Overview

overview

10

Static

static

7

0dd34e1326...da.exe

windows10-2004-x64

10

0dd34e1326...da.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    92s
  • max time network
    93s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240419-en
  • resource tags

    arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    07-05-2024 06:34

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    0dd34e1326f18ab113be5ec91003577845f62ce25bbed8f92bff0b4077fe45da.exe

  • Size

    2.5MB

  • MD5

    e63e41e15e86489a98dbeb2e6cb44e8a

  • SHA1

    5815d349a375f5cdf090ababcff86b3946ed6c07

  • SHA256

    0dd34e1326f18ab113be5ec91003577845f62ce25bbed8f92bff0b4077fe45da

  • SHA512

    749d9580ac631916fbc1db207f0f48ed2ff9979f0cd8e352633cd86edfe7bd5bbb6da90b014e0b8ad639f8b9e567498f07353ef907ce2bd6dfa5536d3079991e

  • SSDEEP

    49152:p+9pcEvA81ugLUKnGkFfHTvdlhylPdVkdL6rMD0uVVePR2EW:ktLUm3FfzvojKdLCAoPR2V

Score
10/10
medusalockerdefense_evasionevasionexecutionimpactpersistenceransomwarespywarestealerthemidatrojan

Malware Config

Signatures

  • MedusaLocker

    Ransomware with several variants first seen in September 2019.

    ransomwaremedusalocker
  • MedusaLocker payload 8 IoCs
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
    evasion
  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
    ransomwareevasion
  • Renames multiple (648) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    ransomware
  • Deletes System State backups 3 TTPs 2 IoCs

    Uses wbadmin.exe to inhibit system recovery.

    ransomware
  • Drops file in Drivers directory 12 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Themida packer 10 IoCs

    Detects Themida, an advanced Windows software protection system.

    themida
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Drops desktop.ini file(s) 1 IoCs
  • Enumerates connected drives 3 TTPs 39 IoCs

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

  • Drops file in System32 directory 64 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Drops file in Program Files directory 52 IoCs
  • Drops file in Windows directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Interacts with shadow copies 2 TTPs 13 IoCs

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

    ransomware
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 24 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs
  • System policy modification 1 TTPs 1 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\0dd34e1326f18ab113be5ec91003577845f62ce25bbed8f92bff0b4077fe45da.exe
    "C:\Users\Admin\AppData\Local\Temp\0dd34e1326f18ab113be5ec91003577845f62ce25bbed8f92bff0b4077fe45da.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Drops file in Drivers directory
    • Checks BIOS information in registry
    • Adds Run key to start application
    • Checks whether UAC is enabled
    • Drops desktop.ini file(s)
    • Enumerates connected drives
    • Drops file in System32 directory
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:3824
    • C:\Windows\SYSTEM32\vssadmin.exe
      vssadmin.exe Resize ShadowStorage /for=c: /on=c: /maxsize=401MB
      2⤵
      • Interacts with shadow copies
      PID:3744
    • C:\Windows\SYSTEM32\vssadmin.exe
      vssadmin.exe Resize ShadowStorage /for=c: /on=c: /maxsize=unbounded
      2⤵
      • Interacts with shadow copies
      PID:4452
    • C:\Windows\SYSTEM32\vssadmin.exe
      vssadmin.exe Resize ShadowStorage /for=d: /on=d: /maxsize=401MB
      2⤵
      • Enumerates connected drives
      • Interacts with shadow copies
      PID:2872
    • C:\Windows\SYSTEM32\vssadmin.exe
      vssadmin.exe Resize ShadowStorage /for=d: /on=d: /maxsize=unbounded
      2⤵
      • Enumerates connected drives
      • Interacts with shadow copies
      PID:1464
    • C:\Windows\SYSTEM32\vssadmin.exe
      vssadmin.exe Resize ShadowStorage /for=e: /on=e: /maxsize=401MB
      2⤵
      • Enumerates connected drives
      • Interacts with shadow copies
      PID:3332
    • C:\Windows\SYSTEM32\vssadmin.exe
      vssadmin.exe Resize ShadowStorage /for=e: /on=e: /maxsize=unbounded
      2⤵
      • Enumerates connected drives
      • Interacts with shadow copies
      PID:3124
    • C:\Windows\SYSTEM32\vssadmin.exe
      vssadmin.exe Resize ShadowStorage /for=f: /on=f: /maxsize=401MB
      2⤵
      • Enumerates connected drives
      • Interacts with shadow copies
      PID:1296
    • C:\Windows\SYSTEM32\vssadmin.exe
      vssadmin.exe Resize ShadowStorage /for=f: /on=f: /maxsize=unbounded
      2⤵
      • Enumerates connected drives
      • Interacts with shadow copies
      PID:3112
    • C:\Windows\SYSTEM32\vssadmin.exe
      vssadmin.exe Resize ShadowStorage /for=g: /on=g: /maxsize=401MB
      2⤵
      • Enumerates connected drives
      • Interacts with shadow copies
      PID:244
    • C:\Windows\SYSTEM32\vssadmin.exe
      vssadmin.exe Resize ShadowStorage /for=g: /on=g: /maxsize=unbounded
      2⤵
      • Enumerates connected drives
      • Interacts with shadow copies
      PID:1904
    • C:\Windows\SYSTEM32\vssadmin.exe
      vssadmin.exe Resize ShadowStorage /for=h: /on=h: /maxsize=401MB
      2⤵
      • Enumerates connected drives
      • Interacts with shadow copies
      PID:2880
    • C:\Windows\SYSTEM32\vssadmin.exe
      vssadmin.exe Resize ShadowStorage /for=h: /on=h: /maxsize=unbounded
      2⤵
      • Enumerates connected drives
      • Interacts with shadow copies
      PID:4064
    • C:\Windows\SYSTEM32\vssadmin.exe
      vssadmin.exe Delete Shadows /All /Quiet
      2⤵
      • Interacts with shadow copies
      PID:2664
    • C:\Windows\SYSTEM32\bcdedit.exe
      bcdedit.exe /set {default} recoveryenabled No
      2⤵
      • Modifies boot configuration data using bcdedit
      PID:2360
    • C:\Windows\SYSTEM32\bcdedit.exe
      bcdedit.exe /set {default} bootstatuspolicy ignoreallfailures
      2⤵
      • Modifies boot configuration data using bcdedit
      PID:1728
    • C:\Windows\SYSTEM32\wbadmin.exe
      wbadmin DELETE SYSTEMSTATEBACKUP
      2⤵
      • Deletes System State backups
      • Drops file in Windows directory
      PID:2416
    • C:\Windows\SYSTEM32\wbadmin.exe
      wbadmin DELETE SYSTEMSTATEBACKUP -deleteOldest
      2⤵
      • Deletes System State backups
      • Drops file in Windows directory
      PID:5104
    • C:\Windows\System32\Wbem\wmic.exe
      wmic.exe SHADOWCOPY /nointeractive
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1600
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\0DD34E~1.EXE >> NUL
      2⤵
        PID:1320
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1012

