silverrat

General

Target

SilverClient.exe
Size

45KB
Sample

240517-npd4nsfe9s
MD5

5aaf4dc88486ca876c340964c4620795
SHA1

6a7b8ffc9a78d18922826ae4e6995183c9306b33
SHA256

90b3837db19fdf80e796980f939cf929e90689fa73032bd737584739a88eb14b
SHA512

14ba9ceb1b656fd45de6e9f4c05bf6eb56f53cb76d9ed05f7bf9de4502e7faebf6a0250c49ac9c84535389c30ae3ae91b1f629ad7092390a8834067ffda9303a
SSDEEP

768:H621RulYYD6dXujHUDJg5xApjocXju3RULQv9S7NLt1tSydB6SOokvry/BuU:H62Dulkg5xAPjYGsv9qtRdotokm/BuU

Score

10^/10

Malware Config

Extracted

Family

silverrat

Version

1.0.0.0

Mutex

SilverMutex_RVRntAREok

Attributes

certificate
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
decrypted_key
-|S.S.S|-
discord
https://discord.com/api/webhooks/1240989609282768947/UKTVLsKrIv4zG3xIoW6O3HP3e1A-A2rdotC6trnUuvG8CvuX-Gr42g9oSlqc4OaBus4R
key
yy6zDjAUmbB09pKvo5Hhug==
key_x509
S0l5YlRoZHhKU2RTeGhvWWdhb3VYaFRQUkJKdVdk
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
  
  5aaf4dc88486ca876c340964c4620795
- SHA1
  
  6a7b8ffc9a78d18922826ae4e6995183c9306b33
- SHA256
  
  90b3837db19fdf80e796980f939cf929e90689fa73032bd737584739a88eb14b
- SHA512
  
  14ba9ceb1b656fd45de6e9f4c05bf6eb56f53cb76d9ed05f7bf9de4502e7faebf6a0250c49ac9c84535389c30ae3ae91b1f629ad7092390a8834067ffda9303a
- SSDEEP
  
  768:H621RulYYD6dXujHUDJg5xApjocXju3RULQv9S7NLt1tSydB6SOokvry/BuU:H62Dulkg5xAPjYGsv9qtRdotokm/BuU
Score

10^/10

silverrat evasion execution 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
- Executes dropped EXE
- Adds Run key to start application
  persistence
- Command and Scripting Interpreter: PowerShell
  Using powershell.exe command.
  execution
- Legitimate hosting services abused for malware hosting/C2
behavioral1