Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9e33cacdc324d5e…

MALICIOUS

PDF

41.7 KB Created: 2020-08-21 21:59:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cf17bd63d32b5168e396feefa0fefe18 SHA-1: 9426a1bdd66b97c06db030b4cc7ba7f9c71d7558 SHA-256: c9e33cacdc324d5edda3c975c5a8afa4464bdceac192fb660d13c52298fc525a
202 Risk Score

Malware Insights

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

The PDF contains multiple links to redirector infrastructure, specifically `https://ttraff.cc/pify?keyword=imanage+work+mobility+user+guide`, which is flagged as malicious. The document body, though heavily obfuscated, contains this URL and other benign-looking Shopify URLs, suggesting a phishing or scam attempt to trick users into downloading potentially malicious files. The ML classifier strongly supports the malicious verdict.

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=imanage+work+mobility+user+guide In PDF document text
    • http://poboge.kmblaw.com/uploads/1/3/2/3/132303338/9208297.pdfIn PDF document text
    • http://giveme.stellathelight.com/uploads/1/3/1/8/131856257/9999842.pdfIn PDF document text
    • http://files.aitech4u.com/uploads/1/3/1/6/131608037/jebibusenam-zevafa-nonekupovubipe-dulari.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/1/0433/6241/8847/files/budiwajabokejo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0860/5859/files/mupumazijuzemodikoxija.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1323/2024/files/6396059885.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1739/5614/files/sidegize.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5959/2859/files/adobe_audition_offline_installer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/39646295774.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1877/9815/files/57379218720.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5307/8933/files/77934679692.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7334/7488/files/17271269309.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0631/1070/files/croissant_sheet_recipes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3825/2954/files/alimentation_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2272/0922/files/boats_and_streams_short_tricks.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6424/5925/files/vitavopexabufopuravumov.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006541.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6541 5480 bytes
SHA-256: 81f7f4680a92c6063f9581016d0df25f84d62411c6550a474d5c20a78c65785a
font_01_sfnt_off000077d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77D7 9780 bytes
SHA-256: f1e40f996112ceb996ec012864f3cb4c755f859870ce6d25523abf9a46f4d092