Malicious PDF — malware analysis report

Static analysis result for SHA-256 19b736e2a56320f5…

MALICIOUS

PDF

44.1 KB Created: 2020-08-21 07:42:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4facfa55f49f79a34a2202ab9d9a3851 SHA-1: 5702be42fab5500fae53c9a3d98eeb5ff91207b3 SHA-256: 19b736e2a56320f5cc640aa3c281143177b11e15f48fb07a17a3d16f3492ff72
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service known to host malicious content. The document body itself includes the primary malicious URL, suggesting a phishing or scam attempt to trick users into downloading further malicious content. The ML classifier strongly indicates maliciousness.

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=report+contraband+cigarettes+uk In PDF document text
    • http://files.daphnefatterphd.com/uploads/1/3/0/7/130774979/pobizu.pdfIn PDF document text
    • http://files.mindbodymovementarts.com/uploads/1/3/1/4/131407263/25030fbc1.pdfIn PDF document text
    • http://wubiv.alexandriatalley.com/uploads/1/3/0/7/130775565/tejexexetanonot_lomudi_lobokojoxo_vatexiwes.pdfIn PDF document text
    • http://files.resourcefulindonesian.com/uploads/1/3/2/6/132681634/3e04a07fbb.pdfIn PDF document text
    • http://wedawiva.mindfulmilestones.org/uploads/1/3/1/4/131407995/73efae28edb.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/1/0428/4953/4111/files/xalonakonorele.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3824/5017/files/35269358165.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1219/4463/files/event_planning_website_template_wordpress.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3099/2280/files/flat_rent_agreement_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4449/3720/files/1-_99_herblore_guide_osrs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6719/4021/files/82593821118.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4218/6150/files/88387527546.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2755/4723/files/99062213904.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7795/0870/files/94565656274.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6905/4886/files/wozilefametaj.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_off00006da3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DA3 5420 bytes
SHA-256: 3bbe5d0635f8d674b668d8226dff3e12aa87fe7e596208e1c7323f0a51374283
font_01_sfnt_off0000801e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x801E 10536 bytes
SHA-256: de9b9f4ca1d29031a5a8b2fb4b86d93d735018f864c6881a6ae3a6bff1195d98

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