Malicious PDF — malware analysis report

Static analysis result for SHA-256 e03de25d96906642…

MALICIOUS

PDF

43.5 KB Created: 2021-06-03 05:00:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: adef4f9f1897fe92b17f54ea294b6833 SHA-1: 587198c6938e95fa69c259f0c306354995e2ea4a SHA-256: e03de25d96906642a432185f9f71e9d1349af186c205b1f9f442c0df0f4d6071
220 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links designed to lure users into clicking on them, promising free game items. The primary link redirects to known malicious infrastructure, and many other links point to SEO link farms, suggesting a campaign to drive traffic to potentially harmful sites. No scripts were extracted, but the document's structure and embedded URLs strongly indicate a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.online/app/479516143/free-minecraft-generator-game-hack In PDF document text
    • https://www.maverickengineers.com/uploaded_files/userfiles/files/how-to-get-minecraft-bedrock-edition-for-free_GM479516143.pdfIn PDF document text
    • https://www.maverickengineers.com/uploaded_files/userfiles/files/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • https://www.maverickengineers.com/uploaded_files/userfiles/files/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.maverickengineers.com/uploaded_files/userfiles/files/www-roblox-com-robux_GM431946152.pdfIn PDF document text
    • https://www.maverickengineers.com/uploaded_files/userfiles/files/how-to-make-a-minecraft-java-server-for-free_GM479516143.pdfIn PDF document text
    • https://www.maverickengineers.com/uploaded_files/userfiles/files/coin-master-free-spins-1-coin-master_GM406889139.pdfIn PDF document text
    • https://www.maverickengineers.com/uploaded_files/userfiles/files/minecraft-wurst-hacked-client_GM479516143.pdfIn PDF document text
    • https://www.maverickengineers.com/uploaded_files/userfiles/files/coin-master-hack-quora_GM406889139.pdfIn PDF document text
    • https://www.maverickengineers.com/uploaded_files/userfiles/files/is-tiktok-free-on-voxi_GM835599320.pdfIn PDF document text
    • https://www.maverickengineers.com/uploaded_files/userfiles/files/free-minecraft-skin-packs_GM479516143.pdfIn PDF document text
    • https://www.maverickengineers.com/uploaded_files/userfiles/files/how-to-get-free-minecraft-alts_GM479516143.pdfIn PDF document text
    • https://www.maverickengineers.com/uploaded_files/userfiles/files/coin-master-blogspot_GM406889139.pdfIn PDF document text
    • https://www.maverickengineers.com/uploaded_files/userfiles/files/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • https://www.maverickengineers.com/uploaded_files/userfiles/files/hack-roblox-players_GM431946152.pdfIn PDF document text
    • https://www.maverickengineers.com/uploaded_files/userfiles/files/daily-spin-coin-master-free_GM406889139.pdfIn PDF document text
    • https://www.maverickengineers.com/uploaded_files/userfiles/files/how-to-get-free-pet-food-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.maverickengineers.com/uploaded_files/userfiles/files/free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • https://www.maverickengineers.com/uploaded_files/userfiles/files/free-minecraft-realm-codes_GM479516143.pdfIn PDF document text
    • https://www.maverickengineers.com/uploaded_files/userfiles/files/free-online-generator-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.maverickengineers.com/uploaded_files/userfiles/files/como-hackear-el-juego-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
stream_004_off00004e9e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E9E 25076 bytes
SHA-256: a39df7f56a60265e567d52436f4191da53fdf927d647d774141760c0ea022a5d
font_01_sfnt_off00008915.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8915 17712 bytes
SHA-256: 2ba423467bb34654934421079a82fe93ae3f0cf8ad50d4b3792d5c3eca35bf12