Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe929677c2b5a5e1…

MALICIOUS

PDF

37.5 KB Created: 2021-06-17 17:12:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 85a32040742cfc573cde1994d6aed95e SHA-1: 0b55a8ed75fd7f80e951a016ab728d5c5b267647 SHA-256: fe929677c2b5a5e16ee0420442f415ce4d92fda388166d06d2233f2cd8b51e16
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, disguised as game hacks and free generators. The primary malicious URL identified is http://netcdn.co/app/431946152/roblox-item-giver-hack-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or malware distribution attempt, likely initiated via spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

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 http://netcdn.co/app/431946152/roblox-item-giver-hack-game-hack In PDF document text
    • https://pneukalousek.cz/images/roblox-how-to-hack-gears-online-rpg-using-cheats_GM431946152.pdfIn PDF document text
    • https://pneukalousek.cz/images/pubg-uc-100-bonus_GM1330123889.pdfIn PDF document text
    • https://pneukalousek.cz/images/coin-master-heaven-free-spins-link_GM406889139.pdfIn PDF document text
    • https://pneukalousek.cz/images/claimrobux-net_GM431946152.pdfIn PDF document text
    • https://pneukalousek.cz/images/coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://pneukalousek.cz/images/minecraft-hacker-skin_GM479516143.pdfIn PDF document text
    • https://pneukalousek.cz/images/how-to-download-roblox-hack-tool_GM431946152.pdfIn PDF document text
    • https://pneukalousek.cz/images/how-to-hack-coin-master-in-pc_GM406889139.pdfIn PDF document text
    • https://pneukalousek.cz/images/hackear-juego-coin-master_GM406889139.pdfIn PDF document text
    • https://pneukalousek.cz/images/item-gratuit-dans-le-catalogue-roblox-hacker_GM431946152.pdfIn PDF document text
    • https://pneukalousek.cz/images/robux-hack-extension_GM431946152.pdfIn PDF document text
    • https://pneukalousek.cz/images/free-robux-for-everyone_GM431946152.pdfIn PDF document text
    • https://pneukalousek.cz/images/roblox-adidas-hoodie-free_GM431946152.pdfIn PDF document text
    • https://pneukalousek.cz/images/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://pneukalousek.cz/images/coin-master-generator-free_GM406889139.pdfIn PDF document text
    • https://pneukalousek.cz/images/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • https://pneukalousek.cz/images/coin-master-60-spins_GM406889139.pdfIn PDF document text
    • https://pneukalousek.cz/images/free-executors-for-roblox_GM431946152.pdfIn PDF document text
    • https://pneukalousek.cz/images/free-robux-easy-and-fast_GM431946152.pdfIn PDF document text
    • https://pneukalousek.cz/images/roblox-arc-of-elements-hack_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 6

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
stream_002_off00003a5b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3A5B 22860 bytes
SHA-256: c2a7c515a8ad82d05acac1a46d91e5345d5ed7ab4f441485b7637a669adf4c14
font_01_sfnt_off00006da9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DA9 19068 bytes
SHA-256: fcc44dc10bbfcbc61c26d5644bc180766b605403f3281f54afb78838c07489ba

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