Overview

overview

10

Static

static

568bdd6fb9...51.exe

windows7-x64

10

568bdd6fb9...51.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    568bdd6fb9671d0f9cd3d2843d20aca0cae45ec57fff154b0b0c439af8f00b51

  • Size

    142KB

  • Sample

    220725-c7w7esbfel

  • MD5

    048725634c77ed7223cd9b91d90b172b

  • SHA1

    40628d5ffe1bbd7915a628938a8acac0d9c77ba3

  • SHA256

    568bdd6fb9671d0f9cd3d2843d20aca0cae45ec57fff154b0b0c439af8f00b51

  • SHA512

    ad87648a4003832c7ec6129b2745c119c693f99628295cb318d285b8c5ca23d8ec0a4682fdbe3e8a880de0f6e9b84ed78ae3279c457477d5d6a2b27f1284446c

Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      568bdd6fb9671d0f9cd3d2843d20aca0cae45ec57fff154b0b0c439af8f00b51

    • Size

      142KB

    • MD5

      048725634c77ed7223cd9b91d90b172b

    • SHA1

      40628d5ffe1bbd7915a628938a8acac0d9c77ba3

    • SHA256

      568bdd6fb9671d0f9cd3d2843d20aca0cae45ec57fff154b0b0c439af8f00b51

    • SHA512

      ad87648a4003832c7ec6129b2745c119c693f99628295cb318d285b8c5ca23d8ec0a4682fdbe3e8a880de0f6e9b84ed78ae3279c457477d5d6a2b27f1284446c

    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