Malicious PDF — malware analysis report

Static analysis result for SHA-256 daa64c399df2f7c2…

MALICIOUS

PDF

42.9 KB Created: 2020-08-21 22:43:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: af03ec666decdcf2a4349e3f55dbb2cd SHA-1: e0489d4a7169cde10ee422b991ac930efbe3f57f SHA-256: daa64c399df2f7c26fec2d81adc31a9e6db34071a6534a3202dd93beb36af240
202 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a Wells Fargo retirement loan payoff form, aiming to trick users into clicking it. The document body and heuristics indicate an urgency lure, suggesting the intent is to drive users to malicious infrastructure. The presence of numerous embedded links, many pointing to Shopify domains, further supports a link farm or redirection strategy.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=wells+fargo+retirement+loan+payoff+form In PDF document text
    • http://files.edwardcooperrealty.com/uploads/1/3/1/3/131380511/filise.pdfIn PDF document text
    • http://rireluva.cameliaburn.com/uploads/1/3/1/6/131606165/1e420f7.pdfIn PDF document text
    • http://files.kawarthafootclinic.com/uploads/1/3/1/6/131637308/fikidorasowumif.pdfIn PDF document text
    • http://files.the-gym.org/uploads/1/3/0/9/130969371/fb03992fa0eee.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/1/0438/8411/8184/files/fasume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1880/3607/files/84236258210.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/7848/6933/files/77956094836.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9318/1081/files/vurozisafuwifasoma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6082/0133/files/bauhaus_latin_flipfont_apk_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0777/8711/files/dosugorujotowozoro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2529/0648/files/patidu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0940/1254/files/wurizepeduduzugazo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5797/0329/files/bowipubapibunetiluf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6383/6834/files/52296298247.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/5421/9683/files/log_inequalities_worksheet.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_off00006a0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A0F 5336 bytes
SHA-256: d81e91df50ba713c71740c4ea46325b0945b164cca02da4ff044637b3445c4aa
font_01_sfnt_off00007c32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C32 10168 bytes
SHA-256: 955581ba1eaa9ce3e5c18b2a3e9a388462b697e6db45e3b7d585b1d663347400

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