Overview

overview

10

Static

static

0f46fce8d6...d8.exe

windows7_x64

10

0f46fce8d6...d8.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    0f46fce8d6203de3ea82a70f7abddfbf95850f7b1356ac967e05d955aa1566d8

  • Size

    98KB

  • Sample

    220604-tlylsseda9

  • MD5

    b34b1258a1e5b89d9fbdd9aac4c47bec

  • SHA1

    8f1550ed6e666752230cf637c71743512a6dda45

  • SHA256

    0f46fce8d6203de3ea82a70f7abddfbf95850f7b1356ac967e05d955aa1566d8

  • SHA512

    1bb74f49b3e37f60afc80c607460e451e143856a0a7212ef3136dc34ecb3969e27370b7fc5266ff73fd8eab62b5155d96a8288fb247f6104a1a911130dc306d5

Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      0f46fce8d6203de3ea82a70f7abddfbf95850f7b1356ac967e05d955aa1566d8

    • Size

      98KB

    • MD5

      b34b1258a1e5b89d9fbdd9aac4c47bec

    • SHA1

      8f1550ed6e666752230cf637c71743512a6dda45

    • SHA256

      0f46fce8d6203de3ea82a70f7abddfbf95850f7b1356ac967e05d955aa1566d8

    • SHA512

      1bb74f49b3e37f60afc80c607460e451e143856a0a7212ef3136dc34ecb3969e27370b7fc5266ff73fd8eab62b5155d96a8288fb247f6104a1a911130dc306d5

    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