Malicious PDF — malware analysis report

Static analysis result for SHA-256 f46dce58b586386d…

MALICIOUS

PDF

35.8 KB Created: 2021-07-04 15:09:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 97279788f19b3767f592221445b41397 SHA-1: 540512d6e6a4dec3d06a98f6626bb311b53e1d7c SHA-256: f46dce58b586386d1d32a6cbf69e43091ccaa7a0d5061a2760e3d38009abca84
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links, including one to a known malicious redirector, designed to lure users with promises of free Robux and game hacks. The document body and embedded URLs strongly suggest a phishing or scam attempt to drive traffic to potentially harmful sites. No scripts were extracted, but the presence of embedded URLs and the lure content indicate a malicious intent to redirect users to external resources.

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.tw/app/431946152/free-robux-without-human-verification-game-hack In PDF document text
    • https://mitsubishijogjaku.com/ckfinder/userfiles/files/roblox-why-is-nothing-free_GM431946152.pdfIn PDF document text
    • https://mitsubishijogjaku.com/ckfinder/userfiles/files/websites-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://mitsubishijogjaku.com/ckfinder/userfiles/files/how-to-get-free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://mitsubishijogjaku.com/ckfinder/userfiles/files/roblox-hack-apk_GM431946152.pdfIn PDF document text
    • https://mitsubishijogjaku.com/ckfinder/userfiles/files/free-roblox-redeem-codes-for-robux_GM431946152.pdfIn PDF document text
    • https://mitsubishijogjaku.com/ckfinder/userfiles/files/ho-wot-not-get-kicked-for-hacking-in-roblox_GM431946152.pdfIn PDF document text
    • https://mitsubishijogjaku.com/ckfinder/userfiles/files/how-do-you-get-free-food-in-coin-master_GM406889139.pdfIn PDF document text
    • https://mitsubishijogjaku.com/ckfinder/userfiles/files/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • https://mitsubishijogjaku.com/ckfinder/userfiles/files/bloodfest-roblox-hack_GM431946152.pdfIn PDF document text
    • https://mitsubishijogjaku.com/ckfinder/userfiles/files/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • https://mitsubishijogjaku.com/ckfinder/userfiles/files/how-can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://mitsubishijogjaku.com/ckfinder/userfiles/files/free-tiktok-likes_GM835599320.pdfIn PDF document text
    • https://mitsubishijogjaku.com/ckfinder/userfiles/files/roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • https://mitsubishijogjaku.com/ckfinder/userfiles/files/how-to-create-a-website-like-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://mitsubishijogjaku.com/ckfinder/userfiles/files/free-bling-bling-card-coin-master_GM406889139.pdfIn PDF document text
    • https://mitsubishijogjaku.com/ckfinder/userfiles/files/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • https://mitsubishijogjaku.com/ckfinder/userfiles/files/cheats-for-coin-master_GM406889139.pdfIn PDF document text
    • https://mitsubishijogjaku.com/ckfinder/userfiles/files/download-coin-master-hack-tool-v1-9_GM406889139.pdfIn PDF document text
    • https://mitsubishijogjaku.com/ckfinder/userfiles/files/free-minecraft-skins-pe_GM479516143.pdfIn PDF document text
    • https://mitsubishijogjaku.com/ckfinder/userfiles/files/free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003246.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3246 22796 bytes
SHA-256: 67e11c2605b797516f34561720cc3de31e569a425af6ea9020119f7011abbcbb
font_01_sfnt_off0000651d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x651D 19700 bytes
SHA-256: 8b14ee22fcfa25f62777b70428c8c13e08516b960c8f7fddc92c23ad02cefb37

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