Malicious PDF — malware analysis report

Static analysis result for SHA-256 aba324562415abd0…

MALICIOUS

PDF

39.3 KB Created: 2020-08-09 23:40:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e80aadb59713cec244253996776039e8 SHA-1: f3b297c595689e85819f93539bb1f7716b5add85 SHA-256: aba324562415abd037c1e4a9d6a307d3dcb3492c8f6bf46d732d7e093419df84
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded URLs, with a significant number pointing to a redirector service (ttraff.com) that likely obscures the ultimate malicious destination. The ML classifier strongly indicated maliciousness, and the presence of a link farm heuristic further supports a malicious intent, likely for phishing or malware distribution. No scripts were extracted, but the structure and URL patterns are indicative of a malicious PDF.

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=bilingual+definition+pdf In PDF document text
    • http://tafas.westkellowyurts.com/uploads/1/3/1/3/131398091/kezewixe.pdfIn PDF document text
    • http://jakube.shaktiiasacademy.com/uploads/1/3/0/7/130775506/geledawegore-keliguguron.pdfIn PDF document text
    • http://files.hrshootersguide.com/uploads/1/3/0/7/130738752/libilarajuroxotad.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/1/0437/1713/2456/files/79279846906.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tunamowari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4117/7252/files/138790658.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4063/5042/files/magic_item_compendium_3._5e_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0463/2992/files/viverikaluxasono.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7963/1012/files/fazukare.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1818/2041/files/family_assessment_tools_adalah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1311/0951/files/adhyatma_in_marathi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1685/5457/files/30263088738.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9468/8419/files/binom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2208/8354/files/bjt_circuit_analysis.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 2

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_off00005b97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B97 4984 bytes
SHA-256: 5d9f1209759617c9d82b652b53108620fc87346e43c18289f8e742383fbf9d02
font_01_sfnt_off00006cac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CAC 10676 bytes
SHA-256: 922ad73a2c8ab3bdd01ac0cff5de5c2f779ba12359bcbd05d3096248a7897b1f

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