Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a1aa92eb56ed697…

MALICIOUS

PDF

41.3 KB Created: 2021-05-13 22:12:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 51b869d7ae33f73ef3b3c58248282c2b SHA-1: ad3b6cc73573fd60e5de1503206f0c76cf26e7d3 SHA-256: 2a1aa92eb56ed69709fa1232ce1adea6bc73c4e2d0d9da06e32a673214028c43
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links pointing to a known malicious redirector, designed to lure users into clicking on what appears to be a 'game hack' or 'free generator'. The document body, though partially obfuscated, reinforces this lure with related keywords. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/406889139/coin-master-hack-reddit-game-hack In PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/coin-master-hack-tool-for-pc_GM406889139.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/blox-supply-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/how-to-get-free-spins-on-coin-master-ios_GM406889139.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/roblox-free-accessories_GM431946152.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/how-to-hack-golden-card-in-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/how-to-get-coin-master-free-spins-in-email_GM406889139.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/mcpe-client_GM479516143.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/free-minecraft-mods-for-ps4_GM479516143.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/how-to-get-free-mods-in-minecraft_GM479516143.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/how-do-we-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/roblox-cheat_GM431946152.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/minecraft-hack-client-18-9_GM479516143.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/block-best-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/minecraft-free-apk-download-016-0_GM479516143.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/free-robux-that-actually-works_GM431946152.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-hack_GM406889139.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/send-me-500-2021-spins_GM406889139.pdfIn PDF document text
    • https://elearning.mansamura.sch.id/__statics/gudangsoal/files/new-free-money-links-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_off000048ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48EA 24304 bytes
SHA-256: 0582916f1c7d2843fea5a890e46a2e8d2113733c21e7d602c53e5d523140ad81
font_01_sfnt_off00008039.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8039 17888 bytes
SHA-256: 63a6a5d9916b9ee5af7207625cec6907b74dd50493b17e0c9eae8777c3cfd91e

Open this report in the interactive analyzer, or submit your own file for analysis.