Malicious PDF — malware analysis report

Static analysis result for SHA-256 35a6edcf95b611b9…

MALICIOUS

PDF

41.6 KB Created: 2020-08-03 08:11:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f63787aff3f85a8c9fd62fe4a30092c5 SHA-1: 7bda83ae4a7ec462060f5e230dfc857fd5ae8671 SHA-256: 35a6edcf95b611b9170ade5c8a17ef75f2faf9886ee85ad7970b807a0e17e9c2
234 Risk Score

Malware Insights

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

The PDF document contains a fake CAPTCHA prompt to lure the user into clicking a link. The primary malicious link identified is https://ttraff.com/pify?keyword=va+form+21-+8416, which is a known malicious redirector. The document also hosts a large number of other PDF files on Shopify domains, likely as part of an SEO link farm to obscure the malicious activity. No scripts were extracted, but the presence of a malicious redirector and the fake CAPTCHA strongly indicate a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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=va+form+21-+8416 In PDF document text
    • http://files.porvenirmassacre.org/uploads/1/3/1/1/131164260/7536692.pdfIn PDF document text
    • http://files.everydayverde.com/uploads/1/3/1/4/131453111/weleniwonewapu_luzupakojon_nawozixupebaw_xadon.pdfIn PDF document text
    • http://files.insitju.com/uploads/1/3/1/0/131069904/37120711f58.pdfIn PDF document text
    • http://files.cumnocknswmemorials.com/uploads/1/3/1/6/131606954/273dd22a878a.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/1/0429/1824/8601/files/98676756430.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bobidaxida.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2031/2991/files/85372056932.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2289/8584/files/ableton_live_9_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6642/4486/files/57713210316.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5712/7336/files/fobedutab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mojijemorewowasimagaxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wajumibuxup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0790/0835/files/fufedagemobaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9545/7941/files/webus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3459/8809/files/watije.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6876/5848/files/93657911825.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_off0000653a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x653A 5320 bytes
SHA-256: ec9b75cb9091c0b280037091f176596b5c5dd89a7188e920c316855dee8e30ca
font_01_sfnt_off00007758.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7758 10096 bytes
SHA-256: 8e5401c5dd761b23ed5473d7c0b0813856032dea13351dfc7c18f8648d103770

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