Overview

overview

10

Static

static

3

4a9f8c1148...7N.exe

windows7-x64

10

4a9f8c1148...7N.exe

windows10-2004-x64

10

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General

  • Target

    4a9f8c11487b8dc6a95cd72ce27a3f022c3fa5deefc981f1871b1bd9b2eea167N.exe

  • Size

    140KB

  • Sample

    250103-t6vqmstjb1

  • MD5

    12de2869d5074ab3984e54fc70f940b0

  • SHA1

    f5a6e64293a354a5cfd69f8a8ebd9818e1311a0e

  • SHA256

    4a9f8c11487b8dc6a95cd72ce27a3f022c3fa5deefc981f1871b1bd9b2eea167

  • SHA512

    da9b820f647b7a03b31473bc1b73da6ae1bfee496f83a36c3280bea16122814b40b12654079fdb98e31ff08b6d4e34b93a1651a48631d9297fbfbb665147c81e

  • SSDEEP

    3072:XxbfwkAbfZ2lQBV+UdE+rECWp7hKuNSGi:XFytBV+UdvrEFp7hK1

Score
10/10
floxifbackdoordiscoveryevasionpersistenceprivilege_escalationspywarestealertrojanupx

Malware Config

Targets

    • Target

      4a9f8c11487b8dc6a95cd72ce27a3f022c3fa5deefc981f1871b1bd9b2eea167N.exe

    • Size

      140KB

    • MD5

      12de2869d5074ab3984e54fc70f940b0

    • SHA1

      f5a6e64293a354a5cfd69f8a8ebd9818e1311a0e

    • SHA256

      4a9f8c11487b8dc6a95cd72ce27a3f022c3fa5deefc981f1871b1bd9b2eea167

    • SHA512

      da9b820f647b7a03b31473bc1b73da6ae1bfee496f83a36c3280bea16122814b40b12654079fdb98e31ff08b6d4e34b93a1651a48631d9297fbfbb665147c81e

    • SSDEEP

      3072:XxbfwkAbfZ2lQBV+UdE+rECWp7hKuNSGi:XFytBV+UdvrEFp7hK1

    Score
    10/10
    floxifbackdoordiscoveryevasionpersistenceprivilege_escalationspywarestealertrojanupx

    • Floxif family

      floxif

    • Floxif, Floodfix

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

      backdoortrojanfloxif

    • Modifies WinLogon for persistence

      persistence

    • Modifies visibility of file extensions in Explorer

      evasion

    • Modifies visiblity of hidden/system files in Explorer

      evasion

    • Detects Floxif payload

      backdoor

    • Disables RegEdit via registry modification

      evasion

    • 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

    • Event Triggered Execution: Image File Execution Options Injection

      persistence

    • 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.

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

      spywarestealer

    • 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

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Event Triggered Execution

2
T1546

AppInit DLLs

1
T1546.010

Image File Execution Options Injection

1
T1546.012

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Event Triggered Execution

2
T1546

AppInit DLLs

1
T1546.010

Image File Execution Options Injection

1
T1546.012

Defense Evasion

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Modify Registry

4
T1112

Credential Access

Credentials from Password Stores

1
T1555

Credentials from Web Browsers

1
T1555.003

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Peripheral Device Discovery

1
T1120

Query Registry

2
T1012

System Information Discovery

3
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks