Analysis Overview
SHA256
49281ec5f3bdbbe86268bddcdd59909573420a7d751639d9d10d66a48f3d5d4c
Threat Level: Known bad
The file NEAS.0ff4ee90b781b9f295724ef48a10de70_JC.exe was found to be: Known bad.
Malicious Activity Summary
Asyncrat family
Async RAT payload
AsyncRat
Async RAT payload
Checks computer location settings
Executes dropped EXE
Obfuscated with Agile.Net obfuscator
Legitimate hosting services abused for malware hosting/C2
Enumerates physical storage devices
Unsigned PE
Suspicious use of AdjustPrivilegeToken
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Creates scheduled task(s)
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-10-12 18:52
Signatures
Async RAT payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Asyncrat family
Obfuscated with Agile.Net obfuscator
| 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
2023-10-12 18:52
Reported
2023-10-17 11:11
Platform
win7-20230831-en
Max time kernel
140s
Max time network
170s
Command Line
Signatures
AsyncRat
Async RAT payload
| 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 |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe | N/A |
Obfuscated with Agile.Net obfuscator
| 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 |
Legitimate hosting services abused for malware hosting/C2
Enumerates physical storage devices
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\timeout.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\NEAS.0ff4ee90b781b9f295724ef48a10de70_JC.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\NEAS.0ff4ee90b781b9f295724ef48a10de70_JC.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\NEAS.0ff4ee90b781b9f295724ef48a10de70_JC.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\NEAS.0ff4ee90b781b9f295724ef48a10de70_JC.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.0ff4ee90b781b9f295724ef48a10de70_JC.exe"
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "RuntimeBroker" /tr '"C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe"' & exit
C:\Windows\system32\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp8B5E.tmp.bat""
C:\Windows\system32\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "RuntimeBroker" /tr '"C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe"'
C:\Windows\system32\timeout.exe
timeout 3
C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe
"C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | pastebin.com | udp |
| US | 104.20.67.143:443 | pastebin.com | tcp |
| DE | 84.182.130.233:4782 | tcp | |
| DE | 84.182.130.233:4782 | tcp | |
| DE | 84.182.130.233:4782 | tcp | |
| DE | 84.182.130.233:4782 | tcp | |
| DE | 84.182.130.233:4782 | tcp | |
| DE | 84.182.130.233:4782 | tcp |
Files
memory/2052-0-0x0000000000880000-0x00000000008AE000-memory.dmp
memory/2052-1-0x000007FEF5C20000-0x000007FEF660C000-memory.dmp
memory/2052-3-0x000000001B350000-0x000000001B3D0000-memory.dmp
memory/2052-4-0x00000000778D0000-0x0000000077A79000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp8B5E.tmp.bat
| MD5 | 78c287b210a9df0935a5d5f8a49c8e41 |
| SHA1 | bd9b789cbe737825505aa7c005907a481fd17af8 |
| SHA256 | 2885c359a29cc9c8eac90f72ac06a7aff73174289ce394cb151559fb289c2c09 |
| SHA512 | c8d898d9f0bf73a6e679662dfcaaa44873d9a829f2df8799d45244e405846dd3efa9121297e4855223ce49cf2534cef51d7f25555196013b960a0a66af558e58 |
C:\Users\Admin\AppData\Local\Temp\tmp8B5E.tmp.bat
| MD5 | 78c287b210a9df0935a5d5f8a49c8e41 |
| SHA1 | bd9b789cbe737825505aa7c005907a481fd17af8 |
| SHA256 | 2885c359a29cc9c8eac90f72ac06a7aff73174289ce394cb151559fb289c2c09 |
| SHA512 | c8d898d9f0bf73a6e679662dfcaaa44873d9a829f2df8799d45244e405846dd3efa9121297e4855223ce49cf2534cef51d7f25555196013b960a0a66af558e58 |
memory/2052-14-0x000007FEF5C20000-0x000007FEF660C000-memory.dmp
memory/2052-15-0x00000000778D0000-0x0000000077A79000-memory.dmp
C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe
| MD5 | 0ff4ee90b781b9f295724ef48a10de70 |
| SHA1 | 77a57b29f1aab01ffe89d7ab9778035a393456e8 |
| SHA256 | 49281ec5f3bdbbe86268bddcdd59909573420a7d751639d9d10d66a48f3d5d4c |
| SHA512 | f29f8cd0ad8e27f579d0c787b84dfdcfab2e33601cb8f79469af1be3ec680e5c0a0e565dd47f3ce89b9b549885aebff3bd517155355bef2a731e5738e9e7ba78 |
C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe
| MD5 | 0ff4ee90b781b9f295724ef48a10de70 |
| SHA1 | 77a57b29f1aab01ffe89d7ab9778035a393456e8 |
| SHA256 | 49281ec5f3bdbbe86268bddcdd59909573420a7d751639d9d10d66a48f3d5d4c |
| SHA512 | f29f8cd0ad8e27f579d0c787b84dfdcfab2e33601cb8f79469af1be3ec680e5c0a0e565dd47f3ce89b9b549885aebff3bd517155355bef2a731e5738e9e7ba78 |
memory/2608-19-0x0000000000AB0000-0x0000000000ADE000-memory.dmp
C:\Users\Admin\AppData\Roaming\MyData\DataLogs.conf
| MD5 | cf759e4c5f14fe3eec41b87ed756cea8 |
| SHA1 | c27c796bb3c2fac929359563676f4ba1ffada1f5 |
| SHA256 | c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761 |
| SHA512 | c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b |
memory/2608-21-0x000007FEF5230000-0x000007FEF5C1C000-memory.dmp
memory/2608-22-0x000000001B0F0000-0x000000001B170000-memory.dmp
memory/2608-23-0x00000000778D0000-0x0000000077A79000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\CabAB20.tmp
