tofsee | 6670134716742f25ab7cfdb33b8c7f0bf13b7d1e91e7874dc20453e4db6ac5d2 | Triage

Sharing

General

Target

f9ec5ae920b6df2fdc1fc070bd598b1a_JaffaCakes118
Size

14.7MB
Sample

240419-khwtcsdh5t
MD5

f9ec5ae920b6df2fdc1fc070bd598b1a
SHA1

798a610c2aa02e0f0b58920a72febd23cae00f64
SHA256

6670134716742f25ab7cfdb33b8c7f0bf13b7d1e91e7874dc20453e4db6ac5d2
SHA512

73976041df720c3dac6fbc9c78bed41ab1ca9e18ffde3c0f4ad8d3e042a02a0b3e2568a1dbca8a6d86ece2ba0a683876af5ca11f9cdd656364c09b450790a6a7
SSDEEP

98304:ONWUlllllllllllllllllllllllllllllllllllllllllllllllllllllllllll7:cW

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

- Target
  
  f9ec5ae920b6df2fdc1fc070bd598b1a_JaffaCakes118
- Size
  
  14.7MB
- MD5
  
  f9ec5ae920b6df2fdc1fc070bd598b1a
- SHA1
  
  798a610c2aa02e0f0b58920a72febd23cae00f64
- SHA256
  
  6670134716742f25ab7cfdb33b8c7f0bf13b7d1e91e7874dc20453e4db6ac5d2
- SHA512
  
  73976041df720c3dac6fbc9c78bed41ab1ca9e18ffde3c0f4ad8d3e042a02a0b3e2568a1dbca8a6d86ece2ba0a683876af5ca11f9cdd656364c09b450790a6a7
- SSDEEP
  
  98304:ONWUlllllllllllllllllllllllllllllllllllllllllllllllllllllllllll7:cW
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