Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0200e55a81b6d18…

MALICIOUS

PDF

47.8 KB Created: 2020-07-29 04:58:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bdba81f3c4a6f9938c0d536d7f37223e SHA-1: 383269d69bcb352d3781f170e245153f0359371f SHA-256: c0200e55a81b6d183808126ea306bb5d75112cff6f9b0aabeec1ed046c12a7e9
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, appears to be a lure related to 'assessing information'. The presence of a large number of external PDF links suggests a link farm or SEO poisoning tactic to distribute malicious content. No scripts were extracted from this sample.

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=definition+of+assessing+information In PDF document text
    • http://files.durablecaster.com.tw/uploads/1/3/1/8/131856279/dedawujuk_zowamemopijifu.pdfIn PDF document text
    • http://files.melbournecarspotters.com/uploads/1/3/0/8/130873820/masemudi-gozew.pdfIn PDF document text
    • http://files.secondhalfathletes.com/uploads/1/3/0/8/130874524/setebefofixog.pdfIn PDF document text
    • http://files.nyssacity.org/uploads/1/3/1/6/131637308/f4e161f9024f418.pdfIn PDF document text
    • http://files.wrenshallab.com/uploads/1/3/0/7/130775735/98432.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/1/0431/2875/0234/files/96858680227.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4211/1650/files/xiwaxezawapubaku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9060/8285/files/30378426764.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1992/7713/files/wivepine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4310/1591/files/46631119165.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3816/9498/files/42975187687.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8052/3678/files/bafovebu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rejukimuvili.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9091/2159/files/jekovegodenovotujuxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3257/5132/files/21840998665.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6153/4111/files/ditajik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4736/0424/files/30106995561.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5597/0464/files/24344859705.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 2

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_off00007f2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F2B 4844 bytes
SHA-256: e4588cc99c490e9117d904fa2c25bedba3f2962eb081afa0abfd52d1004ce6f7
font_01_sfnt_off00008f84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F84 9992 bytes
SHA-256: f9fc747e34441eafa3143103b4d584bb60f02e0f12a1ee4345a49c5a459d3e57

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