Malicious PDF — malware analysis report

Static analysis result for SHA-256 379e4f631333acf5…

MALICIOUS

PDF

45.7 KB Created: 2020-08-21 03:15:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0188fe2eeeafa5600237f964f74d24f3 SHA-1: c25d1c7d62bd6f2a0d28011312b590231fa0a9f1 SHA-256: 379e4f631333acf5e33653e8c529c1f1d250995cb5286b3d445970f3abe789e4
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains text related to 'weekly calendar template' and the malicious URL, suggesting a lure. The PDF also hosts a link farm pointing to other PDFs on Shopify domains, likely for SEO poisoning to increase visibility. No scripts were extracted from this sample.

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=weekly+calendar+template+word+doc In PDF document text
    • http://wexado.batholdtimedancers.co.uk/uploads/1/3/1/8/131871655/5718192.pdfIn PDF document text
    • http://files.bhaktiyogi.org/uploads/1/3/1/4/131437276/2033441.pdfIn PDF document text
    • http://vasag.fireprotectionspecialists.net/uploads/1/3/1/0/131070161/soxitu.pdfIn PDF document text
    • http://karedik.resilientpeople.ca/uploads/1/3/1/4/131454215/fafab.pdfIn PDF document text
    • http://files.irr-f.org/uploads/1/3/0/7/130739776/af5c3dd83c0056.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/1/0433/8614/2876/files/dudedeli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4111/9647/files/active_learning_cooperation_in_the_college_classroom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0505/6920/files/busuu_pro_apk_onhax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5670/9288/files/coca_cola_history.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5646/3014/files/84161005755.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1713/4502/files/wikavonagajajirukesepelol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1673/2315/files/xakenafububosokez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1835/3815/files/nutupemadusugoseb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9236/9823/files/letterhead_format_in_word.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0416/6297/files/80238334945.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000067a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67A5 5052 bytes
SHA-256: 081ac34516fb2f35e0014ec76e1dc9a75f3f0d55db03522c11ea30132031d63b
font_01_sfnt_off000078d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78D2 10452 bytes
SHA-256: c28424af21fcaa600b8ffb80476a962631371df9146c357249d93e8feab3fa73
font_02_sfnt_off00009bb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9BB8 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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