Overview

overview

10

Static

static

ba91ffb597...cd.exe

windows7-x64

10

ba91ffb597...cd.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    ba91ffb597778dc5526826dde9715282049d0732d08df54314c1087056d7fbcd

  • Size

    81KB

  • Sample

    221130-2h24tabd77

  • MD5

    aaf4a34a5d5d298ef5b02a4ac71378c6

  • SHA1

    96b74f49bd95c0b18a5e22ff9bac7da3ebce1835

  • SHA256

    ba91ffb597778dc5526826dde9715282049d0732d08df54314c1087056d7fbcd

  • SHA512

    ca22dc85572108ee699502e28bfec15f5fc8ad6424705eb2aa51a75b99ffc95e189ad6f7d9cc48a1c0cbb68b78fe9ffaa9ec0baa9fd2180d4b3f47a96574dea6

  • SSDEEP

    1536:iO6tyJjl87GWuWK6RpoBlJ/rkvgGYD3UH:iO6tyJkGHL6verggpUH

Score
10/10
tofseepersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

185.4.227.76

188.165.132.183

rgtryhbgddtyh.biz

wertdghbyrukl.ch

Targets

    • Target

      ba91ffb597778dc5526826dde9715282049d0732d08df54314c1087056d7fbcd

    • Size

      81KB

    • MD5

      aaf4a34a5d5d298ef5b02a4ac71378c6

    • SHA1

      96b74f49bd95c0b18a5e22ff9bac7da3ebce1835

    • SHA256

      ba91ffb597778dc5526826dde9715282049d0732d08df54314c1087056d7fbcd

    • SHA512

      ca22dc85572108ee699502e28bfec15f5fc8ad6424705eb2aa51a75b99ffc95e189ad6f7d9cc48a1c0cbb68b78fe9ffaa9ec0baa9fd2180d4b3f47a96574dea6

    • SSDEEP

      1536:iO6tyJjl87GWuWK6RpoBlJ/rkvgGYD3UH:iO6tyJkGHL6verggpUH

    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.

    • Deletes itself

    • Loads dropped DLL

    • 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