Overview

overview

10

Static

static

3

fd61dfd3ef...8N.exe

windows7-x64

10

fd61dfd3ef...8N.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    fd61dfd3efc792e8eee11592226d3e38f43ed0cbe8607a25f38253f2e9f0b918N.exe

  • Size

    271KB

  • Sample

    241216-xr9g2ayncj

  • MD5

    104e8d1eeac87bdae748957c3a1c2170

  • SHA1

    cf12406807753a8caff0dda2b855b216544a94d2

  • SHA256

    fd61dfd3efc792e8eee11592226d3e38f43ed0cbe8607a25f38253f2e9f0b918

  • SHA512

    0768a926ce27add3bc75a356059e71504cc1c824eb86c7c93922c0765b0e7f6d9045c63b47dc61f27a23f79990b4b8e95bbfce7efcb00ee1e2043a11eb2d1375

  • SSDEEP

    6144:XILqdufR6Da5zmR7BV+UdvrEFp7hKlCUx/:4B6Da5zGBjvrEH7e7/

Score
10/10
floxifbackdoordiscoveryevasionpersistenceprivilege_escalationtrojanupx

Malware Config

Targets

    • Target

      fd61dfd3efc792e8eee11592226d3e38f43ed0cbe8607a25f38253f2e9f0b918N.exe

    • Size

      271KB

    • MD5

      104e8d1eeac87bdae748957c3a1c2170

    • SHA1

      cf12406807753a8caff0dda2b855b216544a94d2

    • SHA256

      fd61dfd3efc792e8eee11592226d3e38f43ed0cbe8607a25f38253f2e9f0b918

    • SHA512

      0768a926ce27add3bc75a356059e71504cc1c824eb86c7c93922c0765b0e7f6d9045c63b47dc61f27a23f79990b4b8e95bbfce7efcb00ee1e2043a11eb2d1375

    • SSDEEP

      6144:XILqdufR6Da5zmR7BV+UdvrEFp7hKlCUx/:4B6Da5zGBjvrEH7e7/

    Score
    10/10
    floxifbackdoordiscoveryevasionpersistencetrojanupxprivilege_escalation

    • Floxif family

      floxif

    • Floxif, Floodfix

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

      backdoortrojanfloxif

    • Modifies visiblity of hidden/system files in Explorer

      evasion

    • Detects Floxif payload

      backdoor

    • Event Triggered Execution: AppInit DLLs

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

      persistenceprivilege_escalation

    • ACProtect 1.3x - 1.4x DLL software

      Detects file using ACProtect software.

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Enumerates connected drives

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

    • Drops file in System32 directory

    • UPX packed file

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

      upx
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Event Triggered Execution

1
T1546

AppInit DLLs

1
T1546.010

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Event Triggered Execution

1
T1546

AppInit DLLs

1
T1546.010

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Modify Registry

2
T1112

Credential Access

Discovery

Peripheral Device Discovery

1
T1120

Query Registry

1
T1012

System Information Discovery

1
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks