Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1c718ec645bb07f…

MALICIOUS

PDF

41.1 KB Created: 2020-08-13 23:35:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d3dd2d639a1b5e9f1149dfcf363f7c13 SHA-1: 147596fd6671872a850abe27ad4ff11a90bbfd49 SHA-256: c1c718ec645bb07f239abec56bb708ae0448d34a51bc37e1abdcdd2d65852e58
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one identified as a malicious redirector to 'https://ttraff.com/pify?keyword=barcode+attendance+system+pdf'. The document body also contains this URL and other links pointing to Shopify-hosted PDFs, suggesting a link farm or SEO poisoning tactic. The ML classifier strongly indicated maliciousness, and the presence of a malicious redirector confirms the intent to lead users to harmful 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.com/pify?keyword=barcode+attendance+system+pdf In PDF document text
    • http://files.scimedart.com/uploads/1/3/2/7/132712623/revibuziv.pdfIn PDF document text
    • http://files.combatathletepa.com/uploads/1/3/1/6/131606490/3de92c5.pdfIn PDF document text
    • http://files.cailenfu.com/uploads/1/3/1/4/131437444/rutez_wubusaxofab_kajali_zuwogor.pdfIn PDF document text
    • http://xotug.movedurham.org/uploads/1/3/1/4/131437121/f2e5331.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/1/0431/7793/5004/files/viwojune.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2492/5340/files/sesobamoret.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2574/4547/files/vutazux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4809/0270/files/export_rides_from_uber.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/63529720688.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7652/7014/files/lorawomemipawoxazol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8245/7000/files/ratotafekenewu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4117/7248/files/gugitosefivolotaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mavadusuwavofemikedoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4830/4797/files/black_s_law_dictionary_9th_edition_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2873/3352/files/cake_recipes_with_pictures.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2396/5079/files/33735520046.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_off000062fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62FD 5420 bytes
SHA-256: b581665ac446e429002a0bc6a2e39293ea043018c0c4b2336967ecee1a1d4545
font_01_sfnt_off00007558.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7558 9968 bytes
SHA-256: 2e7ba357fcc4a08244e89dc039046cf1f16f9602ea2946004e8f61fb4ed3a6e4

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