Analysis Overview
SHA256
8f72d46efcdeb6a82eade69cde0492916191d3802a38872c57be9d59009101a7
Threat Level: Shows suspicious behavior
The file b2513ad2f69e95139b51cd2da8c09064 was found to be: Shows suspicious behavior.
Malicious Activity Summary
Executes dropped EXE
Checks computer location settings
Loads dropped DLL
Adds Run key to start application
Enumerates physical storage devices
Unsigned PE
Program crash
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Modifies registry key
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-03-04 14:06
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-03-04 14:06
Reported
2024-03-04 14:08
Platform
win7-20240221-en
Max time kernel
142s
Max time network
123s
Command Line
Signatures
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\usnscv.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b2513ad2f69e95139b51cd2da8c09064.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b2513ad2f69e95139b51cd2da8c09064.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\usnscv.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\ctfmon = "\"C:\\Users\\Admin\\AppData\\Local\\usnscv.exe\"" | C:\Windows\SysWOW64\reg.exe | N/A |
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\usnscv.exe |
Modifies registry key
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\reg.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\usnscv.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\usnscv.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\b2513ad2f69e95139b51cd2da8c09064.exe
"C:\Users\Admin\AppData\Local\Temp\b2513ad2f69e95139b51cd2da8c09064.exe"
C:\Users\Admin\AppData\Local\usnscv.exe
"C:\Users\Admin\AppData\Local\usnscv.exe"
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\winupdate.bat" "
C:\Windows\SysWOW64\cmd.exe
cmd /c REG ADD HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /V ctfmon /D "\"C:\Users\Admin\AppData\Local\usnscv.exe\"" /f
C:\Windows\SysWOW64\reg.exe
REG ADD HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /V ctfmon /D "\"C:\Users\Admin\AppData\Local\usnscv.exe\"" /f
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1292 -s 600
Network
| Country | Destination | Domain | Proto |
| US | 174.138.160.18:80 | tcp |
Files
memory/1152-0-0x0000000000220000-0x0000000000221000-memory.dmp
\Users\Admin\AppData\Local\usnscv.exe
| MD5 | 027905218f9a0db3f92e33de4eb30b31 |
| SHA1 | da5e3fb607c31cf125ec9dd61b5504c845d5ca7a |
| SHA256 | 94b41ed321c207eeea31a86f606fcd26b26bb26a88bd81b761cdf27b0b90deea |
| SHA512 | 46f55d671a4d468b6ee61a5c4bf8465ca941342f95fed0f60636a535d259e83ee2d98a4fb673f9b95cf6ddb8bd61bbe9b72cf55c6f6e18201a39181b82b2743d |
memory/1152-11-0x0000000004000000-0x0000000004110000-memory.dmp
memory/1292-14-0x0000000000020000-0x0000000000037000-memory.dmp
\Users\Admin\AppData\Local\sysinf.dll
| MD5 | ba190ef2c7ede61ef4459947f92689a7 |
| SHA1 | 0972e154a52f86a8126b1f79575b888ab63e5b13 |
| SHA256 | d06c7c0f8810a75e92b2654a2f2b54d35b1a1cf8c92ea0ef1320630f1b736424 |
| SHA512 | e68efb700614476abfcd0e503f1a142ee8b8ba761bb1467f7c58e21fb38a1e00d4bb0005eb85f93d0845b9d3f2344e0d32c1c5cebfa79610649213162f646626 |
memory/1292-15-0x0000000000250000-0x0000000000251000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\winupdate.bat
| MD5 | 6f893fa27049e87617787e4964ad5ecb |
| SHA1 | 2efa3418e797e4d5ced66044eff405cb2f93060c |
| SHA256 | a9912cc06ab8465ecbf27c5b6887ba94421e213d1fff1467ee1d8f20a72f0b60 |
| SHA512 | 08188fd11947612212701c3fffc253bb69530091115cf6c59650ed70851a8b56b5508cf458df9e742956144be1b3738560a33871a4be782798a63f04b7dae57f |
memory/1292-25-0x0000000000400000-0x0000000000498000-memory.dmp
memory/1292-26-0x0000000000020000-0x0000000000037000-memory.dmp
memory/1292-33-0x0000000000400000-0x0000000000498000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-04 14:06
Reported
2024-03-04 14:08
Platform
win10v2004-20240226-en
Max time kernel
119s
Max time network
156s
Command Line
Signatures
