Overview

overview

10

Static

static

24e3aeee7c...de.exe

windows7_x64

10

24e3aeee7c...de.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    24e3aeee7c908f97b9f9966987ceddf33b21b64b4c0e0c9297ac8f04e5d3f0de

  • Size

    97KB

  • Sample

    220611-znc1rsccf3

  • MD5

    21bb978b116fa781407e7e0e7892d421

  • SHA1

    8fb6c24e60e94e3d526913d2854626fb9920c722

  • SHA256

    24e3aeee7c908f97b9f9966987ceddf33b21b64b4c0e0c9297ac8f04e5d3f0de

  • SHA512

    1a042994c4586cc394e48d72fd459bda60367363932ba8a7b580bac956c6a0442302e4a74eedfd57f0264b26121841a27a9b2ab6b96d54d832517ef79307adab

Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      24e3aeee7c908f97b9f9966987ceddf33b21b64b4c0e0c9297ac8f04e5d3f0de

    • Size

      97KB

    • MD5

      21bb978b116fa781407e7e0e7892d421

    • SHA1

      8fb6c24e60e94e3d526913d2854626fb9920c722

    • SHA256

      24e3aeee7c908f97b9f9966987ceddf33b21b64b4c0e0c9297ac8f04e5d3f0de

    • SHA512

      1a042994c4586cc394e48d72fd459bda60367363932ba8a7b580bac956c6a0442302e4a74eedfd57f0264b26121841a27a9b2ab6b96d54d832517ef79307adab

    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