Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4be3d2ce2caf590…

MALICIOUS

PDF

56.5 KB Created: 2020-08-14 18:22:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f18acdaa07731110694cd1831435cb46 SHA-1: 1bea54b87a517d347bd55c09d69ea1f828fdb5a8 SHA-256: d4be3d2ce2caf590d37968b5e7f97aa526e1050111d1ad8f8216e5487f848fa4
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is designed to lure users into clicking on further malicious links. The document body, though heavily obfuscated, contains the target URL and other potentially malicious links. The ML classifier also strongly indicated maliciousness. The primary attack pattern involves a deceptive link disguised as SAT practice test material.

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=ivy+global+sat+practice+test+3+answers In PDF document text
    • http://mozef.wholesalebedsfurniturecentre.com/uploads/1/3/0/9/130969352/lelimizugupe-sisetixapu-tiraj-retemeve.pdfIn PDF document text
    • http://files.travisasharp.com/uploads/1/3/1/4/131438571/2c4071.pdfIn PDF document text
    • http://nizafo.mikezichellaart.com/uploads/1/3/0/8/130814017/getolixoroso-sizimureretu-dekupuk-narur.pdfIn PDF document text
    • http://dojivijur.mrslovdokken.com/uploads/1/3/0/8/130874317/5672494.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/1/0433/8440/6181/files/lp_hernia_inguinalis_lateralis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99324429390.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6186/2810/files/tumblr_theme_html_code.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3864/4123/files/xumesobidarigozixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2330/9727/files/malojupijota.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3328/8088/files/89489634561.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4094/8892/files/71463057840.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/6445/4294/files/effects_of_globalisation_on_culture.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8038/4674/files/kia_sorento_repair_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7318/3643/files/81856416202.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2629/2629/files/logrolling_definition_ap_gov.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 1

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_off0000a088.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA088 5596 bytes
SHA-256: c9f72a6fe93d65ee82b8a8ffb85c5b684b50f5be79c57cd42127e52e765a7e99
font_01_sfnt_off0000b3b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB3B6 9812 bytes
SHA-256: 386e9cffbcbfb95c45d9cf7be5c7773b7fdb68d2e1e824278937a2bb1e3419da

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