Analysis Overview
SHA256
a76ac34a9fc8146224d737ebb15bdbf2e35acd67e274ad328fcab5b99f8a99c1
Threat Level: Known bad
The file a76ac34a9fc8146224d737ebb15bdbf2e35acd67e274ad328fcab5b99f8a99c1_JC.exe was found to be: Known bad.
Malicious Activity Summary
SmokeLoader
Deletes itself
Executes dropped EXE
Unsigned PE
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Checks SCSI registry key(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of FindShellTrayWindow
Suspicious behavior: MapViewOfSection
Suspicious use of SendNotifyMessage
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-09-23 19:09
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2023-09-23 19:09
Reported
2023-09-23 19:12
Platform
win7-20230831-en
Max time kernel
154s
Max time network
127s
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\eugfcir | 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\a76ac34a9fc8146224d737ebb15bdbf2e35acd67e274ad328fcab5b99f8a99c1_JC.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Roaming\eugfcir | N/A |
| Key queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Roaming\eugfcir | N/A |
| Key enumerated | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Roaming\eugfcir | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\a76ac34a9fc8146224d737ebb15bdbf2e35acd67e274ad328fcab5b99f8a99c1_JC.exe | N/A |
| Key queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\a76ac34a9fc8146224d737ebb15bdbf2e35acd67e274ad328fcab5b99f8a99c1_JC.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a76ac34a9fc8146224d737ebb15bdbf2e35acd67e274ad328fcab5b99f8a99c1_JC.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a76ac34a9fc8146224d737ebb15bdbf2e35acd67e274ad328fcab5b99f8a99c1_JC.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\a76ac34a9fc8146224d737ebb15bdbf2e35acd67e274ad328fcab5b99f8a99c1_JC.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\eugfcir | 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 2416 wrote to memory of 3036 | N/A | C:\Windows\system32\taskeng.exe | C:\Users\Admin\AppData\Roaming\eugfcir |
| PID 2416 wrote to memory of 3036 | N/A | C:\Windows\system32\taskeng.exe | C:\Users\Admin\AppData\Roaming\eugfcir |
| PID 2416 wrote to memory of 3036 | N/A | C:\Windows\system32\taskeng.exe | C:\Users\Admin\AppData\Roaming\eugfcir |
| PID 2416 wrote to memory of 3036 | N/A | C:\Windows\system32\taskeng.exe | C:\Users\Admin\AppData\Roaming\eugfcir |
Processes
C:\Users\Admin\AppData\Local\Temp\a76ac34a9fc8146224d737ebb15bdbf2e35acd67e274ad328fcab5b99f8a99c1_JC.exe
"C:\Users\Admin\AppData\Local\Temp\a76ac34a9fc8146224d737ebb15bdbf2e35acd67e274ad328fcab5b99f8a99c1_JC.exe"
C:\Windows\system32\taskeng.exe
taskeng.exe {73D9D5E4-F5EF-4047-834F-A85080719190} S-1-5-21-3750544865-3773649541-1858556521-1000:XOCYHKRS\Admin:Interactive:[1]
C:\Users\Admin\AppData\Roaming\eugfcir
C:\Users\Admin\AppData\Roaming\eugfcir
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | gudintas.at | udp |
| AR | 186.13.17.220:80 | gudintas.at | tcp |
| AR | 186.13.17.220:80 | gudintas.at | tcp |
| AR | 186.13.17.220:80 | gudintas.at | tcp |
| KR | 175.119.10.231:80 | gudintas.at | tcp |
| US | 8.8.8.8:53 | gudintas.at | udp |
| KR | 115.88.24.200:80 | gudintas.at | tcp |
| KR | 115.88.24.200:80 | gudintas.at | tcp |
| KR | 115.88.24.200:80 | gudintas.at | tcp |
| KR | 115.88.24.200:80 | gudintas.at | tcp |
| KR | 115.88.24.200:80 | gudintas.at | tcp |
| KR | 115.88.24.200:80 | gudintas.at | tcp |
| KR | 115.88.24.200:80 | gudintas.at | tcp |
| KR | 115.88.24.200:80 | gudintas.at | tcp |
| KR | 115.88.24.200:80 | gudintas.at | tcp |
| KR | 115.88.24.200:80 | gudintas.at | tcp |
| KR | 115.88.24.200:80 | gudintas.at | tcp |
| KR | 115.88.24.200:80 | gudintas.at | tcp |
| KR | 115.88.24.200:80 | gudintas.at | tcp |
| KR | 115.88.24.200:80 | gudintas.at | tcp |
Files
memory/3020-1-0x00000000007E0000-0x00000000008E0000-memory.dmp
memory/3020-2-0x0000000000400000-0x0000000000711000-memory.dmp
memory/3020-3-0x0000000000220000-0x0000000000229000-memory.dmp
memory/3020-5-0x0000000000400000-0x0000000000711000-memory.dmp
memory/1220-4-0x00000000029D0000-0x00000000029E6000-memory.dmp
