tofsee | 5d711364f716a3ca2fc403dc12ba6d19ce33bffdc574723c1ab096f10d482b2f | Triage

Sharing

General

Target

5d711364f716a3ca2fc403dc12ba6d19ce33bffdc574723c1ab096f10d482b2f
Size

11.5MB
Sample

240507-lb1peach63
MD5

02fde23cc0d95d23d10abe0a8c4ef375
SHA1

9c8d4db37c2bae77a1d4618b5ac01465a9885a0f
SHA256

5d711364f716a3ca2fc403dc12ba6d19ce33bffdc574723c1ab096f10d482b2f
SHA512

93eb2ac2523589e9990bf1b101278836a75abc9e62cef6294a94854edbd86c2259400d715a0436fed7d5af81b5ea3e7cf274ea085207eeab528eecc83cc747b2
SSDEEP

49152:Hgs8e44444444444444444444444444444444444444444444444444444444444:Hg

Score

10^/10

tofsee evasion execution persistence trojan

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Targets

- Target
  
  5d711364f716a3ca2fc403dc12ba6d19ce33bffdc574723c1ab096f10d482b2f
- Size
  
  11.5MB
- MD5
  
  02fde23cc0d95d23d10abe0a8c4ef375
- SHA1
  
  9c8d4db37c2bae77a1d4618b5ac01465a9885a0f
- SHA256
  
  5d711364f716a3ca2fc403dc12ba6d19ce33bffdc574723c1ab096f10d482b2f
- SHA512
  
  93eb2ac2523589e9990bf1b101278836a75abc9e62cef6294a94854edbd86c2259400d715a0436fed7d5af81b5ea3e7cf274ea085207eeab528eecc83cc747b2
- SSDEEP
  
  49152:Hgs8e44444444444444444444444444444444444444444444444444444444444:Hg
Score

10^/10

tofsee evasion execution 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 execution
- 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
- Drops file in System32 directory
- Suspicious use of SetThreadContext
behavioral1 behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

Service 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

tofseeevasionexecutionpersistencetrojan

behavioral2

tofseeevasionexecutionpersistencetrojan