Analysis Overview
SHA256
04b9dd522381f5c4d44fe5c321e963bea56e47841d8da727bcd408aa6fd05840
Threat Level: Known bad
The file 04b9dd522381f5c4d44fe5c321e963bea56e47841d8da727bcd408aa6fd05840 was found to be: Known bad.
Malicious Activity Summary
SmokeLoader
Deletes itself
Executes dropped EXE
Unsigned PE
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Uses Task Scheduler COM API
Checks SCSI registry key(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-02-23 04:47
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-02-23 04:47
Reported
2024-02-23 04:52
Platform
win7-20240220-en
Max time kernel
300s
Max time network
120s
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\atvwhwe | N/A |
Checks SCSI registry key(s)
| Description | Indicator | Process | Target |
| Key queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Roaming\atvwhwe | N/A |
| Key enumerated | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Roaming\atvwhwe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\04b9dd522381f5c4d44fe5c321e963bea56e47841d8da727bcd408aa6fd05840.exe | N/A |
| Key queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\04b9dd522381f5c4d44fe5c321e963bea56e47841d8da727bcd408aa6fd05840.exe | N/A |
| Key enumerated | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\04b9dd522381f5c4d44fe5c321e963bea56e47841d8da727bcd408aa6fd05840.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Roaming\atvwhwe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\04b9dd522381f5c4d44fe5c321e963bea56e47841d8da727bcd408aa6fd05840.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\04b9dd522381f5c4d44fe5c321e963bea56e47841d8da727bcd408aa6fd05840.exe | N/A |
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Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\04b9dd522381f5c4d44fe5c321e963bea56e47841d8da727bcd408aa6fd05840.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\atvwhwe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeShutdownPrivilege | N/A | N/A | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1648 wrote to memory of 2440 | N/A | C:\Windows\system32\taskeng.exe | C:\Users\Admin\AppData\Roaming\atvwhwe |
| PID 1648 wrote to memory of 2440 | N/A | C:\Windows\system32\taskeng.exe | C:\Users\Admin\AppData\Roaming\atvwhwe |
| PID 1648 wrote to memory of 2440 | N/A | C:\Windows\system32\taskeng.exe | C:\Users\Admin\AppData\Roaming\atvwhwe |
| PID 1648 wrote to memory of 2440 | N/A | C:\Windows\system32\taskeng.exe | C:\Users\Admin\AppData\Roaming\atvwhwe |
Processes
C:\Users\Admin\AppData\Local\Temp\04b9dd522381f5c4d44fe5c321e963bea56e47841d8da727bcd408aa6fd05840.exe
"C:\Users\Admin\AppData\Local\Temp\04b9dd522381f5c4d44fe5c321e963bea56e47841d8da727bcd408aa6fd05840.exe"
C:\Windows\system32\taskeng.exe
taskeng.exe {67514099-05AB-4FE3-88F8-7146F0446CD9} S-1-5-21-2721934792-624042501-2768869379-1000:BISMIZHX\Admin:Interactive:[1]
C:\Users\Admin\AppData\Roaming\atvwhwe
C:\Users\Admin\AppData\Roaming\atvwhwe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | sjyey.com | udp |
| AR | 186.13.17.220:80 | sjyey.com | tcp |
| AR | 186.13.17.220:80 | sjyey.com | tcp |
| AR | 186.13.17.220:80 | sjyey.com | tcp |
| AR | 186.13.17.220:80 | sjyey.com | tcp |
| AR | 186.13.17.220:80 | sjyey.com | tcp |
| AR | 186.13.17.220:80 | sjyey.com | tcp |
| AR | 186.13.17.220:80 | sjyey.com | tcp |
| AR | 186.13.17.220:80 | sjyey.com | tcp |
| AR | 186.13.17.220:80 | sjyey.com | tcp |
Files
memory/2924-1-0x0000000000230000-0x0000000000330000-memory.dmp
memory/2924-2-0x0000000000400000-0x00000000022CA000-memory.dmp
memory/2924-3-0x00000000003A0000-0x00000000003AB000-memory.dmp
memory/1064-4-0x0000000002AD0000-0x0000000002AE6000-memory.dmp
memory/2924-5-0x0000000000400000-0x00000000022CA000-memory.dmp
C:\Users\Admin\AppData\Roaming\atvwhwe
