Malicious PDF — malware analysis report

Static analysis result for SHA-256 b52b179b7cd93550…

MALICIOUS

PDF

63.9 KB Created: 2020-08-21 02:28:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 10a31466cb9c67e778e3f972c9ddff11 SHA-1: 38b99d2c64af44c33293fe32a1f232367ec51ed2 SHA-256: b52b179b7cd935505a38d17b77e4dbdada61abb8ae3d90858595df41464f85c1
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=black+eyed+peas+album+songs'. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to redirect users to malicious sites. No scripts were extracted from this sample.

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=black+eyed+peas+album+songs In PDF document text
    • http://files.rameshgoel-krishna.net/uploads/1/3/1/6/131606467/c7dc7e01.pdfIn PDF document text
    • http://vufud.kmid.com.au/uploads/1/3/1/6/131606156/2150784.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3561/3594/files/37787798230.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3266/4481/files/intercessory_prayer_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3564/0487/files/17361067529.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1991/0811/files/vejobaxivifoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5257/1555/files/25635794240.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3478/5430/files/nebosimudadupa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4293/9814/files/pixowulinavedavefumefeso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7142/3135/files/80783798849.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7170/9092/files/nivefejavipuwo.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 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ae6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE6E 5408 bytes
SHA-256: 7363374b0fca0a00fca2dc67c4db90fb04d9bf376855d25aa2b362c9ecbb76d4
font_01_sfnt_off0000c0b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC0B3 10592 bytes
SHA-256: dfa89c123bce123c2d6bb3fd8547933d79deb77ee405028d07ccc4e6b395f85b
font_02_sfnt_off0000e4f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4F1 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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