Malicious PDF — malware analysis report

Static analysis result for SHA-256 950ceef7e91b40a7…

MALICIOUS

PDF

66.4 KB Created: 2020-08-10 10:30:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 79b66e5592118144df422f38e7f8e04b SHA-1: 4ddee057a3a1f7fa12ede940bbbbc802f6e3ba44 SHA-256: 950ceef7e91b40a76204b591a7b20de1a8a669a1e43065f053bc2cbccfeaab60
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, many of which point to external PDF files hosted on various domains, including a link farm detected by heuristics. One of the primary links, 'https://ttraff.cc/pify?keyword=partitioned+matrix+pdf', is flagged as a malicious redirector. This suggests the document's purpose is to drive traffic to malicious infrastructure through a deceptive link farm, likely for phishing or malware distribution.

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.cc/pify?keyword=partitioned+matrix+pdf In PDF document text
    • http://files.wolfhunterjjc.com/uploads/1/3/1/1/131164097/rogojore_sabefizaxe_kuzix.pdfIn PDF document text
    • http://files.olivia-meraki.com/uploads/1/3/1/4/131408204/af17442d.pdfIn PDF document text
    • http://files.thepeterboroughparkwayclubs.co.uk/uploads/1/3/1/3/131384589/pibawifidesid_mukal_fasakopivoto.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/1/0435/6685/8408/files/27768072213.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37237973095.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8052/3678/files/soxajidigotugawiwafovusu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2439/2087/files/love_divine_all_loves_excelling_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4029/8392/files/biasing_of_pn_junction_diode.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0515/7284/files/taqueria_arandas_menu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5228/3542/files/73065647761.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5829/1093/files/kokipozaxilabimezopido.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3181/2504/files/38254620717.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2089/4886/files/tipujaworikugobimupuso.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

Related samples 6

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_off0000c8a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8A7 5044 bytes
SHA-256: 5aa51dc1e1c67bf15ce364e2bff7005b47be23b7e6031c2bf76b6e118a061fa3
font_01_sfnt_off0000d9c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9C1 10460 bytes
SHA-256: 988993942ba67a72519e00bcc12fb980fd60467a904a3b80379a8674bd842a65

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