Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c0c2322197c2ba5…

MALICIOUS

PDF

39.6 KB Created: 2020-08-09 10:09:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8c65babde5b7d68dddf5cd0a53b02324 SHA-1: c7b4257b331374460a404742cf8a185ee5a4169b SHA-256: 0c0c2322197c2ba5324ed0bef30499c13c3dc2d7e3411706c11a79b53ea3272c
202 Risk Score

Malware Insights

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

This PDF document contains multiple links pointing to a redirector service, which in turn leads to a large number of other PDF files hosted on Shopify. The presence of a "malicious redirector link" and a "link farm" heuristic, along with the ML classifier, strongly suggests a malicious intent to distribute further content, likely malicious itself. The document body contains a deceptive link that appears to be a download button, reinforcing the lure for users to click and download additional files.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=simple+past+tense+verb+to+be+exercises+pdf In PDF document text
    • http://tikin.glossopoeist.com/uploads/1/3/2/6/132681352/2554115.pdfIn PDF document text
    • http://files.saugushighschoollearningcommons.org/uploads/1/3/2/3/132303238/simamo.pdfIn PDF document text
    • http://files.littleboxfarm.com/uploads/1/3/2/7/132712661/4577359.pdfIn PDF document text
    • http://files.artworkbydallas.com/uploads/1/3/0/7/130738607/sarojol.pdfIn PDF document text
    • http://karujofur.mollyjonescello.com/uploads/1/3/1/4/131453870/9395964.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/1/0431/6764/5852/files/75068364922.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5533/0981/files/tukaretazimudapukizu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4068/4697/files/49290433685.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7679/4021/files/42973802176.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8351/3494/files/gaman.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4579/6512/files/office_building_design_standards.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9200/9379/files/1888057010.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2892/9960/files/satirimasimo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0184/5659/files/bulugapegodesi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5307/2022/files/how_to_use_digital_multimeter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3504/1685/files/89661794700.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004619.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4619 5672 bytes
SHA-256: 483d216cd4745692aab2c5c9bc495fe3676cf74a55fef5bbbd559e5d66fbffdd
font_01_sfnt_off00005947.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5947 9740 bytes
SHA-256: 2d5fde46b38a873e05df3ab6cdb9d406eb18d79d5f8ac18fb635b6a7a0273744
font_02_sfnt_off00007ad1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AD1 16060 bytes
SHA-256: d78d7cc1a68daa951b4fbccbcfb906d5a08ad384f187125596154666a45abe72