Overview

overview

10

Static

static

7

56c810d009...fd.exe

windows7-x64

10

56c810d009...fd.exe

windows10-2004-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    56c810d00957ea3eb8a5bc59ee7d5e04dde7c323131db0afff103c9830ae3bfd

  • Size

    11.3MB

  • Sample

    240510-f1qb3sdc4x

  • MD5

    aaac609f177376eeb5f5ce8c5320e85e

  • SHA1

    761a2bb1419572c47bf4d73a3f62b6b99059c043

  • SHA256

    56c810d00957ea3eb8a5bc59ee7d5e04dde7c323131db0afff103c9830ae3bfd

  • SHA512

    e15de40efac541439fce9e517b8377110c85c03df126f3b3e188eafbe9984acebc6dc9bdac9870870b89a43546e7ea99a9ed7af9c7ff21fadc8759cf4d8063ee

  • SSDEEP

    6144:qILpF81vOj1GcYGW5DSTLQaYpR/MUDoS:j84GcYGiDSLsoS

Score
10/10
tofseeevasionexecutionpersistencetrojanupx

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

    • Target

      56c810d00957ea3eb8a5bc59ee7d5e04dde7c323131db0afff103c9830ae3bfd

    • Size

      11.3MB

    • MD5

      aaac609f177376eeb5f5ce8c5320e85e

    • SHA1

      761a2bb1419572c47bf4d73a3f62b6b99059c043

    • SHA256

      56c810d00957ea3eb8a5bc59ee7d5e04dde7c323131db0afff103c9830ae3bfd

    • SHA512

      e15de40efac541439fce9e517b8377110c85c03df126f3b3e188eafbe9984acebc6dc9bdac9870870b89a43546e7ea99a9ed7af9c7ff21fadc8759cf4d8063ee

    • SSDEEP

      6144:qILpF81vOj1GcYGW5DSTLQaYpR/MUDoS:j84GcYGiDSLsoS

    Score
    10/10
    tofseeevasionexecutionpersistencetrojanupx

    • 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

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

System Services

1
T1569

Service Execution

1
T1569.002

Persistence

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Impair Defenses

2
T1562

Disable or Modify Tools

1
T1562.001

Disable or Modify System Firewall

1
T1562.004

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks