General

  • Target

    2024-09-05_aef2bfae94193a904297ac137d9988a5_avoslocker_bitrat_floxif_hijackloader

  • Size

    2.7MB

  • Sample

    240905-pryfrs1hja

  • MD5

    aef2bfae94193a904297ac137d9988a5

  • SHA1

    668594b00a333fca4002f716311cd5aa4201d99f

  • SHA256

    379a076f2f1971290d9585f2847c14db67cfcee82b8a318b9b7516ecc5f295f4

  • SHA512

    f740415c48cf003aef77852c3aeed485bbbfb15a37f65d0037529eab03a15c727333af4f7a4e4b8ea06781cbcb5fb4a62c6531a00772ceba9bcec4a65f28dfbd

  • SSDEEP

    49152:VTD7Jvx66J9507uEiVw6kT+cT+0FVA7ri/7xznSqur7bT9iAvIyD94OeDD7lrZ+E:VrJ/9505S0pVLtFAZwuLcmhWibDA

Malware Config

Targets

    • Target

      2024-09-05_aef2bfae94193a904297ac137d9988a5_avoslocker_bitrat_floxif_hijackloader

    • Size

      2.7MB

    • MD5

      aef2bfae94193a904297ac137d9988a5

    • SHA1

      668594b00a333fca4002f716311cd5aa4201d99f

    • SHA256

      379a076f2f1971290d9585f2847c14db67cfcee82b8a318b9b7516ecc5f295f4

    • SHA512

      f740415c48cf003aef77852c3aeed485bbbfb15a37f65d0037529eab03a15c727333af4f7a4e4b8ea06781cbcb5fb4a62c6531a00772ceba9bcec4a65f28dfbd

    • SSDEEP

      49152:VTD7Jvx66J9507uEiVw6kT+cT+0FVA7ri/7xznSqur7bT9iAvIyD94OeDD7lrZ+E:VrJ/9505S0pVLtFAZwuLcmhWibDA

    • Floxif, Floodfix

      Floxif aka FloodFix is a file-changing trojan and backdoor written in C++.

    • Detects Floxif payload

    • Event Triggered Execution: AppInit DLLs

      Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.

    • ACProtect 1.3x - 1.4x DLL software

      Detects file using ACProtect software.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Checks whether UAC is enabled

    • Enumerates connected drives

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

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Event Triggered Execution

1
T1546

AppInit DLLs

1
T1546.010

Privilege Escalation

Event Triggered Execution

1
T1546

AppInit DLLs

1
T1546.010

Discovery

Query Registry

2
T1012

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Tasks