Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d7c5159b8b4191b…

MALICIOUS

PDF

35.9 KB Created: 2020-08-20 01:15:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b01e35980c3e5f9b52f1910c623f43b9 SHA-1: 73830a5297c6c9cb179e47b8a251f0eb40f79479 SHA-256: 9d7c5159b8b4191be1ee99b31ebf4b88e04e23ace8ba6989c18577ab2f742365
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, with a critical heuristic firing indicating a malicious redirector link. The ML classifier also flagged this PDF with high confidence. The document body, though corrupted, contains the URL 'https://ttraff.cc/pify?keyword=briton+2003+door+closer+data+sheet', which is likely used to redirect the user to a malicious site. The presence of numerous other PDF links suggests a link farm or SEO poisoning technique to distribute the 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.cc/pify?keyword=briton+2003+door+closer+data+sheet In PDF document text
    • http://files.artisansatlarge.com/uploads/1/3/0/7/130775934/255a2.pdfIn PDF document text
    • http://files.williamsburg612.org/uploads/1/3/2/7/132712207/zevubisetobiv_razezodatodod.pdfIn PDF document text
    • http://files.mifflinjuniataartscouncil.org/uploads/1/3/1/3/131381363/sivevof.pdfIn PDF document text
    • http://lovib.galleherlumber.com/uploads/1/3/2/6/132682883/tavatozadujas.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/1/0439/3218/8840/files/castle_in_the_sky_piano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5214/6587/files/40152481244.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2749/5072/files/wugiwovir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7055/3238/files/dalaran_heist_guide_priest.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8946/1410/files/52367784020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6143/4773/files/deadpool_kills_the_marvel_universe_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8640/5029/files/antibioticos_y_su_clasificacion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5868/3294/files/63730847835.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3706/4348/files/25173953306.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9982/4032/files/classic_armchair_3d_model_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4464/0667/files/92195383886.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6634/3072/files/18029674446.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 2

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_off00004e4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E4C 5516 bytes
SHA-256: e00153125694f9cc3a1f010a5d823a6017ec2ec396d121523ed8cf5dc7a65812
font_01_sfnt_off000060ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60EE 9868 bytes
SHA-256: bef3316c5b85532d6af71bc2535956b215b7e4f0bfe6cabd49df65f8fa8a7cf3

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