Malicious PDF — malware analysis report

Static analysis result for SHA-256 a886681bf3ff768f…

MALICIOUS

PDF

39.2 KB Created: 2020-10-27 16:09:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 9544b7e8c7038ae79b912657e2e1aaec SHA-1: cbc74013d61b88984cb37a5fd4928b67f8994ac4 SHA-256: a886681bf3ff768fea0f4a042e4e73229e5a2e8421c412440ad4a6a181dcdd17
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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.link/123?keyword=how+to+play+pokemon+diamond+on+chromebook In PDF document text
    • https://cdn-cms.f-static.net/uploads/4384295/normal_5f8cb7244bbcb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369505/normal_5f893383abcce.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369502/normal_5f8b77ac7c67b.pdfIn PDF document text
    • https://gimunoje.weebly.com/uploads/1/3/4/3/134344093/fegatafezev-mukupaloreso-tedemezawapij-nariku.pdfIn PDF document text
    • https://putigazabikikim.weebly.com/uploads/1/3/2/6/132682718/zerovawegoselededu.pdfIn PDF document text
    • https://pigogokeda.weebly.com/uploads/1/3/1/8/131857695/03b622.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413375/normal_5f94e5762e57f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366351/normal_5f87103be99fb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369501/normal_5f887ffbeda12.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000584e.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000584e.bin)
    • https://cdn.shopify.com/s/files/1/0486/0752/7077/files/lodobapesipesudedax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/1042/8575/files/wayne_newton_hit_songs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8467/6249/files/xokisegidefis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/8182/9025/files/guxaxabivakezazupabu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/3414/6464/files/sherlock_holmes_download_sinhala.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/8304/5293/files/24037161049.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/437291a1-c1c3-4028-b68d-9b04679459b6/25190138780.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f9a3c36d-5413-4dba-ba2e-8cd7fecac6f7/28428110275.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/20c00211-0e3f-4de2-9564-6dfcfebad103/setuvebosegiwudagi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2bd83187-9371-45f0-bf1a-cd538eaed908/15743475082.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ce75efd2-5f99-4af7-887f-ebba679cc74e/76024079238.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 extracted file (font_00_sfnt_off0000584e.bin)

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_off0000584e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x584E 5496 bytes
SHA-256: fc160af8d548dbd96e8f26cf3dd20ec60ec010315983c653373f7a2ca9cc862b
font_01_sfnt_off00006ada.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ADA 10796 bytes
SHA-256: 9d4aa69acb2cc008a489c5f103c4627f483800fc50e69aefba9f4877b1223bc1

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