Malicious PDF — malware analysis report

Static analysis result for SHA-256 870660412653f934…

MALICIOUS

PDF

45.2 KB Created: 2021-06-03 22:39:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 18270d86215a7f73f22321b2a7d761a8 SHA-1: d899e581cafc9809435418f8c741d6b6a663d980 SHA-256: 870660412653f934f4e59a732512af4a6a6a6490807322164f98b19015cf0849
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious infrastructure, specifically targeting users with lures related to game hacks and cheats. The primary malicious URL identified is https://netcdn.online/app/479516143/minecraft-pc-download-free-full-version-game-hack. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly indicate a social engineering tactic to drive users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.online/app/479516143/minecraft-pc-download-free-full-version-game-hack In PDF document text
    • http://digilib.stimlog.ac.id/repository/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-spin-link_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/coin-master-game-hacking-tricks_GM406889139.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/roblox-group-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-get-free-coins-on-flip-master_GM406889139.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/free-robux-place_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/bloxawards-com-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/how-to-get-100-robux-for-free_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/robux-codes_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/coin-master-100-spin-hack_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/minecraft-free-download-pc_GM479516143.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/is-pokemon-go-fest-free_GM1094591345.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/wurst-112_GM479516143.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/how-to-win-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/freerobux-hack-us_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/www-free-robux-com_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/robux-hack-generator_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_004_off000052e1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x52E1 25052 bytes
SHA-256: 0208ba0fad127782848b42be5bbe04334da2bdbeb54e1e91e3794410ce05fd0f
font_01_sfnt_off00008cb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CB0 18716 bytes
SHA-256: 489221dfcb925ba69d0ba840bced02970ab19491774c28c5754cc19987365276

Open this report in the interactive analyzer, or submit your own file for analysis.