Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca41281967d0f0ba…

MALICIOUS

PDF

62.1 KB Created: 2020-08-06 19:05:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 43bfbcf811dff6e059f9be45c2207579 SHA-1: 03e08acee7fa9e16713a69f32d3a264673496d24 SHA-256: ca41281967d0f0ba04c801fd3582d09474f54303baea2e309cecd20e7e29e1d1
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic identifying a malicious redirector. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector identified by heuristics. This suggests the primary purpose is to redirect the user to a malicious site, likely for phishing or malware delivery.

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=tenoxicam+20+mg+bula+pdf In PDF document text
    • http://files.heritageelementarypto.org/uploads/1/3/0/7/130775619/9048712.pdfIn PDF document text
    • http://files.worldconnect.apg-ga.com/uploads/1/3/2/8/132815359/tevazurigejevawalizu.pdfIn PDF document text
    • http://files.michaeljaigrant.com/uploads/1/3/0/7/130739393/8428098.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/1/0434/6377/0274/files/duvopumutewerim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7922/8837/files/voripewotu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8786/9592/files/39524174914.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5481/5640/files/dejemojiridizinose.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9166/5830/files/marathi_barakhadi_file.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3728/6815/files/bawimejegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5245/7369/files/eldar_codex_6th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0965/4436/files/minecraft_enchantment_mending.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1871/4264/files/46020589831.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2979/8818/files/dainik_bhaskar_epaper_hisar_today.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fuwemosuwizukuxitakalav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2958/4293/files/xokuzuwiku.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_off0000b530.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB530 5632 bytes
SHA-256: 33190b3d38b54f514d39f858c769433f55122aa1913ae6fa8f288027c91a5bad
font_01_sfnt_off0000c84f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC84F 10456 bytes
SHA-256: e68368cff0fa986d5415f2fc0757ae5a7f2a1eec0ab18af88ccaf5e01ea55e59

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