Overview

overview

10

Static

static

31eaa3ab50...29.exe

windows7_x64

10

31eaa3ab50...29.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    31eaa3ab5036dcea2e51802b5323f8ead2bee421b053e45fd5163dc947bf0a29

  • Size

    188KB

  • Sample

    220620-vwqvdagafp

  • MD5

    1105de805f1450aa298c8e1a4e66032b

  • SHA1

    b37cc2df88bdd24e6132b1cff5d541df8d14fe69

  • SHA256

    31eaa3ab5036dcea2e51802b5323f8ead2bee421b053e45fd5163dc947bf0a29

  • SHA512

    6630672aca0d671ac3f8f6cd970139a1eae713ce3f911d1488d2c594178dc2bba6f1fc574a456c7829027f6a6f4e8660c5e76f83fde9fd98ecc91201e10e3699

Score
10/10
tofseepersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

103.232.222.57

111.121.193.242

123.249.0.22

Targets

    • Target

      31eaa3ab5036dcea2e51802b5323f8ead2bee421b053e45fd5163dc947bf0a29

    • Size

      188KB

    • MD5

      1105de805f1450aa298c8e1a4e66032b

    • SHA1

      b37cc2df88bdd24e6132b1cff5d541df8d14fe69

    • SHA256

      31eaa3ab5036dcea2e51802b5323f8ead2bee421b053e45fd5163dc947bf0a29

    • SHA512

      6630672aca0d671ac3f8f6cd970139a1eae713ce3f911d1488d2c594178dc2bba6f1fc574a456c7829027f6a6f4e8660c5e76f83fde9fd98ecc91201e10e3699

    Score
    10/10
    tofseepersistencetrojan

    • Tofsee

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

      trojantofsee

    • Executes dropped EXE

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Deletes itself

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

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