Malicious PDF — malware analysis report

Static analysis result for SHA-256 8eaf7d961ae121c9…

MALICIOUS

PDF

39.2 KB Created: 2020-08-12 05:02:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ae24540e9099145567d508409ef13cdf SHA-1: d3cfe580d380baf3764890e65075c6ae6f2480f3 SHA-256: 8eaf7d961ae121c99d7c20b92fdf4261e8e1bdab0a993627c844d27d09084899
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link to a known malicious redirector, ttraff.com, disguised as a job application. This heuristic, combined with the ML classifier flagging the PDF as malicious, strongly suggests a phishing or malware delivery attempt. The document body, though heavily obfuscated, contains the same URL, reinforcing the malicious intent. The presence of numerous other links, many hosted on Shopify, indicates a potential link farm used for SEO poisoning or distributing further payloads.

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/wb?keyword=formasi%20penerimaan%20cpns%202019%20pdf In PDF document text
    • http://files.digitalliteracycookbook.org/uploads/1/3/1/3/131381802/kikipumupo-wenexufuw-mitarigegat-xafas.pdfIn PDF document text
    • http://files.pigadvocates.com/uploads/1/3/2/8/132814241/tubuva-rizozoj-noxedopatizaler.pdfIn PDF document text
    • http://files.littlecrabastrology.com/uploads/1/3/2/7/132740234/wogosugujugutelo.pdfIn PDF document text
    • http://files.vcmilc.org/uploads/1/3/0/7/130775934/5952526.pdfIn PDF document text
    • http://files.voitstudios.com/uploads/1/3/1/3/131380107/xofunejidulakelu.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/1/0435/9972/4702/files/67528705338.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8221/1735/files/boboreg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7574/7491/files/pujikulusajevij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pigirerunozekolufis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4853/2128/files/8579322075.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9936/3222/files/13323342524.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tepumesuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1397/9812/files/76594869278.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3886/7607/files/viwaxijasebak.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 4

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_off00005b0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B0D 5708 bytes
SHA-256: 6ed4b8f0aed02820a7a0fb2acda227330d695b6cc997a7ac5f2fab10dc931d1d
font_01_sfnt_off00006e58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E58 9848 bytes
SHA-256: f9cfd795502556fc998d929f7acee59e627cdcd7cd694552d1be3adc84e35858

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