Malicious PDF — malware analysis report

Static analysis result for SHA-256 591773571516805d…

MALICIOUS

PDF

45.7 KB Created: 2020-08-10 03:59:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 09278abe97b1de625daf6105932b9d69 SHA-1: 662a4a5982ea0ebe9ae376a8739c11b8295da7c8 SHA-256: 591773571516805d4a7028a44a1a1fc4993621e06c719c2d57cf15d1b7c200d6
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The ML classifier strongly indicates maliciousness. The document body, though partially corrupted, contains the malicious URL and appears to be a lure for users to click on the provided links, likely leading to further malicious content or downloads.

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=berg+balance+scale+adalah+pdf In PDF document text
    • http://files.olaarte.com/uploads/1/3/1/3/131380915/2919274.pdfIn PDF document text
    • http://vovusaj.junedulshahid.com/uploads/1/3/2/7/132740405/6542858.pdfIn PDF document text
    • http://pefekapo.mvhope.org/uploads/1/3/1/6/131606407/jiwebawefu-faxupedukapab.pdfIn PDF document text
    • http://files.nicksforzaferrari.net/uploads/1/3/0/8/130813769/2fb452e61.pdfIn PDF document text
    • http://files.independencetheatreandperformingarts.com/uploads/1/3/1/1/131164063/c0fc256c.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/1/0432/5533/3027/files/watchmen_comic_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1044/0862/files/zuwofer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8991/1194/files/21213761120.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4873/9740/files/xofuxoridujoriwebewajaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6574/5312/files/fomiguzodiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2849/5001/files/matlab_circle_plot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gumatuzonew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0988/4838/files/7027653263.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4722/3458/files/40526734820.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3320/5655/files/55401263232.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3348/5727/files/vudorujaxer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4162/8072/files/1773982956.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 5

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_off000067cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67CD 5604 bytes
SHA-256: 55ec7555f3aa20fed77f5737bfdae9bb785500459fe920423cc76e661ce979b7
font_01_sfnt_off00007ad0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AD0 14964 bytes
SHA-256: d4087c13cc05924158b6c041e5bcb41b678a7b36f182168d1f83406258af5045

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