Analysis Overview
SHA256
40c624a1492477b0ed0e5c704447d95f728dfe41b7e857cd1c5018e8d3b3df65
Threat Level: Known bad
The file 40c624a1492477b0ed0e5c704447d95f728dfe41b7e857cd1c5018e8d3b3df65 was found to be: Known bad.
Malicious Activity Summary
SmokeLoader
Executes dropped EXE
Deletes itself
Unsigned PE
Uses Task Scheduler COM API
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Checks SCSI registry key(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-09-22 04:16
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2023-09-22 04:16
Reported
2023-09-22 04:21
Platform
win10-20230831-en
Max time kernel
300s
Max time network
263s
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 opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\40c624a1492477b0ed0e5c704447d95f728dfe41b7e857cd1c5018e8d3b3df65.exe | N/A |
| Key queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\40c624a1492477b0ed0e5c704447d95f728dfe41b7e857cd1c5018e8d3b3df65.exe | N/A |
| Key enumerated | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\40c624a1492477b0ed0e5c704447d95f728dfe41b7e857cd1c5018e8d3b3df65.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\40c624a1492477b0ed0e5c704447d95f728dfe41b7e857cd1c5018e8d3b3df65.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\40c624a1492477b0ed0e5c704447d95f728dfe41b7e857cd1c5018e8d3b3df65.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\40c624a1492477b0ed0e5c704447d95f728dfe41b7e857cd1c5018e8d3b3df65.exe | 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\40c624a1492477b0ed0e5c704447d95f728dfe41b7e857cd1c5018e8d3b3df65.exe
"C:\Users\Admin\AppData\Local\Temp\40c624a1492477b0ed0e5c704447d95f728dfe41b7e857cd1c5018e8d3b3df65.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | gudintas.at | udp |
| KR | 211.40.39.251:80 | gudintas.at | tcp |
| KR | 211.40.39.251:80 | gudintas.at | tcp |
| US | 8.8.8.8:53 | 251.39.40.211.in-addr.arpa | udp |
| KR | 211.40.39.251:80 | gudintas.at | tcp |
| KR | 211.40.39.251:80 | gudintas.at | tcp |
| KR | 211.40.39.251:80 | gudintas.at | tcp |
| AR | 186.182.55.44:80 | gudintas.at | tcp |
| KR | 211.40.39.251:80 | gudintas.at | tcp |
| US | 8.8.8.8:53 | 44.55.182.186.in-addr.arpa | udp |
| KR | 211.40.39.251:80 | gudintas.at | tcp |
| KR | 211.40.39.251:80 | gudintas.at | tcp |
| US | 8.8.8.8:53 | 233.141.123.20.in-addr.arpa | udp |
| AR | 186.182.55.44:80 | gudintas.at | tcp |
| KR | 211.40.39.251:80 | gudintas.at | tcp |
| KR | 211.40.39.251:80 | gudintas.at | tcp |
| AR | 186.182.55.44:80 | gudintas.at | tcp |
| US | 8.8.8.8:53 | 9.57.101.20.in-addr.arpa | udp |
| KR | 211.40.39.251:80 | gudintas.at | tcp |
| KR | 211.40.39.251:80 | gudintas.at | tcp |
| AR | 186.182.55.44:80 | gudintas.at | tcp |
| KR | 211.40.39.251:80 | gudintas.at | tcp |
| US | 8.8.8.8:53 | 88.65.42.20.in-addr.arpa | udp |
| AR | 186.182.55.44:80 | gudintas.at | tcp |
| KR | 211.40.39.251:80 | gudintas.at | tcp |
| AR | 186.182.55.44:80 | gudintas.at | tcp |
| KR | 211.40.39.251:80 | gudintas.at | tcp |
| KR | 211.40.39.251:80 | gudintas.at | tcp |
| KR | 211.40.39.251:80 | gudintas.at | tcp |
| US | 8.8.8.8:53 | gudintas.at | udp |
| KR | 14.33.209.147:80 | gudintas.at | tcp |
| US | 8.8.8.8:53 | 147.209.33.14.in-addr.arpa | udp |
Files
memory/5080-1-0x0000000000920000-0x0000000000A20000-memory.dmp
memory/5080-2-0x0000000000400000-0x0000000000718000-memory.dmp
memory/5080-3-0x0000000000860000-0x0000000000869000-memory.dmp
memory/3184-4-0x0000000002730000-0x0000000002746000-memory.dmp
memory/5080-5-0x0000000000400000-0x0000000000718000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2023-09-22 04:16
Reported
2023-09-22 04:21
Platform
win7-20230831-en
Max time kernel
300s
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\wjwceub | N/A |
Checks SCSI registry key(s)
| Description | Indicator | Process | Target |
| Key queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Roaming\wjwceub | N/A |
| Key enumerated | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Roaming\wjwceub | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\40c624a1492477b0ed0e5c704447d95f728dfe41b7e857cd1c5018e8d3b3df65.exe | N/A |
| Key queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\40c624a1492477b0ed0e5c704447d95f728dfe41b7e857cd1c5018e8d3b3df65.exe | N/A |
