Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7aa5261f1da9a3…

MALICIOUS

PDF

52.3 KB Created: 2020-10-17 02:18:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-18
MD5: d4b2ea65d6f6f7b9aa88798fc0291d32 SHA-1: 7e3f75b7d8edbb67e8eac7935a88beec087d0c36 SHA-256: cd7aa5261f1da9a394c084e4851df44055a0a7b03f60c2c95ac4710c6486839b
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://ttraff.cc/123?keyword=paradise+island+mod+apk+4.0.8 In PDF document text
    • https://natizupasa.weebly.com/uploads/1/3/1/4/131437725/gajusesudaxibew.pdfIn PDF document text
    • https://bilewobadazape.weebly.com/uploads/1/3/2/6/132695578/83686.pdfIn PDF document text
    • https://jeponiruwapin.weebly.com/uploads/1/3/0/7/130776483/zebetuwi.pdfIn PDF document text
    • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/sijuwoxujupid.pdfIn PDF document text
    • https://gikoberi.weebly.com/uploads/1/3/0/9/130969260/dd85eafa1ce59.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0496/0410/0259/files/fuvikat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/3991/4646/files/free_bitcoin_sites_legit_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/9733/6224/files/dusk_of_dawn_movie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/9260/9686/files/girem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/0990/0183/files/john_hanson_montessori_school_lottery.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fd6f13f8-bab9-4b90-aa6a-de6b418b32d3/83096407297.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4e738ea2-7cf8-42f2-9071-764fe1b37966/lorekelakev.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/357fd8a0-bb95-4ae0-8b52-5d56163afb1b/bezugaxajaka.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e8e8bf8c-98d7-48c5-85a9-7896cca05ecb/87417160107.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2866/7798/files/wallace_school_district_jobs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1791/0947/files/apk_play_store_android_5.1.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/99d84731-5dbe-4d92-bed1-245b90cb251d/sijonitisato.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d749dd39-f3df-40f8-bebe-1326a675d197/40123861266.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/32f6328e-46d8-418a-a0d4-d79a6a4fbbc0/11948507592.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006b0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B0D 5332 bytes
SHA-256: 1ac6901ab8de1e054ead06b96107951a1fcccf01f9ce9309c166a794e961db82
font_01_sfnt_off00007d06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D06 10388 bytes
SHA-256: 8cb084ea3d0ab2b577786f128a909826c0bb5293027146c3806d2d16ac6a69fc
font_02_sfnt_off0000a0a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA0A6 16144 bytes
SHA-256: f0a8b786da721c7415a59d91fbce3b20bbb98ea32e48857ac1ff22d53b00ec29
font_03_sfnt_off0000b5aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB5AA 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3