General

  • Target

    af0e24781ed3683f04dd86a616e31490f36c2da4cbb4fddc76efbd0fc4f15d55.exe

  • Size

    3.1MB

  • Sample

    241102-a5r4ksxfnj

  • MD5

    3303698d5190201a3f6dd7f1118251e0

  • SHA1

    b7ef2c81d6ae8023ff811278ec3e5bfba8fd905d

  • SHA256

    af0e24781ed3683f04dd86a616e31490f36c2da4cbb4fddc76efbd0fc4f15d55

  • SHA512

    7ee79e8be71b4f3f7e6c1678e5100484e774d445777adc8f744d782258fad7444a5cd775a8290fdaadd7ab95b3c5fdb2b10e644dc64daa340c770d34151293f4

  • SSDEEP

    24576:0wYAZ9hsTcbVPIw4OEezpOPoZzUt4MKom1W6USf5ZztnE/O/XZ/zhPw:zztbN5pZAJ0fJl8

Malware Config

Targets

    • Target

      af0e24781ed3683f04dd86a616e31490f36c2da4cbb4fddc76efbd0fc4f15d55.exe

    • Size

      3.1MB

    • MD5

      3303698d5190201a3f6dd7f1118251e0

    • SHA1

      b7ef2c81d6ae8023ff811278ec3e5bfba8fd905d

    • SHA256

      af0e24781ed3683f04dd86a616e31490f36c2da4cbb4fddc76efbd0fc4f15d55

    • SHA512

      7ee79e8be71b4f3f7e6c1678e5100484e774d445777adc8f744d782258fad7444a5cd775a8290fdaadd7ab95b3c5fdb2b10e644dc64daa340c770d34151293f4

    • SSDEEP

      24576:0wYAZ9hsTcbVPIw4OEezpOPoZzUt4MKom1W6USf5ZztnE/O/XZ/zhPw:zztbN5pZAJ0fJl8

    • Chaos

      Ransomware family first seen in June 2021.

    • Chaos Ransomware

    • Chaos family

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Modifies boot configuration data using bcdedit

    • Deletes backup catalog

      Uses wbadmin.exe to inhibit system recovery.

    • 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.

    • Drops desktop.ini file(s)

    • Sets desktop wallpaper using registry

MITRE ATT&CK Enterprise v15

Tasks