Overview

overview

10

Static

static

3

fdf33bcaac...18.exe

windows7-x64

10

fdf33bcaac...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    fdf33bcaac18604051afb04b0b52416f_JaffaCakes118

  • Size

    13.5MB

  • Sample

    240420-3zhxyadg9t

  • MD5

    fdf33bcaac18604051afb04b0b52416f

  • SHA1

    3a125b929ebaea43caf9700fa589d2329e38d019

  • SHA256

    1cfae1204e52198353fa94fd41d6d3496a316735d98f334eb300becdd837d90d

  • SHA512

    bd26dcdfcaa2d61498610613d5e8ca67699f234db3b906a6c982e957474c315e5cff30f9701692c0746eb8d0fab336f9f5a14cb3ffe21569004283599aad75f5

  • SSDEEP

    6144:m2BxZXDsssssssssssssssssssssssssssssssssssssssssssssssssssssssss:m4V

Score
10/10
tofseeevasionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      fdf33bcaac18604051afb04b0b52416f_JaffaCakes118

    • Size

      13.5MB

    • MD5

      fdf33bcaac18604051afb04b0b52416f

    • SHA1

      3a125b929ebaea43caf9700fa589d2329e38d019

    • SHA256

      1cfae1204e52198353fa94fd41d6d3496a316735d98f334eb300becdd837d90d

    • SHA512

      bd26dcdfcaa2d61498610613d5e8ca67699f234db3b906a6c982e957474c315e5cff30f9701692c0746eb8d0fab336f9f5a14cb3ffe21569004283599aad75f5

    • SSDEEP

      6144:m2BxZXDsssssssssssssssssssssssssssssssssssssssssssssssssssssssss:m4V

    Score
    10/10
    tofseeevasionpersistencetrojan

    • Tofsee

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

      trojantofsee

    • Windows security bypass

      evasiontrojan

    • Creates new service(s)

      persistence

    • 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 Matrix ATT&CK v13

Initial Access

Execution

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