Analysis Overview
SHA256
a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50
Threat Level: Known bad
The file a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50 was found to be: Known bad.
Malicious Activity Summary
SmokeLoader
Loads dropped DLL
Executes dropped EXE
Deletes itself
Suspicious use of SetThreadContext
Unsigned PE
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: MapViewOfSection
Suspicious behavior: GetForegroundWindowSpam
Checks SCSI registry key(s)
Uses Task Scheduler COM API
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-09-16 04:48
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2023-09-16 04:48
Reported
2023-09-16 04:53
Platform
win7-20230831-en
Max time kernel
300s
Max time network
121s
Command Line
Signatures
SmokeLoader
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\hrgwjtg | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\hrgwjtg | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\hrgwjtg | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2996 set thread context of 3060 | N/A | C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe | C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe |
| PID 1420 set thread context of 2556 | N/A | C:\Users\Admin\AppData\Roaming\hrgwjtg | C:\Users\Admin\AppData\Roaming\hrgwjtg |
Checks SCSI registry key(s)
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe | N/A |
| Key queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe | N/A |
| Key enumerated | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Roaming\hrgwjtg | N/A |
| Key queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Roaming\hrgwjtg | N/A |
| Key enumerated | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Roaming\hrgwjtg | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe | N/A |
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Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\hrgwjtg | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeShutdownPrivilege | N/A | N/A | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe
"C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe"
C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe
"C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe"
C:\Windows\system32\taskeng.exe
taskeng.exe {7DAD6D94-19F9-43FB-988B-A49C61405419} S-1-5-21-3513876443-2771975297-1923446376-1000:GPFFWLPI\Admin:Interactive:[1]
C:\Users\Admin\AppData\Roaming\hrgwjtg
C:\Users\Admin\AppData\Roaming\hrgwjtg
C:\Users\Admin\AppData\Roaming\hrgwjtg
C:\Users\Admin\AppData\Roaming\hrgwjtg
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | host-file-host6.com | udp |
| US | 8.8.8.8:53 | host-host-file8.com | udp |
| NL | 194.169.175.127:80 | host-host-file8.com | tcp |
Files
memory/2996-3-0x00000000001B0000-0x00000000001B9000-memory.dmp
memory/3060-2-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2996-1-0x0000000000270000-0x0000000000370000-memory.dmp
memory/3060-5-0x0000000000400000-0x0000000000409000-memory.dmp
memory/3060-6-0x0000000000400000-0x0000000000409000-memory.dmp
memory/1380-7-0x0000000002730000-0x0000000002746000-memory.dmp
memory/3060-8-0x0000000000400000-0x0000000000409000-memory.dmp
C:\Users\Admin\AppData\Roaming\hrgwjtg
| MD5 | 5ee48fa6fdc554fbacbbc9b66da4f2aa |
| SHA1 | 006f3580e833bc5e965ddc5cf4593396c96031dc |
| SHA256 | a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50 |
| SHA512 | 21f184ab5a541611f7342c6823addcd37a28aef72956b87874e3ee1631b9212fe5afac9f2b8d744b6d04170c8381a79d5c0500a31a454f08cdd1469f904e07fe |
C:\Users\Admin\AppData\Roaming\hrgwjtg
| MD5 | 5ee48fa6fdc554fbacbbc9b66da4f2aa |
| SHA1 | 006f3580e833bc5e965ddc5cf4593396c96031dc |
| SHA256 | a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50 |
| SHA512 | 21f184ab5a541611f7342c6823addcd37a28aef72956b87874e3ee1631b9212fe5afac9f2b8d744b6d04170c8381a79d5c0500a31a454f08cdd1469f904e07fe |
memory/1420-19-0x0000000000B80000-0x0000000000C80000-memory.dmp
\Users\Admin\AppData\Roaming\hrgwjtg
| MD5 | 5ee48fa6fdc554fbacbbc9b66da4f2aa |
| SHA1 | 006f3580e833bc5e965ddc5cf4593396c96031dc |
| SHA256 | a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50 |
| SHA512 | 21f184ab5a541611f7342c6823addcd37a28aef72956b87874e3ee1631b9212fe5afac9f2b8d744b6d04170c8381a79d5c0500a31a454f08cdd1469f904e07fe |
C:\Users\Admin\AppData\Roaming\hrgwjtg
| MD5 | 5ee48fa6fdc554fbacbbc9b66da4f2aa |
