Malicious PDF — malware analysis report

Static analysis result for SHA-256 eeabed2ee95b1bd0…

MALICIOUS

PDF

41.8 KB Created: 2021-05-11 07:03:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 9276bdb58cf99a7c5eddef28500654e2 SHA-1: 29ebfa6f71ecc5a75e1b1e127ce10a69a1e23781 SHA-256: eeabed2ee95b1bd0d08b06b178830dd6691cd8e6968b4bdb03886796e4490955
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs and a primary redirector URL, all related to game hacks and cheats, indicating a lure for users to click malicious links. The ML classifier and specific PDF heuristics confirm the malicious nature of these links, which likely lead to further malicious content or malware downloads. No scripts were extracted, but the document's structure and embedded URLs strongly suggest a phishing or redirection attack.

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/431946152/jailbreak-roblox-hack-game-hack In PDF document text
    • http://opac.stieimalang.ac.id/repository/coin-master-free-food-for-pet_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/roblox-hacked-version-download_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/free-coin-master-spin-app_GM406889139.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/coin-master-free-spins-23-march-2021_GM406889139.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/coin-master-spin-rewards_GM406889139.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/coin-master-free-spins-and-coins-today_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/google-moon-active_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/free-robux-gen_GM431946152.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/coin-master-fb-free-spins-link_GM406889139.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/is-minecraft-earth-free_GM479516143.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/free-avatar-roblox_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/master-coin-free-link_GM406889139.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/avatar-de-roblox_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/free-robux-promo-codes_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_off0000468c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x468C 25124 bytes
SHA-256: bc9649b5a4c06435b093590f6e9d15b5803c6e422d29abcb8e08cfaaff78a9d5
font_01_sfnt_off00008077.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8077 18468 bytes
SHA-256: 47180ef6fd58f08eabdcf8de8850cf434555edaa977bcc29afa6d0c928aef64e

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