    Network

    MITRE ATT&CK Enterprise v15

    Reconnaissance

    Resource Development

    Initial Access

    Execution

    Command and Scripting Interpreter

    1
    T1059

    Windows Management Instrumentation

    1
    T1047

    Persistence

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Privilege Escalation

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Defense Evasion

    Indicator Removal

    3
    T1070

    File Deletion

    3
    T1070.004

    Modify Registry

    2
    T1112

    Virtualization/Sandbox Evasion

    1
    T1497

    Credential Access

    Unsecured Credentials

    1
    T1552

    Credentials In Files

    1
    T1552.001

    Discovery

    Peripheral Device Discovery

    1
    T1120

    Query Registry

    3
    T1012

    System Information Discovery

    4
    T1082

    Virtualization/Sandbox Evasion

    1
    T1497

    Lateral Movement

    Collection

    Data from Local System

    1
    T1005

    Command and Control

    Exfiltration

    Impact

    Inhibit System Recovery

    4
    T1490

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/3824-1-0x00007FFAEE0E7000-0x00007FFAEE0E9000-memory.dmp

      Filesize

      8KB

      Download

    • memory/3824-0-0x00007FF770EE0000-0x00007FF771721000-memory.dmp

      Filesize

      8.3MB

      Download

    • memory/3824-2-0x00007FF770EE0000-0x00007FF771721000-memory.dmp

      Filesize

      8.3MB

      Download

    • memory/3824-4-0x00007FF770EE0000-0x00007FF771721000-memory.dmp

      Filesize

      8.3MB

      Download

    • memory/3824-3-0x00007FF770EE0000-0x00007FF771721000-memory.dmp

      Filesize

      8.3MB

      Download

    • memory/3824-7-0x00007FF770EE0000-0x00007FF771721000-memory.dmp

      Filesize

      8.3MB

      Download

    • memory/3824-8-0x00007FF770EE0000-0x00007FF771721000-memory.dmp

      Filesize

      8.3MB

      Download

    • memory/3824-6-0x00007FF770EE0000-0x00007FF771721000-memory.dmp

      Filesize

      8.3MB

      Download

    • memory/3824-5-0x00007FF770EE0000-0x00007FF771721000-memory.dmp

      Filesize

      8.3MB

      Download

    • memory/3824-595-0x00007FF770EE0000-0x00007FF771721000-memory.dmp

      Filesize

      8.3MB

      Download

    • memory/3824-1612-0x00007FF770EE0000-0x00007FF771721000-memory.dmp

      Filesize

      8.3MB

      Download