Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9503f8022b390db…

MALICIOUS

PDF

43.2 KB Created: 2021-05-11 16:33:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 840146367f247bbeddeb13bee189d268 SHA-1: 34678a3db453478f24976444f7ff7518a0fe765a SHA-256: c9503f8022b390db84cbf681e10ed48598b4e96700f19fe4330fb23d97419dca
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically advertising free game currency or hacks. The primary redirect URL is https://netcdn.xyz/app/431946152/get-free-robux-no-human-verification-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a social engineering lure to drive users to potentially malicious websites. The ML classifier also flagged this PDF with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/get-free-robux-no-human-verification-game-hack In PDF document text
    • http://bagliomangiapane.it/images/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
    • http://bagliomangiapane.it/images/coin-master-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • http://bagliomangiapane.it/images/free-spins-on-coin-master-cheat_GM406889139.pdfIn PDF document text
    • http://bagliomangiapane.it/images/free-robux-websites-2021_GM431946152.pdfIn PDF document text
    • http://bagliomangiapane.it/images/free-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://bagliomangiapane.it/images/coin-master-free-spin-and-coin-link-today_GM406889139.pdfIn PDF document text
    • http://bagliomangiapane.it/images/minecraft-games-free-to-play-online_GM479516143.pdfIn PDF document text
    • http://bagliomangiapane.it/images/free-old-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://bagliomangiapane.it/images/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://bagliomangiapane.it/images/coin-master-hack-version-2021-download_GM406889139.pdfIn PDF document text
    • http://bagliomangiapane.it/images/minecraft-bedrock-free-server-hosting_GM479516143.pdfIn PDF document text
    • http://bagliomangiapane.it/images/earnrobux_GM431946152.pdfIn PDF document text
    • http://bagliomangiapane.it/images/to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://bagliomangiapane.it/images/minecraft-clipart-free_GM479516143.pdfIn PDF document text
    • http://bagliomangiapane.it/images/free-coin-spin-daily-link-coin-master_GM406889139.pdfIn PDF document text
    • http://bagliomangiapane.it/images/simplysarc_GM479516143.pdfIn PDF document text
    • http://bagliomangiapane.it/images/minecraft-java-free-trial_GM479516143.pdfIn PDF document text
    • http://bagliomangiapane.it/images/spin-free-coin-master_GM406889139.pdfIn PDF document text
    • http://bagliomangiapane.it/images/coin-master-hack-reddit_GM406889139.pdfIn PDF document text
    • http://bagliomangiapane.it/images/robux-prices_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004ba2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BA2 24840 bytes
SHA-256: 534491263f5ad918251cfb1b46d578bb749373f279730e7eccda03915873586f
font_01_sfnt_off000084e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84E8 18860 bytes
SHA-256: 77094cb8e4b41d81131149df95963a95cd1356d500cc75fcdf894a2f9afc6be7

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