Overview

overview

10

Static

static

3

JaffaCakes...94.exe

windows7-x64

10

JaffaCakes...94.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    JaffaCakes118_1972daa7b5cc048abec1c5e6f802b05707e2b5025af43913f16ebba7c1a7e294

  • Size

    263KB

  • Sample

    241222-bv7a7axqgp

  • MD5

    5659f39ef371145b3d22f748cfa56f3e

  • SHA1

    e215ff11440c44b44e948bbc54a254687404fe5d

  • SHA256

    1972daa7b5cc048abec1c5e6f802b05707e2b5025af43913f16ebba7c1a7e294

  • SHA512

    3c2d1b3dad5c5657dc93485e46e929a86541225fd7c63c2f1b0df5b9c745c9d6cea9d9b78959d2d59e65018714229900070305d7e8fab270c5a16d0fc190cfbd

  • SSDEEP

    6144:1dWb9Di3mz70r6uIdSP3PGUt/YnZiTeyqnhl2adcPdno:/Ug2cuuIdSP3PGoYhhMaWd

Score
10/10
tofseediscoveryevasionexecutionpersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

tofsee

C2

niflheimr.cn

jotunheim.name

Targets

    • Target

      JaffaCakes118_1972daa7b5cc048abec1c5e6f802b05707e2b5025af43913f16ebba7c1a7e294

    • Size

      263KB

    • MD5

      5659f39ef371145b3d22f748cfa56f3e

    • SHA1

      e215ff11440c44b44e948bbc54a254687404fe5d

    • SHA256

      1972daa7b5cc048abec1c5e6f802b05707e2b5025af43913f16ebba7c1a7e294

    • SHA512

      3c2d1b3dad5c5657dc93485e46e929a86541225fd7c63c2f1b0df5b9c745c9d6cea9d9b78959d2d59e65018714229900070305d7e8fab270c5a16d0fc190cfbd

    • SSDEEP

      6144:1dWb9Di3mz70r6uIdSP3PGUt/YnZiTeyqnhl2adcPdno:/Ug2cuuIdSP3PGoYhhMaWd

    Score
    10/10
    tofseediscoveryevasionexecutionpersistenceprivilege_escalationtrojan

    • Tofsee

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

      trojantofsee

    • Tofsee family

      tofsee

    • Windows security bypass

      evasiontrojan

    • Creates new service(s)

      persistenceexecution

    • 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

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1
T1569

Service Execution

1
T1569.002

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Defense Evasion

Impair Defenses

2
T1562

Disable or Modify System Firewall

1
T1562.004

Disable or Modify Tools

1
T1562.001

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks