Overview

overview

10

Static

static

3

ragnarok.exe

windows7-x64

10

ragnarok.exe

windows10-2004-x64

10

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General

  • Target

    ragnarok.exe

  • Size

    56KB

  • Sample

    231004-gd82cahd5t

  • MD5

    9eafe0c48ea68ccb1da722b5bc36fa8c

  • SHA1

    d598a96f482c4e5412baf5723b5a53f5930f0126

  • SHA256

    7124f6f197e503f77b3bbb136391b12d79a0e248e697506184aaf19b2df8eb7e

  • SHA512

    73f8835c487fb0007775a5696b41369721da150b6e8aa1b442d5b9bab6c46255c4d0ef9c5e1ea1c0547586866d026a9006a2d5c39e8a42afe634cb9c67512a75

  • SSDEEP

    768:NvrNNeRBl5JFTXqwXrkgrn/9/HiDKGwRj4RcTdyH4pYT3nPKVU1E3WUrXzM+W5I+:vNeRBl5PT/rx1mzwRMSTdLpJ3o2zEt

Score
10/10
phobosevasionpersistenceransomwarespywarestealer

Malware Config

Targets

    • Target

      ragnarok.exe

    • Size

      56KB

    • MD5

      9eafe0c48ea68ccb1da722b5bc36fa8c

    • SHA1

      d598a96f482c4e5412baf5723b5a53f5930f0126

    • SHA256

      7124f6f197e503f77b3bbb136391b12d79a0e248e697506184aaf19b2df8eb7e

    • SHA512

      73f8835c487fb0007775a5696b41369721da150b6e8aa1b442d5b9bab6c46255c4d0ef9c5e1ea1c0547586866d026a9006a2d5c39e8a42afe634cb9c67512a75

    • SSDEEP

      768:NvrNNeRBl5JFTXqwXrkgrn/9/HiDKGwRj4RcTdyH4pYT3nPKVU1E3WUrXzM+W5I+:vNeRBl5PT/rx1mzwRMSTdLpJ3o2zEt

    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 (312) files with added filename extension

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

      ransomware

    • Renames multiple (339) 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)

    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