Malicious PDF — malware analysis report

Static analysis result for SHA-256 7611c5653ae83e8f…

MALICIOUS

PDF

34.8 KB Created: 2021-07-02 07:26:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 70483763a579c1a7dc5522b7b481d507 SHA-1: 955fff5c3980230bf03206a2ec79c9cb107b535b SHA-256: 7611c5653ae83e8fde098297bab6966fced27594cb6d87315ecd9e3834f43bf3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to websites offering free game hacks and currency generators, identified as a lure for malicious redirection. The document body and heuristics indicate a clear intent to redirect users to potentially harmful sites, such as the identified malicious redirector at http://netcdn.co/app/431946152/robux-de-free-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a phishing or social engineering 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/robux-de-free-game-hack In PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/robux-websites-that-work_GM431946152.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/coin-master-hack-2021-link_GM406889139.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/how-to-get-free-coins-on-flip-master_GM406889139.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/hack-noclimb-roblox-2021_GM431946152.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/free-download-roblox-mod-apk_GM431946152.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/coin-master-claim-spins_GM406889139.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/how-to-use-hacks-on-roblox-no-virus_GM431946152.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/free-robux-gen_GM431946152.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/coin-master-gameplay_GM406889139.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/nametag-fornite-hack-roblox_GM431946152.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/coin-master-hack-blogspot_GM406889139.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/how-get-free-clothes-on-roblox_GM431946152.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/free-robux-websites-no-human-verification_GM431946152.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/how-to-get-roblox-premium-for-free_GM431946152.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/coin-master-hack-xyz-2021_GM406889139.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/how-to-get-free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/moon-static-coin-master-generator-hacks-free_GM406889139.pdfIn PDF document text
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/robux-max-limit-roblox-free_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_off00003071.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3071 22740 bytes
SHA-256: 726ebb943c23045fd7795fe6dd9e10f08c317fe4611d0028f6153a8668682e34
font_01_sfnt_off00006387.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6387 18884 bytes
SHA-256: 1f607337bf1b36c72a8416773486ae5d5f06bcfada31e95678bdb2ae5df9c545