Malicious PDF — malware analysis report

Static analysis result for SHA-256 146124dbffd90c02…

MALICIOUS

PDF

39.6 KB Created: 2020-08-20 09:14:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1713903da55ce97ea9495fbfcf343d1a SHA-1: 2e5274fa46e88efa86dfeefaf2aae9ea3cca8e45 SHA-256: 146124dbffd90c024c780c112e5f6800445ba6098ea7e90a2932aba39be818e3
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains references to the same redirector URL and other PDF files hosted on Shopify, suggesting a link farm or phishing lure. The ML classifier strongly indicates maliciousness, and the presence of redirector links points towards an attempt to deliver a secondary payload or phish credentials.

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=coplanar+waveguide+using+hfss In PDF document text
    • http://files.rosaliesilliman.com/uploads/1/3/0/9/130969090/eec70.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/1/0431/4831/2730/files/eagle_eye_headlights.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/15125842299.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6124/7129/files/oxigen_micro_atm_commission_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5305/6149/files/dajabotida.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5509/5712/files/15185289522.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2817/5255/files/jegezova.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2403/9592/files/8603685642.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/3256/4132/files/interview_questions_on_control_systems.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0595/2671/files/validity_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1926/2357/files/2954420982.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8349/7623/files/dinafaralawire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7646/0447/files/wuwozo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005057.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5057 5280 bytes
SHA-256: 4f019ea7d4c0f3534678ddb58264bbac2a8c491ebe433443c525859dad267913
font_01_sfnt_off00006256.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6256 9712 bytes
SHA-256: 7332a1301b5f2d8a37be160e45d5c3465a61cf814a06a4340d6e07e4adb8a478
font_02_sfnt_off00008387.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8387 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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