Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d57009b3375ee96…

MALICIOUS

PDF

42.0 KB Created: 2020-08-28 13:37:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e1faec75570f9891edf1c839d46fa6c8 SHA-1: f0fce8d0cf4f3a2998daa74cf081f3566546645b SHA-256: 1d57009b3375ee96b324542ee379400b17c948a2b42e8e332c810295413ad4f1
194 Risk Score

Malware Insights

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

The PDF file was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The document body contains obfuscated text and numerous embedded URLs, including a primary malicious redirector. This indicates the document's purpose is to lure users to potentially harmful sites, likely for phishing or malware delivery.

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=battletech+campaign+operations+pdf+o In PDF document text
    • http://situviwu.simpsonchorus.com/uploads/1/3/1/0/131070161/dagabo-gadixazito-pebujapoxob-xabumaxivu.pdfIn PDF document text
    • http://fonumizi.ruthmurraywebster.com/uploads/1/3/1/3/131379326/5568643.pdfIn PDF document text
    • http://files.terrymurphywrites.com/uploads/1/3/1/6/131636719/1065891.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/1/0438/5934/5573/files/monstrosities_dnd_5e.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/9697/7051/files/sea_of_thieves_pc_game_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4405/1864/files/12724883084.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2071/2098/files/kalazowewugeluvojojitubef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2891/4087/files/74942918730.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5884/6109/files/19677201421.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4572/5094/files/capitalismo_industrial_y_financiero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0581/1608/files/fisalipo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5211/2808/files/vavivunedepomowunu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4686/3005/files/nerotowusunegumapex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/9661/6615/files/wevazi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6211/7030/files/zumutawuworujaborabowata.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 4

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_off000065eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65EB 5616 bytes
SHA-256: 7c71a39d1a99bcbffc2da424714bca0d1f5b6b47ba96a18c371529f8246d7770
font_01_sfnt_off000078dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78DC 10132 bytes
SHA-256: df6e8882b6c6268406df801abf0ead90712e1a724f30b3977497c2f9579bb0de

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