Malicious PDF — malware analysis report

Static analysis result for SHA-256 b89f00b96c89e242…

MALICIOUS

PDF

58.4 KB Created: 2020-08-22 23:44:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0b73b6cf98b5ff7fc4aa2f7e0741d3f6 SHA-1: f409c27c48e6cb7e3824f740876154d827fd11c0 SHA-256: b89f00b96c89e24240630037b203887703f47e775dc69c2c37442d1b838ec59d
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, contains text related to academic worksheets and the malicious URL, suggesting a lure to disguise the malicious intent. The ML classifier strongly flagged this PDF as malicious, and the presence of a redirector link indicates a likely phishing or malware delivery attempt.

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=jefferson+vs+hamilton+worksheet+answers In PDF document text
    • http://files.wildida.com/uploads/1/3/1/4/131482968/dafisaboberepu.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/1/0435/8638/8136/files/kenutukupozafexewi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9846/4661/files/mkv_to_mov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1141/5962/files/70107024314.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4115/2421/files/lodupajinepirorogogawefuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7688/6431/files/rixuwamu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0475/5096/files/pavositokoguruwodoliwud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1802/5122/files/united_airlines_mechanic_contract.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3127/3365/files/48132039648.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3152/7575/files/r_vs_r_studio.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2297/4117/files/45206641670.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7971/0360/files/zojebatasiduriwopoxow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3393/6547/files/27351426457.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_off00008c1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C1E 5000 bytes
SHA-256: ae6a15e151340716201db21fbfe984a81f8e6b6f4c6ca450d660c08659fce1e4
font_01_sfnt_off00009cfe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CFE 16064 bytes
SHA-256: 24b1956bb0138cdc97ebffeb532f533b8fea86e83604957c4d15ae2596e868c5
font_02_sfnt_off0000ce6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE6E 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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