Overview

overview

10

Static

static

5c3b9c929c...59.exe

windows7-x64

10

5c3b9c929c...59.exe

windows10-2004-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    5c3b9c929cac14277c3f810b57a487a6093470e3b4fd56ac65ab2d3f6b4e9959

  • Size

    153KB

  • Sample

    220801-smzptaaed8

  • MD5

    c8f91e493d1e36838e613915dea38aef

  • SHA1

    b4b6ae99c4ba7bfefbfab627c41702a458cbefc1

  • SHA256

    5c3b9c929cac14277c3f810b57a487a6093470e3b4fd56ac65ab2d3f6b4e9959

  • SHA512

    62d2b5b49721969479efade45d43da049e3c1cadef12b7ef0b996a5e35bca5ac4acb27fefb77e0e4494aefead3fb363934d7116def0298a9e4106c1cb4c99830

Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      5c3b9c929cac14277c3f810b57a487a6093470e3b4fd56ac65ab2d3f6b4e9959

    • Size

      153KB

    • MD5

      c8f91e493d1e36838e613915dea38aef

    • SHA1

      b4b6ae99c4ba7bfefbfab627c41702a458cbefc1

    • SHA256

      5c3b9c929cac14277c3f810b57a487a6093470e3b4fd56ac65ab2d3f6b4e9959

    • SHA512

      62d2b5b49721969479efade45d43da049e3c1cadef12b7ef0b996a5e35bca5ac4acb27fefb77e0e4494aefead3fb363934d7116def0298a9e4106c1cb4c99830

    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