Analysis Overview
SHA256
581a5da18e77e9628dabe056ba4e854f7b4a96125f27091f009c31298cb1390e
Threat Level: Shows suspicious behavior
The file 581a5da18e77e9628dabe056ba4e854f7b4a96125f27091f009c31298cb1390eN.exe was found to be: Shows suspicious behavior.
Malicious Activity Summary
Executes dropped EXE
Deletes itself
Loads dropped DLL
Checks computer location settings
Adds Run key to start application
Indicator Removal: File Deletion
UPX packed file
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-13 06:45
Signatures
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-13 06:45
Reported
2024-11-13 06:47
Platform
win7-20240903-en
Max time kernel
30s
Max time network
23s
Command Line
Signatures
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\windows\SysWOW64\cmd.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\ProgramData\Update\wuauclt.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\581a5da18e77e9628dabe056ba4e854f7b4a96125f27091f009c31298cb1390eN.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Window Update = "\"C:\\ProgramData\\Update\\wuauclt.exe\" /run" | C:\Users\Admin\AppData\Local\Temp\581a5da18e77e9628dabe056ba4e854f7b4a96125f27091f009c31298cb1390eN.exe | N/A |
Indicator Removal: File Deletion
UPX packed file
| 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 |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Enumerates physical storage devices
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\581a5da18e77e9628dabe056ba4e854f7b4a96125f27091f009c31298cb1390eN.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\ProgramData\Update\wuauclt.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\windows\SysWOW64\cmd.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\581a5da18e77e9628dabe056ba4e854f7b4a96125f27091f009c31298cb1390eN.exe
"C:\Users\Admin\AppData\Local\Temp\581a5da18e77e9628dabe056ba4e854f7b4a96125f27091f009c31298cb1390eN.exe"
C:\ProgramData\Update\wuauclt.exe
"C:\ProgramData\Update\wuauclt.exe" /run
C:\windows\SysWOW64\cmd.exe
"C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\581a5da18e77e9628dabe056ba4e854f7b4a96125f27091f009c31298cb1390eN.exe" >> NUL
Network
| Country | Destination | Domain | Proto |
| CA | 158.69.115.115:443 | tcp |
Files
memory/2316-0-0x0000000001280000-0x00000000012A8000-memory.dmp
\ProgramData\Update\wuauclt.exe
| MD5 | 4a61ce186136455ec2f204db100ee699 |
| SHA1 | 8d3b9a4dab75585cf548c98b66f11589a066bcf9 |
| SHA256 | f46a3eb0a3f5a0c40984cd64c006ef49809b9c121fabb058a9b49039d6501ae5 |
| SHA512 | 988f293c875d57a5dd678a9e5b62b9d636e8f7b1fe6af9ccb1a90e931adcb0110030051b81a0f3b0eed08eba312c1ebf52c831382065efa03de9d9a8f1a5c64e |
memory/2316-4-0x00000000000C0000-0x00000000000E8000-memory.dmp
memory/2316-7-0x0000000001280000-0x00000000012A8000-memory.dmp
memory/2696-8-0x0000000001310000-0x0000000001338000-memory.dmp
memory/2316-9-0x0000000001280000-0x00000000012A8000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-13 06:45
Reported
2024-11-13 06:47
Platform
win10v2004-20241007-en
Max time kernel
94s
Max time network
95s
Command Line
Signatures
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\581a5da18e77e9628dabe056ba4e854f7b4a96125f27091f009c31298cb1390eN.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\ProgramData\Update\wuauclt.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Window Update = "\"C:\\ProgramData\\Update\\wuauclt.exe\" /run" | C:\Users\Admin\AppData\Local\Temp\581a5da18e77e9628dabe056ba4e854f7b4a96125f27091f009c31298cb1390eN.exe | N/A |
Indicator Removal: File Deletion
UPX packed file
| 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 |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Enumerates physical storage devices
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\581a5da18e77e9628dabe056ba4e854f7b4a96125f27091f009c31298cb1390eN.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\ProgramData\Update\wuauclt.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\windows\SysWOW64\cmd.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\581a5da18e77e9628dabe056ba4e854f7b4a96125f27091f009c31298cb1390eN.exe
"C:\Users\Admin\AppData\Local\Temp\581a5da18e77e9628dabe056ba4e854f7b4a96125f27091f009c31298cb1390eN.exe"
C:\ProgramData\Update\wuauclt.exe
"C:\ProgramData\Update\wuauclt.exe" /run
C:\windows\SysWOW64\cmd.exe
"C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\581a5da18e77e9628dabe056ba4e854f7b4a96125f27091f009c31298cb1390eN.exe" >> NUL
Network
| Country | Destination | Domain | Proto |
| CA | 158.69.115.115:443 | tcp | |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 83.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.163.245.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.117.19.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 67.209.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 48.229.111.52.in-addr.arpa | udp |
Files
memory/4168-0-0x0000000000140000-0x0000000000168000-memory.dmp
C:\ProgramData\Update\wuauclt.exe
| MD5 | 962c8d656619336bd95c138375d0df51 |
| SHA1 | 1d7740bdc1778090b1b5fe542e0b6c32678a2627 |
| SHA256 | ba92a2f511bfdce39125b6d06734384b204854600f9c3ba21bdf52f63e6942a2 |
| SHA512 | 1abc60962653f49c6726d05fb47492dafbed09bbce6702ad1a5ec7096c958a12a22d3c64fbe8f26376d7ed7ccc140106dfea3b560f99de6601b29a0fe2131591 |
memory/4200-4-0x0000000000B90000-0x0000000000BB8000-memory.dmp
memory/4168-6-0x0000000000140000-0x0000000000168000-memory.dmp
memory/4200-7-0x0000000000B90000-0x0000000000BB8000-memory.dmp
memory/4168-8-0x0000000000140000-0x0000000000168000-memory.dmp