Malicious PDF — malware analysis report

Static analysis result for SHA-256 abd9e7b3cf677abc…

MALICIOUS

PDF

47.5 KB Created: 2020-07-31 13:12:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 452f0d7c2769b4190823c15d8f375616 SHA-1: f5649a7bfd74b04eb324232d1c9610a1dfe7ded7 SHA-256: abd9e7b3cf677abc8534ca30a7be160b2f3881c6e0afd387cf2e524c1bbcbc93
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, identified as a PDF link farm. One of these links, 'https://ttraff.cc/pify?keyword=vocational+guidance+theories+pdf', points to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Vocational guidance theories pdf', suggesting a lure to trick users into clicking the malicious links.

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=vocational+guidance+theories+pdf In PDF document text
    • http://files.allseasonrider.com/uploads/1/3/1/3/131384136/samagujariraka.pdfIn PDF document text
    • http://files.belmonthypnosis.net/uploads/1/3/1/4/131453592/1021687.pdfIn PDF document text
    • http://files.mountainviewhairsheep.com/uploads/1/3/1/4/131437174/bepitemowe_wapub_gabutiwavaj_fidupopime.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/1/0437/1536/2984/files/66398941346.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0395/9720/files/pavesuzufapilaxozijikusa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3437/0470/files/zotilumulowebub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6795/7658/files/68025855256.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8347/2802/files/72034104090.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8201/4108/files/matuvi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5018/0514/files/kapumot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6354/1917/files/74757448839.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6138/7170/files/77669077978.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0412/5599/files/95503197285.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0127/3760/files/83377862574.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4763/2548/files/16873474370.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2331/9715/files/vazagos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8351/4527/files/betomufurototitonojex.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_off00007c19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C19 5264 bytes
SHA-256: ecf4d84f88812545a3cead290747381ce6a9bb3e198f175a8300e903c2259e1a
font_01_sfnt_off00008de8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DE8 10228 bytes
SHA-256: 3e48e89ce1a0de704ffcbc9d500993b944015f99ec1e91176f82d75f2cc1ec27