Overview

overview

10

Static

static

10

67219f4321...8e.exe

windows7-x64

9

67219f4321...8e.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    29-03-2024 03:35

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General

  • Target

    67219f43217d5aec3332a3f999e4b2a18c989751b79881a71438aa63fb21d28e.exe

  • Size

    368KB

  • MD5

    4fc21019958f322932f513de035099a1

  • SHA1

    9e74b111726016a375ff1f5c5d496196055957ca

  • SHA256

    67219f43217d5aec3332a3f999e4b2a18c989751b79881a71438aa63fb21d28e

  • SHA512

    cc0a858d16633bf79446fae79d251c85d547825fe6f563bbe4fe2bd57f1b6a6749ce1b29112bba8f56a483f2c133e6fd74473eade9be98980307b6baf825aba1

  • SSDEEP

    3072:804bp8PrsMN3lVX4D2Yy2JAAG1kaZMP6VcJGbpQLfKYWVYGjhTPt+rjoM:8HbirsM3l+2wmk9P2nbpuff4Wjb

Score
9/10
persistenceransomwarespywarestealer

Malware Config

Signatures

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Detects ransomware indicator 1 IoCs
  • Renames multiple (732) files with added filename extension

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

    ransomware
  • Drops file in Drivers directory 1 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Drops file in System32 directory 64 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
    ransomware
  • Drops file in Program Files directory 64 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 1 IoCs

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

    ransomware
  • Modifies Control Panel 2 IoCs
    evasion
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs
  • 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\67219f43217d5aec3332a3f999e4b2a18c989751b79881a71438aa63fb21d28e.exe
    "C:\Users\Admin\AppData\Local\Temp\67219f43217d5aec3332a3f999e4b2a18c989751b79881a71438aa63fb21d28e.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1660
    • C:\Users\Admin\AppData\Roaming\elowlcv.exe
      C:\Users\Admin\AppData\Roaming\elowlcv.exe
      2⤵
      • Drops file in Drivers directory
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • Drops file in System32 directory
      • Sets desktop wallpaper using registry
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Modifies Control Panel
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1940
      • C:\Windows\SysWOW64\vssadmin.exe
        vssadmin delete shadows /all
        3⤵
        • Interacts with shadow copies
        PID:3020
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\67219F~1.EXE >> NUL
      2⤵
      • Deletes itself
      PID:3004
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2580

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Roaming\elowlcv.exe
    Filesize

    368KB

    MD5

    4fc21019958f322932f513de035099a1

    SHA1

    9e74b111726016a375ff1f5c5d496196055957ca

    SHA256

    67219f43217d5aec3332a3f999e4b2a18c989751b79881a71438aa63fb21d28e

    SHA512

    cc0a858d16633bf79446fae79d251c85d547825fe6f563bbe4fe2bd57f1b6a6749ce1b29112bba8f56a483f2c133e6fd74473eade9be98980307b6baf825aba1

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