Overview

overview

10

Static

static

7

Ransomware...er.exe

windows7-x64

8

Ransomware...er.exe

windows10-2004-x64

8

Ransomware/7ev3n.exe

windows7-x64

Ransomware/7ev3n.exe

windows10-2004-x64

Ransomware...le.exe

windows7-x64

Ransomware...le.exe

windows10-2004-x64

Ransomware...it.exe

windows7-x64

10

Ransomware...it.exe

windows10-2004-x64

10

Ransomware/Birele.exe

windows10-2004-x64

10

Ransomware...r5.exe

windows7-x64

10

Ransomware...r5.exe

windows10-2004-x64

10

Ransomware...us.exe

windows7-x64

10

Ransomware...us.exe

windows10-2004-x64

10

Ransomware...er.exe

windows7-x64

10

Ransomware...er.exe

windows10-2004-x64

10

Ransomware...ll.exe

windows7-x64

9

Ransomware...ll.exe

windows10-2004-x64

7

Ransomware...ck.exe

windows7-x64

7

Ransomware...ck.exe

windows10-2004-x64

7

Ransomware/Dharma.exe

windows7-x64

9

Ransomware/Dharma.exe

windows10-2004-x64

9

Ransomware/Fantom.exe

windows7-x64

10

Ransomware/Fantom.exe

windows10-2004-x64

10

Ransomware...ab.exe

windows7-x64

10

Ransomware...ab.exe

windows10-2004-x64

10

Ransomware...ye.exe

windows7-x64

10

Ransomware...ye.exe

windows10-2004-x64

10

Ransomware...Eye.js

windows7-x64

10

Ransomware...Eye.js

windows10-2004-x64

10

Ransomware...pt.exe

windows7-x64

10

Ransomware...pt.exe

windows10-2004-x64

10

Ransomware...en.exe

windows7-x64

8

Resubmissions

03-03-2024 01:34

240303-by6ttsbe94 10

03-03-2024 01:31

240303-bxkj7sbe62 7

Analysis

  • max time kernel
    25s
  • max time network
    29s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-03-2024 01:34

Sharing

Copy URL
Twitter E-mail

Errors

Reason
Machine shutdown
Report Analysis Logs

General

  • Target

    Ransomware/Annabelle.exe

  • Size

    15.9MB

  • MD5

    0f743287c9911b4b1c726c7c7edcaf7d

  • SHA1

    9760579e73095455fcbaddfe1e7e98a2bb28bfe0

  • SHA256

    716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac

  • SHA512

    2a6dd6288303700ef9cb06ae1efeb1e121c89c97708e5ecd15ed9b2a35d0ecff03d8da58b30daeadad89bd38dc4649521ada149fb457408e5a2bdf1512f88677

  • SSDEEP

    393216:UMwm0qBknxdEX+LbMUgoSZmWSmh4aaRN22ChHCMNku1y:UMcKX+Lbjgd7W1RNVC9ku1

Score
10/10
evasionpersistenceransomwaretrojan

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • Modifies Windows Defender Real-time Protection settings 3 TTPs 2 IoCs
    evasiontrojan
  • UAC bypass 3 TTPs 1 IoCs
    evasiontrojan
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Disables RegEdit via registry modification 2 IoCs
    evasion
  • Disables Task Manager via registry modification
    evasion
  • Disables use of System Restore points 1 TTPs
    evasion
  • Modifies Windows Firewall 2 TTPs 1 IoCs
    evasion
  • Sets file execution options in registry 2 TTPs 64 IoCs
    persistence
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 3 IoCs
    persistence
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Interacts with shadow copies 2 TTPs 3 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

    ransomware
  • Modifies data under HKEY_USERS 15 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • System policy modification 1 TTPs 9 IoCs
    evasion
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\Ransomware\Annabelle.exe
    "C:\Users\Admin\AppData\Local\Temp\Ransomware\Annabelle.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Modifies Windows Defender Real-time Protection settings
    • UAC bypass
    • Disables RegEdit via registry modification
    • Sets file execution options in registry
    • Checks computer location settings
    • Adds Run key to start application
    • Checks whether UAC is enabled
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:2908
    • C:\Windows\SYSTEM32\vssadmin.exe
      vssadmin delete shadows /all /quiet
      2⤵
      • Interacts with shadow copies
      PID:3308
    • C:\Windows\SYSTEM32\vssadmin.exe
      vssadmin delete shadows /all /quiet
      2⤵
      • Interacts with shadow copies
      PID:4560
    • C:\Windows\SYSTEM32\vssadmin.exe
      vssadmin delete shadows /all /quiet
      2⤵
      • Interacts with shadow copies
      PID:4252
    • C:\Windows\SYSTEM32\NetSh.exe
      NetSh Advfirewall set allprofiles state off
      2⤵
      • Modifies Windows Firewall
      PID:2976
    • C:\Windows\System32\shutdown.exe
      "C:\Windows\System32\shutdown.exe" -r -t 00 -f
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4536
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4132
  • C:\Windows\system32\LogonUI.exe
    "LogonUI.exe" /flags:0x4 /state0:0xa39be855 /state1:0x41c64e6d
    1⤵
    • Modifies data under HKEY_USERS
    • Suspicious use of SetWindowsHookEx
    PID:2640

Network

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

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

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

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Impair Defenses

3
T1562

Disable or Modify System Firewall

1
T1562.004

Disable or Modify Tools

2
T1562.001

Indicator Removal

2
T1070

File Deletion

2
T1070.004

Modify Registry

6
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

3
T1490

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2908-0-0x00007FFAB6DC0000-0x00007FFAB7881000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/2908-1-0x0000022B3C730000-0x0000022B3D724000-memory.dmp

    Filesize

    16.0MB

    Download

  • memory/2908-2-0x0000022B57C50000-0x0000022B591DE000-memory.dmp

    Filesize

    21.6MB

    Download

  • memory/2908-3-0x0000022B3F550000-0x0000022B3F560000-memory.dmp

    Filesize

    64KB

    Download

  • memory/2908-145-0x00007FFAB6DC0000-0x00007FFAB7881000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/2908-150-0x00007FFAB6DC0000-0x00007FFAB7881000-memory.dmp

    Filesize

    10.8MB

    Download