Malicious PDF — malware analysis report

Static analysis result for SHA-256 1cb96f488ed70c03…

MALICIOUS

PDF

46.3 KB Created: 2020-08-21 11:14:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d42f8b841473a0bf2ce334718e8723c9 SHA-1: 3c01b448c55f0628c2cfc6dde992706f7a5e0a6f SHA-256: 1cb96f488ed70c03ac04a56a91e28d19e2114714e3ea0db6f24c98c6f75a4d52
194 Risk Score

Malware Insights

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

The PDF was flagged as malicious by an ML classifier and contains a large number of external links, characteristic of a link farm. One of these links points to a known malicious redirector, ttraff.com, which is designed to lead users to further malicious content. The document body, though heavily obfuscated, contains the URL to the malicious redirector and other URLs hosted on cdn.shopify.com, suggesting a lure to download or visit potentially harmful sites.

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.com/pify?keyword=vidmate+apk+pro+full In PDF document text
    • http://files.regalpropertymgmt.com/uploads/1/3/1/8/131856134/4744554.pdfIn PDF document text
    • http://tedew.stevemager.com/uploads/1/3/1/8/131856330/236956ae.pdfIn PDF document text
    • http://nemata.samollynnangoras.com/uploads/1/3/1/8/131871721/mewabagadaj.pdfIn PDF document text
    • http://jumagen.tracytruesdale.org/uploads/1/3/0/8/130874359/vawezezuk.pdfIn PDF document text
    • http://tutewivu.armchairacademia.org/uploads/1/3/1/3/131398017/2828202.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/1/0430/3385/4103/files/sejiwopizabasopavibo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4474/7929/files/informez_vous_orthographe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4100/4443/files/mozuvadodu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5359/6310/files/telecharger_je_me_debrouille_en_anglais_gratuit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7748/4196/files/inside_the_actors_studio_robin_williams.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/4558/8887/files/the_beowulf_poet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9515/3058/files/68994881475.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8565/2375/files/95125835458.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005d03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D03 5040 bytes
SHA-256: c78ec23e7137a8e48e8628ffc9549ce68c09f5a23c5582e1b243521d161e901f
font_01_sfnt_off00006e19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E19 10164 bytes
SHA-256: 6d64c8d831d223e3ab25dff0f844c1691f978b4a1bcd6d2fc289715e8f18a660
font_02_sfnt_off00009127.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9127 17804 bytes
SHA-256: c90bba6ba3c2f32509ea424a8ada236ffab927b802a03ef29878418013d46e52

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