Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d2ba9c442fd719a…

MALICIOUS

PDF

36.9 KB Created: 2020-09-14 10:57:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c82ad5d6371bacf1361d7bd381b669bd SHA-1: 5c9c370cd93d0b507fab15019b2647bda787db93 SHA-256: 7d2ba9c442fd719a9a44b8b9a085f57d93d5d28e60e4078b5639a7482cc384ec
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous embedded links, many of which point to redirector services and SEO link farms. These links are designed to trick users into downloading further malicious content by posing as legitimate technical manuals. The ML classifier strongly indicated maliciousness, and the presence of redirector links confirms a malicious intent to lead users to harmful content.

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.me/pify?keyword=apple+thunderbolt+display+27-inch+technician+guide+service+manual In PDF document text
    • http://files.husbandandwifeworldtravels.com/uploads/1/3/0/8/130815140/9091826.pdfIn PDF document text
    • http://wazik.bendtrendhomes.com/uploads/1/3/1/6/131606490/lalorogedenibezod.pdfIn PDF document text
    • http://files.southcreekcandleco.shop/uploads/1/3/1/8/131858481/7586349.pdfIn PDF document text
    • http://files.inspiredlearningationa.org/uploads/1/3/0/9/130969663/bepiferagi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/20d83a_4074409ce93b481bbd94e554cac207b1.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/c5d40f_af00100a94a84ff886db72a888b90846.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/7f16bd_9a562cf8d15648bba5c459a941eb642f.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/e2f7e1_d265eef430344e86b734987061751bfb.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/2ddd39_a9a21b7a470441449301813a1c0309a6.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2873/4375/files/fapezofaguzitibemub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0252/7895/files/gupomixosoduzeman.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4141/4552/files/nakuwatunagoxopir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3490/0642/files/one_republic_apologize_piano_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4411/9462/files/makekititatalage.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0712/3357/files/chava_book_download_in_marathi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0089/7440/files/avast_4._8_license_key_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5122/0134/files/android_messages_change_color.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_off00004f3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F3B 6024 bytes
SHA-256: fa343fc51635ab99cdd026a8cd3bf2cfcf5ce1e0c4c0c14059ac9c3f9e703941
font_01_sfnt_off000063a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63A0 10060 bytes
SHA-256: db4ed142ce17800242c91f965cb53d1e8519b2c29cf254d9ba4cb728a3f7b917

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