Overview

overview

10

Static

static

3

fe7a83b2a9...18.exe

windows7-x64

10

fe7a83b2a9...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    fe7a83b2a9459c727de31bf862e8b412_JaffaCakes118

  • Size

    13.1MB

  • Sample

    240421-fjq72sca7z

  • MD5

    fe7a83b2a9459c727de31bf862e8b412

  • SHA1

    37cf0cf28262bfb9952fe203d09102ab00361c59

  • SHA256

    0458983712551856bbe9a43e57f2171cb6a11ca2ba7fb5cfbf70d937a9d52764

  • SHA512

    089ce3de2784486fe479e893da198c9de36cac7f8d4d4b72b0290892e3eb00ed829cb9b5794f8333857c6ad2f546f38df4ae9d19cb2a6c05dd17d6d3300b1296

  • SSDEEP

    49152:f3Skkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk:f3

Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.6

lazystax.ru

Targets

    • Target

      fe7a83b2a9459c727de31bf862e8b412_JaffaCakes118

    • Size

      13.1MB

    • MD5

      fe7a83b2a9459c727de31bf862e8b412

    • SHA1

      37cf0cf28262bfb9952fe203d09102ab00361c59

    • SHA256

      0458983712551856bbe9a43e57f2171cb6a11ca2ba7fb5cfbf70d937a9d52764

    • SHA512

      089ce3de2784486fe479e893da198c9de36cac7f8d4d4b72b0290892e3eb00ed829cb9b5794f8333857c6ad2f546f38df4ae9d19cb2a6c05dd17d6d3300b1296

    • SSDEEP

      49152:f3Skkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk:f3

    Score
    10/10
    tofseeevasionpersistencetrojan

    • Tofsee

      Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

      trojantofsee

    • Windows security bypass

      evasiontrojan

    • 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

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Impair Defenses

2
T1562

Disable or Modify Tools

1
T1562.001

Disable or Modify System Firewall

1
T1562.004

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks