Malicious PDF — malware analysis report

Static analysis result for SHA-256 714008a95908729a…

MALICIOUS

PDF

41.7 KB Created: 2020-08-09 11:14:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6f563fde283544487046daa326519917 SHA-1: 467dfa906baf8009b32ec73836cc0b7bde05b8e2 SHA-256: 714008a95908729a8b6e8d28bffe36e1402377d59f4a99fa4bfb264e8e4c893a
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a primary redirector URL identified as malicious. The document body, though partially corrupted, suggests a lure related to an 'attendance record sheet'. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm designed to obscure the ultimate destination, which is likely malicious. The ML classifier strongly supports the malicious verdict.

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=attendance+record+sheet+pdf In PDF document text
    • http://files.quaintrellemag.com/uploads/1/3/1/4/131483201/8288320.pdfIn PDF document text
    • http://files.taylormadebling.com/uploads/1/3/0/7/130739069/270d2.pdfIn PDF document text
    • http://files.sapphiremj.com/uploads/1/3/0/7/130776413/8835389.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/1/0435/4765/6351/files/xikupuvokidakolaniwapuba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8695/4140/files/jimuxugosavitofewa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1862/3896/files/17544327794.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7400/9753/files/51468598251.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72163988246.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3864/5144/files/rupuxuwubanigefajej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8292/2646/files/indiana_bmv_police_inspection_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8286/6072/files/sojal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8499/7017/files/dibemonu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8456/2084/files/52293881980.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7079/9510/files/fitudavekuxutalaxave.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
🗂 Part of campaign: sapphiremj.com 4 samples

Related samples 8

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_off00006674.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6674 5200 bytes
SHA-256: 4d42073ce1e312762438be4c755d16fc236353e4cdbc39b0c47ef20fc7f68839
font_01_sfnt_off00007820.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7820 9972 bytes
SHA-256: 2e1220eec66b9344b35a162f8534623e8517787b492432bf16eb767f1af24a11

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