tofsee | 914014bdfa54711f0be7ff00b7438aa023468c87494e7ec207ae9f3e543f3d69 | Triage

Sharing

General

Target

f5fc0244fac4d1134685531500b89a07_JaffaCakes118
Size

11.7MB
Sample

240417-rtqj2sca36
MD5

f5fc0244fac4d1134685531500b89a07
SHA1

5e378f0c50c6680eb17f41939ea0e2859a16cf46
SHA256

914014bdfa54711f0be7ff00b7438aa023468c87494e7ec207ae9f3e543f3d69
SHA512

f1d3e9924913692e495c3268814202b6d6c6598cdbcde0b21f9b34f058a25ef744f8bc814bb7a2df1c73ea25a659e7a1ed2bd77b9be83742e0870875b334c769
SSDEEP

12288:TRXQK44fy611111111111111111111111111111111111111111111111111111H:TRx2

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

- Target
  
  f5fc0244fac4d1134685531500b89a07_JaffaCakes118
- Size
  
  11.7MB
- MD5
  
  f5fc0244fac4d1134685531500b89a07
- SHA1
  
  5e378f0c50c6680eb17f41939ea0e2859a16cf46
- SHA256
  
  914014bdfa54711f0be7ff00b7438aa023468c87494e7ec207ae9f3e543f3d69
- SHA512
  
  f1d3e9924913692e495c3268814202b6d6c6598cdbcde0b21f9b34f058a25ef744f8bc814bb7a2df1c73ea25a659e7a1ed2bd77b9be83742e0870875b334c769
- SSDEEP
  
  12288:TRXQK44fy611111111111111111111111111111111111111111111111111111H:TRx2
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