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1904519900-954640453-4250331663-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\b2513ad2f69e95139b51cd2da8c09064.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-1904519900-954640453-4250331663-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\usnscv.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\usnscv.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\usnscv.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\usnscv.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1904519900-954640453-4250331663-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ctfmon = "\"C:\\Users\\Admin\\AppData\\Local\\usnscv.exe\"" | C:\Windows\SysWOW64\reg.exe | N/A |
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\usnscv.exe |
Modifies registry key
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\reg.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\usnscv.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\usnscv.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\usnscv.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\b2513ad2f69e95139b51cd2da8c09064.exe
"C:\Users\Admin\AppData\Local\Temp\b2513ad2f69e95139b51cd2da8c09064.exe"
C:\Users\Admin\AppData\Local\usnscv.exe
"C:\Users\Admin\AppData\Local\usnscv.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\winupdate.bat" "
C:\Windows\SysWOW64\cmd.exe
cmd /c REG ADD HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /V ctfmon /D "\"C:\Users\Admin\AppData\Local\usnscv.exe\"" /f
C:\Windows\SysWOW64\reg.exe
REG ADD HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /V ctfmon /D "\"C:\Users\Admin\AppData\Local\usnscv.exe\"" /f
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2384 -ip 2384
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2384 -s 744
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4384 --field-trial-handle=2972,i,4036376905309803364,5412922217215781933,262144 --variations-seed-version /prefetch:8
Network
| Country | Destination | Domain | Proto |
| US | 138.91.171.81:80 | tcp | |
| US | 8.8.8.8:53 | 73.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 194.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 174.138.160.18:80 | tcp | |
| US | 8.8.8.8:53 | 30.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | chromewebstore.googleapis.com | udp |
| US | 8.8.8.8:53 | chromewebstore.googleapis.com | udp |
| GB | 172.217.169.42:443 | chromewebstore.googleapis.com | tcp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 42.169.217.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 81.171.91.138.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 175.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.205.248.87.in-addr.arpa | udp |
Files
memory/1912-0-0x00000000021A0000-0x00000000021A1000-memory.dmp
C:\Users\Admin\AppData\Local\usnscv.exe
| MD5 | 027905218f9a0db3f92e33de4eb30b31 |
| SHA1 | da5e3fb607c31cf125ec9dd61b5504c845d5ca7a |
| SHA256 | 94b41ed321c207eeea31a86f606fcd26b26bb26a88bd81b761cdf27b0b90deea |
| SHA512 | 46f55d671a4d468b6ee61a5c4bf8465ca941342f95fed0f60636a535d259e83ee2d98a4fb673f9b95cf6ddb8bd61bbe9b72cf55c6f6e18201a39181b82b2743d |
memory/1912-10-0x0000000004000000-0x0000000004110000-memory.dmp
C:\Users\Admin\AppData\Local\sysinf.dll
| MD5 | ba190ef2c7ede61ef4459947f92689a7 |
| SHA1 | 0972e154a52f86a8126b1f79575b888ab63e5b13 |
| SHA256 | d06c7c0f8810a75e92b2654a2f2b54d35b1a1cf8c92ea0ef1320630f1b736424 |
| SHA512 | e68efb700614476abfcd0e503f1a142ee8b8ba761bb1467f7c58e21fb38a1e00d4bb0005eb85f93d0845b9d3f2344e0d32c1c5cebfa79610649213162f646626 |
memory/2384-14-0x00000000005E0000-0x00000000005F7000-memory.dmp
memory/2384-15-0x00000000006B0000-0x00000000006B1000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\winupdate.bat
| MD5 | 6f893fa27049e87617787e4964ad5ecb |
| SHA1 | 2efa3418e797e4d5ced66044eff405cb2f93060c |
| SHA256 | a9912cc06ab8465ecbf27c5b6887ba94421e213d1fff1467ee1d8f20a72f0b60 |
| SHA512 | 08188fd11947612212701c3fffc253bb69530091115cf6c59650ed70851a8b56b5508cf458df9e742956144be1b3738560a33871a4be782798a63f04b7dae57f |
memory/2384-20-0x0000000000400000-0x0000000000498000-memory.dmp
memory/2384-21-0x00000000005E0000-0x00000000005F7000-memory.dmp
memory/2384-24-0x0000000000400000-0x0000000000498000-memory.dmp
memory/2384-25-0x00000000005E0000-0x00000000005F7000-memory.dmp