Analysis Overview
SHA256
820fcad3d970954972fcaf48d71d0bd158d08a1c82f97613fd2eace760e3513c
Threat Level: Shows suspicious behavior
The file 820fcad3d970954972fcaf48d71d0bd158d08a1c82f97613fd2eace760e3513cN.exe was found to be: Shows suspicious behavior.
Malicious Activity Summary
Loads dropped DLL
Checks computer location settings
Deletes itself
Executes dropped EXE
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 23:54
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 23:54
Reported
2024-11-13 23:56
Platform
win7-20241010-en
Max time kernel
31s
Max time network
25s
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\820fcad3d970954972fcaf48d71d0bd158d08a1c82f97613fd2eace760e3513cN.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\820fcad3d970954972fcaf48d71d0bd158d08a1c82f97613fd2eace760e3513cN.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:\windows\SysWOW64\cmd.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\820fcad3d970954972fcaf48d71d0bd158d08a1c82f97613fd2eace760e3513cN.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\ProgramData\Update\wuauclt.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\820fcad3d970954972fcaf48d71d0bd158d08a1c82f97613fd2eace760e3513cN.exe
"C:\Users\Admin\AppData\Local\Temp\820fcad3d970954972fcaf48d71d0bd158d08a1c82f97613fd2eace760e3513cN.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\820fcad3d970954972fcaf48d71d0bd158d08a1c82f97613fd2eace760e3513cN.exe" >> NUL
Network
| Country | Destination | Domain | Proto |
| CA | 158.69.115.115:443 | tcp |
Files
memory/2580-0-0x00000000000D0000-0x00000000000F8000-memory.dmp
memory/2580-4-0x0000000000080000-0x00000000000A8000-memory.dmp
\ProgramData\Update\wuauclt.exe
| MD5 | d67b9e5b8656504db8ecb4c4c18a6609 |
| SHA1 | ece0cc127cbd4b23268602842ef2cf0b406aa8a1 |
| SHA256 | 78f78a7b6b1570b9c2e16feb0dfb6fc88740580e6ddc267999e00de1f368563d |
| SHA512 | fe9bb3b03cd586d6674cd9626410dfd05dc923659b1e4d65df6bad9310e28bd68da90e7f59521255ed36004c0bd2ed697d43951bf6d1dad27c5d988d66bed589 |
memory/2580-7-0x00000000000D0000-0x00000000000F8000-memory.dmp
memory/2904-8-0x00000000003F0000-0x0000000000418000-memory.dmp
memory/2580-9-0x00000000000D0000-0x00000000000F8000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-13 23:54
Reported
2024-11-13 23:56
Platform
win10v2004-20241007-en
Max time kernel
95s
Max time network
97s
Command Line
Signatures
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\820fcad3d970954972fcaf48d71d0bd158d08a1c82f97613fd2eace760e3513cN.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\820fcad3d970954972fcaf48d71d0bd158d08a1c82f97613fd2eace760e3513cN.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\820fcad3d970954972fcaf48d71d0bd158d08a1c82f97613fd2eace760e3513cN.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\820fcad3d970954972fcaf48d71d0bd158d08a1c82f97613fd2eace760e3513cN.exe
"C:\Users\Admin\AppData\Local\Temp\820fcad3d970954972fcaf48d71d0bd158d08a1c82f97613fd2eace760e3513cN.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\820fcad3d970954972fcaf48d71d0bd158d08a1c82f97613fd2eace760e3513cN.exe" >> NUL
Network
| Country | Destination | Domain | Proto |
| CA | 158.69.115.115:443 | tcp | |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 76.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 53.210.109.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.144.22.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 81.144.22.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
Files
memory/4748-0-0x0000000000AB0000-0x0000000000AD8000-memory.dmp
C:\ProgramData\Update\wuauclt.exe
| MD5 | 39d1a84ea413c8aa865f41b07a25b7c2 |
| SHA1 | 7f96dab3cf8a36465428fc2dd0e5fcc04e7ede99 |
| SHA256 | 6836d0636bcbc50d23e789cf4decc0c6f665a1af3131e96af889286485a7160c |
| SHA512 | 557c2b14a459b136e85fe4d20f6e258f0e485b4a3cb155902ce723e8dd579ab39920ba7f9576a46a123e43ee9207c698c91a8363a830d848aefe6b14bdb10fb5 |
memory/4236-4-0x0000000000B90000-0x0000000000BB8000-memory.dmp
memory/4748-6-0x0000000000AB0000-0x0000000000AD8000-memory.dmp
memory/4236-7-0x0000000000B90000-0x0000000000BB8000-memory.dmp
memory/4748-8-0x0000000000AB0000-0x0000000000AD8000-memory.dmp