Malicious PDF — malware analysis report

Static analysis result for SHA-256 924cd63c9d846c95…

MALICIOUS

PDF

70.0 KB Created: 2020-08-06 19:00:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bd902d5f60b74ed0f9fc2a480bb567fa SHA-1: 3cf8716ae1772e392357fbdfce5722007d66c0b8 SHA-256: 924cd63c9d846c95e89da86ab3703f061a11bff7b9bc9a1e7bb7b41782192266
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL that triggered this heuristic. The presence of numerous external PDF links suggests a link farm or SEO poisoning tactic to distribute 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.com/pify?keyword=francisco+javier+arellano+felix+pdf In PDF document text
    • http://xozes.ptbopathwayoffame.com/uploads/1/3/1/4/131454012/xubivalejor-nezixivuz-morere.pdfIn PDF document text
    • http://roputaxu.appledoreantiques.co.uk/uploads/1/3/1/3/131379730/e7264.pdfIn PDF document text
    • http://files.parsonswoodartistry.com/uploads/1/3/0/7/130775002/vowifipekuw_zenusuvuvinij_duboke.pdfIn PDF document text
    • http://files.prettygoodideas.studio/uploads/1/3/0/7/130775109/c533b7.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/1/0437/6471/1575/files/datibututakabezulogoborug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9747/1656/files/68590787320.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2917/6232/files/adb_backup_app_data.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4341/3407/files/tavumezajozo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3808/7070/files/albumin_physiology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2094/9416/files/38998938224.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7738/5892/files/kexawodurosufoxalegusexiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9291/7924/files/37705382333.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7302/7749/files/58245971812.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3182/1473/files/61576243641.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c734.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC734 5016 bytes
SHA-256: e264712ed2539065f8b539d3ee525ceec5ac0e06f87953703b9c71cf0cf639cf
font_01_sfnt_off0000d84c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD84C 10688 bytes
SHA-256: aa2b3ac34bc490fe56f6114abde872357bf40b5def59bbf1f7174522939471b7
font_02_sfnt_off0000fca7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCA7 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

Open this report in the interactive analyzer, or submit your own file for analysis.