Malicious PDF — malware analysis report

Static analysis result for SHA-256 ecceba17119ef040…

MALICIOUS

PDF

42.5 KB Created: 2021-05-18 01:55:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 74235a94d27342f90ebd80e14e2e361c SHA-1: a0676493422fa2f92874f6af05f85c212b9e5cdb SHA-256: ecceba17119ef040aced6f505b2abcc7dfd344c4510779baebd9045173df212a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, masquerading as game hacks or free generators. The ML classifier strongly flagged this PDF as malicious. The presence of embedded URLs and the nature of the lures suggest an attempt to trick users into visiting potentially harmful sites, likely for further malware delivery or phishing.

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/479516143/minecraft-bedrock-free-download-pc-game-hack In PDF document text
    • http://uristdona.ru/images/coin-master-free-spins-and-coins-app-download_GM406889139.pdfIn PDF document text
    • http://uristdona.ru/images/easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://uristdona.ru/images/free-robux-android_GM431946152.pdfIn PDF document text
    • http://uristdona.ru/images/coin-master-online-hack_GM406889139.pdfIn PDF document text
    • http://uristdona.ru/images/coin-master-3533-android-hack_GM406889139.pdfIn PDF document text
    • http://uristdona.ru/images/coin-master-spin-blogspot_GM406889139.pdfIn PDF document text
    • http://uristdona.ru/images/is-minecraft-realms-free_GM479516143.pdfIn PDF document text
    • http://uristdona.ru/images/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • http://uristdona.ru/images/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://uristdona.ru/images/best-free-roblox-executor_GM431946152.pdfIn PDF document text
    • http://uristdona.ru/images/coin-master-spins_GM406889139.pdfIn PDF document text
    • http://uristdona.ru/images/flip-master-free-coins_GM406889139.pdfIn PDF document text
    • http://uristdona.ru/images/how-to-get-hacks-on-roblox_GM431946152.pdfIn PDF document text
    • http://uristdona.ru/images/coin-master-hack-8-ball-pool_GM406889139.pdfIn PDF document text
    • http://uristdona.ru/images/free-coins-for-coin-master-blogger_GM406889139.pdfIn PDF document text
    • http://uristdona.ru/images/wurst-18_GM479516143.pdfIn PDF document text
    • http://uristdona.ru/images/free-minecraft-education-edition_GM479516143.pdfIn PDF document text
    • http://uristdona.ru/images/daily-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://uristdona.ru/images/coin-master-hack-version-33-2_GM406889139.pdfIn PDF document text
    • http://uristdona.ru/images/free-minecraft-realms-to-join_GM479516143.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_off00004917.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4917 25232 bytes
SHA-256: d90f6b051ca5859e30bc7662dd5dd50cb3c6440331724d06222a7ca75257666d
font_01_sfnt_off00008249.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8249 18828 bytes
SHA-256: 744b4361c7b50ab0c54bda7008ddb1699961116dc3c405c5ee3c1e77c5f65438

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