Malicious PDF — malware analysis report

Static analysis result for SHA-256 5db4816cf9c0bf6c…

MALICIOUS

PDF

35.0 KB Created: 2021-06-30 09:49:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1dedb490bb4df23c036e814def1d5155 SHA-1: 54e05234dfcb517f28515fb715a5273e90d949a2 SHA-256: 5db4816cf9c0bf6c88f4c5e9f7b2bb9241dec5baf5afca3dd95f6247a37b3a07
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 at http://netcdn.co/app/431946152/eazy-was-how-to-hack-into-a-roblox-account-game-hack. These links are presented as lures for game hacks and free in-game currency, indicating a phishing or scam attempt. The document's structure and embedded URLs suggest it is designed to redirect users to potentially malicious content or download further payloads.

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/eazy-was-how-to-hack-into-a-roblox-account-game-hack In PDF document text
    • http://sd-olimp.hr/files/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://sd-olimp.hr/files/promo-codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://sd-olimp.hr/files/coin-master-free-spins-link-fb_GM406889139.pdfIn PDF document text
    • https://www.sd-olimp.hr/files/how-to-hack-roblox-with-cookie-editor_GM431946152.pdfIn PDF document text
    • https://www.sd-olimp.hr/files/robux-com-free-robux_GM431946152.pdfIn PDF document text
    • http://sd-olimp.hr/files/descargar-menu-de-hacks-para-roblox_GM431946152.pdfIn PDF document text
    • https://www.sd-olimp.hr/files/free-robux-apk_GM431946152.pdfIn PDF document text
    • http://sd-olimp.hr/files/coin-master-hacker-club_GM406889139.pdfIn PDF document text
    • https://www.sd-olimp.hr/files/get-free-400-robux-robuxcodes_GM431946152.pdfIn PDF document text
    • http://sd-olimp.hr/files/free-one-piece-roblox-character_GM431946152.pdfIn PDF document text
    • http://sd-olimp.hr/files/roblox-hack-client_GM431946152.pdfIn PDF document text
    • https://www.sd-olimp.hr/files/roblox-counter-strike-cheats_GM431946152.pdfIn PDF document text
    • http://sd-olimp.hr/files/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
    • https://www.sd-olimp.hr/files/how-to-get-minecraft-for-free-on-xbox-360_GM479516143.pdfIn PDF document text
    • http://sd-olimp.hr/files/roblox-hack-club_GM431946152.pdfIn PDF document text
    • http://sd-olimp.hr/files/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://sd-olimp.hr/files/you-promised-my-son-free-robux_GM431946152.pdfIn PDF document text
    • https://www.sd-olimp.hr/files/free-roblox-object-en-vedette-code_GM431946152.pdfIn PDF document text
    • http://sd-olimp.hr/files/how-to-get-minecraft-for-free-on-android_GM479516143.pdfIn PDF document text
    • http://sd-olimp.hr/files/pastebm-free-roblox-accounts_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_off00002fe4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FE4 22468 bytes
SHA-256: 3588d719aac1628242d245b4fa9d33462ec8c89d0a3bb8e466bb1b4f0b5f1845
font_01_sfnt_off00006222.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6222 19524 bytes
SHA-256: 281e8bba485f998bb076f7679e574a0003d1b9e6d26f929a5d56a82743b85f9d

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