| MD5 | f3441b8572aae8801c04f3060b550443 |
| SHA1 | 4ef0a35436125d6821831ef36c28ffaf196cda15 |
| SHA256 | 6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf |
| SHA512 | 5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9 |
C:\Users\Admin\AppData\Local\Temp\TarAB52.tmp
| MD5 | 9441737383d21192400eca82fda910ec |
| SHA1 | 725e0d606a4fc9ba44aa8ffde65bed15e65367e4 |
| SHA256 | bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5 |
| SHA512 | 7608dd653a66cd364392a78d4711b48d1707768d36996e4d38871c6843b5714e1d7da4b4cc6db969e6000cfa182bcb74216ef6823d1063f036fc5c3413fb8dcf |
memory/2608-58-0x000007FEF5230000-0x000007FEF5C1C000-memory.dmp
memory/2608-59-0x00000000778D0000-0x0000000077A79000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-10-12 18:52
Reported
2023-10-17 11:14
Platform
win10v2004-20230915-en
Max time kernel
212s
Max time network
235s
Command Line
Signatures
AsyncRat
Async RAT payload
| 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 |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1045988481-1457812719-2617974652-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\NEAS.0ff4ee90b781b9f295724ef48a10de70_JC.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe | N/A |
Obfuscated with Agile.Net obfuscator
| 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 |
Legitimate hosting services abused for malware hosting/C2
Enumerates physical storage devices
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\timeout.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\NEAS.0ff4ee90b781b9f295724ef48a10de70_JC.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\NEAS.0ff4ee90b781b9f295724ef48a10de70_JC.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.0ff4ee90b781b9f295724ef48a10de70_JC.exe"
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "RuntimeBroker" /tr '"C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe"' & exit
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp4915.tmp.bat""
C:\Windows\system32\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "RuntimeBroker" /tr '"C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe"'
C:\Windows\system32\timeout.exe
timeout 3
C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe
"C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 71.121.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 59.128.231.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 120.208.253.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 69.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 108.211.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 158.240.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | pastebin.com | udp |
| US | 104.20.68.143:443 | pastebin.com | tcp |
| US | 8.8.8.8:53 | 122.10.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 143.68.20.104.in-addr.arpa | udp |
| DE | 84.182.130.233:4782 | tcp | |
| DE | 84.182.130.233:4782 | tcp | |
| DE | 84.182.130.233:4782 | tcp | |
| US | 8.8.8.8:53 | 146.78.124.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.57.101.20.in-addr.arpa | udp |
| DE | 84.182.130.233:4782 | tcp |
Files
memory/4556-0-0x0000000000130000-0x000000000015E000-memory.dmp
memory/4556-2-0x00007FFB48500000-0x00007FFB48FC1000-memory.dmp
memory/4556-3-0x000000001B0F0000-0x000000001B100000-memory.dmp
memory/4556-4-0x00007FFB65B90000-0x00007FFB65D85000-memory.dmp
memory/4556-9-0x00007FFB48500000-0x00007FFB48FC1000-memory.dmp
memory/4556-10-0x00007FFB65B90000-0x00007FFB65D85000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp4915.tmp.bat
| MD5 | c272458fe2dc22ce9eb6fcd6d721b280 |
| SHA1 | 820ffc70a003d25da8646f44e8a6d039ebcf2343 |
| SHA256 | 1244a726739de62ef0fbc4cbadf688e861f1daf1fc4b929cdb530f68d752638e |
| SHA512 | e95e460946047c5ae06f8331e419761d8e6cda724f4fce0c44861e79fe2ba0471eb352b45fad3d3f4eeac824af3bb96bb594502bee097056aad14b0670556ee0 |
C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe
| MD5 | 0ff4ee90b781b9f295724ef48a10de70 |
| SHA1 | 77a57b29f1aab01ffe89d7ab9778035a393456e8 |
| SHA256 | 49281ec5f3bdbbe86268bddcdd59909573420a7d751639d9d10d66a48f3d5d4c |
| SHA512 | f29f8cd0ad8e27f579d0c787b84dfdcfab2e33601cb8f79469af1be3ec680e5c0a0e565dd47f3ce89b9b549885aebff3bd517155355bef2a731e5738e9e7ba78 |
C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe
| MD5 | 0ff4ee90b781b9f295724ef48a10de70 |
| SHA1 | 77a57b29f1aab01ffe89d7ab9778035a393456e8 |
| SHA256 | 49281ec5f3bdbbe86268bddcdd59909573420a7d751639d9d10d66a48f3d5d4c |
| SHA512 | f29f8cd0ad8e27f579d0c787b84dfdcfab2e33601cb8f79469af1be3ec680e5c0a0e565dd47f3ce89b9b549885aebff3bd517155355bef2a731e5738e9e7ba78 |
C:\Users\Admin\AppData\Roaming\MyData\DataLogs.conf
| MD5 | cf759e4c5f14fe3eec41b87ed756cea8 |
| SHA1 | c27c796bb3c2fac929359563676f4ba1ffada1f5 |
| SHA256 | c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761 |
| SHA512 | c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b |
memory/4796-16-0x00007FFB477B0000-0x00007FFB48271000-memory.dmp
memory/4796-17-0x00007FFB477B0000-0x00007FFB48271000-memory.dmp
memory/4796-18-0x00007FFB65B90000-0x00007FFB65D85000-memory.dmp
memory/4796-19-0x00007FFB65B90000-0x00007FFB65D85000-memory.dmp