Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1c95edc9163ffd9…

MALICIOUS

PDF

47.8 KB Created: 2021-05-13 06:03:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: d044d76454f31bfc65fb1ff3bffbf2ac SHA-1: 69d0f6bffd469c85a3d550d2c299efc1eeec9b68 SHA-256: f1c95edc9163ffd9a6e1c81b3cb1674df441a196bdbcc03995ee5b9642ad5a4c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that lure users with promises of free game currency or hacks. The primary URL, https://netcdn.xyz/app/431946152/earn-free-robux-today-game-hack, is identified as a game hack redirector. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect the user to a malicious site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9013

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 https://netcdn.xyz/app/431946152/earn-free-robux-today-game-hack PDF link annotation
    • http://www.homesweethome.pl/images/minecraft-hack-download_GM479516143.pdfIn PDF document text
    • http://www.homesweethome.pl/images/hack-to-send-gold-cards-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.homesweethome.pl/images/hack-master-coin-pc_GM406889139.pdfIn PDF document text
    • http://www.homesweethome.pl/images/haktuts-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.homesweethome.pl/images/coin-master-heaven-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://www.homesweethome.pl/images/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://www.homesweethome.pl/images/free-robux-quiz_GM431946152.pdfIn PDF document text
    • http://www.homesweethome.pl/images/coin-master-links-that-don-t-expire_GM406889139.pdfIn PDF document text
    • http://www.homesweethome.pl/images/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://www.homesweethome.pl/images/free-daily-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.homesweethome.pl/images/free-robux-only-username_GM431946152.pdfIn PDF document text
    • http://www.homesweethome.pl/images/how-to-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://www.homesweethome.pl/images/cm-spin-link_GM406889139.pdfIn PDF document text
    • http://www.homesweethome.pl/images/how-to-use-scripts-in-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.homesweethome.pl/images/coin-master-hack-app-2021_GM406889139.pdfIn PDF document text
    • http://www.homesweethome.pl/images/easy-robux-generator_GM431946152.pdfIn PDF document text
    • http://www.homesweethome.pl/images/www-rbxhut-com_GM431946152.pdfIn PDF document text
    • http://www.homesweethome.pl/images/robuxglobalcom_GM431946152.pdfIn PDF document text
    • http://www.homesweethome.pl/images/haktuts-2021-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://www.homesweethome.pl/images/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004d96.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D96 28408 bytes
SHA-256: df23ef15d97b0492436d563522440b2934aff8dd9d61e429a655b8fa6b2a1f9e
font_01_sfnt_off00008dee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DEE 2824 bytes
SHA-256: 94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4
font_02_sfnt_off0000979d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x979D 18596 bytes
SHA-256: 856adb635f1df42b1ab7aec7f905735c2cb2dfebd4088312a1c80dc48447787c