Analysis Overview
SHA256
99d5f2394b1ba576d9e82ac5951d1108fe41e631ca5fd2de15837c733296b71c
Threat Level: Known bad
The file PO-0452.pdf.js was found to be: Known bad.
Malicious Activity Summary
Vjw0rm
Remcos
Blocklisted process makes network request
Executes dropped EXE
Drops startup file
Checks computer location settings
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-10-12 13:22
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-10-12 13:22
Reported
2022-10-12 13:24
Platform
win7-20220812-en
Max time kernel
148s
Max time network
140s
Command Line
Signatures
Remcos
Vjw0rm
Blocklisted process makes network request
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\wscript.exe | N/A |
| N/A | N/A | C:\Windows\System32\wscript.exe | N/A |
| N/A | N/A | C:\Windows\System32\wscript.exe | N/A |
| N/A | N/A | C:\Windows\System32\wscript.exe | N/A |
| N/A | N/A | C:\Windows\System32\wscript.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\remcos_a.exe | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\pQvdcedYEV.js | C:\Windows\System32\wscript.exe | N/A |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\pQvdcedYEV.js | C:\Windows\System32\wscript.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1688 wrote to memory of 1272 | N/A | C:\Windows\system32\wscript.exe | C:\Windows\System32\wscript.exe |
| PID 1688 wrote to memory of 1272 | N/A | C:\Windows\system32\wscript.exe | C:\Windows\System32\wscript.exe |
| PID 1688 wrote to memory of 1272 | N/A | C:\Windows\system32\wscript.exe | C:\Windows\System32\wscript.exe |
| PID 1688 wrote to memory of 2044 | N/A | C:\Windows\system32\wscript.exe | C:\Users\Admin\AppData\Local\Temp\remcos_a.exe |
| PID 1688 wrote to memory of 2044 | N/A | C:\Windows\system32\wscript.exe | C:\Users\Admin\AppData\Local\Temp\remcos_a.exe |
| PID 1688 wrote to memory of 2044 | N/A | C:\Windows\system32\wscript.exe | C:\Users\Admin\AppData\Local\Temp\remcos_a.exe |
| PID 1688 wrote to memory of 2044 | N/A | C:\Windows\system32\wscript.exe | C:\Users\Admin\AppData\Local\Temp\remcos_a.exe |
Processes
C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\PO-0452.pdf.js
C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\pQvdcedYEV.js"
C:\Users\Admin\AppData\Local\Temp\remcos_a.exe
"C:\Users\Admin\AppData\Local\Temp\remcos_a.exe"
Network
| Country | Destination | Domain | Proto |
| NL | 185.222.57.147:1989 | tcp | |
| US | 8.8.8.8:53 | javaautorun.duia.ro | udp |
| NG | 41.217.29.135:5465 | javaautorun.duia.ro | tcp |
| NG | 41.217.29.135:5465 | javaautorun.duia.ro | tcp |
| NG | 41.217.29.135:5465 | javaautorun.duia.ro | tcp |
| NG | 41.217.29.135:5465 | javaautorun.duia.ro | tcp |
| NL | 185.222.57.147:1989 | tcp | |
| NG | 41.217.29.135:5465 | javaautorun.duia.ro | tcp |
Files
memory/1688-54-0x000007FEFB6A1000-0x000007FEFB6A3000-memory.dmp
memory/1272-55-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Roaming\pQvdcedYEV.js
| MD5 | 8c08d9c28569d6d222a76c39ef6dbd2c |
| SHA1 | 96c8240b6650b29cacb7abfcefc6defa913ad5c2 |
| SHA256 | eb490702fcfcaa7ca28fe5037f7177c052c9617cf863333e3b9bade5a7e6596e |
| SHA512 | 67e5ab76a58bc953c513204e4767afb68eb73ced347c08d77b37c55c9ba3b7c3ad529e50ba59825459e161ea7fdfd6242326deea0fcd31f30fc2e30f498f22db |
memory/2044-57-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\remcos_a.exe
| MD5 | 14ea8e66c295e1883924c5a685123069 |
| SHA1 | b1dc4b5dd08c3c055066b10c119bd390747994f2 |
| SHA256 | dc402d0bbdb1edac28207a6a9b6cbae698bb0b6cf6efe41bda4362c3a10d6915 |
| SHA512 | c2baca8d5b9438bf061fb9581b6275870a4f6193b8632112e129362e478963ca610692615defad1e55586fd955ce293ab3ecf7408ea7566c7213387ab5b46009 |
