Overview

overview

10

Static

static

3

2023-05-12...is.exe

windows7-x64

10

2023-05-12...is.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    151s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    13/05/2023, 03:11

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General

  • Target
    2023-05-12_786ce74458720ec55b824586d2e5666d_crysis.exe
  • Size 92KB
  • Sample230513-dprdwshf2w
  • SHA256 1a05cba6870798d2e73001bf872e4d579460c380c060fd051f33a703f504b8a3
  • MD5 SHA1 SHA512 SSDEEP
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
  • Drops startup file 4 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) 54 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\2023-05-12_786ce74458720ec55b824586d2e5666d_crysis.exe
    "C:\Users\Admin\AppData\Local\Temp\2023-05-12_786ce74458720ec55b824586d2e5666d_crysis.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:2000
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1996
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:524
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:832
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1540

    Network

          MITRE ATT&CK Enterprise v6

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          Downloads

          OWOW64WW.cab.id-94DBCA31.[[email protected]].data
          • Path C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\OWOW64WW.cab.id-94DBCA31.[[email protected]].data
          • Size 23.5MB
          • SHA256 100a03493fff29fd6042aedee800bf62ad081396bd1f4e8132f37cf3ba970147
          • MD5 SHA1 SHA512 SSDEEP
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