Analysis Overview
SHA256
b8b2ae812b47196a7be9ec41d6186eeaf28f2924b906299995db446be091d5e0
Threat Level: Known bad
The file b8b2ae812b47196a7be9ec41d6186eeaf28f2924b906299995db446be091d5e0 was found to be: Known bad.
Malicious Activity Summary
SmokeLoader
Deletes itself
Executes dropped EXE
Unsigned PE
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Suspicious behavior: MapViewOfSection
Uses Task Scheduler COM API
Modifies registry class
Suspicious use of SendNotifyMessage
Suspicious use of AdjustPrivilegeToken
Checks SCSI registry key(s)
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-03-07 12:08
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-03-07 12:08
Reported
2024-03-07 12:10
Platform
win7-20240221-en
Max time kernel
150s
Max time network
123s
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\jsvdgtc | N/A |
Checks SCSI registry key(s)
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Roaming\jsvdgtc | N/A |
| Key queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Roaming\jsvdgtc | N/A |
| Key enumerated | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Roaming\jsvdgtc | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\b8b2ae812b47196a7be9ec41d6186eeaf28f2924b906299995db446be091d5e0.exe | N/A |
| Key queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\b8b2ae812b47196a7be9ec41d6186eeaf28f2924b906299995db446be091d5e0.exe | N/A |
| Key enumerated | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\b8b2ae812b47196a7be9ec41d6186eeaf28f2924b906299995db446be091d5e0.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b8b2ae812b47196a7be9ec41d6186eeaf28f2924b906299995db446be091d5e0.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b8b2ae812b47196a7be9ec41d6186eeaf28f2924b906299995db446be091d5e0.exe | N/A |
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Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b8b2ae812b47196a7be9ec41d6186eeaf28f2924b906299995db446be091d5e0.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\jsvdgtc | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Suspicious use of SendNotifyMessage
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1924 wrote to memory of 1968 | N/A | C:\Windows\system32\taskeng.exe | C:\Users\Admin\AppData\Roaming\jsvdgtc |
| PID 1924 wrote to memory of 1968 | N/A | C:\Windows\system32\taskeng.exe | C:\Users\Admin\AppData\Roaming\jsvdgtc |
| PID 1924 wrote to memory of 1968 | N/A | C:\Windows\system32\taskeng.exe | C:\Users\Admin\AppData\Roaming\jsvdgtc |
| PID 1924 wrote to memory of 1968 | N/A | C:\Windows\system32\taskeng.exe | C:\Users\Admin\AppData\Roaming\jsvdgtc |
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\b8b2ae812b47196a7be9ec41d6186eeaf28f2924b906299995db446be091d5e0.exe
"C:\Users\Admin\AppData\Local\Temp\b8b2ae812b47196a7be9ec41d6186eeaf28f2924b906299995db446be091d5e0.exe"
C:\Windows\system32\taskeng.exe
taskeng.exe {1D851EDE-6658-408B-A2C5-518C677FAF7A} S-1-5-21-406356229-2805545415-1236085040-1000:IKJSPGIM\Admin:Interactive:[1]
C:\Users\Admin\AppData\Roaming\jsvdgtc
C:\Users\Admin\AppData\Roaming\jsvdgtc
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | gxutc2c.com | udp |
| PE | 190.187.52.42:80 | gxutc2c.com | tcp |
| PE | 190.187.52.42:80 | gxutc2c.com | tcp |
| PE | 190.187.52.42:80 | gxutc2c.com | tcp |
| PE | 190.187.52.42:80 | gxutc2c.com | tcp |
| PE | 190.187.52.42:80 | gxutc2c.com | tcp |
| PE | 190.187.52.42:80 | gxutc2c.com | tcp |
| PE | 190.187.52.42:80 | gxutc2c.com | tcp |
| PE | 190.187.52.42:80 | gxutc2c.com | tcp |
| PE | 190.187.52.42:80 | gxutc2c.com | tcp |
| PE | 190.187.52.42:80 | gxutc2c.com | tcp |
| PE | 190.187.52.42:80 | gxutc2c.com | tcp |
| PE | 190.187.52.42:80 | gxutc2c.com | tcp |
| PE | 190.187.52.42:80 | gxutc2c.com | tcp |
| PE | 190.187.52.42:80 | gxutc2c.com | tcp |
Files
memory/2208-2-0x00000000003A0000-0x00000000003AB000-memory.dmp
memory/2208-3-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2208-1-0x0000000000230000-0x0000000000330000-memory.dmp
memory/2208-5-0x0000000000400000-0x0000000000438000-memory.dmp
memory/1288-4-0x0000000002C00000-0x0000000002C16000-memory.dmp
C:\Users\Admin\AppData\Roaming\jsvdgtc
| MD5 | d0936de24510643fa68b2d3879ad79d9 |
| SHA1 | b9f5bf48d34dfae63e695bfd90efad0a8137ede9 |
| SHA256 | b8b2ae812b47196a7be9ec41d6186eeaf28f2924b906299995db446be091d5e0 |
| SHA512 | 4cf4dbfad11b4e9ac58243670027e6387d47bb74544777fedbe57c3e2e1373ca9fcf6727087bc1ae3c3d898e890e11f425b2b06cb611a205b8bc3c5bb89c1480 |
memory/1968-14-0x00000000005A0000-0x00000000006A0000-memory.dmp
memory/1968-15-0x0000000000400000-0x0000000000438000-memory.dmp
memory/1968-17-0x0000000000400000-0x0000000000438000-memory.dmp
memory/1288-16-0x0000000002D30000-0x0000000002D46000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-07 12:08
Reported
2024-03-07 12:10
Platform
win10v2004-20240226-en
Max time kernel
150s
Max time network
149s
