Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a2a545a768387ec…

MALICIOUS

PDF

34.3 KB Created: 2021-06-29 02:52:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3b3697dda5bcb4f060903ecb857455a7 SHA-1: a8238735e719c011dd99285f53eb45f972601f35 SHA-256: 8a2a545a768387ecb9d2572df5d1585e988984918f95ddb3e27072f4c4c937fd
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting game hacks and generators. The heuristic firings indicate that these links are associated with known malicious redirectors and lure users with promises of free in-game currency or cheats. While no scripts were explicitly extracted, the nature of the links and the document's content suggest a phishing or scam attempt designed to lead users to potentially harmful websites.

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/egg-farm-simulator-hack-roblox-game-hack In PDF document text
    • https://www.tena-g.hr/files/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/rroblox-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.tena-g.hr/files/free-skin-roblox-2021_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/minecraft-free-online_GM479516143.pdfIn PDF document text
    • https://tena-g.hr/files/como-tener-robux-hacks_GM431946152.pdfIn PDF document text
    • https://www.tena-g.hr/files/free-money-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.tena-g.hr/files/make-free-robux_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/how-to-hack-roblox-jailbreak-on-ipad_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/free-roblox-account-generator_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/pokemon-go-fake-gps_GM1094591345.pdfIn PDF document text
    • https://www.tena-g.hr/files/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • https://www.tena-g.hr/files/free-coin-master-stuff_GM406889139.pdfIn PDF document text
    • https://tena-g.hr/files/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/can-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://tena-g.hr/files/roblox-jailbreak-hack-installer_GM431946152.pdfIn PDF document text
    • https://www.tena-g.hr/files/free-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • https://www.tena-g.hr/files/free-promo-codes-roblox-november-2021_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/minecraft-xray-hack_GM479516143.pdfIn PDF document text
    • https://tena-g.hr/files/coin-master-34-4-free-download_GM406889139.pdfIn PDF document text
    • https://tena-g.hr/files/free-robux-on-ipad-ios_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
font_00_sfnt_off00002f36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F36 22176 bytes
SHA-256: 460e2ffbdc14394b7456c29928d8d81171adbc31170471d40e6c84f4e8dd4a4c
font_01_sfnt_off0000600b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x600B 19444 bytes
SHA-256: 287dfebac557bc7015cee35201ddbe17e1ac84bd94bc8f544d9d26975682ead5

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