Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a96c4c6b4689c3c…

MALICIOUS

PDF

53.8 KB Created: 2020-08-09 20:18:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2aba27d441a1972ed09188ac4a8f91a1 SHA-1: cb0615268625a6267a0b0ac70cb23822df3c0c87 SHA-256: 1a96c4c6b4689c3ca857daad4db0a8f6f6f8308ca0444eeeb1691fbba2c9306b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector link pointing to 'ttraff.cc'. The document body, though heavily obfuscated, contains text related to 'Arduino software manual pdf', suggesting a lure. The presence of a large number of external PDF links, many hosted on cdn.shopify.com, indicates a link farm designed to improve search engine ranking for malicious content.

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.cc/pify?keyword=arduino+software+manual+pdf In PDF document text
    • http://rasuwuses.mypeoplenc.com/uploads/1/3/2/3/132303382/wusudirafemokobuked.pdfIn PDF document text
    • http://files.leonschainsawpartsandrepair.com/uploads/1/3/2/6/132696558/fc1355ae9111.pdfIn PDF document text
    • http://files.liveyoursicily.com/uploads/1/3/1/4/131483445/839016.pdfIn PDF document text
    • http://files.stellashaw.com/uploads/1/3/1/4/131437669/tibukugumop.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/1/0429/4007/2092/files/pomelavosurubokasev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9474/6023/files/ucf_greek_rank.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7474/0639/files/61354162550.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4035/9068/files/ditifotesazilobixikorafe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1171/6766/files/lejonajorigaziwojuzubef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1253/0081/files/25055039390.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9807/1450/files/mewuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7514/1794/files/bawepaparelu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6472/1562/files/giliguwufod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7754/1787/files/woxupofikodisazawa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2949/4936/files/vikebizamunudij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7141/5196/files/suxukadefagujivufiwuzaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0393/5902/files/82111991428.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 4

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_off000094fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94FE 5268 bytes
SHA-256: 757fc368d6c6eef71499123ec555206b335537381f785ad52630dee89307212f
font_01_sfnt_off0000a6e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA6E7 10308 bytes
SHA-256: c248d86625265c0371c6be111e04d25dffd17cf813a42fe7df23ca1a0fb6647b

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