Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1614f9f85d6e94a…

MALICIOUS

PDF

43.0 KB Created: 2020-08-04 21:10:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 241d040770355f845a7f98514c0a9fd7 SHA-1: 74bb75f4d9c8829f5ae7c873ed912143f175afa5 SHA-256: e1614f9f85d6e94a3aee1837754527b4a17b4b9e51d3a9c41305e1e2a053a1a6
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs. The ML classifier strongly flagged this PDF as malicious. The primary attack vector appears to be luring users to a malicious site via the embedded link.

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.ru/pify?keyword=namorado+de+aluguel+pdf+le+livros In PDF document text
    • http://files.fitnessfwd.com/uploads/1/3/1/4/131453054/3332664.pdfIn PDF document text
    • http://files.graceumclindy.org/uploads/1/3/1/3/131398334/lebux_dikobinuva_sizagow_sofivifiri.pdfIn PDF document text
    • http://faxedimu.caprinexnz.com/uploads/1/3/0/8/130873995/mafevone_nipiviresidizo_dawamijiku_durudidefu.pdfIn PDF document text
    • http://files.carrollcountycommunitycenter.org/uploads/1/3/1/4/131406403/ledaj.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/1/0429/2886/5446/files/71740305810.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0960/5791/files/75707993446.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0636/9703/files/the_quarters_east_lansing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3042/9346/files/rock_tumbler_instructions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9943/7721/files/30830903525.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5235/8049/files/razer_naga_drivers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9971/6770/files/lovekefemilenoduretavu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9671/1069/files/94211699991.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0105/2312/files/demewolujut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1510/0826/files/xokatisogurubemedakoluwiv.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 2

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_off0000585b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x585B 5084 bytes
SHA-256: 1c90f208974d3a58b7052dc25d533e5a0d3c543ef55282a89b3d36c93e6386b4
font_01_sfnt_off000069b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69B4 12336 bytes
SHA-256: 6118c8076b1e9326701e2c8846be34566adfce7bdcb4d7f7e3e16fed376db033
font_02_sfnt_off00008f5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F5F 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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