Overview

overview

10

Static

static

34c414bf27...8c.exe

windows7_x64

10

34c414bf27...8c.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    34c414bf27ed2603e855e7ad3578a9ac86b03faa1a7db3278cedead5ffa1458c

  • Size

    104KB

  • Sample

    220619-yv5tpaddd4

  • MD5

    b8aefed6abece4f59edf9567a0cafed5

  • SHA1

    df318db2b549a7a6e6bf51fbf3a55627bc8a8f1c

  • SHA256

    34c414bf27ed2603e855e7ad3578a9ac86b03faa1a7db3278cedead5ffa1458c

  • SHA512

    c7671d6482045f57db20d9c4e5113843b32af79d0a7f04f916caa44d83a8f0a7733801d7cf202e52418432a79cbd324947a8583ae39866b5619889f4ddb69bdf

Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      34c414bf27ed2603e855e7ad3578a9ac86b03faa1a7db3278cedead5ffa1458c

    • Size

      104KB

    • MD5

      b8aefed6abece4f59edf9567a0cafed5

    • SHA1

      df318db2b549a7a6e6bf51fbf3a55627bc8a8f1c

    • SHA256

      34c414bf27ed2603e855e7ad3578a9ac86b03faa1a7db3278cedead5ffa1458c

    • SHA512

      c7671d6482045f57db20d9c4e5113843b32af79d0a7f04f916caa44d83a8f0a7733801d7cf202e52418432a79cbd324947a8583ae39866b5619889f4ddb69bdf

    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