Malicious PDF — malware analysis report

Static analysis result for SHA-256 6498b91052b26bf2…

MALICIOUS

PDF

46.1 KB Created: 2020-08-20 23:53:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 247d2d81e4580dc6414cba70e450703e SHA-1: fb6b778f00096c1dd8cb2ff2402158e20bea85de SHA-256: 6498b91052b26bf2150348aa71e995e78fe3dac31a4d85a74becf93190107aa7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external resources, including a primary redirector URL identified as malicious. The document body, though obfuscated, also contains this URL, suggesting an attempt to lure users to malicious infrastructure. The presence of a large number of PDF links, many pointing to Shopify domains, indicates a link farm strategy to potentially improve SEO for the malicious redirector.

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=inventory+costing+methods+pdf In PDF document text
    • http://files.vytru.com/uploads/1/3/1/6/131606060/5706210.pdfIn PDF document text
    • http://mubesej.joaogouveia.co.uk/uploads/1/3/1/4/131409090/belitoruguro-vexemeva-joziwofol.pdfIn PDF document text
    • http://bixexime.marieandcharlie.com/uploads/1/3/0/7/130776068/pijuxewegutamafe.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/1/0430/1219/4463/files/anjali_anjali_pushpanjali_instrumental_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5955/9065/files/21081255963.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5665/0650/files/jabolisepaziwikiten.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3049/4882/files/26502873957.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7870/3521/files/86236235579.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/30096593880.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5557/8273/files/23384156428.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6482/6773/files/relekadusajubujilariju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gofusibosaduxigagixuvoma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/62386903812.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006901.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6901 5212 bytes
SHA-256: bd881d789d4d57ab641d4600d467ef1fe2a9bd324c116fe5e032f561a21dc61a
font_01_sfnt_off00007aa0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AA0 10404 bytes
SHA-256: edf8c6e1bc1c02d0670a78e6872d0e47567253b8ce45d188c6a4ca8890007aac
font_02_sfnt_off00009da7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9DA7 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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