Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4293c21cf499458…

MALICIOUS

PDF

42.3 KB Created: 2020-09-17 11:51:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 498020a2c14c94e28683f1406ce1be61 SHA-1: 288a791de93909d5637c118d07c06be30ef02813 SHA-256: d4293c21cf499458e98438392fbbc4ed2c9b48b46fa5a8bcfc3e5659063ff621
194 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links designed to redirect users to potentially malicious websites. One prominent link, 'https://ttraff.link/wix?keyword=ingots+or+bars+of+precious+metals', suggests a lure related to financial assets. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms the presence of links to known malicious redirector infrastructure. The 'PDF_SEO_LINK_FARM' heuristic indicates a large number of outbound links, many of which point to PDF files hosted on various domains, suggesting a link farm or SEO poisoning tactic.

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.link/wix?keyword=ingots+or+bars+of+precious+metals In PDF document text
    • http://files.berryessahoa.com/uploads/1/3/1/6/131606619/gajufisixaji.pdfIn PDF document text
    • http://files.tartancanvas.com/uploads/1/3/1/1/131163832/tabiribaxosanu_tunefusid.pdfIn PDF document text
    • http://xalupofaf.bendigochinesemedicine.com/uploads/1/3/0/7/130775934/6515144.pdfIn PDF document text
    • http://files.autumntheodorephotography.com/uploads/1/3/1/6/131608016/d457ad266e6d7.pdfIn PDF document text
    • http://files.406berners.com/uploads/1/3/2/6/132696512/zisakewapojaz-vuxuzaxamifu.pdfIn PDF document text
    • http://files.distantfin.net/uploads/1/3/1/3/131384777/jefuwetave_dumusuletokipox.pdfIn PDF document text
    • http://gokuno.bonniesmart.com/uploads/1/3/1/8/131871767/40e68.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/1/0481/6574/8887/files/gamecube_backup_launcher_wii_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7251/0362/files/81276503914.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4457/7178/files/xipisopitozuxinife.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7088/1946/files/wodemomeseje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1868/9432/files/63594498870.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5851/1510/files/surah_baqarah_full_in_arabic.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5996/1239/files/juegos_android_apk_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/6225/9612/files/fovekosubimoxuwoxadurij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0233/9232/files/lavamubunifoferuxuvam.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 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_off00006412.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6412 5412 bytes
SHA-256: 600b167633b8459cdc92306f4e176f6015c5cc394b6ca00d487c732581d4d77b
font_01_sfnt_off0000766c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x766C 11436 bytes
SHA-256: db952b6f1eab24b7323f14bc9617bb46bbf05b0ce8bcefd1615329aad87682ce

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