Malicious PDF — malware analysis report

Static analysis result for SHA-256 bac0badfe241582d…

MALICIOUS

PDF

40.5 KB Created: 2021-05-16 09:36:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a5168a1f21da7f5d0d01ce07f0c53757 SHA-1: 07e64acf0b8984393e10cd15aa065fa9d0a9a045 SHA-256: bac0badfe241582d4f9affe24b5286d8062000cf6952b089eed34ff21fb9c86b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs and a call-to-action phrase, strongly suggesting a lure for users to click on malicious links. The ML classifier also flagged this PDF with high confidence. The presence of URLs related to game cheats and free currency indicates a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/406889139/how-can-i-get-free-spins-on-coin-master-game-hack In PDF document text
    • https://itv-grabungen.de/images/minecraft-hacker-skin_GM479516143.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-robux-reddit_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/how-to-get-1-million-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-game-pack-coin-master_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/get-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/coin-master-free-chip_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/orewards-com-free-robux_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/play-games-for-robux_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/op-rewards-free-robux_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/coin-master-35-16-hack-apk_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/minecraft-hacks-18-9_GM479516143.pdfIn PDF document text
    • https://itv-grabungen.de/images/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/coin-master-free-spins-glitch_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-spin-link-of-coin-master_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/flame-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/coin-master-free-coins-and-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/coin-master-hack-game_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_off000046a7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x46A7 23760 bytes
SHA-256: be295a427e0abd14bf4474bed239ee4b6639727d9f73a1a09109382e839afea4
font_01_sfnt_off00007c99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C99 18052 bytes
SHA-256: f4ab70c7a1b321e89283bf56011259b2481f340c7b70b557de06403c5562b8cd

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