Malicious PDF — malware analysis report

Static analysis result for SHA-256 06f9455546792b23…

MALICIOUS

PDF

39.6 KB Created: 2020-08-20 05:47:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: db437930213d9a7a0978ea66463e3979 SHA-1: 32450aa8ca5d69d4920e3d9d5675e9d1fbe889db SHA-256: 06f9455546792b2341f9b122fe75ad994a1c4a63ad66d17fe1cc9061c698d283
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous embedded links, many of which point to a redirector service known for malicious activity. The document body and heuristics indicate a link farm strategy, likely intended to deceive users into visiting malicious sites for phishing or malware delivery. The ML classifier strongly supports the malicious nature of this PDF.

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=microcellular+rubber+sheet+hsn+code In PDF document text
    • http://files.naturallytamar.com/uploads/1/3/0/7/130739269/puxoxebu.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/1/0430/3729/4754/files/denetosuvil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6105/1546/files/wosenamamuda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6645/7254/files/991_es_plus_calculator_tricks.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9060/8285/files/harbor_breeze_remote_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7768/8743/files/tabubomipitivaxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1337/3084/files/d_d_3._5_barbarian_character_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/1299/2674/files/understanding_psychology_kasschau.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4029/8392/files/22215389160.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5150/7094/files/31303613571.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7727/0692/files/galesabizuweguxum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5840/5274/files/37002864284.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 2

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_off00004ecc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4ECC 5172 bytes
SHA-256: 1a4058563a858cdf5740a962ba36a48b12cd390cb380a8f554bb727092080004
font_01_sfnt_off00006052.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6052 15692 bytes
SHA-256: e6aab4cc7bac436f18067cb897e460e0fd18f25e22b96e7b6be8a65f08dc7ff8

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