Overview

overview

10

Static

static

3

e5e504710b...00.exe

windows7-x64

10

e5e504710b...00.exe

windows10-2004-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    e5e504710b99893aea0e451eacfb7c62839a131303977db144bb8b5c1fca2200.exe

  • Size

    139KB

  • Sample

    241209-sj7agswqbp

  • MD5

    2ae457d156c22881f61b52e2c1cad0d2

  • SHA1

    4fcdcda539765d33c716903c319120b880cacb3f

  • SHA256

    e5e504710b99893aea0e451eacfb7c62839a131303977db144bb8b5c1fca2200

  • SHA512

    1eb581073f17dbe3a5f13c6924d8d00b7b7affed5ee3c26c27e2082abaccd8b379f32c5ed4c83bcd642db68ac978357cbe3d9aee641ba31f2eb97f76a407ca2a

  • SSDEEP

    3072:z1LM23IP5rlPTB4Nx13iVXxoFKlRtPnf:dMVlWxpiVhoqRtPf

Score
10/10
tofseediscoveryevasionexecutionpersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Targets

    • Target

      e5e504710b99893aea0e451eacfb7c62839a131303977db144bb8b5c1fca2200.exe

    • Size

      139KB

    • MD5

      2ae457d156c22881f61b52e2c1cad0d2

    • SHA1

      4fcdcda539765d33c716903c319120b880cacb3f

    • SHA256

      e5e504710b99893aea0e451eacfb7c62839a131303977db144bb8b5c1fca2200

    • SHA512

      1eb581073f17dbe3a5f13c6924d8d00b7b7affed5ee3c26c27e2082abaccd8b379f32c5ed4c83bcd642db68ac978357cbe3d9aee641ba31f2eb97f76a407ca2a

    • SSDEEP

      3072:z1LM23IP5rlPTB4Nx13iVXxoFKlRtPnf:dMVlWxpiVhoqRtPf

    Score
    10/10
    tofseediscoveryevasionexecutionpersistenceprivilege_escalationtrojan

    • Tofsee

      Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

      trojantofsee

    • Tofsee family

      tofsee

    • 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