Analysis Overview
SHA256
614d3711b9a519243c954edf8810118793e3ade58ab32ec52478e94021710c0f
Threat Level: Known bad
The file 614d3711b9a519243c954edf8810118793e3ade58ab32ec52478e94021710c0f was found to be: Known bad.
Malicious Activity Summary
SmokeLoader
Deletes itself
Executes dropped EXE
Unsigned PE
Suspicious use of WriteProcessMemory
Checks SCSI registry key(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Uses Task Scheduler COM API
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-02-19 18:21
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-02-19 18:21
Reported
2024-02-19 19:21
Platform
win7-20231215-en
Max time kernel
153s
Max time network
129s
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\ugrjcgf | N/A |
Checks SCSI registry key(s)
| Description | Indicator | Process | Target |
| Key queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\614d3711b9a519243c954edf8810118793e3ade58ab32ec52478e94021710c0f.exe | N/A |
| Key enumerated | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\614d3711b9a519243c954edf8810118793e3ade58ab32ec52478e94021710c0f.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Roaming\ugrjcgf | N/A |
| Key queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Roaming\ugrjcgf | N/A |
| Key enumerated | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Roaming\ugrjcgf | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\614d3711b9a519243c954edf8810118793e3ade58ab32ec52478e94021710c0f.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\614d3711b9a519243c954edf8810118793e3ade58ab32ec52478e94021710c0f.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\614d3711b9a519243c954edf8810118793e3ade58ab32ec52478e94021710c0f.exe | N/A |
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Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\614d3711b9a519243c954edf8810118793e3ade58ab32ec52478e94021710c0f.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\ugrjcgf | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 476 wrote to memory of 636 | N/A | C:\Windows\system32\taskeng.exe | C:\Users\Admin\AppData\Roaming\ugrjcgf |
| PID 476 wrote to memory of 636 | N/A | C:\Windows\system32\taskeng.exe | C:\Users\Admin\AppData\Roaming\ugrjcgf |
| PID 476 wrote to memory of 636 | N/A | C:\Windows\system32\taskeng.exe | C:\Users\Admin\AppData\Roaming\ugrjcgf |
| PID 476 wrote to memory of 636 | N/A | C:\Windows\system32\taskeng.exe | C:\Users\Admin\AppData\Roaming\ugrjcgf |
Processes
C:\Users\Admin\AppData\Local\Temp\614d3711b9a519243c954edf8810118793e3ade58ab32ec52478e94021710c0f.exe
"C:\Users\Admin\AppData\Local\Temp\614d3711b9a519243c954edf8810118793e3ade58ab32ec52478e94021710c0f.exe"
C:\Windows\system32\taskeng.exe
taskeng.exe {79A3EBFB-FFFE-4A39-B5C9-026EFA071BAE} S-1-5-21-3308111660-3636268597-2291490419-1000:JUBFGPHD\Admin:Interactive:[1]
C:\Users\Admin\AppData\Roaming\ugrjcgf
C:\Users\Admin\AppData\Roaming\ugrjcgf
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | sjyey.com | udp |
| KR | 183.100.39.16:80 | sjyey.com | tcp |
| KR | 183.100.39.16:80 | sjyey.com | tcp |
| KR | 183.100.39.16:80 | sjyey.com | tcp |
| KR | 183.100.39.16:80 | sjyey.com | tcp |
| KR | 183.100.39.16:80 | sjyey.com | tcp |
| KR | 183.100.39.16:80 | sjyey.com | tcp |
| KR | 183.100.39.16:80 | sjyey.com | tcp |
Files
memory/2432-1-0x0000000000230000-0x0000000000330000-memory.dmp
memory/2432-2-0x00000000003A0000-0x00000000003AB000-memory.dmp
memory/2432-3-0x0000000000400000-0x000000000044A000-memory.dmp
memory/1220-4-0x0000000002970000-0x0000000002986000-memory.dmp
memory/2432-5-0x0000000000400000-0x000000000044A000-memory.dmp
C:\Users\Admin\AppData\Roaming\ugrjcgf
| MD5 | 4d98ac6bd46f0fbe35210e167e68f7f9 |
| SHA1 | 3c4781b5178fde4e00043ec8dc3d60e16a3bfcba |
| SHA256 | 614d3711b9a519243c954edf8810118793e3ade58ab32ec52478e94021710c0f |
| SHA512 | 1e7fd390611631abd88a13652d0105f00dea67c42ec21f16e7e2974a65c0321736db6297c2c0beb3efa2597816bc8a02725c30aac56a9ad73761c95805c50512 |
memory/636-14-0x0000000000290000-0x0000000000390000-memory.dmp
memory/636-15-0x0000000000400000-0x000000000044A000-memory.dmp
memory/1220-16-0x0000000002BF0000-0x0000000002C06000-memory.dmp
memory/636-17-0x0000000000400000-0x000000000044A000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-02-19 18:21
Reported
2024-02-19 19:23
Platform
win10v2004-20231215-en
Max time kernel
163s
Max time network
170s
Command Line
Signatures
SmokeLoader
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Checks SCSI registry key(s)
| Description | Indicator | Process | Target |
| Key queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\614d3711b9a519243c954edf8810118793e3ade58ab32ec52478e94021710c0f.exe | N/A |
| Key enumerated | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\614d3711b9a519243c954edf8810118793e3ade58ab32ec52478e94021710c0f.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\614d3711b9a519243c954edf8810118793e3ade58ab32ec52478e94021710c0f.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\614d3711b9a519243c954edf8810118793e3ade58ab32ec52478e94021710c0f.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\614d3711b9a519243c954edf8810118793e3ade58ab32ec52478e94021710c0f.exe | N/A |
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Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\614d3711b9a519243c954edf8810118793e3ade58ab32ec52478e94021710c0f.exe | N/A |
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\614d3711b9a519243c954edf8810118793e3ade58ab32ec52478e94021710c0f.exe
"C:\Users\Admin\AppData\Local\Temp\614d3711b9a519243c954edf8810118793e3ade58ab32ec52478e94021710c0f.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.160.77.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | sjyey.com | udp |
| KR | 183.100.39.16:80 | sjyey.com | tcp |
| US | 8.8.8.8:53 | 16.39.100.183.in-addr.arpa | udp |
| KR | 183.100.39.16:80 | sjyey.com | tcp |
| US | 8.8.8.8:53 | sjyey.com | udp |
| KR | 211.171.233.126:80 | sjyey.com | tcp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 126.233.171.211.in-addr.arpa | udp |
| KR | 211.171.233.126:80 | sjyey.com | tcp |
| KR | 211.171.233.126:80 | sjyey.com | tcp |
| KR | 211.171.233.126:80 | sjyey.com | tcp |
| KR | 211.171.233.126:80 | sjyey.com | tcp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 16.173.189.20.in-addr.arpa | udp |
Files
memory/3048-2-0x0000000000530000-0x000000000053B000-memory.dmp
memory/3048-1-0x0000000000540000-0x0000000000640000-memory.dmp
memory/3048-3-0x0000000000400000-0x000000000044A000-memory.dmp
memory/3048-4-0x0000000000400000-0x000000000044A000-memory.dmp
memory/3512-5-0x0000000000620000-0x0000000000636000-memory.dmp
memory/3048-6-0x0000000000400000-0x000000000044A000-memory.dmp
memory/3048-9-0x0000000000530000-0x000000000053B000-memory.dmp