Malicious PDF — malware analysis report

Static analysis result for SHA-256 1022e55830507de8…

MALICIOUS

PDF

39.2 KB Created: 2020-08-12 20:30:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7a24b6b56bdacc9841bdddd59f8af26f SHA-1: d6b4fd54d53ed0aa40639da5fbe725e643cfd118 SHA-256: 1022e55830507de85c7a17150348c4baea00697885f08ef7e7e3854eb38ca1d3
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) that appears to be part of a link farm for SEO-based phishing. The document body, though heavily obfuscated, contains a URL that matches the redirector, suggesting the primary purpose is to drive traffic to malicious or deceptive content. The ML classifier strongly indicates maliciousness, and the presence of multiple PDF link farm heuristics confirms the deceptive linking 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=handbook+of+affinity+chromatography+pdf In PDF document text
    • http://files.saikatahamed.com/uploads/1/3/2/7/132740723/3741960.pdfIn PDF document text
    • http://zinilu.bydivineappointmentthe5ps.com/uploads/1/3/0/7/130738524/figevebozaliti_musuj.pdfIn PDF document text
    • http://files.ridgecreektack.com/uploads/1/3/0/7/130739456/5467233.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/1/0432/9717/7768/files/achim_klenke_probability_theory_a_comprehensive_course.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2819/3184/files/miwawegisos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7373/2769/files/totipixekiwofub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7469/8902/files/36501796087.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/7793/8855/files/maritime_terms_dictionary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8976/5276/files/67084180271.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2222/8379/files/38418967199.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1434/8197/files/72137975632.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1060/3677/files/92663780767.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gizuvesadumewagetikuxumut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9028/9574/files/gift_voucher_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/38743570217.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0344/4380/files/automobile_ignition_system.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_off00005857.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5857 5628 bytes
SHA-256: c3e293bf3523cb7b5fce4347ae1a38892be603274320cf7b5f311cbc577c7916
font_01_sfnt_off00006b46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B46 10764 bytes
SHA-256: a43015dc9c188fa683c6554b153702732e84f286373750735cf41803b24d1cc6

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