Malicious PDF — malware analysis report

Static analysis result for SHA-256 49acbc47bdfdaa34…

MALICIOUS

PDF

43.7 KB Created: 2020-08-19 12:32:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 14abf22f50f93b6dc085e75419a56ff8 SHA-1: cc6a4a5f8fa6dec2ffdf1a200ecdf875bf8dfff5 SHA-256: 49acbc47bdfdaa34e3ba07d5ab90d1958bf3c73f1e79ca3af3f87e686903b3ea
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, including one pointing to a known malicious redirector at 'ttraff.com'. The document body, though partially corrupted, suggests a lure related to 'dermatitis herpetiformis treatment guidelines'. The ML classifier strongly indicated maliciousness, and the presence of a link farm further supports a malicious intent, likely for phishing or malware distribution.

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=dermatitis+herpetiformis+treatment+guidelines In PDF document text
    • http://files.iowacivilwarhistory.com/uploads/1/3/1/8/131858916/d16e1b81041b53.pdfIn PDF document text
    • http://files.inthepinesboutique.com/uploads/1/3/1/6/131606901/kevekavikegiget.pdfIn PDF document text
    • http://files.ricrna.com/uploads/1/3/2/6/132681690/f5ce9ef.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/1/0437/4292/0869/files/92412034599.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3120/6808/files/ardeshir_godrej_biography.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2466/2173/files/mappa_budapest_centro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4287/1208/files/cardiac_cycle_physiology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3706/4354/files/wijipami.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6354/1917/files/xarepima.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9186/8310/files/85944428784.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/2855/0556/files/86165013330.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3888/3485/files/pennies_nickels_dimes_and_quarters_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7177/4615/files/46512664852.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 3

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_off00006c7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C7D 5456 bytes
SHA-256: 334f20ad26fb2bdaa16e1f21e19dad122674125f94da32b77aeec019f09a9ae8
font_01_sfnt_off00007ee6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EE6 10144 bytes
SHA-256: a4bd24aba3923510f5924bfc815a2e0abc04563cfc2d71db1b9608ba5449438f

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