Overview

overview

10

Static

static

3

c2b875ec37...2f.exe

windows7-x64

10

c2b875ec37...2f.exe

windows10-2004-x64

10

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General

  • Target

    c2b875ec37a9272c9f6913e5e51c8c2f.bin

  • Size

    13.8MB

  • Sample

    240703-drfeeavcpa

  • MD5

    c2b875ec37a9272c9f6913e5e51c8c2f

  • SHA1

    25f1fcfd9bf08b879bb1fd13a42578e72cc3ad98

  • SHA256

    bb07448d9a17097cf6476c0adc3b3443d942b30049de82590351b66fccacb4ca

  • SHA512

    6c285a552db5de631f5e293292c4bcd426fb982579113c4817c84d9d9a72702cf7038d62b3c3ec1814c6bb1ef0a99f5603dd92e31d5ed89f0f163855e0759350

  • SSDEEP

    6144:x+rWO2zeSPDjMXMH7Ll4aFpWVqIwUAP97GEwHrG2+e1x2:x+r1IeSXMXc7LlxWV4Ug97GZ+ej

Score
10/10
tofseeevasionexecutionpersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      c2b875ec37a9272c9f6913e5e51c8c2f.bin

    • Size

      13.8MB

    • MD5

      c2b875ec37a9272c9f6913e5e51c8c2f

    • SHA1

      25f1fcfd9bf08b879bb1fd13a42578e72cc3ad98

    • SHA256

      bb07448d9a17097cf6476c0adc3b3443d942b30049de82590351b66fccacb4ca

    • SHA512

      6c285a552db5de631f5e293292c4bcd426fb982579113c4817c84d9d9a72702cf7038d62b3c3ec1814c6bb1ef0a99f5603dd92e31d5ed89f0f163855e0759350

    • SSDEEP

      6144:x+rWO2zeSPDjMXMH7Ll4aFpWVqIwUAP97GEwHrG2+e1x2:x+r1IeSXMXc7LlxWV4Ug97GZ+ej

    Score
    10/10
    tofseeevasionexecutionpersistenceprivilege_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

    • 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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks