Overview

overview

10

Static

static

10

8255e2d492...fe.exe

windows7-x64

10

8255e2d492...fe.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    8255e2d4929a77203721d93e3945e5cbf1fcaf3c2fe052b7cd18a5e0846e0dfe

  • Size

    21KB

  • Sample

    241002-x8lsaswgje

  • MD5

    14d1c2327c5bdde7656b7535f7936d92

  • SHA1

    20c05343aff8bc0661aa928c26bee1146ee7f454

  • SHA256

    8255e2d4929a77203721d93e3945e5cbf1fcaf3c2fe052b7cd18a5e0846e0dfe

  • SHA512

    195a525d09c977fa05acf5ac6eb7fc5690e83879555137c20838facf74bf7248ef15af2a2298e7bb02dc98e6bc61b37a6f11d8f7a0d4d7182447ac400d8618d9

  • SSDEEP

    384:U3Mg/bqo2b52NspBRdwdQJer91Cyu6eF:qqo2AspOdYer9x3eF

Score
10/10
chaosdefense_evasionevasionexecutionimpactransomwarespywarestealer

Malware Config

Targets

    • Target

      8255e2d4929a77203721d93e3945e5cbf1fcaf3c2fe052b7cd18a5e0846e0dfe

    • Size

      21KB

    • MD5

      14d1c2327c5bdde7656b7535f7936d92

    • SHA1

      20c05343aff8bc0661aa928c26bee1146ee7f454

    • SHA256

      8255e2d4929a77203721d93e3945e5cbf1fcaf3c2fe052b7cd18a5e0846e0dfe

    • SHA512

      195a525d09c977fa05acf5ac6eb7fc5690e83879555137c20838facf74bf7248ef15af2a2298e7bb02dc98e6bc61b37a6f11d8f7a0d4d7182447ac400d8618d9

    • SSDEEP

      384:U3Mg/bqo2b52NspBRdwdQJer91Cyu6eF:qqo2AspOdYer9x3eF

    Score
    10/10
    chaosdefense_evasionevasionexecutionimpactransomwarespywarestealer

    • Chaos

      Ransomware family first seen in June 2021.

      ransomwarechaos

    • Chaos Ransomware

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Modifies boot configuration data using bcdedit

      ransomwareevasion

    • Renames multiple (201) 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

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Drops desktop.ini file(s)

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks