Overview

overview

10

Static

static

5134552a33...7d.exe

windows7-x64

10

5134552a33...7d.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    5134552a33b485a25270b8b78068b22fb46ff20267f92f690ee31a2046b9297d

  • Size

    352KB

  • Sample

    220718-vl1ltsafe9

  • MD5

    9acfb27a482a0ac42cd9caf72a24545c

  • SHA1

    b8c2d6639427c9343383ce21eff355974ea550a4

  • SHA256

    5134552a33b485a25270b8b78068b22fb46ff20267f92f690ee31a2046b9297d

  • SHA512

    edf966e22dba430d66718ae0a7cfc6d2b4c5b92a3eb8092872dbfb8221bc70bcb868c4a044e9323923582b3cb0d4580d7eb81201282119ff3a33c94995b9014f

Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      5134552a33b485a25270b8b78068b22fb46ff20267f92f690ee31a2046b9297d

    • Size

      352KB

    • MD5

      9acfb27a482a0ac42cd9caf72a24545c

    • SHA1

      b8c2d6639427c9343383ce21eff355974ea550a4

    • SHA256

      5134552a33b485a25270b8b78068b22fb46ff20267f92f690ee31a2046b9297d

    • SHA512

      edf966e22dba430d66718ae0a7cfc6d2b4c5b92a3eb8092872dbfb8221bc70bcb868c4a044e9323923582b3cb0d4580d7eb81201282119ff3a33c94995b9014f

    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