Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cdef39308cf29fb…

MALICIOUS

PDF

42.5 KB Created: 2020-07-28 02:28:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 82635ba8859a42656f0f9e095097d280 SHA-1: 56182c54ecef4c7db93c39d716f8cf2f72707a02 SHA-256: 3cdef39308cf29fbf592e5c93bb0b50c4c16ea4bb9df2d9941af553c9835f845
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF file contains a lure related to a 'Consumer reports magazine discount subscription' and includes a heuristic firing for a malicious redirector link. The document body, though heavily obfuscated, contains text fragments consistent with this lure. The primary malicious IOC is the redirector URL, which is designed to lead users to further malicious content. The PDF also contains a large number of embedded links, many pointing to Shopify domains, suggesting an attempt to create a link farm for SEO poisoning or to host payloads.

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) 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.com/pify?keyword=consumer+reports+magazine+discount+subscription In PDF document text
    • http://files.theapostoliccommunion.org/uploads/1/3/1/0/131070792/6551103.pdfIn PDF document text
    • http://files.unityofheartfalmouth.com/uploads/1/3/0/7/130775515/rorifovoxotu-jigezolisogizol.pdfIn PDF document text
    • http://files.colorblast5k.org/uploads/1/3/0/7/130776728/591498.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/1/0431/0233/9232/files/49447756821.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5657/8212/files/turadufireburuwevawo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3980/8922/files/fefazo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0262/5178/files/74954830917.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2386/7805/files/17987958296.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2992/0930/files/7489917499.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0903/2863/files/50242546739.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5287/5424/files/98117159982.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2702/1480/files/gugax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8974/0441/files/97860196840.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5450/5882/files/5717637249.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1573/2376/files/59671231326.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1076/8546/files/zutesinekazuwoxowixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4638/5317/files/fegozuzamifubawedonikow.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_off00006645.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6645 5456 bytes
SHA-256: 7fa6b5a396e2ee2b1c2f4c379f0d14d5f35ec8bea4067b5201a1d8b3633e9dcd
font_01_sfnt_off000078b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78B7 10440 bytes
SHA-256: 789862a30a869fe81640588fbaf03c773e34c5b420a0e013bb3cce882557bb55

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