Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d1e17e2f7475e24…

MALICIOUS

PDF

48.7 KB Created: 2020-08-21 21:57:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8616a837a1c531087ac6520653d75872 SHA-1: 4c1fc28bded2901241f0e487d8adb04e636ad2d3 SHA-256: 8d1e17e2f7475e24a432bf9cb71acb206c97e7ac0d0080dbd416e562e2761590
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=dietary+guidelines+for+vegetarians+uk'. This suggests the document is designed to redirect users to malicious sites, likely for phishing or malware delivery. The presence of a large number of external PDF links also indicates a link farm, a common tactic for SEO poisoning or distributing malicious content. 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.com/pify?keyword=dietary+guidelines+for+vegetarians+uk In PDF document text
    • http://files.aspergerdrivertraining.com/uploads/1/3/1/4/131452735/6857f4724.pdfIn PDF document text
    • http://girivu.yabraff.com/uploads/1/3/1/6/131606457/tejazujimot.pdfIn PDF document text
    • http://funakeb.bendigounited.com/uploads/1/3/2/8/132814964/945499.pdfIn PDF document text
    • http://zipejisuk.richmondbulldogs.org/uploads/1/3/1/4/131438110/d5edfa380.pdfIn PDF document text
    • http://files.mjournalts.com/uploads/1/3/0/7/130775565/vupiwubon.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/1/0432/7342/0965/files/dipikevewigexasesipog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4964/7261/files/xuxoninosubekowekasajuruz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9019/8180/files/bajifox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6707/0877/files/cefr_in_malaysia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6681/7689/files/80526481042.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9413/8277/files/80020670467.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2312/3100/files/pl_sql_developer_timestamp_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7583/5806/files/jan_gan_man_cartoon_video.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5840/5274/files/pixivakajanutawavumepobix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8119/5927/files/74637886378.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000073b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73B8 5180 bytes
SHA-256: a79efa5f425e04d5e35a4636b1363e11b383b93768a2df1ea17ac6aaa40cde29
font_01_sfnt_off0000857e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x857E 10012 bytes
SHA-256: 9f073134daa8909ab2e8bcc351ce655d4a2b6b7a553346dd2e3710d49384b1fd
font_02_sfnt_off0000a7d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA7D7 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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