Overview

overview

10

Static

static

3

43f846c12c...fc.exe

windows7-x64

10

43f846c12c...fc.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    176-Phobos.zip

  • Size

    39KB

  • Sample

    240723-jn6p3swclr

  • MD5

    fd04e1ab2bacdd5baedaf6242fb79e41

  • SHA1

    c73ff7888457c98a8d775c96035e6bc259c1d747

  • SHA256

    9090b682c6219cb43f01d5b3342356ae85685992fac80e5e08667b54439932ea

  • SHA512

    58cf5cb8653281581cb3d7c68cabc1e2962b9314af63328f3ccdf45385c29292eec2d533ed2daa9ec7957f23202756e3ff35a367596c777a8868b98e75eccfa1

  • SSDEEP

    768:4+SW2AEywpVJU/61jKxYp6vlvybVtA0sUhTvhwKR59Fpel9j4dkpG/:dF2ppVJJ2mg0sUhTmqjFpS9cdk0/

Score
10/10
phobosdefense_evasionevasionexecutionimpactpersistenceprivilege_escalationransomwarespywarestealer

Malware Config

Targets

    • Target

      43f846c12c24a078ebe33f71e8ea3b4f75107aeb275e2c3cd9dc61617c9757fc

    • Size

      55KB

    • MD5

      4e93c194b641d9b849f270531ec14d20

    • SHA1

      8b5a21254a0c10e3ca2570eeba490755197b544e

    • SHA256

      43f846c12c24a078ebe33f71e8ea3b4f75107aeb275e2c3cd9dc61617c9757fc

    • SHA512

      0c6dba53321b00a7b17bde84598de18cad9ecdae1a36209b6f13a99df96abe86987c2cbef132c6bc0ce80de75b4ad15351abd8c0c8e5c83bc17bb4f64713f2ec

    • SSDEEP

      1536:YNeRBl5PT/rx1mzwRMSTdLpJZtqoQOcO:YQRrmzwR5JAOF

    Score
    10/10
    phobosdefense_evasionevasionexecutionimpactpersistenceprivilege_escalationransomwarespywarestealer

    • Phobos

      Phobos ransomware appeared at the beginning of 2019.

      ransomwarephobos

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Modifies boot configuration data using bcdedit

      ransomwareevasion

    • Renames multiple (63) 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

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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)

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

Windows Management Instrumentation

1
T1047

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

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

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Defense Evasion

Direct Volume Access

1
T1006

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

3
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Inhibit System Recovery

4
T1490

Tasks