Overview

overview

10

Static

static

3d09b13385...6a.exe

windows7_x64

10

3d09b13385...6a.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    3d09b1338518359bce932c85f293e482c0f300173fff9a15c7f785d03d132a6a

  • Size

    98KB

  • Sample

    220703-e3sdsafbej

  • MD5

    64d99f54eb2c930bfe3aab70dd462137

  • SHA1

    ec87ef99e4a6080b01e708e0746dae89f704d120

  • SHA256

    3d09b1338518359bce932c85f293e482c0f300173fff9a15c7f785d03d132a6a

  • SHA512

    3c3b1397643347189af74fd470577c840683aa955ce87d2b1ce80d3abafb68629e29b4caaa7318612071ebd2f036e1a835f99da78d9183191e5073b3dd5aeac3

Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      3d09b1338518359bce932c85f293e482c0f300173fff9a15c7f785d03d132a6a

    • Size

      98KB

    • MD5

      64d99f54eb2c930bfe3aab70dd462137

    • SHA1

      ec87ef99e4a6080b01e708e0746dae89f704d120

    • SHA256

      3d09b1338518359bce932c85f293e482c0f300173fff9a15c7f785d03d132a6a

    • SHA512

      3c3b1397643347189af74fd470577c840683aa955ce87d2b1ce80d3abafb68629e29b4caaa7318612071ebd2f036e1a835f99da78d9183191e5073b3dd5aeac3

    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.

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • 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

2
T1060

Privilege Escalation

New Service

1
T1050

Defense Evasion

Disabling Security Tools

1
T1089

Modify Registry

3
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks