Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c0247157009c6d7…

MALICIOUS

PDF

40.8 KB Created: 2020-08-06 17:34:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 98d4244adfb678898c05a05c248c8142 SHA-1: 9e166c5d98eca29de65da35e55bc9987d95abe38 SHA-256: 0c0247157009c6d79b0d7f629c9ee51bf1f1c3314f6c95b89ce9d3ae4b74593e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

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 text that appears to be a lure related to "seemingly irrelevant decisions" and includes the malicious URL. This suggests a phishing attempt to redirect users to malicious infrastructure.

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=seemingly+irrelevant+decisions+pdf In PDF document text
    • http://zikome.thejazzyjewelzstudio.com/uploads/1/3/1/0/131070590/343263.pdfIn PDF document text
    • http://files.ecoyoga.us/uploads/1/3/1/0/131070152/dajurekumije.pdfIn PDF document text
    • http://files.bukekan.com/uploads/1/3/1/3/131381919/mimepesowimetef_pesufetagadag_zodejo_pafevolurovob.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/1/0429/5111/4908/files/sugolexenelubolija.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3861/3415/files/xorovoxamo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4273/2192/files/jorojodigovumedurunobu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7919/7081/files/ponasadarowakasuxat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/60561448525.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4996/8035/files/sukim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1816/5146/files/48799144105.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2476/1507/files/25695320125.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6019/8557/files/31313721574.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3414/0056/files/7693813008.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/8805/7254/files/docker_rm_all.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 3

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_off000060a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60A1 5740 bytes
SHA-256: db315ed87087a71adcc0f00e08564451e0f33b5450da8d718d73b93793c0d372
font_01_sfnt_off0000742a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x742A 10056 bytes
SHA-256: 8d1d997d065105839553a580be203acd3be52db5d7dc1272aedcd085da75f979

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