Malicious PDF — malware analysis report

Static analysis result for SHA-256 0427ffcb21416639…

MALICIOUS

PDF

41.6 KB Created: 2021-05-11 17:31:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: a5d802f2c3552e08cfbe88ddb84ab42e SHA-1: 9fee3790624261d4898b0d48b6745f7b5f754e7c SHA-256: 0427ffcb214166396bb1c8692dead0eea402ae10760d5004324f83941f13cfdb
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links and a lure related to game hacks and generators, strongly suggesting a phishing or malware distribution attempt. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of embedded URIs and the nature of the lure indicate a high likelihood of directing users to malicious websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/479516143/free-multiplayer-minecraft-server-game-hack PDF link annotation
    • https://eleganceautospa.ca/images/minecraft-windows-10-hacks_GM479516143.pdfIn PDF document text
    • https://eleganceautospa.ca/images/robux-only_GM431946152.pdfIn PDF document text
    • https://eleganceautospa.ca/images/free-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • https://eleganceautospa.ca/images/coin-master-spin-ml_GM406889139.pdfIn PDF document text
    • https://eleganceautospa.ca/images/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdfIn PDF document text
    • https://eleganceautospa.ca/images/coin-master-hack-for-android_GM406889139.pdfIn PDF document text
    • https://eleganceautospa.ca/images/free-spins-on-coin-master-link_GM406889139.pdfIn PDF document text
    • https://eleganceautospa.ca/images/coin-master-level-3_GM406889139.pdfIn PDF document text
    • https://eleganceautospa.ca/images/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • https://eleganceautospa.ca/images/minecraft-free-download-no-virus_GM479516143.pdfIn PDF document text
    • https://eleganceautospa.ca/images/minecraft-apk-download-v1-144-2-free_GM479516143.pdfIn PDF document text
    • https://eleganceautospa.ca/images/win-free-robux_GM431946152.pdfIn PDF document text
    • https://eleganceautospa.ca/images/how-to-get-free-roblox-hair_GM431946152.pdfIn PDF document text
    • https://eleganceautospa.ca/images/how-to-get-free-clothes-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://eleganceautospa.ca/images/coin-master-pet-food-hack_GM406889139.pdfIn PDF document text
    • https://eleganceautospa.ca/images/free-coin-spin-daily-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://eleganceautospa.ca/images/how-can-you-get-robux_GM431946152.pdfIn PDF document text
    • https://eleganceautospa.ca/images/how-to-get-free-spins-on-coin-master-without-waiting_GM406889139.pdfIn PDF document text
    • https://eleganceautospa.ca/images/free-robux-today_GM431946152.pdfIn PDF document text
    • https://eleganceautospa.ca/images/coin-master-free-coins-and-spins-2021_GM406889139.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
stream_003_off00004aa1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AA1 23968 bytes
SHA-256: 96de6e85bc7465780235d217aed8a356e3d506543204bada747e8d9f511afe2c
font_01_sfnt_off0000807f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x807F 18252 bytes
SHA-256: 15432e288a3c492c6d4ea8af11726bc455bd5b0901c9f366813dc1a1d3aad7a5

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