Malicious PDF — malware analysis report

Static analysis result for SHA-256 c56a1fae008c6fe3…

MALICIOUS

PDF

54.0 KB Created: 2020-08-24 05:21:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9a50ec3bf587a5045530f1fec70475c1 SHA-1: 850bd7211e4672580f36fe41a34335db327d0cff SHA-256: c56a1fae008c6fe39323d5fba35eaa2fa5596af9a4d5357802a1d37885f2e5bc
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one pointing to a known malicious redirector. The document body, though heavily obfuscated, appears to contain text related to the URL's keyword, suggesting a lure. The ML classifier strongly flagged this PDF as malicious. The primary attack vector is likely a phishing attempt to redirect the user to 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=ajay+atul+ganpati+songs+list In PDF document text
    • http://wetexulin.livejustwhatever.com/uploads/1/3/0/8/130814328/nudowudived-nelotutu-waxawuvumi.pdfIn PDF document text
    • http://files.jennycrakes.com/uploads/1/3/0/7/130738912/854bd.pdfIn PDF document text
    • http://files.elitesandvolleyball.com/uploads/1/3/1/8/131856627/d3df6b86f3c.pdfIn PDF document text
    • http://gevaz.thesouthernbyrd.com/uploads/1/3/2/7/132740720/jevujej.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8025/3593/files/pepivileguma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3006/8898/files/7683362484.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7997/5590/files/39206030593.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0785/2192/files/zaxemawivew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4488/5912/files/18400357970.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/1725/3542/files/logic_circuit_diagram.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5190/0310/files/46339224375.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6763/7922/files/bug_bounty_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5163/7141/files/biruxipugenegunideboru.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 7

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_off000072be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72BE 5056 bytes
SHA-256: 0e5cf880ca8dc1909cb02fb6b8b8e4f034cf70eb067a163354f2438867093194
font_01_sfnt_off00008414.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8414 14876 bytes
SHA-256: a03b80a5903261a8777d904ca762208123148ac71241080939bd0356ef6645c5
font_02_sfnt_off0000b288.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB288 7112 bytes
SHA-256: fd7128002bae46e669085e720b51420840ef74b3f8b4e2910b97ad42420b693b

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