Malicious PDF — malware analysis report

Static analysis result for SHA-256 14d8df2c2e06f431…

MALICIOUS

PDF

42.4 KB Created: 2020-08-09 20:05:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3640f400d22708d4a15c0c90f0df4c73 SHA-1: 2254b00f25407c49cc86aabb6d52ae16aafba25b SHA-256: 14d8df2c2e06f4316e25dd94548886408f674c8f5c402d21a8e627c68da87a33
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector URL, indicating an attempt to lead users to malicious content. The ML classifier strongly suggests maliciousness. The embedded URLs, particularly the one pointing to 'ttraff.ru', are indicative of a phishing or scam attempt, likely designed to deliver a secondary payload or redirect to a credential harvesting page.

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=filariasis+pdf+indonesia In PDF document text
    • http://mogudel.chapelcaravans.com/uploads/1/3/2/7/132710592/d9682bc.pdfIn PDF document text
    • http://files.henryclaytongenealogy.com/uploads/1/3/1/8/131857562/1283216.pdfIn PDF document text
    • http://files.windz.co/uploads/1/3/0/7/130776205/aff1a.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/1/0434/0305/1171/files/43690145938.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0934/2621/files/java_import_scanner.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9792/2461/files/15232373026.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2064/7576/files/32079605547.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4473/2065/files/jedigasas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3156/0354/files/96321038452.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1988/3928/files/65939867210.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/3238/3381/files/ct_ghp_trc_tuyn.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1763/3949/files/sazemakuvu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0379/5865/files/butterworth_bandpass_filter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2969/2577/files/sodoganosarala.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1761/6034/files/53782387832.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4433/8854/files/fluid_mechanics_solution_manual.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_off000067ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67CA 4988 bytes
SHA-256: bd66f07ee8d06c89da95d34bd40b168d1862c8caf7f4a03aac3416612f2cff03
font_01_sfnt_off000078d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78D4 10868 bytes
SHA-256: b1a6d17c1e7c8a4622bbd11e570e3bebe8a26fabd0cee92fe8b96611e1ecf2ab

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