Overview

overview

10

Static

static

3

2a8353551d...08.exe

windows7-x64

10

2a8353551d...08.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    560eb48d1b2104f4dc3b1607bf42b35e35dfe81272675040df305e0dc85ce33e

  • Size

    39KB

  • Sample

    240702-3jkftsvhlb

  • MD5

    9f0c7902588bdf16a22a4b7273963f12

  • SHA1

    2ff0ad5bdf1f92f1c10dc921eabe53425f35af8c

  • SHA256

    560eb48d1b2104f4dc3b1607bf42b35e35dfe81272675040df305e0dc85ce33e

  • SHA512

    aae400a6b48c7f638013e59591f8fab35f6ae3db68f00677e385ddc4905d440d8fb5fe12970630ce30ba41020770b7bd4bd96780fe37a3de27d42e3197eccce1

  • SSDEEP

    768:sAbuWFlaK9QKc0yjiGoZRscl59fKy/fSaHb6lUy9jqf3Qqp:gWpQViWazj/66b6lUyM1

Score
10/10
phobosdefense_evasionevasionexecutionimpactpersistenceprivilege_escalationransomwarespywarestealer

Malware Config

Targets

    • Target

      2a8353551d099c78ac100b44718a691142f8cc7879b47e842ee8491426e15c08.exe

    • Size

      55KB

    • MD5

      ec656f2e9d53e5c30ae03301cc4348ea

    • SHA1

      abe66e0123a837890ff0f64039e5cc9b91549866

    • SHA256

      2a8353551d099c78ac100b44718a691142f8cc7879b47e842ee8491426e15c08

    • SHA512

      dc3a0e6d74954f2662cf7196e4b63cffbba4e6d41801767ef91c91eab853af3e3d1f6a529b0415bffc0269adb4030e57870865838237ac6cc54fb866379df554

    • 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 (313) 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 Matrix ATT&CK v13

Initial Access

Execution

Windows Management Instrumentation

1
T1047

Command and Scripting Interpreter

1
T1059

Persistence

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Privilege Escalation

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Defense Evasion

Indicator Removal

3
T1070

File Deletion

3
T1070.004

Impair Defenses

1
T1562

Disable or Modify System Firewall

1
T1562.004

Modify Registry

2
T1112

Direct Volume Access

1
T1006

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Inhibit System Recovery

4
T1490

Resource Development

Reconnaissance

Tasks