Analysis Overview
SHA256
ac272d1676605d52500d4b71bbae5d4c9a42b980649e333b8276ef63fd3d4016
Threat Level: Shows suspicious behavior
The file ac272d1676605d52500d4b71bbae5d4c9a42b980649e333b8276ef63fd3d4016N was found to be: Shows suspicious behavior.
Malicious Activity Summary
Deletes itself
Executes dropped EXE
Adds Run key to start application
Drops file in Windows directory
System Location Discovery: System Language Discovery
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-10 01:23
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-10 01:23
Reported
2024-11-10 01:25
Platform
win7-20241010-en
Max time kernel
120s
Max time network
19s
Command Line
Signatures
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\microsofthelp.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\microsofthelp.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" | C:\Users\Admin\AppData\Local\Temp\ac272d1676605d52500d4b71bbae5d4c9a42b980649e333b8276ef63fd3d4016N.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\microsofthelp.exe | C:\Users\Admin\AppData\Local\Temp\ac272d1676605d52500d4b71bbae5d4c9a42b980649e333b8276ef63fd3d4016N.exe | N/A |
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\ac272d1676605d52500d4b71bbae5d4c9a42b980649e333b8276ef63fd3d4016N.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2044 wrote to memory of 2536 | N/A | C:\Users\Admin\AppData\Local\Temp\ac272d1676605d52500d4b71bbae5d4c9a42b980649e333b8276ef63fd3d4016N.exe | C:\Windows\microsofthelp.exe |
| PID 2044 wrote to memory of 2536 | N/A | C:\Users\Admin\AppData\Local\Temp\ac272d1676605d52500d4b71bbae5d4c9a42b980649e333b8276ef63fd3d4016N.exe | C:\Windows\microsofthelp.exe |
| PID 2044 wrote to memory of 2536 | N/A | C:\Users\Admin\AppData\Local\Temp\ac272d1676605d52500d4b71bbae5d4c9a42b980649e333b8276ef63fd3d4016N.exe | C:\Windows\microsofthelp.exe |
| PID 2044 wrote to memory of 2536 | N/A | C:\Users\Admin\AppData\Local\Temp\ac272d1676605d52500d4b71bbae5d4c9a42b980649e333b8276ef63fd3d4016N.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\ac272d1676605d52500d4b71bbae5d4c9a42b980649e333b8276ef63fd3d4016N.exe
"C:\Users\Admin\AppData\Local\Temp\ac272d1676605d52500d4b71bbae5d4c9a42b980649e333b8276ef63fd3d4016N.exe"
C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.exe"
Network
Files
memory/2044-0-0x0000000000400000-0x0000000000403000-memory.dmp
memory/2536-8-0x0000000000400000-0x0000000000403000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | 1de3941fbd88b8f8ff21ff9993269bf6 |
| SHA1 | db51f739c825201becf899834ab2ad73dbf14e37 |
| SHA256 | b7a2601b7cfb2499f8ef6197ef73603ad1a6a89b6884375ca63354217ec22bae |
| SHA512 | 2258679f9108bd573c529c1302ec0ac7fb3ffba0263a01ee7f72545efc04a7566d0ce0c8a95d940a5bb95a0113f376947cce9692bd56a89e7e9f348d0805c85b |
memory/2044-6-0x0000000000400000-0x0000000000403000-memory.dmp
memory/2536-10-0x0000000000400000-0x0000000000403000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-10 01:23
Reported
2024-11-10 01:25
Platform
win10v2004-20241007-en
Max time kernel
120s
Max time network
96s
Command Line
Signatures
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\microsofthelp.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\microsofthelp.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" | C:\Users\Admin\AppData\Local\Temp\ac272d1676605d52500d4b71bbae5d4c9a42b980649e333b8276ef63fd3d4016N.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\microsofthelp.exe | C:\Users\Admin\AppData\Local\Temp\ac272d1676605d52500d4b71bbae5d4c9a42b980649e333b8276ef63fd3d4016N.exe | N/A |
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\ac272d1676605d52500d4b71bbae5d4c9a42b980649e333b8276ef63fd3d4016N.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\microsofthelp.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 5076 wrote to memory of 4192 | N/A | C:\Users\Admin\AppData\Local\Temp\ac272d1676605d52500d4b71bbae5d4c9a42b980649e333b8276ef63fd3d4016N.exe | C:\Windows\microsofthelp.exe |
| PID 5076 wrote to memory of 4192 | N/A | C:\Users\Admin\AppData\Local\Temp\ac272d1676605d52500d4b71bbae5d4c9a42b980649e333b8276ef63fd3d4016N.exe | C:\Windows\microsofthelp.exe |
| PID 5076 wrote to memory of 4192 | N/A | C:\Users\Admin\AppData\Local\Temp\ac272d1676605d52500d4b71bbae5d4c9a42b980649e333b8276ef63fd3d4016N.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\ac272d1676605d52500d4b71bbae5d4c9a42b980649e333b8276ef63fd3d4016N.exe
"C:\Users\Admin\AppData\Local\Temp\ac272d1676605d52500d4b71bbae5d4c9a42b980649e333b8276ef63fd3d4016N.exe"
C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.32.126.40.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 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 98.117.19.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
Files
memory/5076-0-0x0000000000400000-0x0000000000403000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | 1de3941fbd88b8f8ff21ff9993269bf6 |
| SHA1 | db51f739c825201becf899834ab2ad73dbf14e37 |
| SHA256 | b7a2601b7cfb2499f8ef6197ef73603ad1a6a89b6884375ca63354217ec22bae |
| SHA512 | 2258679f9108bd573c529c1302ec0ac7fb3ffba0263a01ee7f72545efc04a7566d0ce0c8a95d940a5bb95a0113f376947cce9692bd56a89e7e9f348d0805c85b |
memory/5076-5-0x0000000000400000-0x0000000000403000-memory.dmp
memory/4192-6-0x0000000000400000-0x0000000000403000-memory.dmp