memory/2044-59-0x0000000075601000-0x0000000075603000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-10-12 13:22
Reported
2022-10-12 13:24
Platform
win10v2004-20220812-en
Max time kernel
149s
Max time network
152s
Command Line
Signatures
Remcos
Vjw0rm
Blocklisted process makes network request
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\wscript.exe | N/A |
| N/A | N/A | C:\Windows\System32\wscript.exe | N/A |
| N/A | N/A | C:\Windows\System32\wscript.exe | N/A |
| N/A | N/A | C:\Windows\System32\wscript.exe | N/A |
| N/A | N/A | C:\Windows\System32\wscript.exe | N/A |
| N/A | N/A | C:\Windows\System32\wscript.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\remcos_a.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation | C:\Windows\system32\wscript.exe | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\pQvdcedYEV.js | C:\Windows\System32\wscript.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\pQvdcedYEV.js | C:\Windows\System32\wscript.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 964 wrote to memory of 3972 | N/A | C:\Windows\system32\wscript.exe | C:\Windows\System32\wscript.exe |
| PID 964 wrote to memory of 3972 | N/A | C:\Windows\system32\wscript.exe | C:\Windows\System32\wscript.exe |
| PID 964 wrote to memory of 1252 | N/A | C:\Windows\system32\wscript.exe | C:\Users\Admin\AppData\Local\Temp\remcos_a.exe |
| PID 964 wrote to memory of 1252 | N/A | C:\Windows\system32\wscript.exe | C:\Users\Admin\AppData\Local\Temp\remcos_a.exe |
| PID 964 wrote to memory of 1252 | N/A | C:\Windows\system32\wscript.exe | C:\Users\Admin\AppData\Local\Temp\remcos_a.exe |
Processes
C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\PO-0452.pdf.js
C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\pQvdcedYEV.js"
C:\Users\Admin\AppData\Local\Temp\remcos_a.exe
"C:\Users\Admin\AppData\Local\Temp\remcos_a.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.247.210.254:80 | tcp | |
| US | 8.247.210.254:80 | tcp | |
| US | 8.247.210.254:80 | tcp | |
| US | 8.8.8.8:53 | javaautorun.duia.ro | udp |
| NG | 41.217.29.135:5465 | javaautorun.duia.ro | tcp |
| NL | 185.222.57.147:1989 | tcp | |
| NG | 41.217.29.135:5465 | javaautorun.duia.ro | tcp |
| IE | 52.109.77.0:443 | tcp | |
| NG | 41.217.29.135:5465 | javaautorun.duia.ro | tcp |
| NL | 185.222.57.147:1989 | tcp | |
| NG | 41.217.29.135:5465 | javaautorun.duia.ro | tcp |
| NG | 41.217.29.135:5465 | javaautorun.duia.ro | tcp |
| US | 8.247.210.254:80 | tcp | |
| NL | 185.222.57.147:1989 | tcp | |
| NG | 41.217.29.135:5465 | javaautorun.duia.ro | tcp |
Files
memory/3972-132-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Roaming\pQvdcedYEV.js
| MD5 | 8c08d9c28569d6d222a76c39ef6dbd2c |
| SHA1 | 96c8240b6650b29cacb7abfcefc6defa913ad5c2 |
| SHA256 | eb490702fcfcaa7ca28fe5037f7177c052c9617cf863333e3b9bade5a7e6596e |
| SHA512 | 67e5ab76a58bc953c513204e4767afb68eb73ced347c08d77b37c55c9ba3b7c3ad529e50ba59825459e161ea7fdfd6242326deea0fcd31f30fc2e30f498f22db |
memory/1252-134-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\remcos_a.exe
| MD5 | 14ea8e66c295e1883924c5a685123069 |
| SHA1 | b1dc4b5dd08c3c055066b10c119bd390747994f2 |
| SHA256 | dc402d0bbdb1edac28207a6a9b6cbae698bb0b6cf6efe41bda4362c3a10d6915 |
| SHA512 | c2baca8d5b9438bf061fb9581b6275870a4f6193b8632112e129362e478963ca610692615defad1e55586fd955ce293ab3ecf7408ea7566c7213387ab5b46009 |
C:\Users\Admin\AppData\Local\Temp\remcos_a.exe
| MD5 | 14ea8e66c295e1883924c5a685123069 |
| SHA1 | b1dc4b5dd08c3c055066b10c119bd390747994f2 |
| SHA256 | dc402d0bbdb1edac28207a6a9b6cbae698bb0b6cf6efe41bda4362c3a10d6915 |
| SHA512 | c2baca8d5b9438bf061fb9581b6275870a4f6193b8632112e129362e478963ca610692615defad1e55586fd955ce293ab3ecf7408ea7566c7213387ab5b46009 |