Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c2f9dc5f0495a6c…

MALICIOUS

PDF

41.1 KB Created: 2021-05-13 15:10:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3448e1a4263f86077f5b8cb0f52443d7 SHA-1: 7b54bf63cfd5c042cec613cae27ed098dcf0ca41 SHA-256: 0c2f9dc5f0495a6c5b11f42db45083a5d85c886a41ce8659eb8d83cf5acf1fe3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirectors and scam pages, specifically targeting users interested in game hacks and virtual currency like Robux. The heuristic firings confirm these links lead to malicious redirector infrastructure. While no scripts were directly extracted, the PDF structure and embedded links suggest a lure to external malicious content, likely for monetization or further payload delivery.

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/431946152/make-robux-game-hack In PDF document text
    • https://itv-grabungen.de/images/free-spins-coin-master-links-no-human-verification_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/hack-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/how-to-make-a-minecraft-client_GM479516143.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-promo-codes-for-roblox-2021_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-spins-promo-code-for-coin-master_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/coin-master-hack-spins-apk_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/avatar-the-last-airbender-roblox_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/link-for-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/coin-and-spin_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/how-do-u-hack-roblox_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/roblox-person_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/who-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/coin-master-game-free_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/coin-master-hacks-no-surveys_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/100-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/coin-master-spin-hack-without-verification_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/roblox-piano-hack_GM431946152.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_off000043e3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x43E3 24924 bytes
SHA-256: 213a77983d808c561f21a91ced5ac7475dd99c3a39e828c58f102eef8abc9ed1
font_01_sfnt_off00007d92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D92 18444 bytes
SHA-256: d485cf64ce85db08f49cebe049b1af1977bd392e7b632f71036820545e301f0d

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