tofsee | 3d75c4f3de4c59779cd84d9b938445948a257b5dbe6d291ce64b98d7e0b5e80d | Triage

Sharing

General

Target

f82fcc6b28d0ae7b42e6a6a123913719_JaffaCakes118
Size

11.5MB
Sample

240418-rqxh7agf8z
MD5

f82fcc6b28d0ae7b42e6a6a123913719
SHA1

ca5b8c2a36e2baa53082673f78f65b402182d2bd
SHA256

3d75c4f3de4c59779cd84d9b938445948a257b5dbe6d291ce64b98d7e0b5e80d
SHA512

109cb309682d2761bb7d03a2a52718d83f4cc8d437c33dcda17a055c41e5b798057dc63bf3095c4652d0027e7d08d3fbcbfa6aa366dac308cc8926be08e9b4d7
SSDEEP

49152:i3SkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkE:i3

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.6

lazystax.ru

Targets

- Target
  
  f82fcc6b28d0ae7b42e6a6a123913719_JaffaCakes118
- Size
  
  11.5MB
- MD5
  
  f82fcc6b28d0ae7b42e6a6a123913719
- SHA1
  
  ca5b8c2a36e2baa53082673f78f65b402182d2bd
- SHA256
  
  3d75c4f3de4c59779cd84d9b938445948a257b5dbe6d291ce64b98d7e0b5e80d
- SHA512
  
  109cb309682d2761bb7d03a2a52718d83f4cc8d437c33dcda17a055c41e5b798057dc63bf3095c4652d0027e7d08d3fbcbfa6aa366dac308cc8926be08e9b4d7
- SSDEEP
  
  49152:i3SkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkE:i3
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