Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6cb5023a93de4ae…

MALICIOUS

PDF

39.8 KB Created: 2020-08-24 10:57:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9129c5a48604532517cf0ec25347f305 SHA-1: 827d0d7673a2266f814a32ea21155075377b707b SHA-256: a6cb5023a93de4ae8de1f50df4f3719adc6be4ea73d09d852f68bffc1e94b4cc
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=outlook+2016+64+bit+free'. This URL is presented within the document body, suggesting a social engineering lure to trick users into downloading software. The PDF also contains a large number of embedded links, many pointing to Shopify, which is flagged as a link farm, further indicating a malicious distribution strategy.

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=outlook+2016+64+bit+free In PDF document text
    • http://girev.fresnomarriagecounselor.com/uploads/1/3/1/4/131453870/tovatef-panulezut-guxafasur.pdfIn PDF document text
    • http://files.vegsense.net/uploads/1/3/1/4/131437376/rinulusojepibok-koxol-nunowavije-pagezosab.pdfIn PDF document text
    • http://files.christophersusak.com/uploads/1/3/1/4/131407096/662cd222c4ff.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/1/0440/6912/6309/files/mijebi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2396/5080/files/rexowonodasubolonajam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5300/6494/files/rulozakobilumo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3663/0422/files/66449553117.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8353/9366/files/central_limit_theorem_problems_and_solutions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4047/9131/files/kebutuhan_dasar_manusia_adalah_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2117/2897/files/povusopurivozemufuxaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0992/3493/files/xigodaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7309/2246/files/pegipumuzo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/59577082877.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3048/4904/files/vajaxagugunufutarof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5458/8316/files/1055060311.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8397/2256/files/social_psychology_4th_edition_test_bank.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 5

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_off00005eab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EAB 5172 bytes
SHA-256: 9038f07a185a00b9c44dece968ef478df95a844add5ce22614dfe1dd2a5c19cc
font_01_sfnt_off0000705c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x705C 10020 bytes
SHA-256: 1be9262e7637461ba400127287d993c3bc704ae6e12e986fcefb2f752a9a1de2

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