Overview

overview

10

Static

static

3

44dad11665...18.exe

windows7-x64

10

44dad11665...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    44dad11665cd5a9800ed08198ae7ebbc_JaffaCakes118

  • Size

    142KB

  • Sample

    240515-g2e36scf6z

  • MD5

    44dad11665cd5a9800ed08198ae7ebbc

  • SHA1

    b3ee9d36dc27527d6ea80a802f8fd80a6657a3d2

  • SHA256

    b90f0d7494597f2a6f1fe3ac4c6f9555ed52a9c969707765b7266cfad1310105

  • SHA512

    786ed557c674a91c525a5162b4b781b9092fd45c02ae282314ce8b7630365e4a46835c90b30c64196b9f56234675715212fd4a908c5ef92cec6babbbad839d78

  • SSDEEP

    3072:jO8/FLfg56rzTkYfiL2+jKfgi4m5nuGFU6W6WNE6b37:p9TzwFLnKP46uC

Score
10/10
tofseeevasionexecutionpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Targets

    • Target

      44dad11665cd5a9800ed08198ae7ebbc_JaffaCakes118

    • Size

      142KB

    • MD5

      44dad11665cd5a9800ed08198ae7ebbc

    • SHA1

      b3ee9d36dc27527d6ea80a802f8fd80a6657a3d2

    • SHA256

      b90f0d7494597f2a6f1fe3ac4c6f9555ed52a9c969707765b7266cfad1310105

    • SHA512

      786ed557c674a91c525a5162b4b781b9092fd45c02ae282314ce8b7630365e4a46835c90b30c64196b9f56234675715212fd4a908c5ef92cec6babbbad839d78

    • SSDEEP

      3072:jO8/FLfg56rzTkYfiL2+jKfgi4m5nuGFU6W6WNE6b37:p9TzwFLnKP46uC

    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

    • 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