tofsee | 4a65362140edf6266596e78a1b3617381d9e6654310eee10aa5206e364b73bc7 | Triage

Sharing

General

Target

9484d5c263bbb436280dc8c8c1872e44_JaffaCakes118
Size

142KB
Sample

240604-mnsp1aea53
MD5

9484d5c263bbb436280dc8c8c1872e44
SHA1

a7e0a7a440f7fdb7f59bfc02a3fd5a01391e9786
SHA256

4a65362140edf6266596e78a1b3617381d9e6654310eee10aa5206e364b73bc7
SHA512

230774d0112ea62d6821d9672a8906be05251018e9ef193c5695c72afd409e8b718e95c7d4645b2317346d2484852ab47157a4b046ba10aa2114af8ff816c99a
SSDEEP

3072:NO8/FLfg16rzTkYfiL2+jKfgi4m5nuGFU6W6WNE6b3A:X9rzwFLnKP46uC

Score

10^/10

tofsee evasion execution persistence trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

- Target
  
  9484d5c263bbb436280dc8c8c1872e44_JaffaCakes118
- Size
  
  142KB
- MD5
  
  9484d5c263bbb436280dc8c8c1872e44
- SHA1
  
  a7e0a7a440f7fdb7f59bfc02a3fd5a01391e9786
- SHA256
  
  4a65362140edf6266596e78a1b3617381d9e6654310eee10aa5206e364b73bc7
- SHA512
  
  230774d0112ea62d6821d9672a8906be05251018e9ef193c5695c72afd409e8b718e95c7d4645b2317346d2484852ab47157a4b046ba10aa2114af8ff816c99a
- SSDEEP
  
  3072:NO8/FLfg16rzTkYfiL2+jKfgi4m5nuGFU6W6WNE6b3A:X9rzwFLnKP46uC
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
- 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