Malicious PDF — malware analysis report

Static analysis result for SHA-256 27c22c64f52cff0a…

MALICIOUS

PDF

41.2 KB Created: 2020-08-09 04:03:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e5db7e168eeb1f6a9c16db3a374d1eb8 SHA-1: b814fb3a310d1d6202f3b34d9f26f9b2f0baa6f4 SHA-256: 27c22c64f52cff0af1416c06ed0db189edf8d83008a8ab3e70a0f17f953ba77a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a malicious redirector link disguised as a work-life balance policy document. The ML classifier strongly indicated maliciousness, and the PDF_SEO_LINK_FARM heuristic shows a large number of external links, many of which are hosted on Shopify. The primary malicious IOC is the ttraff.cc redirector URL, which likely leads to further malicious content.

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=work+life+balance+policies+pdf In PDF document text
    • http://files.bayareaboatandhomeloans.com/uploads/1/3/0/8/130874480/2721930.pdfIn PDF document text
    • http://tiparodab.katasangkhae.com/uploads/1/3/1/4/131453645/9442712.pdfIn PDF document text
    • http://files.ie-proaudio.com/uploads/1/3/1/4/131455337/1140044.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/1/0433/7870/4549/files/cinderella_short_story_with_pictures.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5537/3720/files/8918827047.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3301/9047/files/69426682879.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2905/4118/files/gipezegasakejawolul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8705/9352/files/sofujafogativusasegi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2637/5071/files/sokevufejapogibupazodimo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3377/9611/files/ortopedia_y_traumatologa_revisin_sistemtica_miller_5a_edicin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3486/8897/files/pojej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7049/6672/files/29683369665.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4054/6721/files/tasaxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3874/3450/files/danimar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0549/2904/files/reading_comprehension_worksheets_5th_grade.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 5

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_off0000637e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x637E 5368 bytes
SHA-256: c54a52fb39013b489175cca26778542d3d076492915850eae6ee82d9719e79ef
font_01_sfnt_off000075d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75D6 10292 bytes
SHA-256: 7d58b2996c99206f779f51d63a022641cabf9529514c7db08068550c675a072c

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