Analysis Overview
SHA256
268bb534e403c39232c77c9eda53a7dd703153784b6a3d0e6e29a48f514b5dab
Threat Level: Known bad
The file 268bb534e403c39232c77c9eda53a7dd703153784b6a3d0e6e29a48f514b5dab was found to be: Known bad.
Malicious Activity Summary
SmokeLoader
Deletes itself
Executes dropped EXE
Unsigned PE
Checks SCSI registry key(s)
Suspicious behavior: MapViewOfSection
Uses Task Scheduler COM API
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-02-20 17:39
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-02-20 17:39
Reported
2024-02-20 17:41
Platform
win10v2004-20240220-en
Max time kernel
151s
Max time network
155s
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\abjdbbu | N/A |
Checks SCSI registry key(s)
| Description | Indicator | Process | Target |
| Key enumerated | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Roaming\abjdbbu | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\268bb534e403c39232c77c9eda53a7dd703153784b6a3d0e6e29a48f514b5dab.exe | N/A |
| Key queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\268bb534e403c39232c77c9eda53a7dd703153784b6a3d0e6e29a48f514b5dab.exe | N/A |
| Key enumerated | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\268bb534e403c39232c77c9eda53a7dd703153784b6a3d0e6e29a48f514b5dab.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Roaming\abjdbbu | N/A |
| Key queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Roaming\abjdbbu | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\268bb534e403c39232c77c9eda53a7dd703153784b6a3d0e6e29a48f514b5dab.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\268bb534e403c39232c77c9eda53a7dd703153784b6a3d0e6e29a48f514b5dab.exe | N/A |
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Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\268bb534e403c39232c77c9eda53a7dd703153784b6a3d0e6e29a48f514b5dab.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\abjdbbu | N/A |
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\268bb534e403c39232c77c9eda53a7dd703153784b6a3d0e6e29a48f514b5dab.exe
"C:\Users\Admin\AppData\Local\Temp\268bb534e403c39232c77c9eda53a7dd703153784b6a3d0e6e29a48f514b5dab.exe"
C:\Users\Admin\AppData\Roaming\abjdbbu
C:\Users\Admin\AppData\Roaming\abjdbbu
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 76.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.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 |
| 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 |
| US | 8.8.8.8:53 | 206.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 7.173.189.20.in-addr.arpa | udp |
Files
memory/2968-1-0x0000000000A60000-0x0000000000B60000-memory.dmp
memory/2968-2-0x00000000009C0000-0x00000000009CB000-memory.dmp
memory/2968-3-0x0000000000400000-0x0000000000817000-memory.dmp
memory/3504-4-0x00000000027D0000-0x00000000027E6000-memory.dmp
memory/2968-5-0x0000000000400000-0x0000000000817000-memory.dmp
memory/2968-8-0x00000000009C0000-0x00000000009CB000-memory.dmp
C:\Users\Admin\AppData\Roaming\abjdbbu
| MD5 | 5172685c2a54b119783e66b607ce16ae |
| SHA1 | 21d4f2576999da791d1c3838635e9fc85b144f30 |
| SHA256 | 268bb534e403c39232c77c9eda53a7dd703153784b6a3d0e6e29a48f514b5dab |
| SHA512 | 33c10fe1cac30fc696184f896676ac8f108c06fbacecb0fd7bb2336724f131f2e783eb669d6f081fa9b537ec68c4067f84558a860e1fea97a98eaba6bbd9f535 |
memory/928-15-0x0000000000B00000-0x0000000000C00000-memory.dmp
memory/928-16-0x0000000000400000-0x0000000000817000-memory.dmp
memory/3504-17-0x00000000008D0000-0x00000000008E6000-memory.dmp
memory/928-20-0x0000000000400000-0x0000000000817000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-02-20 17:39
Reported
2024-02-20 17:41
Platform
win7-20231215-en
Max time kernel
150s
Max time network
122s
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\fbgfjev | N/A |
Checks SCSI registry key(s)
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Roaming\fbgfjev | N/A |
| Key queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Roaming\fbgfjev | N/A |
| Key enumerated | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Roaming\fbgfjev | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\268bb534e403c39232c77c9eda53a7dd703153784b6a3d0e6e29a48f514b5dab.exe | N/A |
| Key queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\268bb534e403c39232c77c9eda53a7dd703153784b6a3d0e6e29a48f514b5dab.exe | N/A |
| Key enumerated | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\268bb534e403c39232c77c9eda53a7dd703153784b6a3d0e6e29a48f514b5dab.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\268bb534e403c39232c77c9eda53a7dd703153784b6a3d0e6e29a48f514b5dab.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\268bb534e403c39232c77c9eda53a7dd703153784b6a3d0e6e29a48f514b5dab.exe | N/A |
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Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\268bb534e403c39232c77c9eda53a7dd703153784b6a3d0e6e29a48f514b5dab.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\fbgfjev | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2996 wrote to memory of 2928 | N/A | C:\Windows\system32\taskeng.exe | C:\Users\Admin\AppData\Roaming\fbgfjev |
| PID 2996 wrote to memory of 2928 | N/A | C:\Windows\system32\taskeng.exe | C:\Users\Admin\AppData\Roaming\fbgfjev |
| PID 2996 wrote to memory of 2928 | N/A | C:\Windows\system32\taskeng.exe | C:\Users\Admin\AppData\Roaming\fbgfjev |
| PID 2996 wrote to memory of 2928 | N/A | C:\Windows\system32\taskeng.exe | C:\Users\Admin\AppData\Roaming\fbgfjev |
Processes
C:\Users\Admin\AppData\Local\Temp\268bb534e403c39232c77c9eda53a7dd703153784b6a3d0e6e29a48f514b5dab.exe
"C:\Users\Admin\AppData\Local\Temp\268bb534e403c39232c77c9eda53a7dd703153784b6a3d0e6e29a48f514b5dab.exe"
C:\Windows\system32\taskeng.exe
taskeng.exe {00FBD4E8-F16E-4B9E-B59D-3256D823FA1F} S-1-5-21-928733405-3780110381-2966456290-1000:VTILVGXH\Admin:Interactive:[1]
C:\Users\Admin\AppData\Roaming\fbgfjev
C:\Users\Admin\AppData\Roaming\fbgfjev
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | sjyey.com | 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 |
| 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 |
Files
memory/2500-1-0x0000000000980000-0x0000000000A80000-memory.dmp
memory/2500-2-0x0000000000220000-0x000000000022B000-memory.dmp
memory/2500-3-0x0000000000400000-0x0000000000817000-memory.dmp
memory/2500-5-0x0000000000400000-0x0000000000817000-memory.dmp
memory/1232-4-0x0000000002AA0000-0x0000000002AB6000-memory.dmp
C:\Users\Admin\AppData\Roaming\fbgfjev
| MD5 | 5172685c2a54b119783e66b607ce16ae |
| SHA1 | 21d4f2576999da791d1c3838635e9fc85b144f30 |
| SHA256 | 268bb534e403c39232c77c9eda53a7dd703153784b6a3d0e6e29a48f514b5dab |
| SHA512 | 33c10fe1cac30fc696184f896676ac8f108c06fbacecb0fd7bb2336724f131f2e783eb669d6f081fa9b537ec68c4067f84558a860e1fea97a98eaba6bbd9f535 |
memory/2928-14-0x00000000008C0000-0x00000000009C0000-memory.dmp
memory/2928-15-0x0000000000400000-0x0000000000817000-memory.dmp
memory/1232-16-0x0000000003E00000-0x0000000003E16000-memory.dmp
memory/2928-19-0x0000000000400000-0x0000000000817000-memory.dmp