Overview

overview

10

Static

static

3

ST.exe

windows11-21h2-x64

10

Resubmissions

26-02-2024 17:00

240226-vh9ekabb89 10

26-02-2024 14:38

240226-rz6s8age24 10

26-02-2024 14:15

240226-rkxa8sga28 10

26-02-2024 13:00

240226-p82vhseb99 10

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General

  • Target

    ST.exe

  • Size

    56KB

  • Sample

    240226-rz6s8age24

  • MD5

    1829b29bd700013b213b66ae95592845

  • SHA1

    07c1535e947419ece58a3f27dfef52c8e4da01ff

  • SHA256

    e67b8937b56c354ff06e857361f8860860f913a63f79427cf37db741ffcb02a1

  • SHA512

    a9d4eba671ba80f6c5ebc002dd26b3ad482f73540303fa3feb0f46575c4de63bc532026ddae27e94bb610581c174d9d1b728e05d38fb193b6c800c238c2329a5

  • SSDEEP

    1536:QNeRBl5PT/rx1mzwRMSTdLpJcOS9XtH1r4h:QQRrmzwR5JNSvH4

Score
10/10
phobosevasionpersistenceransomwarespywarestealer

Malware Config

Targets

    • Target

      ST.exe

    • Size

      56KB

    • MD5

      1829b29bd700013b213b66ae95592845

    • SHA1

      07c1535e947419ece58a3f27dfef52c8e4da01ff

    • SHA256

      e67b8937b56c354ff06e857361f8860860f913a63f79427cf37db741ffcb02a1

    • SHA512

      a9d4eba671ba80f6c5ebc002dd26b3ad482f73540303fa3feb0f46575c4de63bc532026ddae27e94bb610581c174d9d1b728e05d38fb193b6c800c238c2329a5

    • SSDEEP

      1536:QNeRBl5PT/rx1mzwRMSTdLpJcOS9XtH1r4h:QQRrmzwR5JNSvH4

    Score
    10/10
    phobosevasionpersistenceransomwarespywarestealer

    • Phobos

      Phobos ransomware appeared at the beginning of 2019.

      ransomwarephobos

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomware

    • Modifies boot configuration data using bcdedit

      ransomwareevasion

    • Renames multiple (213) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

      ransomware

    • Deletes backup catalog

      Uses wbadmin.exe to inhibit system recovery.

      ransomware

    • Modifies Windows Firewall

      evasion

    • Drops startup file

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Adds Run key to start application

      persistence

    • Drops desktop.ini file(s)

    behavioral1

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Defense Evasion

Impair Defenses

1
T1562

Disable or Modify System Firewall

1
T1562.004

Indicator Removal

3
T1070

File Deletion

3
T1070.004

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Peripheral Device Discovery

1
T1120

Query Registry

2
T1012

System Information Discovery

1
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Inhibit System Recovery

4
T1490

Tasks