV123.exe RegAsm.exe PID 3456 wrote to memory of 1056 3456 FILEV123.exe RegAsm.exe PID 3456 wrote to memory of 1056 3456 FILEV123.exe RegAsm.exe PID 3456 wrote to memory of 1056 3456 FILEV123.exe RegAsm.exe PID 3456 wrote to memory of 1056 3456 FILEV123.exe RegAsm.exe PID 3456 wrote to memory of 1056 3456 FILEV123.exe RegAsm.exe PID 3456 wrote to memory of 1352 3456 FILEV123.exe cmd.exe PID 3456 wrote to memory of 1352 3456 FILEV123.exe cmd.exe PID 3456 wrote to memory of 1352 3456 FILEV123.exe cmd.exe PID 3456 wrote to memory of 4360 3456 FILEV123.exe cmd.exe PID 3456 wrote to memory of 4360 3456 FILEV123.exe cmd.exe PID 3456 wrote to memory of 4360 3456 FILEV123.exe cmd.exe PID 3456 wrote to memory of 3904 3456 FILEV123.exe cmd.exe PID 3456 wrote to memory of 3904 3456 FILEV123.exe cmd.exe PID 3456 wrote to memory of 3904 3456 FILEV123.exe cmd.exe PID 4360 wrote to memory of 4120 4360 cmd.exe schtasks.exe PID 4360 wrote to memory of 4120 4360 cmd.exe schtasks.exe PID 4360 wrote to memory of 4120 4360 cmd.exe schtasks.exe PID 4016 wrote to memory of 2572 4016 msdtc.exe RegAsm.exe PID 4016 wrote to memory of 2572 4016 msdtc.exe RegAsm.exe PID 4016 wrote to memory of 2572 4016 msdtc.exe RegAsm.exe PID 4016 wrote to memory of 2572 4016 msdtc.exe RegAsm.exe PID 4016 wrote to memory of 2572 4016 msdtc.exe RegAsm.exe PID 4016 wrote to memory of 2572 4016 msdtc.exe RegAsm.exe PID 4016 wrote to memory of 2572 4016 msdtc.exe RegAsm.exe PID 4016 wrote to memory of 2572 4016 msdtc.exe RegAsm.exe PID 4016 wrote to memory of 2056 4016 msdtc.exe cmd.exe PID 4016 wrote to memory of 2056 4016 msdtc.exe cmd.exe PID 4016 wrote to memory of 2056 4016 msdtc.exe cmd.exe PID 4016 wrote to memory of 1504 4016 msdtc.exe cmd.exe PID 4016 wrote to memory of 1504 4016 msdtc.exe cmd.exe PID 4016 wrote to memory of 1504 4016 msdtc.exe cmd.exe PID 4016 wrote to memory of 372 4016 msdtc.exe cmd.exe PID 4016 wrote to memory of 372 4016 msdtc.exe cmd.exe PID 4016 wrote to memory of 372 4016 msdtc.exe cmd.exe PID 1504 wrote to memory of 4020 1504 cmd.exe schtasks.exe PID 1504 wrote to memory of 4020 1504 cmd.exe schtasks.exe PID 1504 wrote to memory of 4020 1504 cmd.exe schtasks.exe PID 4868 wrote to memory of 2740 4868 msdtc.exe RegAsm.exe PID 4868 wrote to memory of 2740 4868 msdtc.exe RegAsm.exe PID 4868 wrote to memory of 2740 4868 msdtc.exe RegAsm.exe PID 4868 wrote to memory of 2740 4868 msdtc.exe RegAsm.exe PID 4868 wrote to memory of 2740 4868 msdtc.exe RegAsm.exe PID 4868 wrote to memory of 2740 4868 msdtc.exe RegAsm.exe PID 4868 wrote to memory of 2740 4868 msdtc.exe RegAsm.exe PID 4868 wrote to memory of 2740 4868 msdtc.exe RegAsm.exe PID 4868 wrote to memory of 1200 4868 msdtc.exe cmd.exe PID 4868 wrote to memory of 1200 4868 msdtc.exe cmd.exe PID 4868 wrote to memory of 1200 4868 msdtc.exe cmd.exe PID 4868 wrote to memory of 5020 4868 msdtc.exe cmd.exe PID 4868 wrote to memory of 5020 4868 msdtc.exe cmd.exe PID 4868 wrote to memory of 5020 4868 msdtc.exe cmd.exe PID 4868 wrote to memory of 5052 4868 msdtc.exe cmd.exe PID 4868 wrote to memory of 5052 4868 msdtc.exe cmd.exe PID 4868 wrote to memory of 5052 4868 msdtc.exe cmd.exe PID 5020 wrote to memory of 3596 5020 cmd.exe schtasks.exe PID 5020 wrote to memory of 3596 5020 cmd.exe schtasks.exe PID 5020 wrote to memory of 3596 5020 cmd.exe schtasks.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\FILEV123.exe"C:\Users\Admin\AppData\Local\Temp\FILEV123.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\cmd.exe"cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\msdtc"2⤵
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C:\Windows\SysWOW64\cmd.exe"cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe'" /f2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exeschtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe'" /f3⤵
- Creates scheduled task(s)
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C:\Windows\SysWOW64\cmd.exe"cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\FILEV123.exe" "C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe"2⤵
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C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exeC:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\cmd.exe"cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\msdtc"2⤵
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C:\Windows\SysWOW64\cmd.exe"cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe'" /f2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exeschtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe'" /f3⤵
- Creates scheduled task(s)
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C:\Windows\SysWOW64\cmd.exe"cmd" /c copy "C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe" "C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe"2⤵
