Malicious PDF — malware analysis report

Static analysis result for SHA-256 eec1f0b898b2519b…

MALICIOUS

PDF

50.6 KB Created: 2020-08-10 18:23:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dbf85f9102e492885c84989e91de1453 SHA-1: 3b4eaea23b75dffc0a7bf2ce2ffaa6acaaed552f SHA-256: eec1f0b898b2519be7a32e052e8ff5a4e46ec4a768491840e1929a2c96d16f7c
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains embedded links, with one heuristic specifically identifying a malicious redirector. The document body text, though corrupted, suggests a lure related to a 'promissory note'. The presence of numerous external PDF links, many hosted on Shopify, further indicates a link farm designed to distribute malicious content. The primary malicious IOC is the redirector URL.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=sample+of+promissory+note+pdf In PDF document text
    • http://files.hanzykim.com/uploads/1/3/0/7/130776646/4688292.pdfIn PDF document text
    • http://files.mobilecraftbottlingcompany.com/uploads/1/3/2/7/132740511/menotigezewutebar.pdfIn PDF document text
    • http://files.bmqg.org/uploads/1/3/0/9/130969695/546635.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/1/0435/4854/1087/files/70516705184.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bafewemuwidizisaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6336/0153/files/6th_pay_commission_pay_scale_table.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2230/9786/files/97718369412.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13170590630.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5717/6986/files/17641015302.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/0701/1998/files/memories_of_midnight.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tovaje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75904593322.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3284/5207/files/ordering_fractions_from_least_to_greatest_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1881/1552/files/fiwofegunuxifusoxutigipam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7036/4571/files/73430256557.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1361/0392/files/zetotalefejanonevenixad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1725/6603/files/vapozi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5879/8492/files/kali_linux_full_tutorial_pdf.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 6

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_off000086a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86A4 5392 bytes
SHA-256: 6de81364a3767b7b4c43c6fd118f3ddf81903f15a3e41e9afdc3fae2ef96b319
font_01_sfnt_off000098e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98E8 10548 bytes
SHA-256: 5c5a40f8b0d4a15e65f3936ab9a232b133a53de2d4d677fc20ddfd5b881fa5c3

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