Overview

overview

10

Static

static

3

dc126faa29...5d.exe

windows7-x64

10

dc126faa29...5d.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    dc126faa29a2e26dbd95134059e682c28afee0e1a3d2573584c8226d838f735d

  • Size

    11.1MB

  • Sample

    240511-j63q5sgc8v

  • MD5

    0ad58678a408902fd64f7af414738868

  • SHA1

    c3f7da6f93660d26259ceafb4c4d13cb7160455e

  • SHA256

    dc126faa29a2e26dbd95134059e682c28afee0e1a3d2573584c8226d838f735d

  • SHA512

    2f441ca748ec8cd9e94a6759979caa64c30c1d10ba6931cf36288dd65596bc9445dec79d2b47bf3e2d9e82358a5ca05574513123c49f0eba23470585d3e68e54

  • SSDEEP

    12288:mSpmG/1+U3VGAnqy5iXBhULiprrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr:L/1+U3Q6ixyLi

Score
10/10
tofseeevasionexecutionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Targets

    • Target

      dc126faa29a2e26dbd95134059e682c28afee0e1a3d2573584c8226d838f735d

    • Size

      11.1MB

    • MD5

      0ad58678a408902fd64f7af414738868

    • SHA1

      c3f7da6f93660d26259ceafb4c4d13cb7160455e

    • SHA256

      dc126faa29a2e26dbd95134059e682c28afee0e1a3d2573584c8226d838f735d

    • SHA512

      2f441ca748ec8cd9e94a6759979caa64c30c1d10ba6931cf36288dd65596bc9445dec79d2b47bf3e2d9e82358a5ca05574513123c49f0eba23470585d3e68e54

    • SSDEEP

      12288:mSpmG/1+U3VGAnqy5iXBhULiprrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr:L/1+U3Q6ixyLi

    Score
    10/10
    tofseeevasionexecutionpersistencetrojan

    • 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 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