Analysis Overview
SHA256
769863ec7ba1e28a77c7cc0bda19bb79e6869cae63ecdfab97c669fc40348a0c
Threat Level: Known bad
The file d369b0abb477bed3cda7ee99b203d45d was found to be: Known bad.
Malicious Activity Summary
PlugX
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Adds Run key to start application
Enumerates physical storage devices
Unsigned PE
NSIS installer
Suspicious use of WriteProcessMemory
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-03-18 11:37
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
NSIS installer
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-18 11:37
Reported
2024-03-18 11:40
Platform
win10v2004-20240226-en
Max time kernel
148s
Max time network
154s
Command Line
Signatures
PlugX
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation | \??\c:\windows\temp\avg.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | \??\c:\windows\temp\avg.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\arpa.exe | N/A |
| N/A | N/A | C:\ProgramData\ESET Malware ProtectionLYo\unsecapp.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\arpa.exe | N/A |
| N/A | N/A | C:\ProgramData\ESET Malware ProtectionLYo\unsecapp.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ESET Malware ProtectionLYo = "\"C:\\ProgramData\\ESET Malware ProtectionLYo\\unsecapp.exe\" -app" | C:\Users\Admin\AppData\Local\Temp\arpa.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ESET Malware ProtectionLYo = "\"C:\\ProgramData\\ESET Malware ProtectionLYo\\unsecapp.exe\" -app" | C:\Users\Admin\AppData\Local\Temp\arpa.exe | N/A |
Enumerates physical storage devices
NSIS installer
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\d369b0abb477bed3cda7ee99b203d45d.exe
"C:\Users\Admin\AppData\Local\Temp\d369b0abb477bed3cda7ee99b203d45d.exe"
\??\c:\windows\temp\avg.exe
c:\windows\temp\avg.exe
C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\System32\rundll32.exe" url.dll, FileProtocolHandler C:\Users\Admin\AppData\Local\Temp\arpa.exe
C:\Users\Admin\AppData\Local\Temp\arpa.exe
"C:\Users\Admin\AppData\Local\Temp\arpa.exe"
C:\ProgramData\ESET Malware ProtectionLYo\unsecapp.exe
"C:\ProgramData\ESET Malware ProtectionLYo\unsecapp.exe" -app
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=4160 --field-trial-handle=2304,i,6987730730348465820,3913273227385401271,262144 --variations-seed-version /prefetch:8
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 79.121.231.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.177.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 35.56.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.200:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| CN | 45.248.87.140:443 | tcp | |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 13.107.253.64:443 | tcp | |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| GB | 172.217.169.74:443 | tcp | |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| CN | 45.248.87.140:443 | tcp | |
| US | 8.8.8.8:53 | 175.178.17.96.in-addr.arpa | udp |
| CN | 45.248.87.140:443 | tcp | |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
| CN | 45.248.87.140:443 | tcp | |
| US | 8.8.8.8:53 | 205.47.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| CN | 45.248.87.140:443 | tcp | |
| US | 8.8.8.8:53 | 152.141.79.40.in-addr.arpa | udp |
Files
C:\Windows\Temp\avg.exe
| MD5 | fba356748c02da7a65ddef9470aa1cf2 |
| SHA1 | e0e3b538d015b1eb06a8a663bc746a36c3cc5848 |
| SHA256 | 792eba5ba91a52bfb3b369107f38fb9a7e7b7987cd870f465338eae59e81f3f6 |
| SHA512 | f626824b33ea03f690500058c73ba662a1363535f80e7b05149dc8b580bd6bf514b334f3509283933993d0947b254c30cb6ddbf7be99d53de471997a2ef2f71d |
C:\Users\Admin\AppData\Local\Temp\arpa.exe
| MD5 | 28c6f235946fd694d2634c7a2f24c1ba |
| SHA1 | e9a9ce1ff07834d6ba9a51ba0d9e7c7a0b68d3e5 |
| SHA256 | c3159d4f85ceb84c4a0f7ea9208928e729a30ddda4fead7ec6257c7dd1984763 |
| SHA512 | 16865c473e010950a2aa25263af70074ad7539a86dc20e0a253df39e54e3635e99e821d4df83cd7a0eaeff10c75782966439d16d056427e824be8df953e138be |
C:\Users\Admin\AppData\Local\Temp\http_dll.dll
| MD5 | 5b92266d9a26260b4c9920ede267ba37 |
| SHA1 | 372d5455fdb689787e7e49f7799510c6c2cdf6b7 |
| SHA256 | d3c41834ea1a05eb19b6012a9c0c4a2dd9df243af0df56885edabedfe3fea261 |
| SHA512 | db9b277d74d1c50b8580b8dbeef1f5c3f54a6cf436a95c658bf7b8201d48ed651400fdde84d7297abf7f71b1f8f2bf335716833e564fa25cf10483b5f8766ec5 |
C:\Users\Admin\AppData\Local\Temp\http_dll.dat