C:\Users\Admin\AppData\Roaming\eugfcir
| MD5 | 9abf90bde094785cffbe3f34094b59e0 |
| SHA1 | 18e57ddb3d32d20f526cee6dd2c4731fea2f326b |
| SHA256 | a76ac34a9fc8146224d737ebb15bdbf2e35acd67e274ad328fcab5b99f8a99c1 |
| SHA512 | ede2ad56ae8c63c261f4f51b72b98c257dfbccc384c9926ad6e348821d1316fe1ae1a7d85d5d1048b1b95ef845d523059a5c7f365cbb09634d283be492b7513a |
C:\Users\Admin\AppData\Roaming\eugfcir
| MD5 | 9abf90bde094785cffbe3f34094b59e0 |
| SHA1 | 18e57ddb3d32d20f526cee6dd2c4731fea2f326b |
| SHA256 | a76ac34a9fc8146224d737ebb15bdbf2e35acd67e274ad328fcab5b99f8a99c1 |
| SHA512 | ede2ad56ae8c63c261f4f51b72b98c257dfbccc384c9926ad6e348821d1316fe1ae1a7d85d5d1048b1b95ef845d523059a5c7f365cbb09634d283be492b7513a |
memory/3036-14-0x00000000007B0000-0x00000000008B0000-memory.dmp
memory/3036-15-0x0000000000400000-0x0000000000711000-memory.dmp
memory/1220-16-0x0000000002A20000-0x0000000002A36000-memory.dmp
memory/3036-19-0x0000000000400000-0x0000000000711000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-09-23 19:09
Reported
2023-09-23 19:11
Platform
win10v2004-20230915-en
Max time kernel
150s
Max time network
152s
Command Line
Signatures
SmokeLoader
Checks SCSI registry key(s)
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\a76ac34a9fc8146224d737ebb15bdbf2e35acd67e274ad328fcab5b99f8a99c1_JC.exe | N/A |
| Key queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\a76ac34a9fc8146224d737ebb15bdbf2e35acd67e274ad328fcab5b99f8a99c1_JC.exe | N/A |
| Key enumerated | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\a76ac34a9fc8146224d737ebb15bdbf2e35acd67e274ad328fcab5b99f8a99c1_JC.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a76ac34a9fc8146224d737ebb15bdbf2e35acd67e274ad328fcab5b99f8a99c1_JC.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a76ac34a9fc8146224d737ebb15bdbf2e35acd67e274ad328fcab5b99f8a99c1_JC.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\a76ac34a9fc8146224d737ebb15bdbf2e35acd67e274ad328fcab5b99f8a99c1_JC.exe | N/A |
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\a76ac34a9fc8146224d737ebb15bdbf2e35acd67e274ad328fcab5b99f8a99c1_JC.exe
"C:\Users\Admin\AppData\Local\Temp\a76ac34a9fc8146224d737ebb15bdbf2e35acd67e274ad328fcab5b99f8a99c1_JC.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 254.5.248.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 158.240.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 108.211.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 205.47.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 146.78.124.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.1.85.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.136.104.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | gudintas.at | udp |
| KR | 211.59.14.90:80 | gudintas.at | tcp |
| KR | 211.59.14.90:80 | gudintas.at | tcp |
| US | 8.8.8.8:53 | 90.14.59.211.in-addr.arpa | udp |
| KR | 211.59.14.90:80 | gudintas.at | tcp |
| KR | 211.59.14.90:80 | gudintas.at | tcp |
| KR | 211.59.14.90:80 | gudintas.at | tcp |
| KR | 211.59.14.90:80 | gudintas.at | tcp |
| KR | 211.59.14.90:80 | gudintas.at | tcp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| KR | 211.59.14.90:80 | gudintas.at | tcp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| KR | 211.59.14.90:80 | gudintas.at | tcp |
| US | 8.8.8.8:53 | 240.81.21.72.in-addr.arpa | udp |
| KR | 211.59.14.90:80 | gudintas.at | tcp |
| KR | 211.59.14.90:80 | gudintas.at | tcp |
| KR | 211.59.14.90:80 | gudintas.at | tcp |
| KR | 211.59.14.90:80 | gudintas.at | tcp |
| KR | 211.59.14.90:80 | gudintas.at | tcp |
| KR | 211.59.14.90:80 | gudintas.at | tcp |
| KR | 211.59.14.90:80 | gudintas.at | tcp |
| KR | 211.59.14.90:80 | gudintas.at | tcp |
| US | 8.8.8.8:53 | 8.173.189.20.in-addr.arpa | udp |
Files
memory/3856-1-0x0000000000AB0000-0x0000000000BB0000-memory.dmp
memory/3856-2-0x0000000000870000-0x0000000000879000-memory.dmp
memory/3856-3-0x0000000000400000-0x0000000000711000-memory.dmp
memory/3168-4-0x0000000002750000-0x0000000002766000-memory.dmp
memory/3856-7-0x0000000000870000-0x0000000000879000-memory.dmp
memory/3856-5-0x0000000000400000-0x0000000000711000-memory.dmp