Malicious PDF — malware analysis report

Static analysis result for SHA-256 62a693e4c60a2133…

MALICIOUS

PDF

41.0 KB Created: 2020-08-19 11:52:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e99cf7497da3425fda185b3a327c8266 SHA-1: eabe8e2f4e6ba42f3fcd56317729ccf9501b234c SHA-256: 62a693e4c60a213367592c0308ff99a60bea8d614d536dd389fc74d65862d9e2
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating these links point to known malicious redirector infrastructure. The document body and heuristics suggest an attempt to drive traffic to a malicious site, likely for phishing or SEO poisoning. No scripts were extracted, but the presence of embedded URLs and the ML classifier's high confidence score support this assessment.

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.cc/pify?keyword=jinja+template+outer+loop+index In PDF document text
    • http://legiv.exclamationservicesusa.com/uploads/1/3/2/7/132741198/a210a1283b6.pdfIn PDF document text
    • http://meveje.gilipalms.com/uploads/1/3/0/7/130739963/1a3cd5680679.pdfIn PDF document text
    • http://davewoju.sctaci.com/uploads/1/3/1/4/131454065/2d2dfbb1ea.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/1/0436/3033/0016/files/wubixorot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7730/2427/files/nimunilavapemajazavinil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wexidemunuviviradepinitim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4518/9792/files/classification_of_anti_tuberculosis_drugs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/5494/3643/files/chinese_cuisine_menu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8538/0246/files/86389384863.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kusamusa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0976/7584/files/33050749862.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0346/2303/files/60853528080.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 1

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_off000062e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62E4 5060 bytes
SHA-256: 886a5b8f0162838fb6809a579963829f1e7f3bd780cf61e1ff648ec0a35f9dee
font_01_sfnt_off00007403.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7403 10344 bytes
SHA-256: a2ee3ad2701e8acfc154612bf2190345b5b63ebe569b29aa747f17fccf14e68b

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