| Key enumerated | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Local\Temp\40c624a1492477b0ed0e5c704447d95f728dfe41b7e857cd1c5018e8d3b3df65.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI | C:\Users\Admin\AppData\Roaming\wjwceub | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\40c624a1492477b0ed0e5c704447d95f728dfe41b7e857cd1c5018e8d3b3df65.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\40c624a1492477b0ed0e5c704447d95f728dfe41b7e857cd1c5018e8d3b3df65.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\40c624a1492477b0ed0e5c704447d95f728dfe41b7e857cd1c5018e8d3b3df65.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\wjwceub | 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 2204 wrote to memory of 2520 | N/A | C:\Windows\system32\taskeng.exe | C:\Users\Admin\AppData\Roaming\wjwceub |
| PID 2204 wrote to memory of 2520 | N/A | C:\Windows\system32\taskeng.exe | C:\Users\Admin\AppData\Roaming\wjwceub |
| PID 2204 wrote to memory of 2520 | N/A | C:\Windows\system32\taskeng.exe | C:\Users\Admin\AppData\Roaming\wjwceub |
| PID 2204 wrote to memory of 2520 | N/A | C:\Windows\system32\taskeng.exe | C:\Users\Admin\AppData\Roaming\wjwceub |
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\40c624a1492477b0ed0e5c704447d95f728dfe41b7e857cd1c5018e8d3b3df65.exe
"C:\Users\Admin\AppData\Local\Temp\40c624a1492477b0ed0e5c704447d95f728dfe41b7e857cd1c5018e8d3b3df65.exe"
C:\Windows\system32\taskeng.exe
taskeng.exe {87102147-F08A-41D2-BA4F-08EBAA4C7441} S-1-5-21-3185155662-718608226-894467740-1000:YETUIZPU\Admin:Interactive:[1]
C:\Users\Admin\AppData\Roaming\wjwceub
C:\Users\Admin\AppData\Roaming\wjwceub
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | gudintas.at | udp |
| BA | 185.12.79.25:80 | gudintas.at | tcp |
| BA | 185.12.79.25:80 | gudintas.at | tcp |
| BA | 185.12.79.25:80 | gudintas.at | tcp |
| BA | 185.12.79.25:80 | gudintas.at | tcp |
| BA | 185.12.79.25:80 | gudintas.at | tcp |
| BA | 185.12.79.25:80 | gudintas.at | tcp |
| BA | 185.12.79.25:80 | gudintas.at | tcp |
| BA | 185.12.79.25:80 | gudintas.at | tcp |
| BA | 185.12.79.25:80 | gudintas.at | tcp |
| BA | 185.12.79.25:80 | gudintas.at | tcp |
| KR | 211.168.53.110:80 | gudintas.at | tcp |
| BA | 185.12.79.25:80 | gudintas.at | tcp |
| BA | 185.12.79.25:80 | gudintas.at | tcp |
| BA | 185.12.79.25:80 | gudintas.at | tcp |
| KR | 211.168.53.110:80 | gudintas.at | tcp |
| BA | 185.12.79.25:80 | gudintas.at | tcp |
| KR | 211.168.53.110:80 | gudintas.at | tcp |
| BA | 185.12.79.25:80 | gudintas.at | tcp |
| BA | 185.12.79.25:80 | gudintas.at | tcp |
| KR | 211.168.53.110:80 | gudintas.at | tcp |
| US | 8.8.8.8:53 | gudintas.at | udp |
| AR | 186.182.55.44:80 | gudintas.at | tcp |
| AR | 186.182.55.44:80 | gudintas.at | tcp |
Files
memory/1976-1-0x00000000008A0000-0x00000000009A0000-memory.dmp
memory/1976-2-0x0000000000220000-0x0000000000229000-memory.dmp
memory/1976-3-0x0000000000400000-0x0000000000718000-memory.dmp
memory/1976-5-0x0000000000400000-0x0000000000718000-memory.dmp
memory/1232-4-0x0000000002910000-0x0000000002926000-memory.dmp
memory/1976-8-0x0000000000220000-0x0000000000229000-memory.dmp
memory/1232-13-0x000007FF511F0000-0x000007FF511FA000-memory.dmp
memory/1232-12-0x000007FEF5AA0000-0x000007FEF5BE3000-memory.dmp
C:\Users\Admin\AppData\Roaming\wjwceub
| MD5 | a2d237a8dcda5047bb9e612825ebc499 |
| SHA1 | d4f6d2707f5fc415ec85dcea2b318e1c3d97209c |
| SHA256 | 40c624a1492477b0ed0e5c704447d95f728dfe41b7e857cd1c5018e8d3b3df65 |
| SHA512 | 8e789640a564baa078db349483844acc6f8004d1338bf61c643a9f48a358e75b382b98f991b95901a9a29cf0075962ee312bab8f26492dddd8c183d37d160f14 |
C:\Users\Admin\AppData\Roaming\wjwceub
| MD5 | a2d237a8dcda5047bb9e612825ebc499 |
| SHA1 | d4f6d2707f5fc415ec85dcea2b318e1c3d97209c |
| SHA256 | 40c624a1492477b0ed0e5c704447d95f728dfe41b7e857cd1c5018e8d3b3df65 |
| SHA512 | 8e789640a564baa078db349483844acc6f8004d1338bf61c643a9f48a358e75b382b98f991b95901a9a29cf0075962ee312bab8f26492dddd8c183d37d160f14 |
memory/2520-17-0x00000000007E0000-0x00000000008E0000-memory.dmp
memory/2520-18-0x0000000000400000-0x0000000000718000-memory.dmp
memory/1232-19-0x0000000002A10000-0x0000000002A26000-memory.dmp
memory/2520-20-0x0000000000400000-0x0000000000718000-memory.dmp