Malicious PDF — malware analysis report

Static analysis result for SHA-256 36049d0f123b78df…

MALICIOUS

PDF

46.4 KB Created: 2020-08-05 14:50:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: c328a8761c2383b7bbd71069bfc3567f SHA-1: ba6a0aca52cff2b33c5eda3d38455e68cd61148f SHA-256: 36049d0f123b78df4afe5a7a2bbbef96c841f58a69af0c259e48555cdca004da
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.com/pify?keyword=domain+and+range+worksheet+pdf In PDF document text
    • http://files.alohaawamori.com/uploads/1/3/1/0/131070325/67a18c3a59059.pdfIn PDF document text
    • http://pufokavaj.crazycurrchic.com/uploads/1/3/1/8/131857631/naweduro_ralava_wagafojajezo_pagawoweki.pdfIn PDF document text
    • http://files.mattstevensultra.com/uploads/1/3/2/7/132710491/favut.pdfIn PDF document text
    • http://files.dakotasdogs.com/uploads/1/3/1/3/131379832/4953109.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/1/0427/5650/5756/files/favodisutu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5042/5750/files/96010457324.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8794/6143/files/sort_by_color_google_sheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1373/3533/files/masafokepasej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2060/6885/files/tevenesujefojozudile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5900/4070/files/kanoxajijasejed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3592/6434/files/gidobojabodelux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1167/0179/files/django_queryset_to_json.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8630/6710/files/jatenazuwidorezaja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7149/4554/files/xinipag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7709/8910/files/wipebazuvirejevexe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3314/1146/files/wududimu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4324/9563/files/wojiresokilafus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vinujavezo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000692e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x692E 5364 bytes
SHA-256: 42a96ec783a72ada0114d5f38524a7c30e57a683cd5db355fde06c0e9782d9de
font_01_sfnt_off00007b53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B53 10132 bytes
SHA-256: 2ebe4a8b658500af901cdb4bb0819b3ce700e7aff196e7bc87384287dbf50470
font_02_sfnt_off00009e0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E0A 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

Open this report in the interactive analyzer, or submit your own file for analysis.