Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d4507056502dad7…

MALICIOUS

PDF

67.7 KB Created: 2020-08-14 07:55:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 81a527efd873ef9f1781e75246fe7694 SHA-1: e3b44f0758d5b03a7e88dedac3e6201a30853815 SHA-256: 4d4507056502dad75612ccf2ed8fb95178eda683e834dc6dc98d064c8714650c
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=jurnal+endometritis+pdf'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, with the primary one being to a Shopify domain. The document body, though heavily obfuscated, contains the malicious URL and appears to be a lure related to 'jurnal endometritis pdf'. The file's purpose is to redirect users to malicious infrastructure.

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=jurnal+endometritis+pdf In PDF document text
    • http://files.realestatesolutions360.com/uploads/1/3/1/4/131483421/4293268.pdfIn PDF document text
    • http://lejufot.origin-of-religion.com/uploads/1/3/1/3/131379578/42365e1115.pdfIn PDF document text
    • http://zaritisug.ingerlene.net/uploads/1/3/0/7/130776031/kovazexate-rivif-pudapuveriki-rawujiraguxel.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/1/0430/0118/4417/files/sri_devi_bhagavatam_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1247/8360/files/segomi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3518/1734/files/16856701725.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2363/8426/files/16137311424.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zozaweguxilamefawe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5988/5733/files/binisojili.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3313/3209/files/asthma_action_plan_form_texas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5286/7494/files/botewuzelixuwisunodel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6454/0835/files/pieter_bruegel_l_ancien.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6162/2437/files/gojidivewomuvitijezutop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4178/3959/files/31749608276.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4440/5397/files/marketing_mix_meaning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/3651/7286/files/miresixolipevut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0239/5813/files/kezadutet.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 4

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_off0000ca6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA6D 5176 bytes
SHA-256: 134f12811cdd11bd624b64c67d0b8ebad8f6d147100c92e18236128a5c61e5ac
font_01_sfnt_off0000dbf1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBF1 10712 bytes
SHA-256: 17a6f7c5d1093160b8db1ea303e4a9ce7ab26d68e8eeef4de9f3b5b6052c8509

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