Malicious PDF — malware analysis report

Static analysis result for SHA-256 947b81049d90be6e…

MALICIOUS

PDF

37.0 KB Created: 2020-08-23 02:01:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c696f3b4ccfaf6250744cb54621977c3 SHA-1: 0f4075e941dd3c4f9b46a9d47dc1287abc678630 SHA-256: 947b81049d90be6edf74bcf5a53de99e90493aea3407ca5432d24d6385b5d2a0
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. The ML classifier also flagged this PDF with high confidence. The document body text and embedded links suggest a lure to download software, which redirects to a malicious URL. The presence of a large number of embedded links, many pointing to Shopify, indicates a link farm used for SEO poisoning or distributing malicious content.

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.ru/pify?keyword=messenger+for+desktop+2.+0.+9+free In PDF document text
    • http://files.cribhawaii.com/uploads/1/3/0/7/130739251/1559381.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/1/0434/6563/8050/files/nedukitevisezejuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6678/4934/files/89355163628.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30151397197.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1362/5240/files/xalokumotuso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7573/9560/files/malacetic_aural_data_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1369/1799/files/circle_of_fifths_guitar_fretboard.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6238/6079/files/vetiwobijizibovinisu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0491/1006/files/ye_baburao_ka_style_hai_video.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2639/0946/files/talodetaxunegekefijipi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6014/9910/files/fubagexefofabekewe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2168/0283/files/pixajelaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6436/1113/files/15868254037.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
🗂 Part of campaign: ontargetmolecules.com 6 samples

Related samples 1

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_off0000519d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x519D 5496 bytes
SHA-256: 9a9ce47760eba63ecb8b08e37d137608c85e82d8ca7ee5cecc5f1fa7e15d1e35
font_01_sfnt_off00006477.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6477 10120 bytes
SHA-256: 86710de26543abea1325ff05289a28620dde0bed9398e6560fd389398ee60d12

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