Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f3f7371a39f49d7…

MALICIOUS

PDF

51.4 KB Created: 2020-08-25 16:12:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5fda681d365b5fc1b9e6d4ce600a7887 SHA-1: 644ccf8b9ace0832e6eb67bd00db1706893fb455 SHA-256: 6f3f7371a39f49d7e79b35e3085b628ab10db9512a1bc9af9665526947696a8c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains numerous links, many of which point to a redirector service known for malicious activity. The document body, though partially obfuscated, includes a URL that appears to be a lure for a phishing or scam attempt. The ML classifier strongly indicated maliciousness, and the presence of a redirector link confirms a malicious intent to direct users to harmful 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.com/pify?keyword=ghana+millennium+development+goals+report+2015 In PDF document text
    • http://files.pearldeangarden.com/uploads/1/3/1/8/131857421/gorow.pdfIn PDF document text
    • http://newara.rhinopartyrentals.com/uploads/1/3/1/8/131871622/vewufofawemiro_nezusa_nozijidokelan_nitofetogi.pdfIn PDF document text
    • http://files.weldcountymeatgoats.com/uploads/1/3/2/6/132681576/sirafakigexisav.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/1/0437/6988/8920/files/acupressure_potent_points.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7382/2115/files/95747519868.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3723/6119/files/fasting_bible_study.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6365/6099/files/72119905282.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3577/0535/files/bifijulozul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1140/0102/files/pueblo_de_puerto_rico_orden_alfabetico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1576/4128/files/zalorop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3728/5797/files/bollywood_actress_images.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/1285/0581/files/foliage_report_2018_new_york.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6687/4266/files/tazurebive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/3337/0264/files/durable_medical_power_of_attorney_form_illinois.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/2514/6527/files/cancer_biology_book.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 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007b30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B30 5796 bytes
SHA-256: 26c2a0fca69b355fb4455af8203cd6b49e01fe40d9ae00e963893baa25226d36
font_01_sfnt_off00008ec2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EC2 10388 bytes
SHA-256: 35e3cba4e239fd43022bc1ec22d0d3655ed25b2100cced1c30159fb47888fe9e
font_02_sfnt_off0000b262.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB262 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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