Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d3c9eb3a8389518…

MALICIOUS

PDF

55.8 KB Created: 2020-08-09 03:27:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 41bbe64679fa3897aa429d3ec0316ba3 SHA-1: 924be048398f62a624f04e32190c2277e4e61921 SHA-256: 3d3c9eb3a83895181e69cf0092635467b28f16911f0d216bb3de1f75f17bdc45
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'Treatment of depression pdf' and includes the same malicious URL. The file also exhibits characteristics of a PDF SEO link farm, with numerous links to other PDFs hosted on Shopify, likely to obscure the malicious redirector. The primary intent appears to be directing users to malicious infrastructure under the guise of providing information.

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=treatment+of+depression+pdf In PDF document text
    • http://files.iwfgeorgia.org/uploads/1/3/1/4/131455883/dofez.pdfIn PDF document text
    • http://vejatisir.egfhc.com/uploads/1/3/2/3/132303382/7971862.pdfIn PDF document text
    • http://files.nourishecovillage.com/uploads/1/3/1/4/131453121/dewuxenew.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/50971407729.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2121/3591/files/47611409689.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8833/9354/files/vemonoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8066/3705/files/sifivenawiwabasezoso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nazowexoratusitufunu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3900/6618/files/9204549203.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4012/6614/files/analytical_methods_for_biology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7839/3762/files/free_minecraft_account_and_password.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0419/8044/files/39568839009.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0364/9953/files/propiedades_de_la_planta_moringa.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009076.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9076 4892 bytes
SHA-256: 940f3f8ddcafe34e802801bf93f56e18d9b39118e6f924e27117d7208c1f71b0
font_01_sfnt_off0000a0f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA0F4 10516 bytes
SHA-256: 20366f7e9b86a0895459d7699a80794eaf93a4768373bb97b3d5d48e50438e3f
font_02_sfnt_off0000c493.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC493 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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