Malicious PDF — malware analysis report

Static analysis result for SHA-256 91501ee8326ed0ec…

MALICIOUS

PDF

44.2 KB Created: 2021-05-17 23:48:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 19e1c42d564ff8fd25f3b64197ea9bf3 SHA-1: c8fd931c2562a62cb1e1a17b42fc99ddcd2aa80a SHA-256: 91501ee8326ed0ec82ffb87176560eeb185c5319485a43589476ed5c8ac8f179
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to known malicious infrastructure, specifically promoting game hacks and generators. The document body and heuristics indicate a lure for free in-game items, which is a common social engineering tactic to drive users to malicious sites. While no scripts were explicitly extracted, the PDF structure itself contains actionable links that are the primary vector for malicious redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/479516143/minecraft-ios-mods-game-hack In PDF document text
    • https://www.banhngoncaocap.com/images/coin-master-35-13-hack-download_GM406889139.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/can-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/free-robux-codes-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/free-minecraft-gift-codes_GM479516143.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/coin-master-links-that-don-t-expire_GM406889139.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/free-spins-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/coin-master-hack-2021-link_GM406889139.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/cute-free-hair-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/how-do-you-get-roblox-money_GM431946152.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/minecraft-toys-for-free_GM479516143.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/coin-master-free-spin-link-twitter_GM406889139.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/coin-master-free-spins-and-coins-generator_GM406889139.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/coin-master-hack-apk-online_GM406889139.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/earn-free-robux-today_GM431946152.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/how-to-get-free-pet-food-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/how-to-get-minecraft-for-free-on-xbox_GM479516143.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/rbx-place-free-robux_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_off00004b58.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B58 28752 bytes
SHA-256: 95bbd76c5fc9dd6d611dc60172b35a3275224fee0356919900c013b6063f06bd
font_01_sfnt_off00008be4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BE4 17884 bytes
SHA-256: 69b1a480a514f825ff414667447eb1606ecae76b686202ffdf0553eb000475e9