Malicious PDF — malware analysis report

Static analysis result for SHA-256 00620dad8bcbbc41…

MALICIOUS

PDF

50.5 KB Created: 2020-10-23 09:13:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 0970cc72225826bfea8aef5475b73b14 SHA-1: 9708e53fb745d4cc575e9e3c558a5949cc38c96e SHA-256: 00620dad8bcbbc411b97e2f16652b03265e8d020f33cc08cec51b1a7750cb1fb
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.me/pify?keyword=australian+healthy+food+guide+november+2020 In PDF document text
    • https://cdn-cms.f-static.net/uploads/4385422/normal_5f8ee0df46d0e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365584/normal_5f86fe8792ea3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366665/normal_5f8a48887bf7e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382772/normal_5f8c1473aaa55.pdfIn PDF document text
    • https://ligexomapaku.weebly.com/uploads/1/3/4/3/134321337/weximevazejazo_womisudivokubix.pdfIn PDF document text
    • https://lodirunesu.weebly.com/uploads/1/3/0/8/130874391/sadobefivefoki_sipexanirox_kikapugujolox_luzazi.pdfIn PDF document text
    • https://tavumake.weebly.com/uploads/1/3/2/7/132740551/xexomemetewolo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403539/normal_5f91228ab26c7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384167/normal_5f8be34829185.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366639/normal_5f8b56a6e8d49.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382948/normal_5f8dd662dfaa5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379987/normal_5f8ffdd68ca9d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365626/normal_5f8718cfb6286.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384821/normal_5f90a27c6142f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369501/normal_5f8bbe062e27c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369498/normal_5f8a8fb750cb0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/3490/5240/files/tuvenobagala.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4548/5725/files/converter_curriculo_para_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0523/8692/files/toxajewidubitaxibesix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/9136/9377/files/puvetu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/3704/1331/files/62093356108.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/68a35f0e-b56f-4d11-ba31-49997e99dd7b/86592106464.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7925710d-a982-4504-8682-72f896998dda/10513834083.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2b86ad6b-f338-440f-9bfd-ddc70bd29af5/2060496791.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b4625115-e0d5-410b-ba3c-53867d6f8c1c/worodux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb135a73-be69-496b-8683-9250ec9ebc33/19640560216.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000084f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84F9 5888 bytes
SHA-256: e4417de5d039439c4650587bed424096de91b9ca87691b95715476dac8d4bb70
font_01_sfnt_off000098e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98E3 10348 bytes
SHA-256: e02e77711678a126c37d6dc9f8ea40edaaf34f047224016725ab601112c65e87