Overview

overview

10

Static

static

10

102e925269...c4.exe

windows7-x64

10

102e925269...c4.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    102e9252691dc8857840ffae6582731c2077bff8ac04d054407ba804a058e9c4.com

  • Size

    10.2MB

  • Sample

    241001-nl3ymaxbjr

  • MD5

    eb701a894f2e3202f26d9e0199a6d440

  • SHA1

    4f635af1c4e7669ad5522c999bc632d9d4d53a9a

  • SHA256

    102e9252691dc8857840ffae6582731c2077bff8ac04d054407ba804a058e9c4

  • SHA512

    d87d3b460fd9948da454df80ecde3b49700760bc15c3f3dc0391875fccec8911b29c7e1c88a31c031d2ed40295adcbee0cbcdde612b1225e3d8f1ccf7f7b6df7

  • SSDEEP

    6144:UDVCynACXFFpI0zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzj:k8vmFFp

Score
10/10
tofseediscoveryevasionexecutionpersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

    • Target

      102e9252691dc8857840ffae6582731c2077bff8ac04d054407ba804a058e9c4.com

    • Size

      10.2MB

    • MD5

      eb701a894f2e3202f26d9e0199a6d440

    • SHA1

      4f635af1c4e7669ad5522c999bc632d9d4d53a9a

    • SHA256

      102e9252691dc8857840ffae6582731c2077bff8ac04d054407ba804a058e9c4

    • SHA512

      d87d3b460fd9948da454df80ecde3b49700760bc15c3f3dc0391875fccec8911b29c7e1c88a31c031d2ed40295adcbee0cbcdde612b1225e3d8f1ccf7f7b6df7

    • SSDEEP

      6144:UDVCynACXFFpI0zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzj:k8vmFFp

    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