Overview

overview

10

Static

static

5da40e2bd0...08.exe

windows7-x64

10

5da40e2bd0...08.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    5da40e2bd0bbe8d8c6fe3e010e43d231861cc69dcb3252ee5dbe70c60f3e1808

  • Size

    102KB

  • Sample

    220731-2sqhrscghm

  • MD5

    b179524b99b575e5f77cee6207521f13

  • SHA1

    1b7edee9230f3468841a979e11eb9e310c584103

  • SHA256

    5da40e2bd0bbe8d8c6fe3e010e43d231861cc69dcb3252ee5dbe70c60f3e1808

  • SHA512

    42a812884d687121adab289cd28659b006a215e65bf7a58e88d723513fd6573ce274881e576ae021df5a0370674cad60f64ee02863ee277acf0021b9544a6f5b

Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      5da40e2bd0bbe8d8c6fe3e010e43d231861cc69dcb3252ee5dbe70c60f3e1808

    • Size

      102KB

    • MD5

      b179524b99b575e5f77cee6207521f13

    • SHA1

      1b7edee9230f3468841a979e11eb9e310c584103

    • SHA256

      5da40e2bd0bbe8d8c6fe3e010e43d231861cc69dcb3252ee5dbe70c60f3e1808

    • SHA512

      42a812884d687121adab289cd28659b006a215e65bf7a58e88d723513fd6573ce274881e576ae021df5a0370674cad60f64ee02863ee277acf0021b9544a6f5b

    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