Overview

overview

10

Static

static

5b3ed204bf...11.exe

windows7-x64

10

5b3ed204bf...11.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    5b3ed204bf794afc4d32c750e74a219c4730b2a96ded36c6ea2753581158ab11

  • Size

    138KB

  • Sample

    220802-atfamscgfm

  • MD5

    9e23db864b9cc771a31f1ee21d7d418c

  • SHA1

    8f510bac94a035d004d2f995e5ec7d11e48a057c

  • SHA256

    5b3ed204bf794afc4d32c750e74a219c4730b2a96ded36c6ea2753581158ab11

  • SHA512

    d0efd4f3089ad8fcbbe782f49753edf4fee3884ebc82a86c172a5615e0758bdeb030c25468e7b46da1b6668daa7a9f6ee24a8e08a08b29c87edaba0cd7fa7c2d

Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      5b3ed204bf794afc4d32c750e74a219c4730b2a96ded36c6ea2753581158ab11

    • Size

      138KB

    • MD5

      9e23db864b9cc771a31f1ee21d7d418c

    • SHA1

      8f510bac94a035d004d2f995e5ec7d11e48a057c

    • SHA256

      5b3ed204bf794afc4d32c750e74a219c4730b2a96ded36c6ea2753581158ab11

    • SHA512

      d0efd4f3089ad8fcbbe782f49753edf4fee3884ebc82a86c172a5615e0758bdeb030c25468e7b46da1b6668daa7a9f6ee24a8e08a08b29c87edaba0cd7fa7c2d

    Score
    10/10
    tofseeevasionpersistencetrojan

    • Tofsee

      Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

      trojantofsee

    • 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

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks