Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ae1aeb4c08d1c64…

MALICIOUS

PDF

44.8 KB Created: 2020-08-20 06:43:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 883d5da7d115040c1d01709128ec2f4c SHA-1: f41d3b643a5737cc5c2063d4086f5c2f8395cebd SHA-256: 8ae1aeb4c08d1c640155320a49747b121610a249a6ec5ad252a1e7c1faff7ee0
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, a technique often used for SEO poisoning or to distribute malicious content. One of the URLs, 'https://ttraff.ru/pify?keyword=narrative+report+sample+for+ojt+students', is flagged as a known malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting it is the primary lure. The presence of numerous other links, including to Shopify, indicates a link farm strategy. No scripts were extracted from this sample.

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=narrative+report+sample+for+ojt+students In PDF document text
    • http://files.conquergoodcreative.com/uploads/1/3/0/7/130775232/lemix-bozawobo-wifiv-telivuxakaduse.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/1/0435/3690/8439/files/fractions_to_percents_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4198/7479/files/58647620689.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7692/5078/files/watch_j_dorama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0470/6464/files/44483941438.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6858/7174/files/boxing_training_at_home_workouts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9068/2783/files/gizowuvok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4925/4041/files/nudigofopujumolologo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0131/4456/files/jovagujopuzuxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1533/1227/files/85074049023.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 4

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_off000070ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70AC 5292 bytes
SHA-256: c4121bbca1cfa7bae3730caeebb06e6ee8bc117a44f54354a58088f0ebab1797
font_01_sfnt_off000082a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82A1 10592 bytes
SHA-256: 192c9dae822abe8ced3fd01f70a5f5123111985be0bfec336dd093a0ca3375ed

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