Overview

overview

10

Static

static

file.exe

windows7-x64

10

file.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    file

  • Size

    167KB

  • Sample

    221125-12545sad82

  • MD5

    068af12a4fde5998014522a0e8eaeb06

  • SHA1

    e51abb1d6ef5a889b398a670c60f20cec46f7f95

  • SHA256

    ddeaca50e21813ebb8ee743cca315e0f1d7a05900d4369b652f68f5baeaa6f38

  • SHA512

    9b931733b2b6a478d639aa5cca89e36fe37d3a225277e985ae845a8362bd14186e59f879435ecd3a975010df752c9e8e9c8cedf62a760c87246383e22bdad71c

  • SSDEEP

    3072:zBl9IavvucboHS5J1VQErTHNXrDDJkbV5vw:h/HLboi/QEPVDlkB

Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Targets

    • Target

      file

    • Size

      167KB

    • MD5

      068af12a4fde5998014522a0e8eaeb06

    • SHA1

      e51abb1d6ef5a889b398a670c60f20cec46f7f95

    • SHA256

      ddeaca50e21813ebb8ee743cca315e0f1d7a05900d4369b652f68f5baeaa6f38

    • SHA512

      9b931733b2b6a478d639aa5cca89e36fe37d3a225277e985ae845a8362bd14186e59f879435ecd3a975010df752c9e8e9c8cedf62a760c87246383e22bdad71c

    • SSDEEP

      3072:zBl9IavvucboHS5J1VQErTHNXrDDJkbV5vw:h/HLboi/QEPVDlkB

    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

    • Executes dropped EXE

    • 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

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

New Service

1
T1050

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

New Service

1
T1050

Defense Evasion

Disabling Security Tools

1
T1089

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks