Overview

overview

10

Static

static

3

JaffaCakes...6f.exe

windows7-x64

10

JaffaCakes...6f.exe

windows10-2004-x64

10

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General

  • Target

    JaffaCakes118_1de61f619fa0533fb1b90d506d18b80b49d738264d2d96822c8600a696a2546f

  • Size

    277KB

  • Sample

    241224-sh5p9szpat

  • MD5

    886521f6b302733ec56fa74e9eee797c

  • SHA1

    426770987d11b12e6b9709a7064a143e39a2adbc

  • SHA256

    1de61f619fa0533fb1b90d506d18b80b49d738264d2d96822c8600a696a2546f

  • SHA512

    a267361d9f84755a8346a303c3ea7f65ee6b7a721c124fe12ba67531509d3ad2d9c3cf6f35fc0b29922f619e8f4a96895c29305c91894a476023fb508a5a01d9

  • SSDEEP

    3072:Hdh4rj43qHj/zjgRYR6lVatBLufQxMmYq7sxkgaBCh:f4rj46/zjgRI2atBLTMYQiga

Score
10/10
tofseediscoveryevasionexecutionpersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

tofsee

C2

niflheimr.cn

jotunheim.name

Targets

    • Target

      JaffaCakes118_1de61f619fa0533fb1b90d506d18b80b49d738264d2d96822c8600a696a2546f

    • Size

      277KB

    • MD5

      886521f6b302733ec56fa74e9eee797c

    • SHA1

      426770987d11b12e6b9709a7064a143e39a2adbc

    • SHA256

      1de61f619fa0533fb1b90d506d18b80b49d738264d2d96822c8600a696a2546f

    • SHA512

      a267361d9f84755a8346a303c3ea7f65ee6b7a721c124fe12ba67531509d3ad2d9c3cf6f35fc0b29922f619e8f4a96895c29305c91894a476023fb508a5a01d9

    • SSDEEP

      3072:Hdh4rj43qHj/zjgRYR6lVatBLufQxMmYq7sxkgaBCh:f4rj46/zjgRI2atBLTMYQiga

    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

    • 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