Overview

overview

10

Static

static

1788c90e47...95.exe

windows7_x64

10

1788c90e47...95.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    1788c90e47e33020a545656cf59b5f557a93d90e449cd356d578309e71a5c195

  • Size

    143KB

  • Sample

    220608-ze4gcscch3

  • MD5

    aad43b23811400fcc73d8c22b4420660

  • SHA1

    a9230effebe05616919532d05e2506ed503bd422

  • SHA256

    1788c90e47e33020a545656cf59b5f557a93d90e449cd356d578309e71a5c195

  • SHA512

    b928c25bf1e18f45ff91ce307f90186724d4c750702459b3da9672794245488adcc1280132bf342ae76a5c9b1a6cdb9220ce26ae675b0591fc0da38917a29005

Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      1788c90e47e33020a545656cf59b5f557a93d90e449cd356d578309e71a5c195

    • Size

      143KB

    • MD5

      aad43b23811400fcc73d8c22b4420660

    • SHA1

      a9230effebe05616919532d05e2506ed503bd422

    • SHA256

      1788c90e47e33020a545656cf59b5f557a93d90e449cd356d578309e71a5c195

    • SHA512

      b928c25bf1e18f45ff91ce307f90186724d4c750702459b3da9672794245488adcc1280132bf342ae76a5c9b1a6cdb9220ce26ae675b0591fc0da38917a29005

    Score
    10/10
    tofseeevasionpersistencetrojan

    • Tofsee

      Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

      trojantofsee

    • 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

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks