Malicious PDF — malware analysis report

Static analysis result for SHA-256 deb55e5c99a131dd…

MALICIOUS

PDF

48.3 KB Created: 2020-07-31 12:49:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1394d2bdd6d9f4852b36fa0a03c0f949 SHA-1: 53f64ff215df4f1abdbff7519bb756e7942db6e6 SHA-256: deb55e5c99a131ddf6ac1be5d50d07f0377ac4595eecb038d76b7b1b8661f421
194 Risk Score

Malware Insights

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

The PDF file contains a malicious redirector link disguised as 'payroll accounting notes'. This link leads to a link farm hosted on cdn.shopify.com, which likely serves as a distribution point for further malicious content. The SE_INVOICE_LURE heuristic indicates the document's content is designed to deceive users into taking an action, such as clicking the provided 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=payroll+accounting+notes+pdf In PDF document text
    • http://files.meadowshomegardenclub.com/uploads/1/3/1/6/131606165/jemit_tezijesik_zukasagaboripe_zibusasulexefi.pdfIn PDF document text
    • http://files.swatimetals.com/uploads/1/3/0/7/130739789/f86baf71e4f326.pdfIn PDF document text
    • http://files.redhawksmusic.org/uploads/1/3/0/7/130775200/riledasuraj_dujudinep_gogatolewaro_dekan.pdfIn PDF document text
    • http://files.fairydogmothertrainer.com/uploads/1/3/0/9/130969825/vavego-pubot-nodugi.pdfIn PDF document text
    • http://files.ulveling.com/uploads/1/3/1/6/131637953/pefekufigebe-mipif-kobegulaji.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/1/0434/4040/6684/files/bebodul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9993/9235/files/wogumumiko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7768/7701/files/68389529869.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/16779745642.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5352/9753/files/padurusufavetilijutafavak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2270/5055/files/dudabewuzugerufita.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9462/0837/files/36926213523.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8153/9483/files/4766088147.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6924/3553/files/53234432799.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4141/5580/files/96770448824.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7657/4620/files/17310937338.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7741/0720/files/98378857740.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 5

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_off00007de7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DE7 5308 bytes
SHA-256: 4a4257dffb23d7e55bc2e94f8a37b292ac4a1c541928a48596315d4630823455
font_01_sfnt_off0000900a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x900A 10536 bytes
SHA-256: 8a9ad4e9c16ee250d075b50589c6ec71bf950da3cd738a7942d3a9af9c5f4736

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