Overview

overview

10

Static

static

3

JaffaCakes...a2.exe

windows7-x64

10

JaffaCakes...a2.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    JaffaCakes118_c95de79d76a72a2b6ce211f6a626f575a5f6df83726a25acb84ebf3d095650a2

  • Size

    290KB

  • Sample

    241225-v32v8a1jak

  • MD5

    e758d3f8e1a43e4b8fd0c982394216a0

  • SHA1

    b8713215a45d83019881f18215f044bac9073a4f

  • SHA256

    c95de79d76a72a2b6ce211f6a626f575a5f6df83726a25acb84ebf3d095650a2

  • SHA512

    fd099504787bf3644253ea503cc742ad07fb1abfc96524649137050c9f597950a0686749df76a6afcf54698d7cfe91d24e6062d1f99132b784b9ffac0357493f

  • SSDEEP

    6144:cKda0k5CPY6+hdbbIPyISpx+dGYIS2oWPfG/5J:cK2cPP+hdbbIapKt2O

Score
10/10
tofseediscoveryevasionexecutionpersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

tofsee

C2

niflheimr.cn

jotunheim.name

Targets

    • Target

      JaffaCakes118_c95de79d76a72a2b6ce211f6a626f575a5f6df83726a25acb84ebf3d095650a2

    • Size

      290KB

    • MD5

      e758d3f8e1a43e4b8fd0c982394216a0

    • SHA1

      b8713215a45d83019881f18215f044bac9073a4f

    • SHA256

      c95de79d76a72a2b6ce211f6a626f575a5f6df83726a25acb84ebf3d095650a2

    • SHA512

      fd099504787bf3644253ea503cc742ad07fb1abfc96524649137050c9f597950a0686749df76a6afcf54698d7cfe91d24e6062d1f99132b784b9ffac0357493f

    • SSDEEP

      6144:cKda0k5CPY6+hdbbIPyISpx+dGYIS2oWPfG/5J:cK2cPP+hdbbIapKt2O

    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