tofsee | 202c56cd60883f77bd154c3c45240a558edfe75f8480646e301256383f067b1f | Triage

Sharing

General

Target

f21b1d37cc4a41eb2dfde780fa798b93_JaffaCakes118
Size

11.0MB
Sample

240415-2rxwfscd81
MD5

f21b1d37cc4a41eb2dfde780fa798b93
SHA1

0c72b83f361d3e80e02cc0865f418f6c0ce2b364
SHA256

202c56cd60883f77bd154c3c45240a558edfe75f8480646e301256383f067b1f
SHA512

c4d1c452b8192385023271d5c9085cb0ede9f00a754fbf9caad3a8fc06da66ff6d47ffdfb1bf2a69e176211d83ef8c05ec18df54fbd8d3cae287700a0579cdaa
SSDEEP

6144:dJuJ6WaImz/SmCBZ0DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDz:vubnW/Sm

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

- Target
  
  f21b1d37cc4a41eb2dfde780fa798b93_JaffaCakes118
- Size
  
  11.0MB
- MD5
  
  f21b1d37cc4a41eb2dfde780fa798b93
- SHA1
  
  0c72b83f361d3e80e02cc0865f418f6c0ce2b364
- SHA256
  
  202c56cd60883f77bd154c3c45240a558edfe75f8480646e301256383f067b1f
- SHA512
  
  c4d1c452b8192385023271d5c9085cb0ede9f00a754fbf9caad3a8fc06da66ff6d47ffdfb1bf2a69e176211d83ef8c05ec18df54fbd8d3cae287700a0579cdaa
- SSDEEP
  
  6144:dJuJ6WaImz/SmCBZ0DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDz:vubnW/Sm
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