silverrat

General

Target

SilverClient.exe
Size

45KB
Sample

241127-2r2veazpej
MD5

2644823b5c82b9597da0ec6fa4346443
SHA1

90209dcf6ba5f0d93b6dedee1a9431fc4e84bb00
SHA256

794580ebf0b57442304d0ce36a2ba9e3773fa366cd5b58a3033e0a403c5f7af8
SHA512

71ca346e329c69fca5c957f75497f0c0512120a85cabce663480f60a57e278b8510715b0ee05e471e411ca929b0952f009b99fbe49d597b345e1d2bc0eca9d73
SSDEEP

768:cNIuPbqQXqoivOLl1NiIReRULQez9hsB1TB6SXaAdvre/CE:czPA2PkIReGsu9ATonAdi/CE

Score

10^/10

Malware Config

Extracted

Family

silverrat

Version

1.0.0.0

C2

FBIInvestigation-61203.portmap.host:61203

Mutex

SAHJDBJDKS

Attributes

certificate
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
decrypted_key
-|S.S.S|-
discord
https://discord.com/api/webhooks/1307565058028736522/BvuPOnvMCGBluGhgPBunWxSW6sccMPE50iCM97Bct0vExaNkF3__xy6dkdmzHQG2t597
key
yy6zDjAUmbB09pKvo5Hhug==
key_x509
ZkRpZ1NFYnRETFdPd1ZPV2NZT0JxZXRkQUFEUFFw
payload_url
https://g.top4top.io/p_2522c7w8u1.png
reconnect_delay
4
server_signature
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

Targets

- Target
  
  SilverClient.exe
- Size
  
  45KB
- MD5
  
  2644823b5c82b9597da0ec6fa4346443
- SHA1
  
  90209dcf6ba5f0d93b6dedee1a9431fc4e84bb00
- SHA256
  
  794580ebf0b57442304d0ce36a2ba9e3773fa366cd5b58a3033e0a403c5f7af8
- SHA512
  
  71ca346e329c69fca5c957f75497f0c0512120a85cabce663480f60a57e278b8510715b0ee05e471e411ca929b0952f009b99fbe49d597b345e1d2bc0eca9d73
- SSDEEP
  
  768:cNIuPbqQXqoivOLl1NiIReRULQez9hsB1TB6SXaAdvre/CE:czPA2PkIReGsu9ATonAdi/CE
Score

10^/10

silverrat evasion persistence trojan
- SilverRat
  SilverRat is trojan written in C#.
  trojan silverrat
- Silverrat family
  silverrat
- Sets file to hidden
  Modifies file attributes to stop it showing in Explorer etc.
  evasion
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
  persistence
- Legitimate hosting services abused for malware hosting/C2
behavioral1 behavioral2