Overview

overview

10

Static

static

3

8f6bbc6920...d3.exe

windows7-x64

10

8f6bbc6920...d3.exe

windows10-2004-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    8f6bbc692073146dfc23b5743a53d2abc158831b64964de5ec6a15cf573bf8d3

  • Size

    213KB

  • Sample

    240906-t7xxdsxeph

  • MD5

    9ad5cb5878facd1f519325f68cb408a1

  • SHA1

    64450bf9e67e5001835661493053e6ce67cc42b5

  • SHA256

    8f6bbc692073146dfc23b5743a53d2abc158831b64964de5ec6a15cf573bf8d3

  • SHA512

    5a45b850989000c24a25ac27a4ca3480bfed933912e7add4834f5c443486240d60d9a56a5418ca43ac0888898072de72cb029dfb29105560192937d10a93b0bd

  • SSDEEP

    6144:1DDXnqPnz5vSel6TKC1onDZ/MU0Vdh1HQ:1XXq/z5vSNKC1onDSVdz

Score
10/10
tofseediscoveryevasionexecutionpersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

    • Target

      8f6bbc692073146dfc23b5743a53d2abc158831b64964de5ec6a15cf573bf8d3

    • Size

      213KB

    • MD5

      9ad5cb5878facd1f519325f68cb408a1

    • SHA1

      64450bf9e67e5001835661493053e6ce67cc42b5

    • SHA256

      8f6bbc692073146dfc23b5743a53d2abc158831b64964de5ec6a15cf573bf8d3

    • SHA512

      5a45b850989000c24a25ac27a4ca3480bfed933912e7add4834f5c443486240d60d9a56a5418ca43ac0888898072de72cb029dfb29105560192937d10a93b0bd

    • SSDEEP

      6144:1DDXnqPnz5vSel6TKC1onDZ/MU0Vdh1HQ:1XXq/z5vSNKC1onDSVdz

    Score
    10/10
    tofseediscoveryevasionexecutionpersistenceprivilege_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

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks