tofsee | c0aea4faca6ebef23d42c4daa61585c835aaa69cb819a29bf67b03881469bf04 | Triage

Sharing

General

Target

fa05c055fc43c8c597197b590670ca85_JaffaCakes118
Size

13.6MB
Sample

240419-lmmxpadh88
MD5

fa05c055fc43c8c597197b590670ca85
SHA1

8b4e076dd4f300a82a21e255e14413737b575b4c
SHA256

c0aea4faca6ebef23d42c4daa61585c835aaa69cb819a29bf67b03881469bf04
SHA512

1455a615d3a8b3b0d50350da785784baf830f3b3b10cabaa19c7d97a112a3334fbcc0e5a0883b3fa77135f1f173185a83c44f7d113f82b21000e9fa6ca090798
SSDEEP

49152:KR88888888888888888888888888888888888888888888888888888888888884:

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.6

lazystax.ru

Targets

- Target
  
  fa05c055fc43c8c597197b590670ca85_JaffaCakes118
- Size
  
  13.6MB
- MD5
  
  fa05c055fc43c8c597197b590670ca85
- SHA1
  
  8b4e076dd4f300a82a21e255e14413737b575b4c
- SHA256
  
  c0aea4faca6ebef23d42c4daa61585c835aaa69cb819a29bf67b03881469bf04
- SHA512
  
  1455a615d3a8b3b0d50350da785784baf830f3b3b10cabaa19c7d97a112a3334fbcc0e5a0883b3fa77135f1f173185a83c44f7d113f82b21000e9fa6ca090798
- SSDEEP
  
  49152:KR88888888888888888888888888888888888888888888888888888888888884:
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