Overview

overview

10

Static

static

3

CoronaVirus.exe

windows7-x64

10

CoronaVirus.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    153s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    06-04-2024 21:29

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General

  • Target

    CoronaVirus.exe

  • Size

    1.0MB

  • MD5

    055d1462f66a350d9886542d4d79bc2b

  • SHA1

    f1086d2f667d807dbb1aa362a7a809ea119f2565

  • SHA256

    dddf7894b2e6aafa1903384759d68455c3a4a8348a7e2da3bd272555eba9bec0

  • SHA512

    2c5e570226252bdb2104c90d5b75f11493af8ed1be8cb0fd14e3f324311a82138753064731b80ce8e8b120b3fe7009b21a50e9f4583d534080e28ab84b83fee1

  • SSDEEP

    24576:FRYz/ERA0eMuWfHvgPw/83JI8CorP9qY0:FE/yADMuYvgP93JIc2

Score
10/10
dharmapersistenceransomwarespywarestealer

Malware Config

Signatures

  • Dharma

    Dharma is a ransomware that uses security software installation to hide malicious activities.

    ransomwaredharma
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Renames multiple (80) files with added filename extension

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

    ransomware
  • Drops startup file 1 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 desktop.ini file(s) 13 IoCs
  • Drops file in System32 directory 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Interacts with shadow copies 2 TTPs 1 IoCs

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

    ransomware
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 10 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\CoronaVirus.exe
    "C:\Users\Admin\AppData\Local\Temp\CoronaVirus.exe"
    1⤵
    • Drops startup file
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2148
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2436
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:108
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:2024
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:276

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Initial Access

    Execution

    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

    2
    T1070

    File Deletion

    2
    T1070.004

    Modify Registry

    1
    T1112

    Credential Access

    Unsecured Credentials

    1
    T1552

    Credentials In Files

    1
    T1552.001

    Discovery

    Lateral Movement

    Collection

    Data from Local System

    1
    T1005

    Exfiltration

    Command and Control

    Impact

    Inhibit System Recovery

    2
    T1490

    Resource Development

    Reconnaissance

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\ProPlusWW.msi.id-D0CFDE0A.[coronavirus@qq.com].ncov
      Filesize

      24.4MB

      MD5

      4dbbc56de085a5bf50d5f1625924e0c9

      SHA1

      f6fc55f17036df677426c5c3117b61bcbc4029a7

      SHA256

      ec6bc776981674dbd2a7a25ed981774bbd93d2a590aa5eb54edd674ae40e68e1

      SHA512

      51ead4c83c39fcc620c99bb77f159ff8ea585a9be18488080b5dde37801808f6d2d7062177f20af336b879bbfed8c299b913b6ce4aabf352fcb317eb6195512b

      Download Submit
    • memory/2148-0-0x0000000000400000-0x000000000056F000-memory.dmp
      Filesize

      1.4MB

      Download
    • memory/2148-1-0x000000000A8C0000-0x000000000A8F4000-memory.dmp
      Filesize

      208KB

      Download
    • memory/2148-2-0x0000000000400000-0x000000000056F000-memory.dmp
      Filesize

      1.4MB

      Download
    • memory/2148-123-0x0000000000400000-0x000000000056F000-memory.dmp
      Filesize

      1.4MB

      Download
    • memory/2148-134-0x000000000A8C0000-0x000000000A8F4000-memory.dmp
      Filesize

      208KB

      Download