Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9318048be79cc82…

MALICIOUS

PDF

43.2 KB Created: 2020-08-20 05:43:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 02ecc249038dd841023f1c88c88bc200 SHA-1: d9a59e14c4dd2c88f407c129c8fc84ad2499a018 SHA-256: a9318048be79cc826cac7d60b09f269a9a7d09fe9b19408032c8b956401118f5
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link farm and a specific malicious redirector URL, indicating a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains the text 'Medical report for nysc camp' and the malicious URL, suggesting a lure to trick users into clicking the link. The presence of numerous external PDF links points to a SEO poisoning or link farm strategy to distribute malicious content.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.ru/pify?keyword=medical+report+for+nysc+camp In PDF document text
    • http://files.jahc2020.org/uploads/1/3/0/7/130739239/8188241.pdfIn PDF document text
    • http://wawot.timothyrogersphotography.com/uploads/1/3/1/8/131856023/vewejurefivid.pdfIn PDF document text
    • http://puditefa.lourrylegarde.com/uploads/1/3/1/6/131637814/a6728f7494.pdfIn PDF document text
    • http://files.shadysideofthetracks.com/uploads/1/3/1/4/131406762/9744250.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/1/0431/6649/8965/files/kavoginowazojim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4795/0248/files/tasuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1579/7917/files/12178754428.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4475/5866/files/new_bollywood_full_movies_2018_hdfriday.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7773/0464/files/rational_and_irrational_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8785/4749/files/77465961778.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3141/9287/files/outdoor_furniture_autocad_blocks_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5593/8725/files/bifonovupasewikinugexudiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1256/1819/files/john_paul_jackson_dreams.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7877/9029/files/nowezaror.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6495/8879/files/writing_about_art_6th_edition.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_off00006b59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B59 5408 bytes
SHA-256: 5fc64c42a4d69bf116a1bc4df1949427ddd70d46ed71ff47b0e3a1b7f4a96253
font_01_sfnt_off00007daf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DAF 10156 bytes
SHA-256: 1106ec46913a2a1206ef63d361d8ea20d4d6328e1922ec1c07db95d6f9f5f102

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