tofsee | e254728f6f9e3a2a0e2add68c71cb9901fc89e74518e9bfa5ff65505c217c41c | Triage

Sharing

General

Target

fc3952f3e3c67a63a838d5cbf390b675_JaffaCakes118
Size

14.4MB
Sample

240420-h434fsca8v
MD5

fc3952f3e3c67a63a838d5cbf390b675
SHA1

c27d62c6c6382a853603139bd5d179ad77c077b8
SHA256

e254728f6f9e3a2a0e2add68c71cb9901fc89e74518e9bfa5ff65505c217c41c
SHA512

c546ebe17819c78123abbaa198cd55f1d108585596cd1964f594f5dae6e0546d1defdabc76b0c9bea801ccc8de9a8ed2761b477afd3dd8f560a340d407c13708
SSDEEP

98304:Yjhd88888888888888888888888888888888888888888888888888888888888I:Y

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

C2

176.111.174.19

lazystax.ru

Targets

- Target
  
  fc3952f3e3c67a63a838d5cbf390b675_JaffaCakes118
- Size
  
  14.4MB
- MD5
  
  fc3952f3e3c67a63a838d5cbf390b675
- SHA1
  
  c27d62c6c6382a853603139bd5d179ad77c077b8
- SHA256
  
  e254728f6f9e3a2a0e2add68c71cb9901fc89e74518e9bfa5ff65505c217c41c
- SHA512
  
  c546ebe17819c78123abbaa198cd55f1d108585596cd1964f594f5dae6e0546d1defdabc76b0c9bea801ccc8de9a8ed2761b477afd3dd8f560a340d407c13708
- SSDEEP
  
  98304:Yjhd88888888888888888888888888888888888888888888888888888888888I:Y
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