Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b356f46c64b2cfa…

MALICIOUS

PDF

41.1 KB Created: 2021-05-14 09:00:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 34dceea17425812b0b132814e8fd77ba SHA-1: 78ad67377e5707d01d4d4394148198b8f3b81fa9 SHA-256: 0b356f46c64b2cfabc10f9cbf4cff1b0272efa1b465171656676538d1eb32a4a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and infrastructure, disguised as "game hacks" or "free generators". The document body and embedded URLs strongly suggest a lure for users seeking in-game currency or cheats, leading them to potentially malicious sites. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate malicious redirection capabilities.

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/hackear-coin-master-android-game-hack In PDF document text
    • https://grovehilloutfitters.com/images/free-robux-place_GM431946152.pdfIn PDF document text
    • https://grovehilloutfitters.com/images/free-roebucks-no-human-verification_GM431946152.pdfIn PDF document text
    • https://grovehilloutfitters.com/images/gamehunters-club-coin-master_GM406889139.pdfIn PDF document text
    • https://grovehilloutfitters.com/images/coin-master-hack-unlimited-spins_GM406889139.pdfIn PDF document text
    • https://grovehilloutfitters.com/images/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://grovehilloutfitters.com/images/coin-master-tricks-and-hacks_GM406889139.pdfIn PDF document text
    • https://grovehilloutfitters.com/images/como-hackear-coin-master-2021-espaol_GM406889139.pdfIn PDF document text
    • https://grovehilloutfitters.com/images/how-to-win-free-robux_GM431946152.pdfIn PDF document text
    • https://grovehilloutfitters.com/images/coin-master-free-spin-app-2021_GM406889139.pdfIn PDF document text
    • https://grovehilloutfitters.com/images/how-to-get-free-spins-on-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • https://grovehilloutfitters.com/images/official-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://grovehilloutfitters.com/images/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • https://grovehilloutfitters.com/images/coin-master-hack-spins-app_GM406889139.pdfIn PDF document text
    • https://grovehilloutfitters.com/images/facebook-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://grovehilloutfitters.com/images/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://grovehilloutfitters.com/images/robux-gratis_GM431946152.pdfIn PDF document text
    • https://grovehilloutfitters.com/images/spin-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • https://grovehilloutfitters.com/images/coin-master-free-spins-uk_GM406889139.pdfIn PDF document text
    • https://grovehilloutfitters.com/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://grovehilloutfitters.com/images/hack-coin-master-ios-download_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_off000048e3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48E3 24032 bytes
SHA-256: 8397607f7e0d21b851861fb404f54eeb9e4d89e5ef15a67db096f90e5c31446b
font_01_sfnt_off00007f64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F64 17888 bytes
SHA-256: b97c247584d5923730467042a27b306812426488902e18325f6e1cb1e8c9f710

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