Malicious PDF — malware analysis report

Static analysis result for SHA-256 67a1e045fb9b201b…

MALICIOUS

PDF

38.9 KB Created: 2020-08-15 02:49:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a9edf47782a6662e8adf0a7f9631bc2b SHA-1: 346edad52fee9e0a144097ab3c898a54774ad39b SHA-256: 67a1e045fb9b201bbcbf54047989fe53fc2353b8d77351063d14ae9698ac71f5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous links, many of which point to a redirector service known for malicious activity. The document body, though partially corrupted, includes the same redirector URL and a benign-looking Shopify URL, suggesting a lure for users to download content. The presence of a malicious redirector and a high ML classifier score indicate a high likelihood of malicious intent, 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.ru/pify?keyword=lullaby+of+birdland+alto+sax+sheet+music In PDF document text
    • http://xivozeka.247racefuels.com/uploads/1/3/2/7/132712615/zukanapunizakezun.pdfIn PDF document text
    • http://files.artivism2019.com/uploads/1/3/1/8/131872238/sasibivos-zosuxuposepo.pdfIn PDF document text
    • http://files.oxfordstation.pl/uploads/1/3/1/8/131856333/nawidesozugojozasod.pdfIn PDF document text
    • http://petitaz.khsphotographers.com/uploads/1/3/1/1/131164250/zekelixo.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/1/0431/1816/6167/files/buxaleko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/52209678420.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5021/2264/files/collins_regional_anesthesia_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9735/7472/files/verizon_dbir_2017.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2710/2876/files/balevexiluvufefede.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6874/4087/files/repusipajulupiwumeraxez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2100/1119/files/kijasitoxuzowuxumutavofug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3396/8287/files/skf_ball_bearing_catalog_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1187/4716/files/jomuzebizutosunimavi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3138/6517/files/2002_mitsubishi_eclipse_owners_manual.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 7

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_off000057e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57E3 5512 bytes
SHA-256: bb7f71afc2274fcccbe11bda81d49ecabb9cda934704481efd0d8b169d85c736
font_01_sfnt_off00006a7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A7F 10652 bytes
SHA-256: 9ba820a3f182476fdaf14f68abab1831d5e20d1893d235d6004b633c5b133f38

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