tofsee | 6376859ba38701f4b0cf9fb970867d7e8b4712916181b26c72273e223b12d0a0 | Triage

Sharing

General

Target

ff25472606e2de2bd621b467a6f969a2_JaffaCakes118
Size

13.4MB
Sample

240421-m85kashd82
MD5

ff25472606e2de2bd621b467a6f969a2
SHA1

c027a885b1dedebab96f8cfac9facbf5ae2cf14c
SHA256

6376859ba38701f4b0cf9fb970867d7e8b4712916181b26c72273e223b12d0a0
SHA512

98bb3fb60883d7c48f6ee328bb3cb59e7509b1baec769912bd63243cccccd573f4ca64aa137af01c602deeaca2f3f91fc03142cfcef06fe619323bbe0dbebb2d
SSDEEP

49152:AckGb2222222222222222222222222222222222222222222222222222222222n:Ack

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

- Target
  
  ff25472606e2de2bd621b467a6f969a2_JaffaCakes118
- Size
  
  13.4MB
- MD5
  
  ff25472606e2de2bd621b467a6f969a2
- SHA1
  
  c027a885b1dedebab96f8cfac9facbf5ae2cf14c
- SHA256
  
  6376859ba38701f4b0cf9fb970867d7e8b4712916181b26c72273e223b12d0a0
- SHA512
  
  98bb3fb60883d7c48f6ee328bb3cb59e7509b1baec769912bd63243cccccd573f4ca64aa137af01c602deeaca2f3f91fc03142cfcef06fe619323bbe0dbebb2d
- SSDEEP
  
  49152:AckGb2222222222222222222222222222222222222222222222222222222222n:Ack
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