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\ftvaeug | N/A |
Checks SCSI registry key(s)
| Description | Indicator | Process | Target |
| Key enumerated | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\b8b2ae812b47196a7be9ec41d6186eeaf28f2924b906299995db446be091d5e0.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Roaming\ftvaeug | N/A |
| Key queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Roaming\ftvaeug | N/A |
| Key enumerated | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Roaming\ftvaeug | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\b8b2ae812b47196a7be9ec41d6186eeaf28f2924b906299995db446be091d5e0.exe | N/A |
| Key queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\b8b2ae812b47196a7be9ec41d6186eeaf28f2924b906299995db446be091d5e0.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ | N/A | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ | N/A | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ | N/A | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b8b2ae812b47196a7be9ec41d6186eeaf28f2924b906299995db446be091d5e0.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b8b2ae812b47196a7be9ec41d6186eeaf28f2924b906299995db446be091d5e0.exe | N/A |
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Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b8b2ae812b47196a7be9ec41d6186eeaf28f2924b906299995db446be091d5e0.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\ftvaeug | 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 |
| 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 |
| Token: SeManageVolumePrivilege | N/A | C:\Windows\System32\svchost.exe | N/A |
| 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 |
| 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 |
| Token: SeShutdownPrivilege | N/A | N/A | N/A |
| Token: SeCreatePagefilePrivilege | N/A | N/A | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\b8b2ae812b47196a7be9ec41d6186eeaf28f2924b906299995db446be091d5e0.exe
"C:\Users\Admin\AppData\Local\Temp\b8b2ae812b47196a7be9ec41d6186eeaf28f2924b906299995db446be091d5e0.exe"
C:\Users\Admin\AppData\Roaming\ftvaeug
C:\Users\Admin\AppData\Roaming\ftvaeug
C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe
C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k UnistackSvcGroup
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 0.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.113.22.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | gxutc2c.com | udp |
| KR | 211.53.230.67:80 | gxutc2c.com | tcp |
| US | 8.8.8.8:53 | 67.230.53.211.in-addr.arpa | udp |
| KR | 211.53.230.67:80 | gxutc2c.com | tcp |
| KR | 211.53.230.67:80 | gxutc2c.com | tcp |
| KR | 211.53.230.67:80 | gxutc2c.com | tcp |
| KR | 211.53.230.67:80 | gxutc2c.com | tcp |
| US | 8.8.8.8:53 | 100.5.17.2.in-addr.arpa | udp |
| KR | 211.53.230.67:80 | gxutc2c.com | tcp |
| KR | 211.53.230.67:80 | gxutc2c.com | tcp |
| US | 8.8.8.8:53 | 119.110.54.20.in-addr.arpa | udp |
| KR | 211.53.230.67:80 | gxutc2c.com | tcp |
| KR | 211.53.230.67:80 | gxutc2c.com | tcp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| KR | 211.53.230.67:80 | gxutc2c.com | tcp |
| KR | 211.53.230.67:80 | gxutc2c.com | tcp |
| US | 8.8.8.8:53 | 205.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.205.248.87.in-addr.arpa | udp |
| KR | 211.53.230.67:80 | gxutc2c.com | tcp |
| US | 8.8.8.8:53 | 42.134.221.88.in-addr.arpa | udp |
| KR | 211.53.230.67:80 | gxutc2c.com | tcp |
| KR | 211.53.230.67:80 | gxutc2c.com | tcp |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 59.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | udp |
Files
memory/2348-1-0x0000000000570000-0x0000000000670000-memory.dmp
memory/2348-2-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2348-3-0x0000000000520000-0x000000000052B000-memory.dmp
memory/3512-4-0x00000000023C0000-0x00000000023D6000-memory.dmp
memory/2348-5-0x0000000000400000-0x0000000000438000-memory.dmp
C:\Users\Admin\AppData\Roaming\ftvaeug
| MD5 | d0936de24510643fa68b2d3879ad79d9 |
| SHA1 | b9f5bf48d34dfae63e695bfd90efad0a8137ede9 |
| SHA256 | b8b2ae812b47196a7be9ec41d6186eeaf28f2924b906299995db446be091d5e0 |
| SHA512 | 4cf4dbfad11b4e9ac58243670027e6387d47bb74544777fedbe57c3e2e1373ca9fcf6727087bc1ae3c3d898e890e11f425b2b06cb611a205b8bc3c5bb89c1480 |
memory/816-14-0x0000000000470000-0x0000000000570000-memory.dmp
memory/816-15-0x0000000000400000-0x0000000000438000-memory.dmp
memory/3512-16-0x0000000002420000-0x0000000002436000-memory.dmp
memory/816-17-0x0000000000400000-0x0000000000438000-memory.dmp
memory/1928-20-0x0000028EBD350000-0x0000028EBD360000-memory.dmp
memory/1928-36-0x0000028EBD450000-0x0000028EBD460000-memory.dmp
memory/1928-52-0x0000028EC57C0000-0x0000028EC57C1000-memory.dmp
memory/1928-54-0x0000028EC57F0000-0x0000028EC57F1000-memory.dmp
memory/1928-55-0x0000028EC57F0000-0x0000028EC57F1000-memory.dmp
memory/1928-56-0x0000028EC5900000-0x0000028EC5901000-memory.dmp