Overview

overview

10

Static

static

3

e7cbfa5aae...85.exe

windows7-x64

10

e7cbfa5aae...85.exe

windows10-2004-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    e7cbfa5aae79143963b287f82b5897bf0131161937fbf040fa5785692afd4d85

  • Size

    14.2MB

  • Sample

    250103-xqt1ysykhs

  • MD5

    1a7967c2003e283817f70289b300ea43

  • SHA1

    5e68b49e7b17bf6873dd5b76a74f7bd8063d596e

  • SHA256

    e7cbfa5aae79143963b287f82b5897bf0131161937fbf040fa5785692afd4d85

  • SHA512

    725cd0e3073e708c3489710e25aa6c4715ff7933223cb1a03f47f36b8dcb30574fdc7e7bf5bbc9eed4c53cae2688bdfff6acf679ca4a7d9077a14e80df9dd5f1

  • SSDEEP

    3072:S1MBkxvfGaF/FzWb9VT5aLj/JSC5kJwSFjhvoGECaNwxAk8Je8Je8Je8Je8Je8Jl:Jk5FOkjRSC6SS+N+

Score
10/10
tofseediscoveryevasionexecutionpersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

    • Target

      e7cbfa5aae79143963b287f82b5897bf0131161937fbf040fa5785692afd4d85

    • Size

      14.2MB

    • MD5

      1a7967c2003e283817f70289b300ea43

    • SHA1

      5e68b49e7b17bf6873dd5b76a74f7bd8063d596e

    • SHA256

      e7cbfa5aae79143963b287f82b5897bf0131161937fbf040fa5785692afd4d85

    • SHA512

      725cd0e3073e708c3489710e25aa6c4715ff7933223cb1a03f47f36b8dcb30574fdc7e7bf5bbc9eed4c53cae2688bdfff6acf679ca4a7d9077a14e80df9dd5f1

    • SSDEEP

      3072:S1MBkxvfGaF/FzWb9VT5aLj/JSC5kJwSFjhvoGECaNwxAk8Je8Je8Je8Je8Je8Jl:Jk5FOkjRSC6SS+N+

    Score
    10/10
    tofseediscoveryevasionexecutionpersistenceprivilege_escalationtrojan

    • Tofsee

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

      trojantofsee

    • Tofsee family

      tofsee

    • 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

    • 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

1
T1562

Disable or Modify System Firewall

1
T1562.004

Modify Registry

1
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