Overview

overview

10

Static

static

3

f5d99d4548...4f.exe

windows7-x64

10

f5d99d4548...4f.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    f5d99d4548470b4699b215453e9be29e48aa20616d45f704c335bd3bbe3e0a4f

  • Size

    266KB

  • Sample

    231013-edf98ada7s

  • MD5

    bca4f45fd63e9b7a8fb82ca92de246a2

  • SHA1

    73819e4af3dc2200ae5eac87df6bda9c2d502134

  • SHA256

    f5d99d4548470b4699b215453e9be29e48aa20616d45f704c335bd3bbe3e0a4f

  • SHA512

    6ad12488a43b28e97bb43cab7250ebd5b2f5a6437850a6c023f7a15ae5538905132f25a929c2efd240f113af2d038554e562ca5eb92835063ffd83b3f5b1c704

  • SSDEEP

    6144:I0zUjNSOjOTbdiEB241vgA0E1JtHMEtxPvGFXpbc2:I0YjNSOj+8219Np0C2

Score
10/10
phobosevasionpersistenceransomwarespywarestealer

Malware Config

Targets

    • Target

      f5d99d4548470b4699b215453e9be29e48aa20616d45f704c335bd3bbe3e0a4f

    • Size

      266KB

    • MD5

      bca4f45fd63e9b7a8fb82ca92de246a2

    • SHA1

      73819e4af3dc2200ae5eac87df6bda9c2d502134

    • SHA256

      f5d99d4548470b4699b215453e9be29e48aa20616d45f704c335bd3bbe3e0a4f

    • SHA512

      6ad12488a43b28e97bb43cab7250ebd5b2f5a6437850a6c023f7a15ae5538905132f25a929c2efd240f113af2d038554e562ca5eb92835063ffd83b3f5b1c704

    • SSDEEP

      6144:I0zUjNSOjOTbdiEB241vgA0E1JtHMEtxPvGFXpbc2:I0YjNSOj+8219Np0C2

    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 (66) 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)

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

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

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