Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab4a2f5694e96078…

MALICIOUS

PDF

34.1 KB Created: 2021-06-25 14:54:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4f5f15c0612ee683c52d8fb7fd0f4b77 SHA-1: 098d23469482d9562aef3574a0bb67d6d44bc7c2 SHA-256: ab4a2f5694e96078ab0928e3106596a529464841b91d233c8501c032c2f75de9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure for free game currency and hacks, directing users to a known malicious redirector. The embedded URLs and document body content strongly suggest a phishing or scam attempt designed to lead users to potentially harmful sites. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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-robux-si-game-hack In PDF document text
    • http://itc-nekretnine.hr/files/coin-master-free-spins-gratis_GM406889139.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/free-promo-codes-roblox_GM431946152.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/roblox-hack-ios_GM431946152.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/hacks-roblox_GM431946152.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/coin-master-free-spins-coins_GM406889139.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/pokemon-go-free-id_GM1094591345.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/hack-coin-master-apk-31_GM406889139.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/free-spin-coin-master-online_GM406889139.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/robux-generator-app-hack_GM431946152.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/free-online-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/jailbreak-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/roblox-avatar-editor-free_GM431946152.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/free-robux-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/spin-rewards-coin-master_GM406889139.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_off00002e74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E74 22588 bytes
SHA-256: 59ad6ff5a39ffb5f64e42e56824cbdf4085bfa200b38b6c2b61d63f60552fc13
font_01_sfnt_off000060f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60F1 18836 bytes
SHA-256: 76c2759b50dd03dd4f414f04a3812797a51dd76fedbbff5afb3d076f4e062ee6

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