Malicious PDF — malware analysis report

Static analysis result for SHA-256 081fab18dccbdb7a…

MALICIOUS

PDF

48.3 KB Created: 2020-08-07 19:57:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: eea5aa1e0c52929fa47f88e6654e809c SHA-1: 73c074cc8f03cb7e365516e2404b11f19f519af8 SHA-256: 081fab18dccbdb7ab678e8d73b9a30c6489c05d13b660da81c10a676028e006e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains embedded links that redirect to malicious infrastructure, specifically identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' and 'PDF_SEO_LINK_FARM' heuristics. The document body, though obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=lista+de+numeros+en+ingles+pdf', which is a known malicious redirector. This suggests a phishing or scam attempt disguised as a benign document.

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=lista+de+numeros+en+ingles+pdf In PDF document text
    • http://files.stoneranchpta.org/uploads/1/3/0/7/130739116/4e9eff098.pdfIn PDF document text
    • http://files.southforkwatershed.org/uploads/1/3/1/3/131384429/mifibepabi_muvokama_fimamarim_nibunonij.pdfIn PDF document text
    • http://vamuxop.cocktailsnponytails.com/uploads/1/3/1/8/131856161/migilat.pdfIn PDF document text
    • http://files.keanaturephotography.com/uploads/1/3/2/6/132681294/1919030.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/1/0430/9280/3744/files/93027800128.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/minecraft_cops_and_robbers_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4677/9552/files/7096072348.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2672/7580/files/les_berceaux_faure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2745/5382/files/lubugokojozed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8226/1415/files/79720469289.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/9837/9174/files/sedabirifidepuluvi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6225/3978/files/dupez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2807/0052/files/jokikufuginexo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2585/8711/files/45801202995.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4068/3685/files/konumekusanitavimavabe.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_off00006a20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A20 5300 bytes
SHA-256: 480ff3bf997dbc5c95f2d4c06a91b81e4eba057e5cc672181ec3ef41ec8dc739
font_01_sfnt_off00007c0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C0F 1800 bytes
SHA-256: 51ebeec29509b87aa858d500e37ac8853184703d07d1f913ce36d8e1dc7764c0
font_02_sfnt_off0000849d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x849D 15108 bytes
SHA-256: f2376e27a0cb87b92c725cdd1e44002c3be44c85853f3da6b6806fafb38b0c8b

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