Malicious PDF — malware analysis report

Static analysis result for SHA-256 6493d91712e6d3fa…

MALICIOUS

PDF

48.0 KB Created: 2020-08-18 17:05:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e5135dd143b1e509e7ea2c0f6e30d976 SHA-1: 22e3ab2069aeb062801033a221812e90d2a133f2 SHA-256: 6493d91712e6d3fa6a9d1ad0bd199a993f5824c98bdfcc29478906f6c5952cd3
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with a critical heuristic identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, also contains URLs that point to potentially malicious or SEO-farmed content. This suggests the primary goal is to redirect the user to a malicious site, likely for phishing or to download further malware.

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.ru/pify?keyword=culture+shock+esl+worksheet In PDF document text
    • http://files.lasalservices.com/uploads/1/3/1/4/131455283/fadojefonodado.pdfIn PDF document text
    • http://files.chzaz.com/uploads/1/3/0/7/130776519/vutowu.pdfIn PDF document text
    • http://kudew.fullcirclewellnessretreats.com/uploads/1/3/2/8/132814930/5017518.pdfIn PDF document text
    • http://kejomi.woodbridgepsychicfair.com/uploads/1/3/2/7/132740873/2322846.pdfIn PDF document text
    • http://files.rhettisemantrull.net/uploads/1/3/1/0/131070476/b65829bc67.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/1/0440/1994/1541/files/14392344680.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4627/9080/files/72724464031.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6028/0982/files/tuladigitokixexusow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4895/0170/files/bill_of_lading_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8382/4294/files/73009651172.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7055/3238/files/91627711904.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/2500/1630/files/nomenclature_of_aromatic_compounds_rules.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 7

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_off00007dde.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DDE 4740 bytes
SHA-256: dfd136045fc871abecad7f1b1d3c8ac924e39018693519b355653496bbcf044f
font_01_sfnt_off00008e09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E09 10460 bytes
SHA-256: a6e562513e9ef8209068aef970cea9cb2cd27ab54f98a8ae2c02cb75a60bf01a

Open this report in the interactive analyzer, or submit your own file for analysis.