Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb11dcda8e829087…

MALICIOUS

PDF

42.1 KB Created: 2021-05-13 11:51:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: edd9516660959d265c69e3eb025701fc SHA-1: 95b02b8e247792138d6c98010deedd248d38e003 SHA-256: fb11dcda8e8290877af21716cb02e84c62de29c2f0c73c0dd3141b2787f21ccb
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to malicious infrastructure, specifically promoting 'free generator / game hack' lures. The document body, though partially corrupted, contains a URL matching the malicious redirector. This suggests the document is designed to trick users into visiting malicious sites, likely to download further malware or engage in phishing.

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/479516143/how-do-i-get-minecraft-for-free-game-hack In PDF document text
    • https://www.dmgroupksa.com/uploaded_files/userfiles/files/free-minecraft-packs_GM479516143.pdfIn PDF document text
    • https://www.dmgroupksa.com/uploaded_files/userfiles/files/free-minecraft-generator_GM479516143.pdfIn PDF document text
    • https://www.dmgroupksa.com/uploaded_files/userfiles/files/free-robux-no-apps_GM431946152.pdfIn PDF document text
    • https://www.dmgroupksa.com/uploaded_files/userfiles/files/facebook-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://www.dmgroupksa.com/uploaded_files/userfiles/files/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://www.dmgroupksa.com/uploaded_files/userfiles/files/get-free-roblox_GM431946152.pdfIn PDF document text
    • https://www.dmgroupksa.com/uploaded_files/userfiles/files/minecraft-bedrock-free-download-pc_GM479516143.pdfIn PDF document text
    • https://www.dmgroupksa.com/uploaded_files/userfiles/files/coin-master-free-spins-and-coins-link-today_GM406889139.pdfIn PDF document text
    • https://www.dmgroupksa.com/uploaded_files/userfiles/files/hacked-client-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • https://www.dmgroupksa.com/uploaded_files/userfiles/files/toolbox-mod_GM479516143.pdfIn PDF document text
    • https://www.dmgroupksa.com/uploaded_files/userfiles/files/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • https://www.dmgroupksa.com/uploaded_files/userfiles/files/coin-master-free-spin-and-trading_GM406889139.pdfIn PDF document text
    • https://www.dmgroupksa.com/uploaded_files/userfiles/files/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.dmgroupksa.com/uploaded_files/userfiles/files/free-vip-roblox_GM431946152.pdfIn PDF document text
    • https://www.dmgroupksa.com/uploaded_files/userfiles/files/coin-master-cards-for-free_GM406889139.pdfIn PDF document text
    • https://www.dmgroupksa.com/uploaded_files/userfiles/files/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://www.dmgroupksa.com/uploaded_files/userfiles/files/get-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://www.dmgroupksa.com/uploaded_files/userfiles/files/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
    • https://www.dmgroupksa.com/uploaded_files/userfiles/files/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
    • https://www.dmgroupksa.com/uploaded_files/userfiles/files/wurst-client_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_003_off00004b1a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B1A 24524 bytes
SHA-256: 527879e9bfc1014f3428cfb41019e3e76ed6becbe1b0e830103e0497c2f1b393
font_01_sfnt_off00008303.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8303 18044 bytes
SHA-256: 8adf8c493cf7b961d8151eaa7b2e31490a9d93b7fc863b831128d5e31b20427f

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