Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0e0f2ef85153399…

MALICIOUS

PDF

43.2 KB Created: 2021-05-20 05:23:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d1d69bd9fcd0885f5e7a30b75ad29575 SHA-1: fa8d6c70710a2dac884f5a6e269e9d41bc9ec08e SHA-256: c0e0f2ef85153399eb73f8d2d8428401917bffb3ed1e4952aa0d4c1ea7ccbeab
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, including a known malicious redirector, under the guise of providing free game-related content. The primary link directs users to 'netcdn.xyz' which is associated with game hacks and generators. The presence of numerous links to other PDF files hosted on 'prazdnik-kzn.ru' suggests a campaign distributing lures for in-game currency or cheats. No scripts were extracted, but the document's structure and embedded links indicate a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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-xbox-360-free-download-code-game-hack In PDF document text
    • http://prazdnik-kzn.ru/images/how-to-get-more-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://prazdnik-kzn.ru/images/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://prazdnik-kzn.ru/images/how-to-get-free-robux-without-surveys_GM431946152.pdfIn PDF document text
    • http://prazdnik-kzn.ru/images/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://prazdnik-kzn.ru/images/roblox-fun-robux_GM431946152.pdfIn PDF document text
    • http://prazdnik-kzn.ru/images/cool-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://prazdnik-kzn.ru/images/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://prazdnik-kzn.ru/images/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://prazdnik-kzn.ru/images/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://prazdnik-kzn.ru/images/roblox-group-free-robux_GM431946152.pdfIn PDF document text
    • http://prazdnik-kzn.ru/images/robux-rewards_GM431946152.pdfIn PDF document text
    • http://prazdnik-kzn.ru/images/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://prazdnik-kzn.ru/images/coin-master-cards-free_GM406889139.pdfIn PDF document text
    • http://prazdnik-kzn.ru/images/free-robux-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • http://prazdnik-kzn.ru/images/coin-master-free-spins-today-new_GM406889139.pdfIn PDF document text
    • http://prazdnik-kzn.ru/images/minecraft-18-9-hacked-client_GM479516143.pdfIn PDF document text
    • http://prazdnik-kzn.ru/images/mcpe-master-coins-hack-download_GM406889139.pdfIn PDF document text
    • http://prazdnik-kzn.ru/images/robux-download_GM431946152.pdfIn PDF document text
    • http://prazdnik-kzn.ru/images/free-appsfor-coin-master-daily-rewards_GM406889139.pdfIn PDF document text
    • http://prazdnik-kzn.ru/images/minecraft-mod-updater_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_off0000492c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x492C 25356 bytes
SHA-256: 5bbaeda03a066a46f43cbf802cc3f05d10890f7794846c00e97c924432ac3902
font_01_sfnt_off000082ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82EE 19400 bytes
SHA-256: 30b784ba3b356ec0b4997106bff5d55ef8f2e70b19d5a22bd2903de8139c4554

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