Overview

overview

10

Static

static

35c35175c6...82.exe

windows7_x64

10

35c35175c6...82.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    35c35175c681c805e8b12413243324b24573f63533d649f0d88e2b8b58b90182

  • Size

    121KB

  • Sample

    220626-25el2aebcj

  • MD5

    dccd504e5e44c162e8461ad9ad286ee3

  • SHA1

    e2a68b76db070380809754b7a0fa1cf8a0786f27

  • SHA256

    35c35175c681c805e8b12413243324b24573f63533d649f0d88e2b8b58b90182

  • SHA512

    b52b884420af198361ee650ca61ee9b64463b89469d0d54c8a00c06cdf27ff201ecd6262c3dc3cb959d487c8040e2e3d993f8fc09e8f59bf8c5e74119a69ff04

Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      35c35175c681c805e8b12413243324b24573f63533d649f0d88e2b8b58b90182

    • Size

      121KB

    • MD5

      dccd504e5e44c162e8461ad9ad286ee3

    • SHA1

      e2a68b76db070380809754b7a0fa1cf8a0786f27

    • SHA256

      35c35175c681c805e8b12413243324b24573f63533d649f0d88e2b8b58b90182

    • SHA512

      b52b884420af198361ee650ca61ee9b64463b89469d0d54c8a00c06cdf27ff201ecd6262c3dc3cb959d487c8040e2e3d993f8fc09e8f59bf8c5e74119a69ff04

    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