Analysis Overview
SHA256
6f6ee24d416bffaefa0123fcc822ac8c66f44d4daa0aba3e19fb5802bfed9664
Threat Level: Known bad
The file fd71ee51243b06f2f30b83e9eda0a85d was found to be: Known bad.
Malicious Activity Summary
PureCrypter
Purecrypter family
Aurora family
Executes dropped EXE
Adds Run key to start application
Unsigned PE
Program crash
System Location Discovery: System Language Discovery
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-08 08:23
Signatures
Aurora family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Analysis: behavioral3
Detonation Overview
Submitted
2024-11-08 08:23
Reported
2024-11-08 08:25
Platform
win7-20241010-en
Max time kernel
15s
Max time network
20s
Command Line
Signatures
Processes
C:\Users\Admin\AppData\Local\Temp\5b198d1272b07fa5c8880604f17a4d65.exe
"C:\Users\Admin\AppData\Local\Temp\5b198d1272b07fa5c8880604f17a4d65.exe"
Network
Files
Analysis: behavioral4
Detonation Overview
Submitted
2024-11-08 08:23
Reported
2024-11-08 08:25
Platform
win10v2004-20241007-en
Max time kernel
93s
Max time network
136s
Command Line
Signatures
Processes
C:\Users\Admin\AppData\Local\Temp\5b198d1272b07fa5c8880604f17a4d65.exe
"C:\Users\Admin\AppData\Local\Temp\5b198d1272b07fa5c8880604f17a4d65.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 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 20.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 212.20.149.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.117.19.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
Files
Analysis: behavioral5
Detonation Overview
Submitted
2024-11-08 08:23
Reported
2024-11-08 08:25
Platform
win10v2004-20241007-en
Max time kernel
91s
Max time network
141s
Command Line
Signatures
PureCrypter
Purecrypter family
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\SETUP_~1.EXE | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\"" | C:\Users\Admin\AppData\Local\Temp\7d41dd6194db2b9b1514ad154451bb7a.exe | N/A |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\SETUP_~1.EXE |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\SETUP_~1.EXE | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\SETUP_~1.EXE | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 388 wrote to memory of 656 | N/A | C:\Users\Admin\AppData\Local\Temp\7d41dd6194db2b9b1514ad154451bb7a.exe | C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\SETUP_~1.EXE |
| PID 388 wrote to memory of 656 | N/A | C:\Users\Admin\AppData\Local\Temp\7d41dd6194db2b9b1514ad154451bb7a.exe | C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\SETUP_~1.EXE |
| PID 388 wrote to memory of 656 | N/A | C:\Users\Admin\AppData\Local\Temp\7d41dd6194db2b9b1514ad154451bb7a.exe | C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\SETUP_~1.EXE |
Processes
C:\Users\Admin\AppData\Local\Temp\7d41dd6194db2b9b1514ad154451bb7a.exe
"C:\Users\Admin\AppData\Local\Temp\7d41dd6194db2b9b1514ad154451bb7a.exe"
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\SETUP_~1.EXE
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\SETUP_~1.EXE
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 656 -ip 656
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 656 -s 1676
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 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | megalinkbj.com.br | udp |
| US | 162.250.125.14:443 | megalinkbj.com.br | tcp |
| US | 8.8.8.8:53 | 2.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.125.250.162.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.163.202.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 98.117.19.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 83.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 19.229.111.52.in-addr.arpa | udp |
Files
memory/656-5-0x00000000752CE000-0x00000000752CF000-memory.dmp
memory/656-6-0x00000000002A0000-0x00000000002A8000-memory.dmp
memory/656-7-0x00000000752C0000-0x0000000075A70000-memory.dmp
memory/656-8-0x00000000752C0000-0x0000000075A70000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-08 08:23
Reported
2024-11-08 08:25
Platform
win7-20240903-en
Max time kernel
133s
Max time network
143s
Command Line
Signatures
Processes
C:\Users\Admin\AppData\Local\Temp\2870a473e49673e2f6feb3d6e0792de6.exe
"C:\Users\Admin\AppData\Local\Temp\2870a473e49673e2f6feb3d6e0792de6.exe"
Network
| Country | Destination | Domain | Proto |
| NL | 217.195.155.154:8081 | tcp | |
| NL | 217.195.155.154:8081 | tcp | |
| NL | 217.195.155.154:8081 | tcp | |
| NL | 217.195.155.154:8081 | tcp | |
| NL | 217.195.155.154:8081 | tcp | |
| NL | 217.195.155.154:8081 | tcp | |
| NL | 217.195.155.154:8081 | tcp |
Files
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-08 08:23
Reported
2024-11-08 08:25
Platform
win10v2004-20241007-en
Max time kernel
133s
Max time network
149s
Command Line
Signatures
Processes
C:\Users\Admin\AppData\Local\Temp\2870a473e49673e2f6feb3d6e0792de6.exe
"C:\Users\Admin\AppData\Local\Temp\2870a473e49673e2f6feb3d6e0792de6.exe"
Network
| Country | Destination | Domain | Proto |
| NL | 217.195.155.154:8081 | tcp | |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 67.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| NL | 217.195.155.154:8081 | tcp | |
| US | 8.8.8.8:53 | 197.87.175.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 98.117.19.2.in-addr.arpa | udp |
| NL | 217.195.155.154:8081 | tcp | |
| NL | 217.195.155.154:8081 | tcp | |
| NL | 217.195.155.154:8081 | tcp | |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
| NL | 217.195.155.154:8081 | tcp | |
| NL | 217.195.155.154:8081 | tcp |