Overview

overview

10

Static

static

19cd7ad722...cf.exe

windows7_x64

10

19cd7ad722...cf.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    19cd7ad7229f202403df4755e341f3b8856150a773217ea70fe7c8be52ad8fcf

  • Size

    142KB

  • Sample

    220608-f1zwhsegh6

  • MD5

    70780b64e4a6d98605af8971d4c087ea

  • SHA1

    862b12cfea6bf1c5e636f58e8bcdaf89482c94af

  • SHA256

    19cd7ad7229f202403df4755e341f3b8856150a773217ea70fe7c8be52ad8fcf

  • SHA512

    cbdfdf35c0f31aaf4870709aa07c3c93edf8c5b504d39f44838e9ffc4d7eeee3483e9c3a6c98a92d1fcdbb3e0e585127f0635c535575faa2509f9dbd54ac3950

Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      19cd7ad7229f202403df4755e341f3b8856150a773217ea70fe7c8be52ad8fcf

    • Size

      142KB

    • MD5

      70780b64e4a6d98605af8971d4c087ea

    • SHA1

      862b12cfea6bf1c5e636f58e8bcdaf89482c94af

    • SHA256

      19cd7ad7229f202403df4755e341f3b8856150a773217ea70fe7c8be52ad8fcf

    • SHA512

      cbdfdf35c0f31aaf4870709aa07c3c93edf8c5b504d39f44838e9ffc4d7eeee3483e9c3a6c98a92d1fcdbb3e0e585127f0635c535575faa2509f9dbd54ac3950

    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