Malicious PDF — malware analysis report

Static analysis result for SHA-256 e82e42b56852396e…

MALICIOUS

PDF

40.2 KB Created: 2020-08-18 20:56:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f51e99adf1f1041a8d6c6d31ae38c3f3 SHA-1: ee6da5d7125f63ea61ab57f4b63c947710c69a4c SHA-256: e82e42b56852396e1e6865ef2e8e2f751bb7f53da6034dc82933edf90d15f778
194 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and contains multiple embedded links. One critical heuristic identified a link to a known malicious redirector, and another identified a link farm with numerous external PDF links, many hosted on Shopify. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=calendar+indonesia+2019+format+excel', suggesting a lure to potentially unwanted or malicious content.

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=calendar+indonesia+2019+format+excel In PDF document text
    • http://files.coachhousecochins.com/uploads/1/3/0/7/130740065/fadalupilisivex_dirulomukamuvet_vekuwuporumo.pdfIn PDF document text
    • http://files.atousaraissyan.com/uploads/1/3/0/8/130873839/xatikupez.pdfIn PDF document text
    • http://files.serafinaconsulting.com/uploads/1/3/2/8/132814119/katuwixavafik_pojomesiramoros_mefuj.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/1/0433/9869/3013/files/billy_goats_gruff_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8638/0189/files/98370803163.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7124/2391/files/9516211399.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3624/5142/files/pubifipogelelifag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7845/8275/files/oracle_database_12c_administration_workshop_ed_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1720/6946/files/gomejopuped.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9198/3512/files/30985576719.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4686/3005/files/bopagus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4380/5591/files/adobe_xd_assets_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9511/2347/files/relations_internationales_dfinition.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_off00005e49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E49 5624 bytes
SHA-256: 0f510c2b4855a455eabd5cf343dd241eb82496014428711559333048a8d9b78e
font_01_sfnt_off0000714f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x714F 10084 bytes
SHA-256: 0c7522b15478e550c9e38f4118ba1351fd8f7192444ba341720daeb357081138

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