Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e5a74c5ffb5385b…

MALICIOUS

PDF

51.0 KB Created: 2020-08-20 04:42:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: da4688f7e07bbccee2186a22e508e086 SHA-1: 1321c1f73ac85fd37aec83ee93a6311311e612d1 SHA-256: 7e5a74c5ffb5385b43fbb017baa08cd542a26bb4e3e35824f47737876b87f233
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with a critical heuristic firing indicating it redirects to known malicious infrastructure. The document body, though heavily obfuscated, contains a URL that matches the redirector found in the heuristics. This suggests the PDF is designed to trick users into visiting a malicious site, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=diabetes+australia+management+guidelines In PDF document text
    • http://korenatat.perciakwedding.com/uploads/1/3/1/3/131383314/mabap_suwurul.pdfIn PDF document text
    • http://files.reignbowco.com/uploads/1/3/1/6/131637562/xajotazaweb_liwitozu_wezetop_semikigikuwa.pdfIn PDF document text
    • http://files.sportinghackney.co.uk/uploads/1/3/1/4/131454143/mibisiv.pdfIn PDF document text
    • http://gifaretav.cozybeirut.com/uploads/1/3/0/7/130739561/feab2.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/1/0429/9027/2675/files/lejefiligeme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/9865/6158/files/rib_fracture_deformity.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3208/3612/files/27024876070.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1873/2191/files/the_enormous_crocodile_story_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2076/0741/files/42595158229.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2115/3957/files/atomic_absorption_spectroscopy_principle.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1916/6105/files/21082934365.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2985/5393/files/beginner_workout_routine_at_home.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9617/8845/files/install_localhost_certificate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1423/3000/files/lovely_piano_sheet_music_easy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4211/1650/files/vapumuwibulutewuluvi.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 2

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_off000088fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88FA 5284 bytes
SHA-256: 6ad8d3a15cbd1b13e97ab6026b67a0f9ffc199372346f075c9b4291d0a6c6546
font_01_sfnt_off00009ace.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9ACE 10616 bytes
SHA-256: e490b6ee1abfbe13370ea255277ff489974c16ebd3bd477c22d9ae28e19c8cff

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