| MD5 | 27a4ed145a9a6cb41af09b8927fd5bee |
| SHA1 | 815be32e1ae7ec20621e87239a6279fbba2fc8b5 |
| SHA256 | 3fbbf30015b64b50912c09c43052ac48b1983e869cebfb88dd1271fcb4e60d10 |
| SHA512 | 2978496330e0dcfafad6b9186181febe4af28cb7bec227bfab3f0be711e5160b96692a9752e260bf585abc0a5d481bd4d408ead88e0e2973552e4abb934107a8 |
memory/3908-15-0x0000000001590000-0x0000000001690000-memory.dmp
memory/3908-14-0x0000000001520000-0x0000000001540000-memory.dmp
memory/4568-26-0x0000000000E20000-0x0000000000E40000-memory.dmp
memory/4568-27-0x0000000000E90000-0x0000000000F90000-memory.dmp
memory/4568-28-0x0000000000E90000-0x0000000000F90000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-03-18 11:37
Reported
2024-03-18 11:40
Platform
win7-20231129-en
Max time kernel
149s
Max time network
149s
Command Line
Signatures
PlugX
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | \??\c:\windows\temp\avg.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\arpa.exe | N/A |
| N/A | N/A | C:\ProgramData\ESET Malware ProtectionLYo\unsecapp.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\d369b0abb477bed3cda7ee99b203d45d.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\arpa.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\arpa.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\arpa.exe | N/A |
| N/A | N/A | C:\ProgramData\ESET Malware ProtectionLYo\unsecapp.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ESET Malware ProtectionLYo = "\"C:\\ProgramData\\ESET Malware ProtectionLYo\\unsecapp.exe\" -app" | C:\Users\Admin\AppData\Local\Temp\arpa.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\ESET Malware ProtectionLYo = "\"C:\\ProgramData\\ESET Malware ProtectionLYo\\unsecapp.exe\" -app" | C:\Users\Admin\AppData\Local\Temp\arpa.exe | N/A |
Enumerates physical storage devices
NSIS installer
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\d369b0abb477bed3cda7ee99b203d45d.exe
"C:\Users\Admin\AppData\Local\Temp\d369b0abb477bed3cda7ee99b203d45d.exe"
\??\c:\windows\temp\avg.exe
c:\windows\temp\avg.exe
C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\System32\rundll32.exe" url.dll, FileProtocolHandler C:\Users\Admin\AppData\Local\Temp\arpa.exe
C:\Users\Admin\AppData\Local\Temp\arpa.exe
"C:\Users\Admin\AppData\Local\Temp\arpa.exe"
C:\ProgramData\ESET Malware ProtectionLYo\unsecapp.exe
"C:\ProgramData\ESET Malware ProtectionLYo\unsecapp.exe" -app
Network
| Country | Destination | Domain | Proto |
| CN | 45.248.87.140:443 | tcp | |
| CN | 45.248.87.140:443 | tcp | |
| CN | 45.248.87.140:443 | tcp | |
| CN | 45.248.87.140:443 | tcp | |
| CN | 45.248.87.140:443 | tcp | |
| CN | 45.248.87.140:443 | tcp |
Files
\Windows\Temp\avg.exe
| MD5 | fba356748c02da7a65ddef9470aa1cf2 |
| SHA1 | e0e3b538d015b1eb06a8a663bc746a36c3cc5848 |
| SHA256 | 792eba5ba91a52bfb3b369107f38fb9a7e7b7987cd870f465338eae59e81f3f6 |
| SHA512 | f626824b33ea03f690500058c73ba662a1363535f80e7b05149dc8b580bd6bf514b334f3509283933993d0947b254c30cb6ddbf7be99d53de471997a2ef2f71d |
C:\Users\Admin\AppData\Local\Temp\arpa.exe
| MD5 | 28c6f235946fd694d2634c7a2f24c1ba |
| SHA1 | e9a9ce1ff07834d6ba9a51ba0d9e7c7a0b68d3e5 |
| SHA256 | c3159d4f85ceb84c4a0f7ea9208928e729a30ddda4fead7ec6257c7dd1984763 |
| SHA512 | 16865c473e010950a2aa25263af70074ad7539a86dc20e0a253df39e54e3635e99e821d4df83cd7a0eaeff10c75782966439d16d056427e824be8df953e138be |
C:\Users\Admin\AppData\Local\Temp\http_dll.dll
| MD5 | 5b92266d9a26260b4c9920ede267ba37 |
| SHA1 | 372d5455fdb689787e7e49f7799510c6c2cdf6b7 |
| SHA256 | d3c41834ea1a05eb19b6012a9c0c4a2dd9df243af0df56885edabedfe3fea261 |
| SHA512 | db9b277d74d1c50b8580b8dbeef1f5c3f54a6cf436a95c658bf7b8201d48ed651400fdde84d7297abf7f71b1f8f2bf335716833e564fa25cf10483b5f8766ec5 |
C:\Users\Admin\AppData\Local\Temp\http_dll.dat
| MD5 | 27a4ed145a9a6cb41af09b8927fd5bee |
| SHA1 | 815be32e1ae7ec20621e87239a6279fbba2fc8b5 |
| SHA256 | 3fbbf30015b64b50912c09c43052ac48b1983e869cebfb88dd1271fcb4e60d10 |
| SHA512 | 2978496330e0dcfafad6b9186181febe4af28cb7bec227bfab3f0be711e5160b96692a9752e260bf585abc0a5d481bd4d408ead88e0e2973552e4abb934107a8 |
memory/1704-19-0x0000000000360000-0x0000000000460000-memory.dmp
memory/1704-18-0x0000000000130000-0x0000000000150000-memory.dmp
memory/2556-34-0x0000000000110000-0x0000000000130000-memory.dmp
memory/2556-35-0x00000000006F0000-0x00000000007F0000-memory.dmp
memory/2556-36-0x00000000006F0000-0x00000000007F0000-memory.dmp