Overview

overview

10

Static

static

3

6ffdd95672...6d.exe

windows7-x64

10

6ffdd95672...6d.exe

windows10-2004-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    6ffdd95672c25985f18119f284ffe3afd4bdbf8a20fea561b9cda90810338c6d

  • Size

    245KB

  • Sample

    240720-vt25mawcmj

  • MD5

    9b3caff8f9a37d16d84f8e7b224c277f

  • SHA1

    ddb6d3c4aa2dd7795964c04a159dfeb04ea4bc50

  • SHA256

    6ffdd95672c25985f18119f284ffe3afd4bdbf8a20fea561b9cda90810338c6d

  • SHA512

    d21e10bcafeed3279a50c3f03c839bf493840525208144802db64eb4ee516d782494519cae8278ebe87000ed735e3ebc1c6aeefe482c6dbe406da62c21459678

  • SSDEEP

    3072:dW1kXVPnGwhRH7DCT+cODJIHGfngWKKaedh1VUrE/LlhEI2U9JweV:dWQPGE7D4+cOWHGfnvKKB1bVVbwe

Score
10/10
tofseeevasionexecutionpersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

    • Target

      6ffdd95672c25985f18119f284ffe3afd4bdbf8a20fea561b9cda90810338c6d

    • Size

      245KB

    • MD5

      9b3caff8f9a37d16d84f8e7b224c277f

    • SHA1

      ddb6d3c4aa2dd7795964c04a159dfeb04ea4bc50

    • SHA256

      6ffdd95672c25985f18119f284ffe3afd4bdbf8a20fea561b9cda90810338c6d

    • SHA512

      d21e10bcafeed3279a50c3f03c839bf493840525208144802db64eb4ee516d782494519cae8278ebe87000ed735e3ebc1c6aeefe482c6dbe406da62c21459678

    • SSDEEP

      3072:dW1kXVPnGwhRH7DCT+cODJIHGfngWKKaedh1VUrE/LlhEI2U9JweV:dWQPGE7D4+cOWHGfnvKKB1bVVbwe

    Score
    10/10
    tofseeevasionexecutionpersistenceprivilege_escalationtrojan

    • Tofsee

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

      trojantofsee

    • Windows security bypass

      evasiontrojan

    • Creates new service(s)

      persistenceexecution

    • 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

    • Executes dropped EXE

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1
T1569

Service Execution

1
T1569.002

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Defense Evasion

Impair Defenses

2
T1562

Disable or Modify System Firewall

1
T1562.004

Disable or Modify Tools

1
T1562.001

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks