Overview

overview

10

Static

static

3

f4c9ca0aae...18.exe

windows7-x64

10

f4c9ca0aae...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    f4c9ca0aae067a11649370278de2a937_JaffaCakes118

  • Size

    11.5MB

  • Sample

    240417-cbr8laae95

  • MD5

    f4c9ca0aae067a11649370278de2a937

  • SHA1

    e1fc4e42abfe1accb7e200d21f1f0d329838e81e

  • SHA256

    b3ef346a16f90c3811847840e66397ca8c9938707e37cfd274ee6bb9004c741d

  • SHA512

    8062c679c66c895dd3173ccfa56eacf6b5dbeaa6c5d60712ba3c59f05cddd053ff79209486fc0c9063973ba06e9aa32532d58cd74cf56a5e255b2550d95ae487

  • SSDEEP

    24576:OjCj10HSqGgeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeO:O/D

Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Targets

    • Target

      f4c9ca0aae067a11649370278de2a937_JaffaCakes118

    • Size

      11.5MB

    • MD5

      f4c9ca0aae067a11649370278de2a937

    • SHA1

      e1fc4e42abfe1accb7e200d21f1f0d329838e81e

    • SHA256

      b3ef346a16f90c3811847840e66397ca8c9938707e37cfd274ee6bb9004c741d

    • SHA512

      8062c679c66c895dd3173ccfa56eacf6b5dbeaa6c5d60712ba3c59f05cddd053ff79209486fc0c9063973ba06e9aa32532d58cd74cf56a5e255b2550d95ae487

    • SSDEEP

      24576:OjCj10HSqGgeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeO:O/D

    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