Overview

overview

10

Static

static

3

74d8ea75ea...ed.exe

windows7-x64

10

74d8ea75ea...ed.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    5ca926323ee94836ddb1b595c5361e9f731ddf584921d0689df0e1c573104585

  • Size

    166KB

  • Sample

    240417-qhkzraae3y

  • MD5

    cc22b638c0c86a75a188d527f106b7d7

  • SHA1

    74783181a98087dd93e5c2dfa21505267e328908

  • SHA256

    5ca926323ee94836ddb1b595c5361e9f731ddf584921d0689df0e1c573104585

  • SHA512

    cf88a06900bf95060893f2a647f5df1f1d3f0adf2fd2b2f42869f8aefe1a6c2cceb145f22614ba4df08adb82cfed5cf1f0f98689913415e90c183f4ad6a866b8

  • SSDEEP

    3072:crKrp7mvwQ6Vjq8f8s927tyN66aYdpRaaoIabEaTw1IKE6HeM6lkR8xfNl1:2CKzsq8fn92I66LUapIKJ+9A8v7

Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

    • Target

      74d8ea75eaa0b08203bd607fc7b03b96ea3c45f5fda7d883d8587db4b85c1bed.exe

    • Size

      307KB

    • MD5

      3d4b04ef5fa77beaeef043f5a0fe5912

    • SHA1

      ad07caff0de5987592a648fbb9d4f240c088ac2a

    • SHA256

      74d8ea75eaa0b08203bd607fc7b03b96ea3c45f5fda7d883d8587db4b85c1bed

    • SHA512

      f6f3be5f5e78d4a97a96b8f1ed9d816000d063e3ec16e65ab3617cd86c28b68e0e4a5d5a835c36df731482541fe494b7d625d989adc7f176686d6178441ae959

    • SSDEEP

      3072:FIc+GjPykq8OdTpVbv+XeC6jRxK2s2mUn5wMT2UXdZ315U:mw7yFB1v7jjK3hMTFNhM

    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

    • 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 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

2
T1562

Disable or Modify Tools

1
T1562.001

Disable or Modify System Firewall

1
T1562.004

Modify Registry

2
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