Malicious PDF — malware analysis report

Static analysis result for SHA-256 84f4af0ac71c23f0…

MALICIOUS

PDF

43.5 KB Created: 2021-05-11 04:48:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-11
MD5: f7f25ae5900bcf38b5c979841dd3e575 SHA-1: c1c09c06eff592c9385aeade88a1cb1a408ed0f0 SHA-256: 84f4af0ac71c23f0f3d57c0e91fef0c6b4a48dad41369919210165779c117f7c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, masquerading as 'game hacks' or 'free generators'. The primary lure is a link to 'minecraft-hack-ios-game-hack', which is part of a chain of redirects to potentially malicious sites. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a social engineering attack aimed at driving traffic to malicious infrastructure, likely for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/minecraft-hack-ios-game-hack In PDF document text
    • https://kab-gianyar.kpu.go.id/new/public/ckfinder/userfiles/files/can-i-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://kab-gianyar.kpu.go.id/new/public/ckfinder/userfiles/files/minecraft-client-download_GM479516143.pdfIn PDF document text
    • https://kab-gianyar.kpu.go.id/new/public/ckfinder/userfiles/files/minecraft-diamond-finder-hack_GM479516143.pdfIn PDF document text
    • https://kab-gianyar.kpu.go.id/new/public/ckfinder/userfiles/files/free-robux-website_GM431946152.pdfIn PDF document text
    • https://kab-gianyar.kpu.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • https://kab-gianyar.kpu.go.id/new/public/ckfinder/userfiles/files/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • https://kab-gianyar.kpu.go.id/new/public/ckfinder/userfiles/files/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
    • https://kab-gianyar.kpu.go.id/new/public/ckfinder/userfiles/files/coin-master-online-free-spin_GM406889139.pdfIn PDF document text
    • https://kab-gianyar.kpu.go.id/new/public/ckfinder/userfiles/files/minecraft-bedrock-edition-free-with-java_GM479516143.pdfIn PDF document text
    • https://kab-gianyar.kpu.go.id/new/public/ckfinder/userfiles/files/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • https://kab-gianyar.kpu.go.id/new/public/ckfinder/userfiles/files/links-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://kab-gianyar.kpu.go.id/new/public/ckfinder/userfiles/files/free-online-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://kab-gianyar.kpu.go.id/new/public/ckfinder/userfiles/files/robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://kab-gianyar.kpu.go.id/new/public/ckfinder/userfiles/files/coin-master-free-400-spin-link_GM406889139.pdfIn PDF document text
    • https://kab-gianyar.kpu.go.id/new/public/ckfinder/userfiles/files/robux-games_GM431946152.pdfIn PDF document text
    • https://kab-gianyar.kpu.go.id/new/public/ckfinder/userfiles/files/free-robux-generator-codes_GM431946152.pdfIn PDF document text
    • https://kab-gianyar.kpu.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-link-2021-hack_GM406889139.pdfIn PDF document text
    • https://kab-gianyar.kpu.go.id/new/public/ckfinder/userfiles/files/free-minecraft-skins-pe_GM479516143.pdfIn PDF document text
    • https://kab-gianyar.kpu.go.id/new/public/ckfinder/userfiles/files/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://kab-gianyar.kpu.go.id/new/public/ckfinder/userfiles/files/free-robux-generator-no-human-verification_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
stream_003_off00004fd6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4FD6 25332 bytes
SHA-256: 8c8cb0d6bc27b7313ed9c78cb6c6146dc93b566d495e93af260e45e64d14c606
font_01_sfnt_off0000893a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x893A 17880 bytes
SHA-256: 4f62ffa84bec6987c7bb4a965c21c3f9081c6d15a1e2ce4cbfb05006ff20176d

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