Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfeade0f1c9ceeee…

MALICIOUS

PDF

44.5 KB Created: 2020-08-22 15:25:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 85358776abc9bd1c100124ff13c77ff3 SHA-1: ce233d8d379dd972be467a893f6bfc90fbb733af SHA-256: bfeade0f1c9ceeee92a5dce65cbd07bee6780cd8b2b27486583ebe1341f857cd
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, with one identified as a malicious redirector. The heuristic firings indicate that this PDF is part of a link farm, likely intended for SEO manipulation or to distribute malicious content. The primary malicious IOC is the redirector URL, which suggests a phishing or malware distribution attempt.

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=proform+cardio+hiit+programs In PDF document text
    • http://files.manekrush.org/uploads/1/3/2/6/132682070/1823248.pdfIn PDF document text
    • http://files.brissaeden.com/uploads/1/3/0/7/130739376/4209e3.pdfIn PDF document text
    • http://files.dreamlandinteriors.com/uploads/1/3/1/4/131438093/gimuneri.pdfIn PDF document text
    • http://files.wilbrahamprimary.com/uploads/1/3/0/9/130969768/pesizu.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/1/0430/7678/0192/files/achilles_tendon_stretching_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8014/6343/files/gb_whatsapp_gold_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8328/2070/files/artifacts_in_mri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3303/2864/files/all_notsobot_commands.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/2178/2427/files/edge_of_the_empire_character_generator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4557/6088/files/39747790229.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3057/6295/files/16582425292.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8523/4338/files/tuzikidukirejora.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9374/5046/files/self_propelled_lawn_mower_walmart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9614/6073/files/buguketokidozedenotu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9461/3924/files/95034978423.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4310/1591/files/download_utorrent_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4244/7265/files/mafosepipiwapogafasofo.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_off00006356.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6356 5104 bytes
SHA-256: ff8040d80f7a252658d923c7aa5f6acb49ed063e1209685e213b4144187d3c54
font_01_sfnt_off000074a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74A7 10016 bytes
SHA-256: c7d5ea0b99fe1b2e217b9029a30a1ec186272ec24479fa116a34249f13ccee66
font_02_sfnt_off000096e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96E8 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3