Malicious PDF — malware analysis report

Static analysis result for SHA-256 b15fdfc006457456…

MALICIOUS

PDF

44.5 KB Created: 2020-07-31 04:54:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 261380f7c21ba98c601827dd66702859 SHA-1: a4d21d65dabec3f8b78e9ca5043587263211eae7 SHA-256: b15fdfc0064574567af3ac9cf9402f39073284793b5c1bfa446c71afdee6fe01
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, appears to be related to 'ATM security', suggesting a lure to a phishing or malware download page. The presence of a link farm further supports the malicious intent of directing users to external, potentially harmful, 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.cc/pify?keyword=atm+security+using+eye+and+facial+recognition+system+pdf In PDF document text
    • http://files.calmundertension.com/uploads/1/3/0/7/130775784/7077d345fac401c.pdfIn PDF document text
    • http://files.ayrenmartinphotography.com/uploads/1/3/1/6/131607683/5156827.pdfIn PDF document text
    • http://files.clintonpahistory.org/uploads/1/3/1/3/131384771/sukuduguge.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/1/0431/6076/4576/files/tanugosupevawenonevaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3264/0674/files/fimebazorodek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5783/9254/files/74847247770.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8642/9861/files/99687857523.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2853/6734/files/29883959297.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/sijupazofejawema.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4513/3207/files/fugajalovefevawiropubezes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0436/1884/files/8406993040.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6623/7852/files/25272328115.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8799/5807/files/xozez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0691/0876/files/sujisamulife.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xazijejizamoketabuguta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9005/1221/files/65891767271.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2037/6474/files/ditazu.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_off00006f96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F96 5448 bytes
SHA-256: bba4784ee5bdb759b3d4ad3bac1875f522c86fba23d8e9a63c5b295b79e87e5f
font_01_sfnt_off0000820d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x820D 10032 bytes
SHA-256: 1584265acac225d2ac94d34ca53ab5e1fee2f4f22a53249100b0bf3ff22771e7

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