Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b27bed856555f58…

MALICIOUS

PDF

42.0 KB Created: 2021-05-13 05:25:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4eb77b1228135261671d44823f7f6164 SHA-1: 809a98c18ee374ddcbadc88064484888cbb4e5cf SHA-256: 2b27bed856555f58d8829e46bebc8961791572403f1d3512faf2f1ad7005b024
160 Risk Score

Malware Insights

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

The PDF document contains multiple links to known malicious redirector infrastructure, specifically promoting "free generator / game hack" lures. The ML classifier strongly flagged this PDF as malicious. The document body and embedded URLs suggest a social engineering attempt to trick users into visiting potentially harmful sites, likely for financial gain or further malware delivery.

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-unlimited-spins-hack-game-hack In PDF document text
    • https://www.shopinkart.co.in/uploaded_files/userfiles/files/roblox-exploit-scripts_GM431946152.pdfIn PDF document text
    • https://www.shopinkart.co.in/uploaded_files/userfiles/files/robux-robux_GM431946152.pdfIn PDF document text
    • https://www.shopinkart.co.in/uploaded_files/userfiles/files/robux-com-free_GM431946152.pdfIn PDF document text
    • https://www.shopinkart.co.in/uploaded_files/userfiles/files/coin-master-spins-gratis_GM406889139.pdfIn PDF document text
    • https://www.shopinkart.co.in/uploaded_files/userfiles/files/minecraft-free-apk-download-016-0_GM479516143.pdfIn PDF document text
    • https://www.shopinkart.co.in/uploaded_files/userfiles/files/free-online-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.shopinkart.co.in/uploaded_files/userfiles/files/roblox-promo-codes-free-robux_GM431946152.pdfIn PDF document text
    • https://www.shopinkart.co.in/uploaded_files/userfiles/files/spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.shopinkart.co.in/uploaded_files/userfiles/files/i-want-free-robux_GM431946152.pdfIn PDF document text
    • https://www.shopinkart.co.in/uploaded_files/userfiles/files/free-coin-master-app_GM406889139.pdfIn PDF document text
    • https://www.shopinkart.co.in/uploaded_files/userfiles/files/como-hackear-coin-master_GM406889139.pdfIn PDF document text
    • https://www.shopinkart.co.in/uploaded_files/userfiles/files/coin-master-heaven-daily-free-spins_GM406889139.pdfIn PDF document text
    • https://www.shopinkart.co.in/uploaded_files/userfiles/files/robux-earning-sites_GM431946152.pdfIn PDF document text
    • https://www.shopinkart.co.in/uploaded_files/userfiles/files/coin-master-daily-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • https://www.shopinkart.co.in/uploaded_files/userfiles/files/apps-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://www.shopinkart.co.in/uploaded_files/userfiles/files/coin-master-free-spins-and-coins-hack_GM406889139.pdfIn PDF document text
    • https://www.shopinkart.co.in/uploaded_files/userfiles/files/coin-master-free-download-for-pc_GM406889139.pdfIn PDF document text
    • https://www.shopinkart.co.in/uploaded_files/userfiles/files/can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.shopinkart.co.in/uploaded_files/userfiles/files/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • https://www.shopinkart.co.in/uploaded_files/userfiles/files/hack-coin-master-using-cheat-engine_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
stream_003_off000048e9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48E9 24640 bytes
SHA-256: 30585209d63a5562c2792dc5a1857b2f1bc9bfff5c8294b67cf16111e2206a50
font_01_sfnt_off000080b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80B4 18584 bytes
SHA-256: bff27dcdedd5af8a0d687a24d9b2ce7acea36a5c8901c6afee4cb29d8b6ebd85