| SHA1 | 006f3580e833bc5e965ddc5cf4593396c96031dc |
| SHA256 | a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50 |
| SHA512 | 21f184ab5a541611f7342c6823addcd37a28aef72956b87874e3ee1631b9212fe5afac9f2b8d744b6d04170c8381a79d5c0500a31a454f08cdd1469f904e07fe |
memory/2556-24-0x0000000000400000-0x0000000000409000-memory.dmp
memory/1380-25-0x0000000002990000-0x00000000029A6000-memory.dmp
memory/2556-26-0x0000000000400000-0x0000000000409000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-09-16 04:48
Reported
2023-09-16 04:53
Platform
win10-20230915-en
Max time kernel
300s
Max time network
256s
Command Line
Signatures
SmokeLoader
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\ctwvahc | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\ctwvahc | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 784 set thread context of 4124 | N/A | C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe | C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe |
| PID 4480 set thread context of 1268 | N/A | C:\Users\Admin\AppData\Roaming\ctwvahc | C:\Users\Admin\AppData\Roaming\ctwvahc |
Checks SCSI registry key(s)
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe | N/A |
| Key queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe | N/A |
| Key enumerated | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Roaming\ctwvahc | N/A |
| Key queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Roaming\ctwvahc | N/A |
| Key enumerated | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Roaming\ctwvahc | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe | N/A |
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Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\ctwvahc | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeShutdownPrivilege | N/A | N/A | N/A |
| Token: SeCreatePagefilePrivilege | N/A | N/A | N/A |
| Token: SeShutdownPrivilege | N/A | N/A | N/A |
| Token: SeCreatePagefilePrivilege | N/A | N/A | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe
"C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe"
C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe
"C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe"
C:\Users\Admin\AppData\Roaming\ctwvahc
C:\Users\Admin\AppData\Roaming\ctwvahc
C:\Users\Admin\AppData\Roaming\ctwvahc
C:\Users\Admin\AppData\Roaming\ctwvahc
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | host-file-host6.com | udp |
| US | 8.8.8.8:53 | host-host-file8.com | udp |
| NL | 194.169.175.127:80 | host-host-file8.com | tcp |
| US | 8.8.8.8:53 | 127.175.169.194.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.173.189.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 126.132.60.8.in-addr.arpa | udp |
Files
memory/784-1-0x0000000000720000-0x0000000000820000-memory.dmp
memory/784-2-0x0000000002310000-0x0000000002319000-memory.dmp
memory/4124-3-0x0000000000400000-0x0000000000409000-memory.dmp
memory/4124-4-0x0000000000400000-0x0000000000409000-memory.dmp
memory/4124-6-0x0000000000400000-0x0000000000409000-memory.dmp
memory/2832-5-0x0000000000F20000-0x0000000000F36000-memory.dmp
C:\Users\Admin\AppData\Roaming\ctwvahc
| MD5 | 5ee48fa6fdc554fbacbbc9b66da4f2aa |
| SHA1 | 006f3580e833bc5e965ddc5cf4593396c96031dc |
| SHA256 | a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50 |
| SHA512 | 21f184ab5a541611f7342c6823addcd37a28aef72956b87874e3ee1631b9212fe5afac9f2b8d744b6d04170c8381a79d5c0500a31a454f08cdd1469f904e07fe |
C:\Users\Admin\AppData\Roaming\ctwvahc
| MD5 | 5ee48fa6fdc554fbacbbc9b66da4f2aa |
| SHA1 | 006f3580e833bc5e965ddc5cf4593396c96031dc |
| SHA256 | a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50 |
| SHA512 | 21f184ab5a541611f7342c6823addcd37a28aef72956b87874e3ee1631b9212fe5afac9f2b8d744b6d04170c8381a79d5c0500a31a454f08cdd1469f904e07fe |
memory/4480-16-0x0000000000730000-0x0000000000830000-memory.dmp
C:\Users\Admin\AppData\Roaming\ctwvahc
| MD5 | 5ee48fa6fdc554fbacbbc9b66da4f2aa |
| SHA1 | 006f3580e833bc5e965ddc5cf4593396c96031dc |
| SHA256 | a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50 |
| SHA512 | 21f184ab5a541611f7342c6823addcd37a28aef72956b87874e3ee1631b9212fe5afac9f2b8d744b6d04170c8381a79d5c0500a31a454f08cdd1469f904e07fe |
memory/2832-19-0x00000000010C0000-0x00000000010D6000-memory.dmp
memory/1268-20-0x0000000000400000-0x0000000000409000-memory.dmp