silverrat

General

Target
SilverClient.exe
Size 46KB
Sample251214-jfyphaslgl
SHA256 2dd5b39bbfc719f6fa1b72bf102a8d38b6423e2661db3be696356b962737738e
MD5 471c08a82fdc36142cb5ef0501947433
SHA1 7917c7eaccc08f095f3621543e557c14df16a8df
SHA512 2793b119c976b4c4ef68c04b196782567ed9eaf93e650c674fd275bf3882d1d57af1516d7b2c0e5df460f3c935b82d031a82ec4275bf8f26d85a025ee8c8b0c8
SSDEEP 768:n0x4CCKui/50PTsYD3mRUp9f3rHfazB6Saq6IvWafA8GjdW:n0x1XGp9uzoVq6IOafA80W
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

Malware Config

Extracted

Family

silverrat

Version

1.0.0.0

C2

n7xbtfikx.localto.net:8320

Mutex

SilverMutex_ahFqchhdJA

Attributes

certificate
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
decrypted_key
-|S.S.S|-
discord
https://discord.com/api/webhooks/1449649503429857332/Ow8BGUuwlrDnZiFLWLtfJtdK-g-ywd8TLD0xFoePi1oCtZRPtr2skTIbIKrtli7xnsmi
key
yy6zDjAUmbB09pKvo5Hhug==
key_x509
YkpXRVhEa0h4RXRDRU9jYkFuTFR4V0RBRGdBZUhR
payload_url
https://g.top4top.io/p_2522c7w8u1.png
reconnect_delay
4
server_signature
wdAHTuc/WDln/6w8wy64q/HSc+xjaX3om99wIvP8Ysi5+cLUsDIsvDblGoP7c/83OWoAyzQvUI8VzHvpLz7BeAp0MNsVnEvZMhNcuwpbWwQ4IEPnWRBsOP/szrHCeY8a3g6Whv46fzcJUkmauE5rBOe71d6KB38+3D3RLesOwN9KG+4Wb8Gf7qeH8oTiqbEBvbsomSvd4NDnw+oJhXXSvDlB8M5tKasQhtWY8YgJ9tyLlYWSV+ALZgclU+Xp9IwRl7i2mgYNjUsHm6pK12x0tmSVQZZK3Cs8o/rIHC2xe8Rza8jhtt+RW90k8HAgjCjmXa+CYgtLSa/hZLaR65NUF+FrEjY14J7NzovhyECuQhev6Twrkd+yMIbL00+kKb18a4FWkmSabsPSuAgHXZh/YyCQkTAEgcpHU4J3eYfMPUkKVAYOZuwLWzmlNVIsIDwZ79HaiLBWsg7lzImjFzQxepM6zv3RdI8gyUYZ+2pDD268DzI30ZxAn5FQjaoRYJDavPUQCwdyjpheyv/B6c7gQrxMF2sw1YqvdnESdHhkOXCX/eOjsjvcoW66pom/wutc/I2FHg/rQ/w0JibEGoUd5HNrZyjbNYhPJQKJrexlOhuS+VilkQiDFS5/Biv/Nitk3dWptQs1Gbe9zNJnSWyLkIRs+gIvTVUwByo5CMoyWlk=

Targets

- Target
  SilverClient.exe
- Size 46KB
- SHA256 2dd5b39bbfc719f6fa1b72bf102a8d38b6423e2661db3be696356b962737738e
- MD5 471c08a82fdc36142cb5ef0501947433
- SHA1 7917c7eaccc08f095f3621543e557c14df16a8df
- SHA512 2793b119c976b4c4ef68c04b196782567ed9eaf93e650c674fd275bf3882d1d57af1516d7b2c0e5df460f3c935b82d031a82ec4275bf8f26d85a025ee8c8b0c8
- SSDEEP 768:n0x4CCKui/50PTsYD3mRUp9f3rHfazB6Saq6IvWafA8GjdW:n0x1XGp9uzoVq6IOafA80W
- MD5 SHA1 SHA512 SSDEEP
Score

10^/10

defense_evasion execution silverrat persistence trojan
- SilverRat
  SilverRat is trojan written in C#.
  trojan silverrat
- Silverrat family
  silverrat
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE
- Command and Scripting Interpreter: PowerShell
  Using powershell.exe command.
  execution
- Legitimate hosting services abused for malware hosting/C2
behavioral1 behavioral2