Overview

overview

10

Static

static

47928adfc1...09.exe

windows7_x64

10

47928adfc1...09.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    47928adfc11031207af45d0fcb73e5845ac4f0390e147933b60f394c7e5e5109

  • Size

    99KB

  • Sample

    220714-gy63gsced5

  • MD5

    e7d3abe310423c6747b7c0dbc868abbc

  • SHA1

    821ed9d41bffa460460fb4d30fdcf611c79eb907

  • SHA256

    47928adfc11031207af45d0fcb73e5845ac4f0390e147933b60f394c7e5e5109

  • SHA512

    fb3826fb561188c81b81617a87d37742ff3e6fa2d6d2146e534d15bf8ee03f09aea28115c1c36444e0c70053ceec86c4f13ac880d2c5136a3e92d4d07f2790e4

Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      47928adfc11031207af45d0fcb73e5845ac4f0390e147933b60f394c7e5e5109

    • Size

      99KB

    • MD5

      e7d3abe310423c6747b7c0dbc868abbc

    • SHA1

      821ed9d41bffa460460fb4d30fdcf611c79eb907

    • SHA256

      47928adfc11031207af45d0fcb73e5845ac4f0390e147933b60f394c7e5e5109

    • SHA512

      fb3826fb561188c81b81617a87d37742ff3e6fa2d6d2146e534d15bf8ee03f09aea28115c1c36444e0c70053ceec86c4f13ac880d2c5136a3e92d4d07f2790e4

    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