Overview

overview

10

Static

static

d99fdafe7f...fa.exe

windows7-x64

10

d99fdafe7f...fa.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    d99fdafe7f0e720d1ee19abe7a5af10f98f486407cbc23825bd0f6f19b7664fa

  • Size

    299KB

  • Sample

    220731-hmjcqaddd6

  • MD5

    572b56cf081eb05fd5e149c5c42d1750

  • SHA1

    a7400abf0762a08475b418a042b0d67155bda028

  • SHA256

    d99fdafe7f0e720d1ee19abe7a5af10f98f486407cbc23825bd0f6f19b7664fa

  • SHA512

    7d4d5bad69990ede43f1137ceec73e74fdcde90a1e253bf81773cee5f821dae25db4e8b005335ed961a6149fc690e4c75b7b677526fb398fe217882fa0bc6954

Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      d99fdafe7f0e720d1ee19abe7a5af10f98f486407cbc23825bd0f6f19b7664fa

    • Size

      299KB

    • MD5

      572b56cf081eb05fd5e149c5c42d1750

    • SHA1

      a7400abf0762a08475b418a042b0d67155bda028

    • SHA256

      d99fdafe7f0e720d1ee19abe7a5af10f98f486407cbc23825bd0f6f19b7664fa

    • SHA512

      7d4d5bad69990ede43f1137ceec73e74fdcde90a1e253bf81773cee5f821dae25db4e8b005335ed961a6149fc690e4c75b7b677526fb398fe217882fa0bc6954

    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