tofsee | 7e8a5dedb5852ba8f9f3970c0204657611bb7b3e8009c019e7105b7528111403 | Triage

Sharing

General

Target

79214841917d19ed5226a021dd2d8c7d_JaffaCakes118
Size

120KB
Sample

240527-pg5r4acg54
MD5

79214841917d19ed5226a021dd2d8c7d
SHA1

48082025c975b8e060ed37fac928df5ebcd6375f
SHA256

7e8a5dedb5852ba8f9f3970c0204657611bb7b3e8009c019e7105b7528111403
SHA512

8f82b620de851ee6bc45d77aa01b0fc9876c2168319b3fd78bc08cb0a01871238e755b266e6413fe8c464d32d5d3bd7b32600752c3be55a9eb9281c4008a9fe5
SSDEEP

3072:tOLuSAK9akBThPFu6wJnpo33ebEvTHM4O:wE2aiFkJnpjbEjM4

Score

10^/10

tofsee evasion execution persistence trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

- Target
  
  79214841917d19ed5226a021dd2d8c7d_JaffaCakes118
- Size
  
  120KB
- MD5
  
  79214841917d19ed5226a021dd2d8c7d
- SHA1
  
  48082025c975b8e060ed37fac928df5ebcd6375f
- SHA256
  
  7e8a5dedb5852ba8f9f3970c0204657611bb7b3e8009c019e7105b7528111403
- SHA512
  
  8f82b620de851ee6bc45d77aa01b0fc9876c2168319b3fd78bc08cb0a01871238e755b266e6413fe8c464d32d5d3bd7b32600752c3be55a9eb9281c4008a9fe5
- SSDEEP
  
  3072:tOLuSAK9akBThPFu6wJnpo33ebEvTHM4O:wE2aiFkJnpjbEjM4
Score

10^/10

tofsee evasion execution 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 execution
- 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

System Services

Service 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

tofseeevasionexecutionpersistencetrojan

behavioral2

tofseeevasionexecutionpersistencetrojan