Malicious PDF — malware analysis report

Static analysis result for SHA-256 871d04df2226f840…

MALICIOUS

PDF

48.6 KB Created: 2020-08-24 05:03:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c2e0ec4a13d4f9aec4dd3a194d193a05 SHA-1: 56afe030700dbbd34ea48e63106d107006f212a6 SHA-256: 871d04df2226f840d906ae0fcaa1dba479df395e9cea7ece9e330725f17ac043
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links, including one to a known malicious redirector, ttraff.com. This redirector is likely used to obscure the final destination of the malicious payload. The document body and embedded links suggest a lure for downloading a 'manual', which is a common tactic 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=smooth+q+stabilizer+manual In PDF document text
    • http://files.susanscharfman.com/uploads/1/3/2/3/132303270/vikogiso-bobiwepa-mizadogosugurex.pdfIn PDF document text
    • http://vudiramo.nervouscurtains.com/uploads/1/3/1/0/131070420/8aa68b1991d5f.pdfIn PDF document text
    • http://files.ilenebealfoundation.org/uploads/1/3/1/4/131407802/vomezalowexon-benepulerajo-poxesuxi-tumed.pdfIn PDF document text
    • http://files.normsphotoblog.com/uploads/1/3/0/7/130740522/5429351.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/1/0434/3640/8982/files/55105082879.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3331/1897/files/80634194044.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7888/5280/files/94520162698.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1612/5590/files/buvaloki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9302/4151/files/pebiniwijoxiwilusurax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1097/2056/files/76201414615.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6067/2165/files/pulilamekupeniwisefuribu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4790/2623/files/falivamoxisipifif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4315/8166/files/dusovolu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8762/5369/files/pearl_necklace_meme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/2021/6476/files/41895350628.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/0410/0514/files/5157406348.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 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006b1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B1E 5968 bytes
SHA-256: 7cf4a60fbe875754af849cc47a8f08e0a201c44cf1ff2c7da015e66b3dd12ace
font_01_sfnt_off00007f98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F98 5344 bytes
SHA-256: 209a8dc8cd4bf04a6450c1ce648d8bfdc5399c54c7f52293dbd286da06b20ddb
font_02_sfnt_off000091a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91A7 10412 bytes
SHA-256: 73d5c3e85efcb341cd5e005b9f97fcc0e34a4fb2bbc0d99eddd93251d56a3d51

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