Malicious PDF — malware analysis report

Static analysis result for SHA-256 c10191ddc9f43852…

MALICIOUS

PDF

35.4 KB Created: 2021-06-26 08:38:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5445602826619d1faa829a6f4326b032 SHA-1: c881ab3880a0630ab94917ff7b12aa37b869808c SHA-256: c10191ddc9f438520f9c23afcb9b491731d103eecd7f258019ad00deaba9abff
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting game hacks and cheats. The primary lure appears to be related to 'Hide Cheat Engine From Roblox'. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate a phishing or redirection attack designed to trick users into downloading potentially harmful content or visiting malicious sites.

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 http://netcdn.co/app/431946152/hide-cheat-engine-from-roblox-game-hack In PDF document text
    • http://pustaka.bbppketindan.info//repository/free-roblox-accessories_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-hack-version-download-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/app-store-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/roblox-free-t-shirt-adidas_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/hacks-para-roblox-robux-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/microsoft-rewards-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/admin-roblox-free-download_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/minecraft-tower-defense-hacked_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/roblox-printables-free_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-robux-accounts-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/minecraft-sign-up-free_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/ho-wto-hack-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/roblox-hacks-client_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-free-pet-food_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/how-much-robux-can-you-get-with-1-million-dollars_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-money-hack_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-get-a-free-keycard-in-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/mcpe-master-hack-coin-apk_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
font_00_sfnt_off000030f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30F1 22960 bytes
SHA-256: 1cf9504117ec6314229da520f200e4a2a679e9928688de96f7b88c09c9228135
font_01_sfnt_off00006431.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6431 19472 bytes
SHA-256: 3824a409acd1118e5bfd365dc9966201e56c65c45b7ceef0182bc7f9c76df9c7

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