Malicious PDF — malware analysis report

Static analysis result for SHA-256 90d8ee4b3a4f2709…

MALICIOUS

PDF

34.4 KB Created: 2021-06-26 12:43:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 2b63ff053c492bec19fb470ad08822cc SHA-1: c11cbce3c64bbbfc17aa8a51dd3e052a324659b6 SHA-256: 90d8ee4b3a4f27091ac1e8c3102c2b2fef6d936e53d08c31c6fa302d0d4d582f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.co/app/431946152/free-cruch-skin-for-roblox-game-hack PDF link annotation
    • http://www.sanjosedeminas.gob.ec/images/minecraft-free-trial_GM479516143.pdfIn PDF document text
    • http://www.sanjosedeminas.gob.ec/images/how-to-get-free-robux-on-mac-2021_GM431946152.pdfIn PDF document text
    • http://www.sanjosedeminas.gob.ec/images/instalar-hacks-para-counter-blox-roblox-offensive_GM431946152.pdfIn PDF document text
    • http://www.sanjosedeminas.gob.ec/images/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://www.sanjosedeminas.gob.ec/images/how-to-get-free-robux-on-pc_GM431946152.pdfIn PDF document text
    • http://www.sanjosedeminas.gob.ec/images/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.sanjosedeminas.gob.ec/images/instantrobux_GM431946152.pdfIn PDF document text
    • http://www.sanjosedeminas.gob.ec/images/archery-master-3d-coins-hack_GM406889139.pdfIn PDF document text
    • http://www.sanjosedeminas.gob.ec/images/coin-master-hack-reddit_GM406889139.pdfIn PDF document text
    • http://www.sanjosedeminas.gob.ec/images/robux-sign_GM431946152.pdfIn PDF document text
    • http://www.sanjosedeminas.gob.ec/images/daily-coin-master-free_GM406889139.pdfIn PDF document text
    • http://www.sanjosedeminas.gob.ec/images/roblox-exploit-download_GM431946152.pdfIn PDF document text
    • http://www.sanjosedeminas.gob.ec/images/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.sanjosedeminas.gob.ec/images/what-is-coin-master-app_GM406889139.pdfIn PDF document text
    • http://www.sanjosedeminas.gob.ec/images/oprewards-com-login_GM431946152.pdfIn PDF document text
    • http://www.sanjosedeminas.gob.ec/images/real-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://www.sanjosedeminas.gob.ec/images/coin-master-daily-spin-link_GM406889139.pdfIn PDF document text
    • http://www.sanjosedeminas.gob.ec/images/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://www.sanjosedeminas.gob.ec/images/minecraft-116-apk-download_GM479516143.pdfIn PDF document text
    • http://www.sanjosedeminas.gob.ec/images/free-tiktok-followers-no-survey_GM835599320.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E27 22736 bytes
SHA-256: d9799e6df220e01ee517de55d7108d01b667d0d07a0072e540dae56203bd7802
font_01_sfnt_off000060f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60F9 19248 bytes
SHA-256: c1a2b8fbb302fe214c0de4c1c0f4742272adb9dbd10b6f1b5efa6c6dc3d2d52e

Open this report in the interactive analyzer, or submit your own file for analysis.