Overview

overview

10

Static

static

3

5ffda142aa...30.exe

windows7-x64

10

5ffda142aa...30.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    5ffda142aa321a2b5546c426a28403d7f19b51b88985c8617f11c04411489e30.exe

  • Size

    416KB

  • Sample

    241012-bt2pbazblp

  • MD5

    e4352f63724267bed81e8c199bd8ca0f

  • SHA1

    ce9c69ca36920f076fe1369be4d9001085ca8602

  • SHA256

    5ffda142aa321a2b5546c426a28403d7f19b51b88985c8617f11c04411489e30

  • SHA512

    afe8786dade10b520aeee40fc661d0f86b370e2c0272be3a462033cdc4b9cf91ddf8a2f2f6628c478da8736dbd7704d8da3b577c5afeb053db79dad1556c8bc4

  • SSDEEP

    3072://IcJg7uMwZi9VaiI2PLP7zIyMDWVYvVtKHpA6PYYNp/GG7Ig7LRACfij5+U/p49:HH0uMvGiI2PLgW4upRfJGuLmHsU

Score
10/10
tofseediscoveryevasionexecutionpersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

    • Target

      5ffda142aa321a2b5546c426a28403d7f19b51b88985c8617f11c04411489e30.exe

    • Size

      416KB

    • MD5

      e4352f63724267bed81e8c199bd8ca0f

    • SHA1

      ce9c69ca36920f076fe1369be4d9001085ca8602

    • SHA256

      5ffda142aa321a2b5546c426a28403d7f19b51b88985c8617f11c04411489e30

    • SHA512

      afe8786dade10b520aeee40fc661d0f86b370e2c0272be3a462033cdc4b9cf91ddf8a2f2f6628c478da8736dbd7704d8da3b577c5afeb053db79dad1556c8bc4

    • SSDEEP

      3072://IcJg7uMwZi9VaiI2PLP7zIyMDWVYvVtKHpA6PYYNp/GG7Ig7LRACfij5+U/p49:HH0uMvGiI2PLgW4upRfJGuLmHsU

    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