tofsee | 1e2a56bfb27bbdef81f7fb668e42e104e0ac2503ee75710e0a057cec0c6df76e | Triage

Sharing

General

Target

88c17f3f1763b8423d393baba1e9b4c7_JaffaCakes118
Size

142KB
Sample

240531-3q514saf45
MD5

88c17f3f1763b8423d393baba1e9b4c7
SHA1

c11443fcf1f4571548045b4b607dc28a8d0e01b8
SHA256

1e2a56bfb27bbdef81f7fb668e42e104e0ac2503ee75710e0a057cec0c6df76e
SHA512

81e61204ed87245c027097a948398675d0a42de3789fa0424046885fd87dcacfcff852163e215f2b9ac83578c3ad47f896363d0d843f1bef17a9b2051a998203
SSDEEP

3072:ClHB+LO7fIsSSoJvnra4BcwfMq/eTW8q7k9f:h6foJDDBcwt/vS

Score

10^/10

tofsee evasion execution persistence trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

- Target
  
  88c17f3f1763b8423d393baba1e9b4c7_JaffaCakes118
- Size
  
  142KB
- MD5
  
  88c17f3f1763b8423d393baba1e9b4c7
- SHA1
  
  c11443fcf1f4571548045b4b607dc28a8d0e01b8
- SHA256
  
  1e2a56bfb27bbdef81f7fb668e42e104e0ac2503ee75710e0a057cec0c6df76e
- SHA512
  
  81e61204ed87245c027097a948398675d0a42de3789fa0424046885fd87dcacfcff852163e215f2b9ac83578c3ad47f896363d0d843f1bef17a9b2051a998203
- SSDEEP
  
  3072:ClHB+LO7fIsSSoJvnra4BcwfMq/eTW8q7k9f:h6foJDDBcwt/vS
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