Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c462a709407029d…

MALICIOUS

PDF

39.2 KB Created: 2021-05-20 18:09:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f9dd31b95da22acd1a9bb88245c95cd0 SHA-1: dede1ee0a62a320d8a1531b1133e85ac7186fb2e SHA-256: 5c462a709407029de8df47b5efa88cbe665ab51c8cd83cec64566e6e53228f9a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to known malicious infrastructure, specifically a 'game hack' lure. The ML classifier also flagged the document as malicious. While no scripts were directly extracted, the PDF structure and embedded links strongly suggest a phishing or redirection attempt to a malicious site, likely to deliver a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

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/479516143/hacker-minecraft-song-game-hack In PDF document text
    • https://densel.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-free-gold-cards_GM406889139.pdfIn PDF document text
    • https://densel.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-roblox-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • https://densel.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-robux-generator-2021-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://densel.denpasarkota.go.id/new/public/ckfinder/userfiles/files/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://densel.denpasarkota.go.id/new/public/ckfinder/userfiles/files/hack-version-of-coin-master-apk-download_GM406889139.pdfIn PDF document text
    • https://sigmaclient.info#2In PDF document text
    • https://flux.today#3In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000036ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36EA 24272 bytes
SHA-256: c512699d871432aa618e934929c9b109faf310a11b1dcd1e8e0ac32f680596f7
font_01_sfnt_off00006e3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E3E 2868 bytes
SHA-256: 33be1d7a34526c18830c07eeb4b486247ca7c5b965a7246f70bf8ee445b73dab
font_02_sfnt_off00007827.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7827 18168 bytes
SHA-256: 37e3c409e679a213a10e0592b8ff177cf348fa9834d19b03b17241e7ed0c948b

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