Analysis Overview
SHA256
2a3c5d424e042d82f295aba4197bc052355cbea30b0fa9c419a1cd7fb6c2bc31
Threat Level: Known bad
The file bf743b8e013bea9379fa79b76aeaaf99 was found to be: Known bad.
Malicious Activity Summary
Xloader
CustAttr .NET packer
Xloader payload
Suspicious use of SetThreadContext
Unsigned PE
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2023-12-28 03:20
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2023-12-28 03:20
Reported
2023-12-29 14:03
Platform
win7-20231215-en
Max time kernel
118s
Max time network
141s
Command Line
Signatures
Xloader
CustAttr .NET packer
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Xloader payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2500 set thread context of 2612 | N/A | C:\Users\Admin\AppData\Local\Temp\bf743b8e013bea9379fa79b76aeaaf99.exe | C:\Users\Admin\AppData\Local\Temp\bf743b8e013bea9379fa79b76aeaaf99.exe |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bf743b8e013bea9379fa79b76aeaaf99.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\bf743b8e013bea9379fa79b76aeaaf99.exe
"C:\Users\Admin\AppData\Local\Temp\bf743b8e013bea9379fa79b76aeaaf99.exe"
C:\Users\Admin\AppData\Local\Temp\bf743b8e013bea9379fa79b76aeaaf99.exe
"C:\Users\Admin\AppData\Local\Temp\bf743b8e013bea9379fa79b76aeaaf99.exe"
Network
Files
memory/2500-0-0x0000000000A80000-0x0000000000BB0000-memory.dmp
memory/2500-1-0x0000000073F80000-0x000000007466E000-memory.dmp
memory/2500-2-0x0000000004D60000-0x0000000004DA0000-memory.dmp
memory/2500-3-0x0000000000560000-0x0000000000572000-memory.dmp
memory/2500-4-0x0000000073F80000-0x000000007466E000-memory.dmp
memory/2500-5-0x0000000004D60000-0x0000000004DA0000-memory.dmp
memory/2500-6-0x0000000005540000-0x00000000055E0000-memory.dmp
memory/2500-7-0x0000000001FB0000-0x0000000001FDE000-memory.dmp
memory/2612-8-0x0000000000400000-0x0000000000428000-memory.dmp
memory/2612-10-0x0000000000400000-0x0000000000428000-memory.dmp
memory/2612-14-0x0000000000400000-0x0000000000428000-memory.dmp
memory/2612-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2500-15-0x0000000073F80000-0x000000007466E000-memory.dmp
memory/2612-16-0x0000000000BB0000-0x0000000000EB3000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-12-28 03:20
Reported
2023-12-29 14:02
Platform
win10v2004-20231215-en
Max time kernel
146s
Max time network
138s
Command Line
Signatures
Xloader
CustAttr .NET packer
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Xloader payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 456 set thread context of 1964 | N/A | C:\Users\Admin\AppData\Local\Temp\bf743b8e013bea9379fa79b76aeaaf99.exe | C:\Users\Admin\AppData\Local\Temp\bf743b8e013bea9379fa79b76aeaaf99.exe |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bf743b8e013bea9379fa79b76aeaaf99.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bf743b8e013bea9379fa79b76aeaaf99.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bf743b8e013bea9379fa79b76aeaaf99.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bf743b8e013bea9379fa79b76aeaaf99.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bf743b8e013bea9379fa79b76aeaaf99.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bf743b8e013bea9379fa79b76aeaaf99.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bf743b8e013bea9379fa79b76aeaaf99.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\bf743b8e013bea9379fa79b76aeaaf99.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\bf743b8e013bea9379fa79b76aeaaf99.exe
"C:\Users\Admin\AppData\Local\Temp\bf743b8e013bea9379fa79b76aeaaf99.exe"
