Malicious PDF — malware analysis report

Static analysis result for SHA-256 52b8fe754683d0ea…

MALICIOUS

PDF

41.1 KB Created: 2020-08-23 15:30:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 595e0e9c329c51d3fe0a6ee35403fcdd SHA-1: 3b326456c7f945bd8b82f4d88a93b2fdaca3c04a SHA-256: 52b8fe754683d0ea2b3f31537083b085db3e5fc2de5b556c83adf29bd09d4d60
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to Shopify domains and one critical link to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains the URL https://ttraff.com/pify?keyword=corpus+linguistics+book+pdf, suggesting a lure to download a PDF. This indicates the primary goal is to redirect the user to malicious infrastructure.

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.com/pify?keyword=corpus+linguistics+book+pdf In PDF document text
    • http://files.strikesforkidsseattle.com/uploads/1/3/1/0/131070849/sizapobuwep.pdfIn PDF document text
    • http://files.foodsfourthought.com/uploads/1/3/0/8/130874110/4cd601bc4e.pdfIn PDF document text
    • http://bokekuka.brianriordanmusic.com/uploads/1/3/0/7/130739278/tawomuwa.pdfIn PDF document text
    • http://files.visiontreecenter.org/uploads/1/3/0/7/130739779/8aa61fdac8864b1.pdfIn PDF document text
    • http://files.whatissparta.com/uploads/1/3/1/6/131606854/wijota_lomuto_bexerugowejon.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/1/0434/7127/4146/files/stardew_valley_fishing_guide_bundle.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/9714/8830/files/fumogilevava.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6529/5526/files/83550670159.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4504/4892/files/11986316565.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1960/6936/files/fomimerunuwaxamif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7732/8286/files/gotimi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0183/8757/files/kamufakifovikovuwabanowe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/9296/3484/files/6149533407.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0314/0506/files/29911056363.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6956/3290/files/dagubagom.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_off000061c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61C4 5220 bytes
SHA-256: fcc51b922c80e04eba76cfdb47b845018ddb21c5efd9bf472f1422f94a512751
font_01_sfnt_off00007392.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7392 10672 bytes
SHA-256: acbc0347348050ffe13643ed3d15f94ee76fdae625ba124e36e9764e0e7b9605

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