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C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exeC:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\cmd.exe"cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\msdtc"2⤵
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C:\Windows\SysWOW64\cmd.exe"cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe'" /f2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exeschtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe'" /f3⤵
- Creates scheduled task(s)
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C:\Windows\SysWOW64\cmd.exe"cmd" /c copy "C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe" "C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe"2⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\RegAsm.exe.logFilesize
425B
MD54eaca4566b22b01cd3bc115b9b0b2196
SHA1e743e0792c19f71740416e7b3c061d9f1336bf94
SHA25634ba0ab8d1850e7825763f413142a333ccbc05fa2b5499a28a7d27b8a1c5b4bb
SHA512bc2b1bf45203e3bb3009a7d37617b8f0f7ffa613680b32de2b963e39d2cf1650614d7035a0cf78f35a4f5cb17a2a439e2e07deaefd2a4275a62efd0a5c0184a1
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\msdtc.exe.logFilesize
425B
MD54eaca4566b22b01cd3bc115b9b0b2196
SHA1e743e0792c19f71740416e7b3c061d9f1336bf94
SHA25634ba0ab8d1850e7825763f413142a333ccbc05fa2b5499a28a7d27b8a1c5b4bb
SHA512bc2b1bf45203e3bb3009a7d37617b8f0f7ffa613680b32de2b963e39d2cf1650614d7035a0cf78f35a4f5cb17a2a439e2e07deaefd2a4275a62efd0a5c0184a1
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C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exeFilesize
300.0MB
MD52a3295c758419a6b8477dad43bd02883
SHA17403d49621e3d9ca470afdd7f0eebcdbdf6d0b65
SHA2569a08dc08a2e7bf39078afd478c3e38718416d6dff45a081cd17daecccca262d5
SHA5125f2148eb99be6eaea85e4164d6ae72744a7751fec691f382b642da4655c0e463240c981fab9cba5a4d93e25d5549eb9f61dd5ca5267a00c95afdf07d60173d89
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C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exeFilesize
300.0MB
MD52a3295c758419a6b8477dad43bd02883
SHA17403d49621e3d9ca470afdd7f0eebcdbdf6d0b65
SHA2569a08dc08a2e7bf39078afd478c3e38718416d6dff45a081cd17daecccca262d5
SHA5125f2148eb99be6eaea85e4164d6ae72744a7751fec691f382b642da4655c0e463240c981fab9cba5a4d93e25d5549eb9f61dd5ca5267a00c95afdf07d60173d89
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C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exeFilesize
300.0MB
MD52a3295c758419a6b8477dad43bd02883
SHA17403d49621e3d9ca470afdd7f0eebcdbdf6d0b65
SHA2569a08dc08a2e7bf39078afd478c3e38718416d6dff45a081cd17daecccca262d5
SHA5125f2148eb99be6eaea85e4164d6ae72744a7751fec691f382b642da4655c0e463240c981fab9cba5a4d93e25d5549eb9f61dd5ca5267a00c95afdf07d60173d89
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memory/372-149-0x0000000000000000-mapping.dmp
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memory/1056-139-0x0000000005F50000-0x0000000005FEC000-memory.dmpFilesize
624KB
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memory/1056-140-0x00000000065A0000-0x0000000006B44000-memory.dmpFilesize
5.6MB
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memory/1056-141-0x0000000006060000-0x00000000060C6000-memory.dmpFilesize
408KB
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memory/1056-133-0x0000000000000000-mapping.dmp
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memory/1056-134-0x0000000000400000-0x0000000000416000-memory.dmpFilesize
88KB
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memory/1200-156-0x0000000000000000-mapping.dmp
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memory/1352-135-0x0000000000000000-mapping.dmp
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memory/1504-148-0x0000000000000000-mapping.dmp
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memory/2056-147-0x0000000000000000-mapping.dmp
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memory/2572-145-0x0000000000000000-mapping.dmp
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memory/2740-153-0x0000000000000000-mapping.dmp
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memory/3456-132-0x0000000000130000-0x00000000001BC000-memory.dmpFilesize
560KB
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memory/3596-159-0x0000000000000000-mapping.dmp
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memory/3904-137-0x0000000000000000-mapping.dmp
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memory/4016-144-0x0000000000D90000-0x0000000000E1C000-memory.dmpFilesize
560KB
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memory/4020-150-0x0000000000000000-mapping.dmp
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memory/4120-138-0x0000000000000000-mapping.dmp
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memory/4360-136-0x0000000000000000-mapping.dmp
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memory/5020-157-0x0000000000000000-mapping.dmp
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memory/5052-158-0x0000000000000000-mapping.dmp