Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6d9a962eaff9f5f…

MALICIOUS

PDF

34.9 KB Created: 2021-06-23 02:28:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e273ad4f8dc5b4382701bc45deb3a273 SHA-1: ae0e6cdfabbf76fd92df3b7aac531dc12144343e SHA-256: a6d9a962eaff9f5fc56d29acdaa52e2ad3771c3372aeba82f3bbb7c3f68eca7d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting game hacks and free currency for games like Roblox and Coin Master. The primary lure appears to be a 'Roblox Conquerors Hack' leading to a redirector at http://netcdn.co/app/431946152/roblox-conquerors-hack-game-hack. The document body and embedded URLs strongly suggest a phishing or scam attempt to lure users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/roblox-conquerors-hack-game-hack In PDF document text
    • http://www.r2rfurniture.com/uploaded_files/userfiles/files/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://www.r2rfurniture.com/uploaded_files/userfiles/files/get-free-robux-now_GM431946152.pdfIn PDF document text
    • http://www.r2rfurniture.com/uploaded_files/userfiles/files/25-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.r2rfurniture.com/uploaded_files/userfiles/files/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
    • http://www.r2rfurniture.com/uploaded_files/userfiles/files/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • http://www.r2rfurniture.com/uploaded_files/userfiles/files/coin-master-332-apk-free-download_GM406889139.pdfIn PDF document text
    • http://www.r2rfurniture.com/uploaded_files/userfiles/files/claim-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://www.r2rfurniture.com/uploaded_files/userfiles/files/roblox-free-no-download_GM431946152.pdfIn PDF document text
    • http://www.r2rfurniture.com/uploaded_files/userfiles/files/robux-games_GM431946152.pdfIn PDF document text
    • http://www.r2rfurniture.com/uploaded_files/userfiles/files/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://www.r2rfurniture.com/uploaded_files/userfiles/files/cool-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://www.r2rfurniture.com/uploaded_files/userfiles/files/free-robux-apk_GM431946152.pdfIn PDF document text
    • http://www.r2rfurniture.com/uploaded_files/userfiles/files/free-100-robux_GM431946152.pdfIn PDF document text
    • http://www.r2rfurniture.com/uploaded_files/userfiles/files/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://www.r2rfurniture.com/uploaded_files/userfiles/files/roblox-hack-roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://www.r2rfurniture.com/uploaded_files/userfiles/files/coin-master-hack-no-verification-no-signup_GM406889139.pdfIn PDF document text
    • http://www.r2rfurniture.com/uploaded_files/userfiles/files/how-to-hack-on-roblox-mad-games_GM431946152.pdfIn PDF document text
    • http://www.r2rfurniture.com/uploaded_files/userfiles/files/coins-master_GM406889139.pdfIn PDF document text
    • http://www.r2rfurniture.com/uploaded_files/userfiles/files/get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://www.r2rfurniture.com/uploaded_files/userfiles/files/best-free-spins-for-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_off00003259.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3259 22044 bytes
SHA-256: d01287dd5ee0bd6261ac7218e2a8cec040b3fc78f316ff48f35e34f0ef652082
font_01_sfnt_off0000636b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x636B 18968 bytes
SHA-256: dca4d21a593b0067cd55759210a5aea18ed40bbf57f9323e1c652712d87b80e2

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