| MD5 | d7396862e257bd1cd7e8741eb543f147 |
| SHA1 | 73a69269e5fdd90df5e1a470d8bb032ea562ad7a |
| SHA256 | 04b9dd522381f5c4d44fe5c321e963bea56e47841d8da727bcd408aa6fd05840 |
| SHA512 | 44b5a79bebc0e972baa76d408c5107b8eeafba6d722968f74367b12e3290c645e4c6746c8ab4b2362cef03516760b393e5f9477cb5152034f4c85614c1c2b435 |
memory/2440-14-0x0000000002410000-0x0000000002510000-memory.dmp
memory/2440-15-0x0000000000400000-0x00000000022CA000-memory.dmp
memory/1064-16-0x0000000002970000-0x0000000002986000-memory.dmp
memory/2440-17-0x0000000000400000-0x00000000022CA000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-02-23 04:47
Reported
2024-02-23 04:52
Platform
win10-20240214-en
Max time kernel
300s
Max time network
261s
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\ssucvgh | N/A |
Checks SCSI registry key(s)
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\04b9dd522381f5c4d44fe5c321e963bea56e47841d8da727bcd408aa6fd05840.exe | N/A |
| Key queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\04b9dd522381f5c4d44fe5c321e963bea56e47841d8da727bcd408aa6fd05840.exe | N/A |
| Key enumerated | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\04b9dd522381f5c4d44fe5c321e963bea56e47841d8da727bcd408aa6fd05840.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Roaming\ssucvgh | N/A |
| Key queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Roaming\ssucvgh | N/A |
| Key enumerated | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Roaming\ssucvgh | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\04b9dd522381f5c4d44fe5c321e963bea56e47841d8da727bcd408aa6fd05840.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\04b9dd522381f5c4d44fe5c321e963bea56e47841d8da727bcd408aa6fd05840.exe | N/A |
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Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\04b9dd522381f5c4d44fe5c321e963bea56e47841d8da727bcd408aa6fd05840.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\ssucvgh | 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 |
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\04b9dd522381f5c4d44fe5c321e963bea56e47841d8da727bcd408aa6fd05840.exe
"C:\Users\Admin\AppData\Local\Temp\04b9dd522381f5c4d44fe5c321e963bea56e47841d8da727bcd408aa6fd05840.exe"
C:\Users\Admin\AppData\Roaming\ssucvgh
C:\Users\Admin\AppData\Roaming\ssucvgh
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | sjyey.com | udp |
| KR | 210.182.29.70:80 | sjyey.com | tcp |
| US | 8.8.8.8:53 | 70.29.182.210.in-addr.arpa | udp |
| KR | 210.182.29.70:80 | sjyey.com | tcp |
| KR | 210.182.29.70:80 | sjyey.com | tcp |
| KR | 210.182.29.70:80 | sjyey.com | tcp |
| KR | 210.182.29.70:80 | sjyey.com | tcp |
| KR | 210.182.29.70:80 | sjyey.com | tcp |
| KR | 210.182.29.70:80 | sjyey.com | tcp |
| KR | 210.182.29.70:80 | sjyey.com | tcp |
| KR | 210.182.29.70:80 | sjyey.com | tcp |
| US | 8.8.8.8:53 | 19.229.111.52.in-addr.arpa | udp |
Files
memory/764-1-0x00000000023F0000-0x00000000024F0000-memory.dmp
memory/764-2-0x0000000002330000-0x000000000233B000-memory.dmp
memory/764-3-0x0000000000400000-0x00000000022CA000-memory.dmp
memory/3308-4-0x0000000001090000-0x00000000010A6000-memory.dmp
memory/764-5-0x0000000000400000-0x00000000022CA000-memory.dmp
C:\Users\Admin\AppData\Roaming\ssucvgh
| MD5 | d7396862e257bd1cd7e8741eb543f147 |
| SHA1 | 73a69269e5fdd90df5e1a470d8bb032ea562ad7a |
| SHA256 | 04b9dd522381f5c4d44fe5c321e963bea56e47841d8da727bcd408aa6fd05840 |
| SHA512 | 44b5a79bebc0e972baa76d408c5107b8eeafba6d722968f74367b12e3290c645e4c6746c8ab4b2362cef03516760b393e5f9477cb5152034f4c85614c1c2b435 |
memory/1520-14-0x00000000025A0000-0x00000000026A0000-memory.dmp
memory/1520-15-0x0000000000400000-0x00000000022CA000-memory.dmp
memory/3308-16-0x0000000002FF0000-0x0000000003006000-memory.dmp
memory/1520-19-0x0000000000400000-0x00000000022CA000-memory.dmp