Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae9f7862d2a10a95…

MALICIOUS

PDF

43.4 KB Created: 2020-07-31 19:17:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 06eb8c44599b3ba3d02ff875ee1bbe31 SHA-1: a45e8b76d75d8bb0548d21ef225af6ef69eb213f SHA-256: ae9f7862d2a10a95751d9c11a499669123da435da52b6ff5c787e6f5669c3e86
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service. The heuristic PDF_SEO_LINK_FARM indicates a mass external PDF link farm, and PDF_MALICIOUS_REDIRECTOR_LINK specifically flags a link to known malicious infrastructure. The ML classifier also strongly indicated maliciousness. The document body contains garbled text, suggesting it's not intended for direct user consumption but rather to host links.

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.cc/pify?keyword=css+z+index In PDF document text
    • http://files.theuniqueboutique.co.uk/uploads/1/3/0/7/130740589/1169495.pdfIn PDF document text
    • http://files.terramutt.com/uploads/1/3/0/9/130969659/remipileg_fukalipokag_kawugigi.pdfIn PDF document text
    • http://files.marcelwesdorp.nl/uploads/1/3/1/4/131454255/f418353a54cefcc.pdfIn PDF document text
    • http://files.blog.deansoiltrek.com/uploads/1/3/1/1/131164153/2973878.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/1/0432/8400/5032/files/vobolurelesadanirurex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2964/2911/files/97769413925.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1189/9551/files/32735777676.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1814/8261/files/kofozowerufel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9755/4084/files/96635152833.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5915/8938/files/81188428629.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6627/8556/files/fulub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wixedazatujiguxup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8731/4590/files/tukina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/liwisubusamepumiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8212/9320/files/40875762650.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5636/4709/files/94035932524.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 6

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_off00005bac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BAC 4220 bytes
SHA-256: 53deecc55e039cd07635252245354ef79f4830a434b633f81f888b7cfae82ebb
font_01_sfnt_off00006a00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A00 14512 bytes
SHA-256: 0fc6f75228a5e0be628b06d2bbf1b2e872a52629fb3964e33ec8bed5bfb34776
font_02_sfnt_off00009327.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9327 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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