Overview

overview

10

Static

static

3

fc3bb27a0c...18.exe

windows7-x64

10

fc3bb27a0c...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    fc3bb27a0cf68b519a1ff98126da4083_JaffaCakes118

  • Size

    10.4MB

  • Sample

    240420-h8jklsbe76

  • MD5

    fc3bb27a0cf68b519a1ff98126da4083

  • SHA1

    d52434e6d7326478e4d2931b379ed30c31ead569

  • SHA256

    57c5476b2f41ec87a6b74153c52b442d47172ad8f59a578e4ac6e902dec3be3f

  • SHA512

    8fded19f127deaa5d52d8c88b89009ebf1626ada44556fcc50e9cd048c399c31d89668232db2790afbbbf0072cb5806a7f00e92391c0815f39211cbf9c7ffcdc

  • SSDEEP

    3072:EOsUA8KZQ/IxsPVg4nkvzaHWgSjqdF0w2Uyopz9ZeCqJXXfehv1Ijoxw9xkaaaaK:eUA8GV2e4nYWHEjqPt9cCqxmhv1pxQ

Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Targets

    • Target

      fc3bb27a0cf68b519a1ff98126da4083_JaffaCakes118

    • Size

      10.4MB

    • MD5

      fc3bb27a0cf68b519a1ff98126da4083

    • SHA1

      d52434e6d7326478e4d2931b379ed30c31ead569

    • SHA256

      57c5476b2f41ec87a6b74153c52b442d47172ad8f59a578e4ac6e902dec3be3f

    • SHA512

      8fded19f127deaa5d52d8c88b89009ebf1626ada44556fcc50e9cd048c399c31d89668232db2790afbbbf0072cb5806a7f00e92391c0815f39211cbf9c7ffcdc

    • SSDEEP

      3072:EOsUA8KZQ/IxsPVg4nkvzaHWgSjqdF0w2Uyopz9ZeCqJXXfehv1Ijoxw9xkaaaaK:eUA8GV2e4nYWHEjqPt9cCqxmhv1pxQ

    Score
    10/10
    tofseeevasionpersistencetrojan

    • Tofsee

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

      trojantofsee

    • 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

1
T1562

Disable or Modify System Firewall

1
T1562.004

Modify Registry

1
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