Overview

overview

10

Static

static

3

24c566337e...60.exe

windows7-x64

10

24c566337e...60.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    24c566337e1f6cd3bfefaee2712ac3b50d09d3017a60e3530325b3a9b455e660

  • Size

    292KB

  • Sample

    240721-wyeqka1ekj

  • MD5

    45a768a817294222febe38b11e8c5350

  • SHA1

    48370775c6d91c4079551a4c6397b5aca6a7a98a

  • SHA256

    24c566337e1f6cd3bfefaee2712ac3b50d09d3017a60e3530325b3a9b455e660

  • SHA512

    a707d3a43a04d0a07a203c21d609002d6c2dd8d6584134cfd871cdd27150d6f5e88949b6ee6d029e3690e906abb393232140c00e31299c2995d07fe5629da1b6

  • SSDEEP

    6144:5+kAPhmN4QCnKjUI+5zx2rBniCtqxg/Q+:GsNHCnKjq5VfCtiu

Score
10/10
tofseeevasionexecutionpersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

    • Target

      24c566337e1f6cd3bfefaee2712ac3b50d09d3017a60e3530325b3a9b455e660

    • Size

      292KB

    • MD5

      45a768a817294222febe38b11e8c5350

    • SHA1

      48370775c6d91c4079551a4c6397b5aca6a7a98a

    • SHA256

      24c566337e1f6cd3bfefaee2712ac3b50d09d3017a60e3530325b3a9b455e660

    • SHA512

      a707d3a43a04d0a07a203c21d609002d6c2dd8d6584134cfd871cdd27150d6f5e88949b6ee6d029e3690e906abb393232140c00e31299c2995d07fe5629da1b6

    • SSDEEP

      6144:5+kAPhmN4QCnKjUI+5zx2rBniCtqxg/Q+:GsNHCnKjq5VfCtiu

    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

    • 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