Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cc2e8b0d442932b…

MALICIOUS

PDF

41.7 KB Created: 2020-08-23 02:55:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bd8751c63fe9f1ec30d7648fde860ed2 SHA-1: 89650a492649688b910532eaf22f7f60b9fc2b6c SHA-256: 3cc2e8b0d442932b1a556519e70b4cb818be1f549dbcebbd1494ee2d2a72860b
194 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by an ML classifier and contains a critical heuristic indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text that appears to be a lure for an 'attendance app' and includes the malicious URL. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to distribute the malicious payload.

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=my+attendance+app In PDF document text
    • http://diduwon.silverdalevillagemarket.co.nz/uploads/1/3/1/3/131398404/tilajoxixejep.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/1/0433/0687/7080/files/lawup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6430/3516/files/kulizisolizasubadewezitom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8858/4605/files/kavafupaponik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5213/0716/files/23453420140.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3714/7811/files/belajar_tajwid_praktis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1637/9816/files/42927127673.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8089/0008/files/74779129189.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1338/9992/files/dewex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1586/2434/files/death_note_full_movie_english_dub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9405/6861/files/45657136411.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0863/7602/files/fazevovunikilemiwarin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2816/0413/files/97028331644.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fuwemosuwizukuxitakalav.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_off00006817.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6817 4868 bytes
SHA-256: c201fa90c77bc2f1b85550c93be47135eec208f50e784ceacd0b08f3f5f9c2aa
font_01_sfnt_off000078bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78BD 9820 bytes
SHA-256: f94d373e30e5177b7ab5ce4d8158cd65ae648401c94ad7c2d0b6992b8c2c7c97

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