Overview

overview

10

Static

static

10

Chaos Rans...er.exe

windows10-2004-x64

10

Chaos Rans...er.exe

windows11-21h2-x64

10

Resubmissions

26-03-2024 03:42

240326-d9ssfsfe3x 10

24-03-2024 08:51

240324-ksdersdh8x 10

23-03-2024 11:47

240323-nxzeksff97 10

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General

  • Target

    Chaos Ransomware Builder.exe

  • Size

    550KB

  • Sample

    240324-ksdersdh8x

  • MD5

    8b855e56e41a6e10d28522a20c1e0341

  • SHA1

    17ea75272cfe3749c6727388fd444d2c970f9d01

  • SHA256

    f2665f89ba53abd3deb81988c0d5194992214053e77fc89b98b64a31a7504d77

  • SHA512

    eefab442b9c1be379e00c6a7de9d6d7d327ad8fd52d62a5744e104f6caa44f7147a8e74f340870f9c017980a3d8a5a86a05f76434539c01270c442a66b2af908

  • SSDEEP

    3072:9UJAYdi2YcRVm16Pn6tpzqJG/sX9i2YcRPm16Pn6ckCjSH5EyR9aKZt18rTu+i2S:9aiWm162qJEsNiym16ryAiym168

Score
10/10
chaosevasionpersistenceransomwarespywarestealer

Malware Config

Targets

    • Target

      Chaos Ransomware Builder.exe

    • Size

      550KB

    • MD5

      8b855e56e41a6e10d28522a20c1e0341

    • SHA1

      17ea75272cfe3749c6727388fd444d2c970f9d01

    • SHA256

      f2665f89ba53abd3deb81988c0d5194992214053e77fc89b98b64a31a7504d77

    • SHA512

      eefab442b9c1be379e00c6a7de9d6d7d327ad8fd52d62a5744e104f6caa44f7147a8e74f340870f9c017980a3d8a5a86a05f76434539c01270c442a66b2af908

    • SSDEEP

      3072:9UJAYdi2YcRVm16Pn6tpzqJG/sX9i2YcRPm16Pn6ckCjSH5EyR9aKZt18rTu+i2S:9aiWm162qJEsNiym16ryAiym168

    Score
    10/10
    chaosransomwareevasionpersistencespywarestealer

    • Chaos

      Ransomware family first seen in June 2021.

      ransomwarechaos

    • Chaos Ransomware

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomware

    • Modifies boot configuration data using bcdedit

      ransomwareevasion

    • Deletes backup catalog

      Uses wbadmin.exe to inhibit system recovery.

      ransomware

    • Modifies Installed Components in the registry

      persistence

    • Deletes itself

    • 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)

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Sets desktop wallpaper using registry

      ransomware
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks