Overview

overview

10

Static

static

a68fdcf20e...50.exe

windows7_x64

10

a68fdcf20e...50.exe

windows10_x64

10

Sharing

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General

  • Target

    a68fdcf20edd58c06346f6e88d7999a201d5e2592aa955e40645f363b253e150

  • Size

    11.9MB

  • Sample

    201115-s6yvjajjna

  • MD5

    8b67b5494864cc71ece704b8bb3fb2e8

  • SHA1

    3141e6c8be3b3b2891fb6cc5acd87b8dbddd0e7f

  • SHA256

    a68fdcf20edd58c06346f6e88d7999a201d5e2592aa955e40645f363b253e150

  • SHA512

    4f7bfc5d1d6fa5f2403a9958e169c45d1c140bc955b3568e0df9bc6a436afbd49184ee6f64c98cd3107712fcd406ce6ddf84b3112c3203dbf3c883a72071f484

Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Targets

    • Target

      a68fdcf20edd58c06346f6e88d7999a201d5e2592aa955e40645f363b253e150

    • Size

      11.9MB

    • MD5

      8b67b5494864cc71ece704b8bb3fb2e8

    • SHA1

      3141e6c8be3b3b2891fb6cc5acd87b8dbddd0e7f

    • SHA256

      a68fdcf20edd58c06346f6e88d7999a201d5e2592aa955e40645f363b253e150

    • SHA512

      4f7bfc5d1d6fa5f2403a9958e169c45d1c140bc955b3568e0df9bc6a436afbd49184ee6f64c98cd3107712fcd406ce6ddf84b3112c3203dbf3c883a72071f484

    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

    • Deletes itself

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Drops file in System32 directory

    • Modifies service

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

New Service

1
T1050

Modify Existing Service

2
T1031

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

New Service

1
T1050

Defense Evasion

Disabling Security Tools

1
T1089

Modify Registry

3
T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks