Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5d8c6c9e3d90807…

MALICIOUS

PDF

57.0 KB Created: 2020-08-04 02:10:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 17a8dd1e2de7ee4a7a5d4b45182f91c2 SHA-1: 09f3387cbc698437f9a34d20453ae63a361ae07d SHA-256: a5d8c6c9e3d90807cdbfbef2b8a55e10ddfff7f0e7ba60a080c0e31d58f6b183
214 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, includes text related to 'articles of incorporation california pdf' and a URL that appears to be part of a link farm designed to attract search engine traffic. The presence of a callback lure heuristic further suggests a phishing or scam attempt, likely aiming to redirect users to malicious sites or solicit information.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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=articles+of+incorporation+california+pdf In PDF document text
    • http://files.thelearningoptions.co/uploads/1/3/0/7/130775528/zitubemapaxutilu.pdfIn PDF document text
    • http://files.naturesconfluence.com/uploads/1/3/0/7/130775698/zifutoxufaguxusa.pdfIn PDF document text
    • http://gagone.daleshandmadesoaps.com/uploads/1/3/2/6/132695278/a73ff25536.pdfIn PDF document text
    • http://files.carsontidwell.com/uploads/1/3/1/4/131411199/914059.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/1/0432/1653/5720/files/malodomitabitekoriwoxobek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1994/2563/files/fufurekipozovu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9243/4326/files/fuxozerizosewik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tefukina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9244/3303/files/53412782705.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7374/7609/files/31663526065.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2465/3224/files/31164581827.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1731/3176/files/26315894840.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8314/4104/files/gisudawiwopakusogol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1594/6911/files/ronezeguled.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2041/1303/files/24711366185.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2381/9164/files/64900484705.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a205.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA205 5140 bytes
SHA-256: 203118cee110594a0b07d4fbc77425ca932a71b8c9e36575a93b17b4dcb6d673
font_01_sfnt_off0000b392.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB392 10456 bytes
SHA-256: cb2d41bba026ec3e00eb8079d9c59e90253b5f45500c3d3b4ef93bfab164430b

Open this report in the interactive analyzer, or submit your own file for analysis.