Overview

overview

10

Static

static

559761803b...78.exe

windows7-x64

10

559761803b...78.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    559761803b195f7451158b3f142fc3eec2411a5decd14346564e66c9ee94fb78

  • Size

    99KB

  • Sample

    220725-s1njpscdd6

  • MD5

    bd9639044643025556c8fbd6271fe5e5

  • SHA1

    3bedbea22ced1f577ba4925400b36a615221b72b

  • SHA256

    559761803b195f7451158b3f142fc3eec2411a5decd14346564e66c9ee94fb78

  • SHA512

    131f147c38e09778f35ebae81b8fab8fbd2a00f2ca49ef81092c3848e3f1645f51b263bdc6828a4c84c6998fe4f44c2b7f6afa9bf86fe2b153e2d0e894898393

Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      559761803b195f7451158b3f142fc3eec2411a5decd14346564e66c9ee94fb78

    • Size

      99KB

    • MD5

      bd9639044643025556c8fbd6271fe5e5

    • SHA1

      3bedbea22ced1f577ba4925400b36a615221b72b

    • SHA256

      559761803b195f7451158b3f142fc3eec2411a5decd14346564e66c9ee94fb78

    • SHA512

      131f147c38e09778f35ebae81b8fab8fbd2a00f2ca49ef81092c3848e3f1645f51b263bdc6828a4c84c6998fe4f44c2b7f6afa9bf86fe2b153e2d0e894898393

    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