Malicious PDF — malware analysis report

Static analysis result for SHA-256 be555b20abbe7d69…

MALICIOUS

PDF

52.1 KB Created: 2020-07-27 13:21:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a38591ac5e968a0fed12346139885784 SHA-1: b721da3ee6a3d6fad3094da15720e69820b5cdaf SHA-256: be555b20abbe7d695899a22276be2737f93051fa252dd8e807036508720d3372
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits a PDF link farm heuristic, indicating a large number of external PDF links, with one pointing to 'cdn.shopify.com'. The ML classifier also flagged this PDF with high confidence. The document body text mentions 'water leakage test report', suggesting a lure to entice users to click on the embedded links.

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=water+leakage+test+report In PDF document text
    • http://files.dawsonfoundation.org/uploads/1/3/1/0/131071137/risotuligiroseris.pdfIn PDF document text
    • http://files.veinclinicmb.com/uploads/1/3/1/8/131857679/xekabafi_kamotipevilum.pdfIn PDF document text
    • http://files.andrewbgeorge.com/uploads/1/3/1/4/131437119/3099874.pdfIn PDF document text
    • http://files.somersetcountyfarmersmarket.com/uploads/1/3/1/1/131164211/lonajijabi.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/1/0432/2767/6829/files/mobenukineruwenizibak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/50878135704.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6987/5111/files/72932011978.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2318/7616/files/35589275061.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9848/9503/files/46544296622.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1144/8729/files/womub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0094/7103/files/37560643803.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1425/7815/files/lened.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0673/0144/files/86905907821.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3696/7063/files/55759315534.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8405/3669/files/vemomikabolitonorid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1573/2376/files/91694150933.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_off0000914a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x914A 4696 bytes
SHA-256: 04499f4ca051427d04ff5aeb6de0ad1efbb932fb65cd4fa155c09e7ffdf04e5f
font_01_sfnt_off0000a169.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA169 9888 bytes
SHA-256: b8d91dd03bf68329ad5121892b9388768da6a75ca1b6f3854a5af5e9bb6f49cb

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