Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0867168844ab07a…

MALICIOUS

PDF

44.2 KB Created: 2020-08-17 02:41:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 85671e298aa7e33100a950467a9d96d4 SHA-1: c2f3d8ddf5713b66ee581b182328872616bb46c3 SHA-256: e0867168844ab07ae93bc99978690bd60a9289996036e01ffb05c68af67ffbb2
194 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, many of which are hosted on Shopify domains, but one critical link redirects to a known malicious domain. The document body, though heavily obfuscated, contains text suggesting a lure related to "Respiratory system diagram answers" and explicitly includes the malicious URL. This indicates a phishing or redirection attack designed to lead the user 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.com/pify?keyword=respiratory+system+diagram+answers In PDF document text
    • http://pusuki.gregoryharpermusic.com/uploads/1/3/1/3/131380600/5219115.pdfIn PDF document text
    • http://mexoti.mosaicjusticenetwork.org/uploads/1/3/1/3/131383791/7b25547f2800.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/1/0433/0664/7717/files/domet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/0922/5382/files/socket_head_bolt_dimensions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2672/7580/files/lolipafaxoxudom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3549/1490/files/fexikomi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3686/8762/files/xekarodoputafadefen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7453/6103/files/pupelakixilibitazuxidili.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4954/7938/files/erling_kagge_silence.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0544/3237/files/48448896075.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0511/4528/files/inflammatory_bowel_disease_journal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8674/0646/files/7317031951.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0817/0918/files/91793412418.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7353/5138/files/pros_of_school_uniforms_articles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3519/7602/files/kumivebixuxuki.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 1

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_off00006340.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6340 5236 bytes
SHA-256: 979161bd55705fa210ce96479287d7febe2bf7537d942c0d83b9346726fbfc40
font_01_sfnt_off0000750d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x750D 9616 bytes
SHA-256: 2a4d92835c5b91bb821d49ccc26500e2c67dfa6c2cca04658bc76a40ca060f87
font_02_sfnt_off000095bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95BF 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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