Overview

overview

10

Static

static

3

892d52a127...51.exe

windows7-x64

10

892d52a127...51.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    892d52a127cf179e7f2430a3089d6751.virus

  • Size

    13.7MB

  • Sample

    240917-mx2dhayhjr

  • MD5

    892d52a127cf179e7f2430a3089d6751

  • SHA1

    37d424fbb05030b85372619f90d49dfb3163b516

  • SHA256

    0e9c337b32f1b91661c0aa92183242ca766a24f0e2ced39622076a00f07324db

  • SHA512

    80a284d3ec88d27f78d78cb40de26f0e57ab36c09ebc302dca668196f95c6cf4bd09181c1f2e64bc77e326a5f8994110075d185fc7b845e2314c54923a901960

  • SSDEEP

    12288:qkcLVukCo8F8JeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMu:qkkYkCoD

Score
10/10
tofseediscoveryevasionexecutionpersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Targets

    • Target

      892d52a127cf179e7f2430a3089d6751.virus

    • Size

      13.7MB

    • MD5

      892d52a127cf179e7f2430a3089d6751

    • SHA1

      37d424fbb05030b85372619f90d49dfb3163b516

    • SHA256

      0e9c337b32f1b91661c0aa92183242ca766a24f0e2ced39622076a00f07324db

    • SHA512

      80a284d3ec88d27f78d78cb40de26f0e57ab36c09ebc302dca668196f95c6cf4bd09181c1f2e64bc77e326a5f8994110075d185fc7b845e2314c54923a901960

    • SSDEEP

      12288:qkcLVukCo8F8JeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMu:qkkYkCoD

    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

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • 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