Overview

overview

10

Static

static

504afc470a...4e.exe

windows7-x64

10

504afc470a...4e.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    504afc470ab13dda6174b9841cd9e72c02a3e06280ad31fec4d963f723255f4e

  • Size

    137KB

  • Sample

    220719-ehsttaaeaj

  • MD5

    bd3bdb1b7fc2f3fde188a2e79338cf30

  • SHA1

    34e98f613f0e7cfbe6bfae4f3318b648dfa00485

  • SHA256

    504afc470ab13dda6174b9841cd9e72c02a3e06280ad31fec4d963f723255f4e

  • SHA512

    79417a065cbe56699406717c6725f0e7a6c782e8714408d3e97de79b63ea4a3d6335d1d17d9146230a6f960f9a40097a2b419fac74bc589a21d64c3e6b7f3fd1

Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      504afc470ab13dda6174b9841cd9e72c02a3e06280ad31fec4d963f723255f4e

    • Size

      137KB

    • MD5

      bd3bdb1b7fc2f3fde188a2e79338cf30

    • SHA1

      34e98f613f0e7cfbe6bfae4f3318b648dfa00485

    • SHA256

      504afc470ab13dda6174b9841cd9e72c02a3e06280ad31fec4d963f723255f4e

    • SHA512

      79417a065cbe56699406717c6725f0e7a6c782e8714408d3e97de79b63ea4a3d6335d1d17d9146230a6f960f9a40097a2b419fac74bc589a21d64c3e6b7f3fd1

    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