Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2913dd501ec2303…

MALICIOUS

PDF

43.5 KB Created: 2020-08-22 15:38:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 51d6871a71a2aa34d89148cc489d18b7 SHA-1: 2e768c33592ca6de80a2db1768b1fcf46cf19ea6 SHA-256: c2913dd501ec2303308a24c33963c7583ca4dcb66761b9ceddf8d346c4b6f46b
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with one pointing to a known malicious redirector. The heuristic firings indicate this is a PDF link farm, likely used for SEO manipulation or to distribute further malicious content. The document body itself contains garbled text and a URL that matches the redirector, suggesting the primary purpose is to lure users to malicious sites.

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=africanism+all+stars+love+is+the+answer In PDF document text
    • http://files.purtonyouth.com/uploads/1/3/0/8/130873851/6975023.pdfIn PDF document text
    • http://files.bespoke-papers.com/uploads/1/3/1/4/131453805/porigede_purivijaf_jotafulib_kuviwepisexu.pdfIn PDF document text
    • http://files.wbcphoto-art.com/uploads/1/3/1/3/131379456/5cff67188.pdfIn PDF document text
    • http://zobobile.usanaapconvention.com/uploads/1/3/1/3/131379485/nuzetukelumudig_niwun.pdfIn PDF document text
    • http://files.bodyandmindtraining.com/uploads/1/3/1/0/131070971/zavomu.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/1/0429/1428/3686/files/dark_souls_2_cheat_engine_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/1289/1297/files/warefifi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9773/3787/files/free_ethiopian_short_fiction_books_in_amharic.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7107/7542/files/47732007830.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/garul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3477/1610/files/9814753995.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3378/6528/files/fuzutasamabowef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7124/2391/files/vowesu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8865/0142/files/51053507415.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1571/6519/files/73846981669.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0826/1287/files/zewafadafobedanu.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 5

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_off000053d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53D3 5052 bytes
SHA-256: 93d7e63df737ec14fec6214c03ffb108318ea146eb01fa782f6a9db271c8d9c8
font_01_sfnt_off000064d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64D1 15028 bytes
SHA-256: da930f319d728d464dc8d07163ea73e913f4e3da067baa7911d7a35925d07c79
font_02_sfnt_off000092fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92FB 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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