Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ec529f8565e4f81…

MALICIOUS

PDF

34.9 KB Created: 2021-06-18 17:30:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ab33bad4b614869b19db3944001a0d38 SHA-1: d65d45a477bc6f62f68d9f7d30dbc7e5c578c44a SHA-256: 9ec529f8565e4f8115bbc96d8b4a36f157bdcdf2eb8e8c0ed05b937ca35af79a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links, including one pointing to a known malicious redirector infrastructure. The document body and extracted links suggest a lure for "game hacks" or "free generators", likely a social engineering tactic to trick users into visiting malicious sites. No scripts were extracted, but the presence of malicious links and the lure indicate a phishing or scam attempt.

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/account-roblox-free-2021-game-hack In PDF document text
    • http://elearning.mtsn1lamongan.sch.id/__statics/gudangsoal/files/robux-hack-2021-without-human-verification_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1lamongan.sch.id/__statics/gudangsoal/files/free-robux-generator-safe_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1lamongan.sch.id/__statics/gudangsoal/files/free-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn1lamongan.sch.id/__statics/gudangsoal/files/free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1lamongan.sch.id/__statics/gudangsoal/files/roblox-free-hair-girl_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1lamongan.sch.id/__statics/gudangsoal/files/can-you-upload-an-audio-to-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1lamongan.sch.id/__statics/gudangsoal/files/dbor-roblox-free-time-chamber_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1lamongan.sch.id/__statics/gudangsoal/files/roblox-attach-to-debugger-cheat-engine_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1lamongan.sch.id/__statics/gudangsoal/files/roblox-card-includes-free-virtual-item_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1lamongan.sch.id/__statics/gudangsoal/files/minecraft-free-download-unblocked_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn1lamongan.sch.id/__statics/gudangsoal/files/how-to-get-robux-for-free-instantly_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1lamongan.sch.id/__statics/gudangsoal/files/how-to-get-a-roblox-group-for-free_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1lamongan.sch.id/__statics/gudangsoal/files/codepour-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1lamongan.sch.id/__statics/gudangsoal/files/ahk-free-draw-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1lamongan.sch.id/__statics/gudangsoal/files/roblox-hack-dragon-ball-rage_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1lamongan.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-ps4_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn1lamongan.sch.id/__statics/gudangsoal/files/coin-master-free-coins-and-spins-app_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1lamongan.sch.id/__statics/gudangsoal/files/free-minecraft-skin-packs_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn1lamongan.sch.id/__statics/gudangsoal/files/roblox-hack-client_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1lamongan.sch.id/__statics/gudangsoal/files/robux-free-com_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_off00003083.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3083 22488 bytes
SHA-256: c79708dcfc12b050a217f7451758127bc6c576f01e466e90fc1c8ac73ad597c3
font_01_sfnt_off0000626b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x626B 19296 bytes
SHA-256: 47c62b0552ea8ec5716ba59682c1b3d8e7eb49ab1e93cdff47a10fdf0219d065

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