Malicious PDF — malware analysis report

Static analysis result for SHA-256 101f1e11322c9e82…

MALICIOUS

PDF

40.8 KB Created: 2020-07-29 11:11:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: eea6a769c2c0ce73e4cf79d997a60890 SHA-1: 3554fdabb91a5196377da218604af01ede6f3bb9 SHA-256: 101f1e11322c9e8274d7e5de9705869e960727e027035d9498cbdef1256a6227
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains a link farm and a redirector URL, indicating a phishing or scam attempt. The ML classifier strongly suggests maliciousness. The document body, though heavily obfuscated, appears to be a lure for a '2020 year at a glance calendar pdf'. The primary malicious IOC is the redirector URL which likely leads to further 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=2020+year+at+a+glance+calendar+pdf In PDF document text
    • http://files.nestgiftsdecor.com/uploads/1/3/1/4/131406592/wigutevurevivitubam.pdfIn PDF document text
    • http://files.jjsdka.org/uploads/1/3/0/9/130969819/98a098cf.pdfIn PDF document text
    • http://files.utterlyuncluttered.com/uploads/1/3/1/4/131437660/rusabubemopudej.pdfIn PDF document text
    • http://files.cagecommerical.com/uploads/1/3/1/6/131606546/eccdead.pdfIn PDF document text
    • http://files.melwycked.com/uploads/1/3/2/6/132682829/7338453.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/1/0432/7541/9812/files/letalevodused.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2269/6096/files/jatubewuwedowajenajimora.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4024/2840/files/65568604542.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2623/4009/files/pewuzugutarodiwovemekak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3410/7286/files/39541814697.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5209/5898/files/xewafiwizomus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8733/1481/files/magetikovuboj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0011/7928/files/dedaxek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5651/2676/files/xukadadilaxuniz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2926/4546/files/nomovoguxowajoxit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1855/9389/files/bedatagetozumifigerez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3464/6440/files/tadilomifasasudaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8819/1396/files/pilozufoxutopinelejikisot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0679/3627/files/86618918299.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 8

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_off000062df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62DF 5056 bytes
SHA-256: c3eee82bd37407b697afb7f962c6ee4ccbb2ff95ab27f876094913d804c58079
font_01_sfnt_off00007419.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7419 9932 bytes
SHA-256: b8e1deb94558458b582f937dfea5abe99212d08996352e0ceebd5d5935a2a19f

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