Overview

overview

10

Static

static

3

1bf36695b0...15.exe

windows7-x64

10

1bf36695b0...15.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    1bf36695b0709be363fabd107d3fe8f4b202b1e58b3665408107875839822715.exe

  • Size

    320KB

  • Sample

    241122-kyfr3stncq

  • MD5

    f994621fb8d39133c91165a336bfa517

  • SHA1

    02f1f61bd246cbb0a7cd7e1aed69e48628d15d7a

  • SHA256

    1bf36695b0709be363fabd107d3fe8f4b202b1e58b3665408107875839822715

  • SHA512

    e3bd52ae4070e6bab51802247788e91ad5edf66272fc2668bfff14c867636931c53eb19653bb081459e0f9f45bf4dcc9df03933863ff81d0a61c4d688e908b6b

  • SSDEEP

    6144:0TwZo1IV3puaibGKFHi0mofhaH05kipz016580bHFbl86JQPDHDdx/QtqRr:qXgvmzFHi0mo5aH0qMzd5807FRPJQPDH

Score
10/10
defense_evasiondiscoveryevasionpersistenceprivilege_escalationtrojan

Malware Config

Targets

    • Target

      1bf36695b0709be363fabd107d3fe8f4b202b1e58b3665408107875839822715.exe

    • Size

      320KB

    • MD5

      f994621fb8d39133c91165a336bfa517

    • SHA1

      02f1f61bd246cbb0a7cd7e1aed69e48628d15d7a

    • SHA256

      1bf36695b0709be363fabd107d3fe8f4b202b1e58b3665408107875839822715

    • SHA512

      e3bd52ae4070e6bab51802247788e91ad5edf66272fc2668bfff14c867636931c53eb19653bb081459e0f9f45bf4dcc9df03933863ff81d0a61c4d688e908b6b

    • SSDEEP

      6144:0TwZo1IV3puaibGKFHi0mofhaH05kipz016580bHFbl86JQPDHDdx/QtqRr:qXgvmzFHi0mo5aH0qMzd5807FRPJQPDH

    Score
    10/10
    defense_evasiondiscoveryevasionpersistenceprivilege_escalationtrojan

    • Modifies WinLogon for persistence

      persistence

    • UAC bypass

      evasiontrojan

    • Adds policy Run key to start application

      persistence

    • Disables RegEdit via registry modification

      evasion

    • Checks computer location settings

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

    • Executes dropped EXE

    • Impair Defenses: Safe Mode Boot

      defense_evasion

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      evasiontrojan

    • Hijack Execution Flow: Executable Installer File Permissions Weakness

      Possible Turn off User Account Control's privilege elevation for standard users.

      defense_evasionpersistenceprivilege_escalation

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

3
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Winlogon Helper DLL

1
T1547.004

Hijack Execution Flow

1
T1574

Executable Installer File Permissions Weakness

1
T1574.005

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Boot or Logon Autostart Execution

3
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Winlogon Helper DLL

1
T1547.004

Hijack Execution Flow

1
T1574

Executable Installer File Permissions Weakness

1
T1574.005

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Hijack Execution Flow

1
T1574

Executable Installer File Permissions Weakness

1
T1574.005

Impair Defenses

2
T1562

Disable or Modify Tools

1
T1562.001

Safe Mode Boot

1
T1562.009

Modify Registry

5
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

3
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks