Analysis Overview
SHA256
8cd446387f47cd667943aba6e1e636c36fe07fb2dbc0990201fb3552ca8077e4
Threat Level: Known bad
The file silence.rar was found to be: Known bad.
Malicious Activity Summary
Discordrat family
Discord RAT
Checks computer location settings
Executes dropped EXE
Legitimate hosting services abused for malware hosting/C2
Unsigned PE
Enumerates physical storage devices
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Checks processor information in registry
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
Checks SCSI registry key(s)
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-03-19 16:41
Signatures
Discordrat family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-03-19 16:41
Reported
2024-03-19 16:44
Platform
win10v2004-20240226-en
Max time kernel
78s
Max time network
86s
Command Line
Signatures
Discord RAT
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\silence\silence-workspace.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\CLIENT-BUILT.EXE | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\SILENCE-WORKSPACE.EXE | N/A |
Legitimate hosting services abused for malware hosting/C2
| Description | Indicator | Process | Target |
| N/A | discord.com | N/A | N/A |
| N/A | discord.com | N/A | N/A |
| N/A | discord.com | N/A | N/A |
Enumerates physical storage devices
Checks SCSI registry key(s)
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000 | C:\Windows\system32\taskmgr.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A | C:\Windows\system32\taskmgr.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName | C:\Windows\system32\taskmgr.exe | N/A |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Windows\system32\taskmgr.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Windows\system32\taskmgr.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-1904519900-954640453-4250331663-1000_Classes\Local Settings | C:\Windows\system32\taskmgr.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\CLIENT-BUILT.EXE | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\system32\taskmgr.exe | N/A |
| Token: SeSystemProfilePrivilege | N/A | C:\Windows\system32\taskmgr.exe | N/A |
| Token: SeCreateGlobalPrivilege | N/A | C:\Windows\system32\taskmgr.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\taskmgr.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\taskmgr.exe | N/A |
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\silence\silence-workspace.exe
"C:\Users\Admin\AppData\Local\Temp\silence\silence-workspace.exe"
C:\Users\Admin\AppData\Local\Temp\CLIENT-BUILT.EXE
"C:\Users\Admin\AppData\Local\Temp\CLIENT-BUILT.EXE"
C:\Users\Admin\AppData\Local\Temp\SILENCE-WORKSPACE.EXE
"C:\Users\Admin\AppData\Local\Temp\SILENCE-WORKSPACE.EXE"
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\SILENCE-WORKSPACE.EXE" MD5 | find /i /v "md5" | find /i /v "certutil"
C:\Windows\system32\certutil.exe
certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\SILENCE-WORKSPACE.EXE" MD5
C:\Windows\system32\find.exe
find /i /v "md5"
C:\Windows\system32\find.exe
find /i /v "certutil"
C:\Windows\system32\taskmgr.exe
"C:\Windows\system32\taskmgr.exe" /7
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=3940 --field-trial-handle=2232,i,11267738607351977302,107266978269557304,262144 --variations-seed-version /prefetch:8
C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 29.179.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | gateway.discord.gg | udp |
| US | 8.8.8.8:53 | keyauth.win | udp |
| US | 104.26.1.5:443 | keyauth.win | tcp |
| US | 8.8.8.8:53 | 5.1.26.104.in-addr.arpa | udp |
| US | 162.159.134.234:443 | gateway.discord.gg | tcp |
| US | 8.8.8.8:53 | 234.134.159.162.in-addr.arpa | udp |
| N/A | 127.0.0.1:49823 | tcp | |
| N/A | 127.0.0.1:49825 | tcp | |
| US | 8.8.8.8:53 | x2.c.lencr.org | udp |
| DE | 69.192.161.44:80 | x2.c.lencr.org | tcp |
| US | 104.26.1.5:443 | keyauth.win | tcp |
| US | 8.8.8.8:53 | 40.13.222.173.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 44.161.192.69.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | discord.com | udp |
| US | 162.159.137.232:443 | discord.com | tcp |
| N/A | 127.0.0.1:49835 | tcp | |
| N/A | 127.0.0.1:49837 | tcp | |
| US | 8.8.8.8:53 | 232.137.159.162.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.99.105.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | geolocation-db.com | udp |
| DE | 159.89.102.253:443 | geolocation-db.com | tcp |
| US | 162.159.137.232:443 | discord.com | tcp |
| US | 8.8.8.8:53 | 253.102.89.159.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 193.178.17.96.in-addr.arpa | udp |
| US | 162.159.137.232:443 | tcp |
Files
C:\Users\Admin\AppData\Local\Temp\CLIENT-BUILT.EXE
| MD5 | 6f9c42f940f854243a2f445c8cb750ec |
| SHA1 | aeed75218753dd1f184cc55ebbe8a1a80e5a59f3 |
| SHA256 | 15fbe5942c60d92081fa93d5444a7abb355dc917c9ea3a44585d5a4b4219e91a |
| SHA512 | 612bfac0a8a079a67e361e87ac6eaf9c9cc5a4940b5dd74ecb6c61e2811707b2e60e60ee70102622c0bb222b01a3aced82853d130d2f07075e8d629e33bb8cb2 |
memory/2124-15-0x00000171955F0000-0x0000017195608000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\SILENCE-WORKSPACE.EXE
| MD5 | 99cd7ad997482bbb4608e22d6c1f8ce5 |
| SHA1 | 870166172f7800ea652e44571b13cab43525f1e8 |
| SHA256 | f48ffcc29c01795b6a73a4d479fed81a0666acc9b18219f72a2ebec68c62d296 |
| SHA512 | f2d9c1b682a353e7826db9416354aa8c3911367f392e88e80c11f7704dc7e1614853f7076268bf9cd68472b8af737251964514934fec20915a99be586b378367 |
C:\Users\Admin\AppData\Local\Temp\SILENCE-WORKSPACE.EXE
| MD5 | ac53e8b4fb2c02462158044a81f25213 |
| SHA1 | 094fdb0b46f67e9b781ed49f2dc7562156eae92c |
| SHA256 | cf26448737c8365bff5f9e0433ee9d1cf6aaab965b69342f325bed0e665dc8cd |
| SHA512 | eb65c2cef8979b16abaf87303c8393a7e6601a6fd312e0bb50d32d08322e7a46bb7f394c1728b9d67a5c8456b22f0eb5fd4fae6fd720913ba89bf926709fb23a |
memory/2124-19-0x00000171AFBD0000-0x00000171AFD92000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\SILENCE-WORKSPACE.EXE
| MD5 | 8b393057c5c9026495f8efbe7234b1c4 |
| SHA1 | 21aff93ce1ff29a961ac947cafd75b6994fb5ae8 |
| SHA256 | c100648181026be6dbce91beb36b5cd859563c4b0edd8e4a0aa5d60829467b30 |
| SHA512 | 57504769cff622817a129f4b0d235d2f148a381d588950949f0b0316c71aef46e3d0d17747a50a81a946e73af486962d52f23160fe937c1d6caf8db4b1996952 |
memory/2124-21-0x00007FFCD4460000-0x00007FFCD4F21000-memory.dmp
memory/2124-22-0x00000171AFB40000-0x00000171AFB50000-memory.dmp
memory/2124-23-0x00000171B0C80000-0x00000171B11A8000-memory.dmp
memory/2124-24-0x00007FFCD4460000-0x00007FFCD4F21000-memory.dmp
memory/2124-25-0x00000171AFB40000-0x00000171AFB50000-memory.dmp
memory/5272-27-0x000001A0B3700000-0x000001A0B3701000-memory.dmp
memory/5272-26-0x000001A0B3700000-0x000001A0B3701000-memory.dmp
memory/5272-28-0x000001A0B3700000-0x000001A0B3701000-memory.dmp
memory/5272-32-0x000001A0B3700000-0x000001A0B3701000-memory.dmp
memory/5272-33-0x000001A0B3700000-0x000001A0B3701000-memory.dmp
memory/5272-34-0x000001A0B3700000-0x000001A0B3701000-memory.dmp
memory/5272-35-0x000001A0B3700000-0x000001A0B3701000-memory.dmp
memory/5272-36-0x000001A0B3700000-0x000001A0B3701000-memory.dmp
memory/5272-37-0x000001A0B3700000-0x000001A0B3701000-memory.dmp
memory/5272-38-0x000001A0B3700000-0x000001A0B3701000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-19 16:41
Reported
2024-03-19 16:45
Platform
win10v2004-20240226-en
Max time kernel
147s
Max time network
156s
Command Line
Signatures
Enumerates physical storage devices
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000_Classes\Local Settings | C:\Windows\system32\cmd.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000_Classes\Local Settings | C:\Windows\system32\OpenWith.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\OpenWith.exe | N/A |
Processes
C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\silence\silence.json
C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
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=3984 --field-trial-handle=2328,i,5873823382323802923,13134441441264702821,262144 --variations-seed-version /prefetch:8
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 68.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 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 | 68.179.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 45.19.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 13.107.253.64:443 | tcp | |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 37.56.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | chromewebstore.googleapis.com | udp |
| US | 8.8.8.8:53 | chromewebstore.googleapis.com | udp |
| NL | 142.250.179.170:443 | chromewebstore.googleapis.com | tcp |
| US | 8.8.8.8:53 | 170.179.250.142.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 178.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.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 | 8.8.8.8:53 | 24.73.42.20.in-addr.arpa | udp |