tofsee | f6bb05628a5c7b46bde51f556687ee0d06723b97db383e0863677b63d662e42b | Triage

Sharing

General

Target

ff33e300d05739184f8b619c6c0b3655_JaffaCakes118
Size

12.6MB
Sample

240421-nv94asad32
MD5

ff33e300d05739184f8b619c6c0b3655
SHA1

5ba18dc0534a01afa24c27dc36ac9ceb01bcfa91
SHA256

f6bb05628a5c7b46bde51f556687ee0d06723b97db383e0863677b63d662e42b
SHA512

1f5da43990f2fdf7d567e7da33677f45304a8211d56bd017f22b84c804bcdb1cd65cddde2d5fc16e774b1c59eeae46d5adf58225521451a86c004a9dbdf63947
SSDEEP

12288:6ZH3jactctctctctctctctctctctctctctctctctctctctctctctctctctctctcS:61T

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Targets

- Target
  
  ff33e300d05739184f8b619c6c0b3655_JaffaCakes118
- Size
  
  12.6MB
- MD5
  
  ff33e300d05739184f8b619c6c0b3655
- SHA1
  
  5ba18dc0534a01afa24c27dc36ac9ceb01bcfa91
- SHA256
  
  f6bb05628a5c7b46bde51f556687ee0d06723b97db383e0863677b63d662e42b
- SHA512
  
  1f5da43990f2fdf7d567e7da33677f45304a8211d56bd017f22b84c804bcdb1cd65cddde2d5fc16e774b1c59eeae46d5adf58225521451a86c004a9dbdf63947
- SSDEEP
  
  12288:6ZH3jactctctctctctctctctctctctctctctctctctctctctctctctctctctctcS:61T
Score

10^/10

tofsee evasion persistence trojan
- Tofsee
  Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
  trojan tofsee
- Windows security bypass
  evasion trojan
- Creates new service(s)
  persistence
- Modifies Windows Firewall
  evasion
- Sets service image path in registry
  persistence
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Deletes itself
- Executes dropped EXE
- Suspicious use of SetThreadContext
behavioral1 behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Create or Modify System Process

Windows Service

Privilege Escalation

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Create or Modify System Process

Windows Service

Defense Evasion

Impair Defenses

Disable or Modify System Firewall

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

Query Registry

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks

static1

behavioral1

tofseeevasionpersistencetrojan

behavioral2

tofseeevasionpersistencetrojan