Malicious PDF — malware analysis report

Static analysis result for SHA-256 b41c72028c5eb4b3…

MALICIOUS

PDF

42.0 KB Created: 2020-08-07 23:14:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e60404723e3a769739757326eb869331 SHA-1: 33a37ff49bdee23505282ceac48c3f13d419efc8 SHA-256: b41c72028c5eb4b3d4a037fa4dbd4a88341cdc8643c348e068775a245388d5ad
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, and one critical link to a known malicious redirector at ttraff.ru. The document body, though heavily obfuscated, contains references to the malicious URL and potentially misleading content related to 'Adobe indesign cs3 tutorial pdf'. This suggests a social engineering tactic to drive traffic 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.ru/pify?keyword=adobe+indesign+cs3+tutorial+pdf In PDF document text
    • http://jodojel.wathistory.com/uploads/1/3/1/3/131381428/4566471.pdfIn PDF document text
    • http://files.redesignforwholefamilies.com/uploads/1/3/1/8/131857193/jowudakavesof-rusodisoton-zofokizubolas.pdfIn PDF document text
    • http://files.tcmphoto.com/uploads/1/3/2/7/132740873/regaputukem-dopura-fofojapozigu-narekaxapipiwe.pdfIn PDF document text
    • http://numag.ninaperezreed.com/uploads/1/3/1/0/131070786/418368.pdfIn PDF document text
    • http://files.birthrootmidwifery.net/uploads/1/3/1/3/131380741/24ee5a.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/1/0430/6891/5863/files/worusesulowafot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2741/4696/files/ode_to_my_car.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4481/2438/files/92622114766.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1097/3083/files/348376191.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0145/4500/files/vakifadividigasubita.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3070/8375/files/lutisedopagewekeli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0741/7253/files/13465112327.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1752/7715/files/vuxajakotuzakojilakoladi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/32296476761.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7905/5000/files/kuravuritosugujivifudovu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7404/4579/files/duxur.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_off00006561.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6561 5616 bytes
SHA-256: 8b03504be7d390471c1dddbbbc1568d6b04c2071cda175e393c605150b0b1e42
font_01_sfnt_off00007888.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7888 10052 bytes
SHA-256: 8284a42560615367cab31c1f5693c520af80cde68324408b4796dc364fc4a7c7

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