C:\Users\Admin\AppData\Local\Temp\bf743b8e013bea9379fa79b76aeaaf99.exe
"C:\Users\Admin\AppData\Local\Temp\bf743b8e013bea9379fa79b76aeaaf99.exe"
C:\Users\Admin\AppData\Local\Temp\bf743b8e013bea9379fa79b76aeaaf99.exe
"C:\Users\Admin\AppData\Local\Temp\bf743b8e013bea9379fa79b76aeaaf99.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 146.78.124.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 181.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.181.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 205.47.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 59.128.231.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.136.104.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 119.110.54.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 100.5.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 32.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | udp | |
| US | 8.8.8.8:53 | udp | |
| US | 8.8.8.8:53 | udp | |
| N/A | 88.221.135.217:80 | tcp | |
| GB | 88.221.135.211:80 | tcp | |
| GB | 88.221.135.211:80 | tcp | |
| US | 8.8.8.8:53 | udp | |
| US | 8.8.8.8:53 | udp | |
| GB | 88.221.135.211:80 | tcp | |
| GB | 88.221.135.211:80 | tcp | |
| GB | 88.221.135.211:80 | tcp | |
| GB | 88.221.135.211:80 | tcp | |
| GB | 88.221.135.211:80 | tcp | |
| GB | 88.221.135.211:80 | tcp | |
| GB | 88.221.135.211:80 | tcp | |
| N/A | 52.142.223.178:80 | tcp | |
| GB | 88.221.135.211:80 | tcp | |
| GB | 88.221.135.211:80 | tcp | |
| GB | 88.221.135.211:80 | tcp | |
| GB | 88.221.135.211:80 | tcp | |
| GB | 88.221.135.211:80 | tcp | |
| GB | 88.221.135.211:80 | tcp | |
| GB | 88.221.135.211:80 | tcp | |
| GB | 88.221.135.211:80 | tcp | |
| GB | 88.221.135.211:80 | tcp | |
| GB | 88.221.135.211:80 | tcp | |
| GB | 88.221.135.211:80 | tcp | |
| GB | 88.221.135.211:80 | tcp | |
| GB | 88.221.135.211:80 | tcp | |
| GB | 88.221.135.211:80 | tcp | |
| GB | 88.221.135.211:80 | tcp | |
| GB | 88.221.135.211:80 | tcp | |
| US | 8.8.8.8:53 | udp | |
| GB | 87.248.205.0:80 | tcp | |
| GB | 87.248.205.0:80 | tcp | |
| US | 8.8.8.8:53 | udp | |
| US | 8.8.8.8:53 | udp | |
| N/A | 88.221.135.217:80 | tcp | |
| GB | 87.248.205.0:80 | tcp | |
| N/A | 88.221.135.217:80 | tcp | |
| US | 93.184.221.240:80 | tcp | |
| US | 8.8.8.8:53 | udp | |
| US | 52.111.227.11:443 | tcp | |
| US | 8.8.8.8:53 | udp | |
| US | 8.8.8.8:53 | udp | |
| US | 204.79.197.200:443 | tcp | |
| US | 204.79.197.200:443 | tcp | |
| US | 204.79.197.200:443 | tcp | |
| US | 204.79.197.200:443 | tcp | |
| US | 204.79.197.200:443 | tcp | |
| US | 8.8.8.8:53 | udp |
Files
memory/456-1-0x0000000074C40000-0x00000000753F0000-memory.dmp
memory/456-0-0x0000000000D50000-0x0000000000E80000-memory.dmp
memory/456-3-0x00000000058D0000-0x0000000005962000-memory.dmp
memory/456-2-0x0000000005E80000-0x0000000006424000-memory.dmp
memory/456-6-0x0000000005B30000-0x0000000005BCC000-memory.dmp
memory/456-5-0x0000000005880000-0x000000000588A000-memory.dmp
memory/456-4-0x0000000005A80000-0x0000000005A90000-memory.dmp
memory/456-7-0x00000000058A0000-0x00000000058B2000-memory.dmp
memory/456-8-0x0000000074C40000-0x00000000753F0000-memory.dmp
memory/456-9-0x0000000005A80000-0x0000000005A90000-memory.dmp
memory/456-10-0x0000000006980000-0x0000000006A20000-memory.dmp
memory/456-11-0x0000000008E00000-0x0000000008E2E000-memory.dmp
memory/1964-12-0x0000000000400000-0x0000000000428000-memory.dmp
memory/1964-15-0x0000000001800000-0x0000000001B4A000-memory.dmp
memory/456-14-0x0000000074C40000-0x00000000753F0000-memory.dmp
memory/1964-16-0x0000000001800000-0x0000000001B4A000-memory.dmp