Overview

overview

10

Static

static

547ef5bd9c...a1.exe

windows7-x64

3

547ef5bd9c...a1.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    547ef5bd9c5caa12e7e066844f1156d4fc8a6268bff272024a525689c7eabca1

  • Size

    164KB

  • Sample

    220725-xs1xaabbe8

  • MD5

    3ba8dc8d24da92095584ea015e34a30c

  • SHA1

    5c846a3f3b861d566fef2d70afe59ed35c82fecf

  • SHA256

    547ef5bd9c5caa12e7e066844f1156d4fc8a6268bff272024a525689c7eabca1

  • SHA512

    5f2666e937a9eb6889c081460846544d45824f5c491858af804830d7d6b0baa468cf2262f585e80f3e5d6b7a4c38ec22153af983411b36d333605f197cf471e3

Score
10/10
tofseepersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

103.232.222.57

111.121.193.242

123.249.0.22

Targets

    • Target

      547ef5bd9c5caa12e7e066844f1156d4fc8a6268bff272024a525689c7eabca1

    • Size

      164KB

    • MD5

      3ba8dc8d24da92095584ea015e34a30c

    • SHA1

      5c846a3f3b861d566fef2d70afe59ed35c82fecf

    • SHA256

      547ef5bd9c5caa12e7e066844f1156d4fc8a6268bff272024a525689c7eabca1

    • SHA512

      5f2666e937a9eb6889c081460846544d45824f5c491858af804830d7d6b0baa468cf2262f585e80f3e5d6b7a4c38ec22153af983411b36d333605f197cf471e3

    Score
    10/10
    tofseepersistencetrojan

    • Tofsee

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

      trojantofsee

    • Executes dropped EXE

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

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