Overview

overview

10

Static

static

3

264492f5a3...0N.exe

windows7-x64

10

264492f5a3...0N.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    264492f5a3848a5b5939368dceb63ed0N

  • Size

    387KB

  • Sample

    240914-we1tpaxcqe

  • MD5

    264492f5a3848a5b5939368dceb63ed0

  • SHA1

    56f0394d689bd0a160b6be8a6554ffe050ff0353

  • SHA256

    9e63a0b8cee81a6872621af7656f617a6c31bb1dedb7647e45bfc36ad8b4fcac

  • SHA512

    ed8e223616670492216e9e336eff69297fb267c39e5dc87f7827d61a67263101aab0ff0d8ecc1f7ed1981cc3397b901690c020d6bc1a6e1a86ff312a7db78e85

  • SSDEEP

    6144:7B0321qBdyJvSHPSzvU6G4o77ll0rRcQZLGpxBY2dUWnvjV4pzf:76m4BdyUb6/oPjUmAQxB3dJJi

Score
10/10
tofseediscoveryevasionexecutionpersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

    • Target

      264492f5a3848a5b5939368dceb63ed0N

    • Size

      387KB

    • MD5

      264492f5a3848a5b5939368dceb63ed0

    • SHA1

      56f0394d689bd0a160b6be8a6554ffe050ff0353

    • SHA256

      9e63a0b8cee81a6872621af7656f617a6c31bb1dedb7647e45bfc36ad8b4fcac

    • SHA512

      ed8e223616670492216e9e336eff69297fb267c39e5dc87f7827d61a67263101aab0ff0d8ecc1f7ed1981cc3397b901690c020d6bc1a6e1a86ff312a7db78e85

    • SSDEEP

      6144:7B0321qBdyJvSHPSzvU6G4o77ll0rRcQZLGpxBY2dUWnvjV4pzf:76m4BdyUb6/oPjUmAQxB3dJJi

    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