Malicious PDF — malware analysis report

Static analysis result for SHA-256 dffcae59688c660c…

MALICIOUS

PDF

34.7 KB Created: 2021-06-18 02:32:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ed537666cbe72b86df391161159b4d65 SHA-1: ee0920e187c53f2c8adc9a186f1bcf7d29a34c76 SHA-256: dffcae59688c660c48e143002e2254cfc27e3afa84f875b12ef2b4088286760c
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 'free generator / game hack' lures. The document body and embedded URLs strongly suggest a phishing or scam attempt designed to trick users into visiting potentially harmful sites. No scripts were extracted, but the presence of malicious redirector links and the lure content indicate a high likelihood of a phishing attack.

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/free-h-robux-game-game-hack In PDF document text
    • https://www.e-learning.mtsn-1-pasangkayu.sch.id/__statics/gudangsoal/files/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.e-learning.mtsn-1-pasangkayu.sch.id/__statics/gudangsoal/files/links-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.e-learning.mtsn-1-pasangkayu.sch.id/__statics/gudangsoal/files/inject-hack-roblox-buides-club_GM431946152.pdfIn PDF document text
    • https://www.e-learning.mtsn-1-pasangkayu.sch.id/__statics/gudangsoal/files/minecraft-windows-10-edition-free_GM479516143.pdfIn PDF document text
    • https://www.e-learning.mtsn-1-pasangkayu.sch.id/__statics/gudangsoal/files/coin-master-hack-tool-pc-download_GM406889139.pdfIn PDF document text
    • https://www.e-learning.mtsn-1-pasangkayu.sch.id/__statics/gudangsoal/files/the-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.e-learning.mtsn-1-pasangkayu.sch.id/__statics/gudangsoal/files/roblox-group-free-robux_GM431946152.pdfIn PDF document text
    • https://www.e-learning.mtsn-1-pasangkayu.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • https://www.e-learning.mtsn-1-pasangkayu.sch.id/__statics/gudangsoal/files/free-spins-coin-master-links-blogspot_GM406889139.pdfIn PDF document text
    • https://www.e-learning.mtsn-1-pasangkayu.sch.id/__statics/gudangsoal/files/bloxland-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://www.e-learning.mtsn-1-pasangkayu.sch.id/__statics/gudangsoal/files/free-robux-giveaway-live_GM431946152.pdfIn PDF document text
    • https://www.e-learning.mtsn-1-pasangkayu.sch.id/__statics/gudangsoal/files/master-coin-hack-apk_GM406889139.pdfIn PDF document text
    • https://www.e-learning.mtsn-1-pasangkayu.sch.id/__statics/gudangsoal/files/robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://www.e-learning.mtsn-1-pasangkayu.sch.id/__statics/gudangsoal/files/how-do-i-get-robux_GM431946152.pdfIn PDF document text
    • https://www.e-learning.mtsn-1-pasangkayu.sch.id/__statics/gudangsoal/files/hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.e-learning.mtsn-1-pasangkayu.sch.id/__statics/gudangsoal/files/free-tiktok-fans-and-likes_GM835599320.pdfIn PDF document text
    • https://www.e-learning.mtsn-1-pasangkayu.sch.id/__statics/gudangsoal/files/adopt-me-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://www.e-learning.mtsn-1-pasangkayu.sch.id/__statics/gudangsoal/files/how-to-gift-robux-on-mobile_GM431946152.pdfIn PDF document text
    • https://www.e-learning.mtsn-1-pasangkayu.sch.id/__statics/gudangsoal/files/freespinandcoinblogspot-com-2021-11-coinmasterfreespins_GM406889139.pdfIn PDF document text
    • https://www.e-learning.mtsn-1-pasangkayu.sch.id/__statics/gudangsoal/files/roblox-speed-hack_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_off0000331e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x331E 22072 bytes
SHA-256: 97ee165383a23d695f7bca5be8590d0ce907efb5d133dd5de75284c6132c83d1
font_01_sfnt_off00006391.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6391 18792 bytes
SHA-256: 55fa870db299b1a0a3352f886ee1c5c0dfa8027fb34ce8d97f2706cb90543171