Malicious PDF — malware analysis report

Static analysis result for SHA-256 48187756fc9be8fd…

MALICIOUS

PDF

37.8 KB Created: 2020-08-15 13:51:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2f36855fde0353888224c6d019495b38 SHA-1: 0ed03a34e38dc69f2b17e71920022f319fff68a6 SHA-256: 48187756fc9be8fd5551b671b649c8fe38dc47ddc8a58a246b9cf86afd044e6b
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a link farm hosted on cdn.shopify.com, which ultimately redirects to a malicious URL (https://ttraff.cc/wb?keyword=dictionar%20roman%20suedez%20pdf). This indicates a phishing or scam attempt designed to redirect users to malicious infrastructure. The ML classifier strongly supports the malicious nature of this PDF.

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/wb?keyword=dictionar%20roman%20suedez%20pdf In PDF document text
    • http://xirininek.pandos.org/uploads/1/3/1/6/131606490/334971.pdfIn PDF document text
    • http://files.belinktrans.info/uploads/1/3/1/4/131454984/libidigojosi.pdfIn PDF document text
    • http://files.osspto.org/uploads/1/3/2/8/132815748/migujinegu.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/1/0429/1464/4127/files/78999800264.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7157/6993/files/vudapilizirolurus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3519/6566/files/21419037984.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5293/4044/files/51391030536.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6416/4506/files/kimesafuto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8833/0396/files/24719304389.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/62114329075.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2430/8630/files/lopedanufananomiparu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4898/3959/files/design_drawing_francis_ching.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0819/6767/files/western_union_hacks.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7302/7749/files/48604726455.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/1892/2653/files/80349400957.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8517/5713/files/82780472107.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 6

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_off00005339.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5339 5316 bytes
SHA-256: 9157d7bb9a2f46d81b1d427ff51c0eeec974aea08b7cc9beede1d04cc768b770
font_01_sfnt_off00006541.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6541 11004 bytes
SHA-256: 1feb49ab8b4206a3452c5529e2c90fb2262ebe9fb68ed6ea42151e1b25b46dbb

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