Malicious PDF — malware analysis report

Static analysis result for SHA-256 7deb9d41e50b19a9…

MALICIOUS

PDF

47.2 KB Created: 2021-06-03 13:06:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: dbf3de8edefed6f4416e9b6dce1e9ed4 SHA-1: 1ddfe0e12aa99cee52755451235d037b3f97367a SHA-256: 7deb9d41e50b19a943470511be4d6afb611efaa3f1df46b65dc79a6d4b8f02a4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple links pointing to a redirector URL that is associated with malicious activity, specifically a 'game hack' lure. The document body, though heavily obfuscated, contains text related to 'Coin Master' and 'free spins', reinforcing the lure. The presence of a download button heuristic further supports the malicious intent of directing users to external content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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.online/app/406889139/100-free-spins-for-coin-master-2021-game-hack In PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/i-need-more-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-stop-attack-hack_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-hack-trick-2021_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-free-spins-twitter_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-fan-page-facebook_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-robux-obby_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/how-to-get-free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-spin-coin-master-hacktoman_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/how-to-win-free-robux_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/how-to-get-free-skins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-mast-hacks_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/roblox-free-body_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-roblox-toy-codes_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-free-spins-daily-1-ga_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/plug-toolbox-for-minecraft-free-ios_GM479516143.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
stream_004_off000052c7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x52C7 30376 bytes
SHA-256: 23c110ddcdc6b38bead4dc393d8bd7fc3c72a601da47bc17724082f5065aa496
font_01_sfnt_off00009602.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9602 18288 bytes
SHA-256: 7a7785de19adfa5a65cd79b10bfe31691e1cdc7f9f712964e30bbfe58da4eef2

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