Malicious PDF — malware analysis report

Static analysis result for SHA-256 950ffd18b4b41ea1…

MALICIOUS

PDF

45.5 KB Created: 2020-08-12 05:09:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4f42673545830c5134eb7329b6ee5c3e SHA-1: d07fee2d0ca31c4c492a5f728127652d9baeae7c SHA-256: 950ffd18b4b41ea1239542a1d5b58bf1e6a0d737fa00c6ed5f4e1e412f04ccb5
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK indicating a link to `https://ttraff.cc/pify?keyword=post+traumatic+stress+disorder+journal+articles+pdf`. Another critical heuristic, PDF_SEO_LINK_FARM, indicates the document is a link farm, likely designed to attract traffic or distribute malicious content. The document body text, though partially garbled, includes the same search query as the malicious URL, suggesting a lure to disguise the malicious intent. 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.cc/pify?keyword=post+traumatic+stress+disorder+journal+articles+pdf In PDF document text
    • http://files.edgybynatureproducts.com/uploads/1/3/0/7/130740210/nujeku_musaf_dafije_mewobimo.pdfIn PDF document text
    • http://files.finoortiz.com/uploads/1/3/1/4/131453904/5fc3aa1003b3.pdfIn PDF document text
    • http://files.footmadbirmingham.org/uploads/1/3/1/3/131381231/d9ff5332f.pdfIn PDF document text
    • http://files.ironmartialartsonline.com/uploads/1/3/0/8/130813988/8656484.pdfIn PDF document text
    • http://files.williamsanmartin.com/uploads/1/3/1/3/131378993/c58f5416768.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/1/0435/0866/2440/files/medasurubebewuze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0057/5638/files/13078873998.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2658/7549/files/42957239605.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6825/2565/files/66727045450.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7188/8803/files/61446459610.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7926/2623/files/domimajinikemap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8217/7946/files/jorewu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4877/8400/files/1079277101.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sarexomerowomowubufo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0315/8433/files/wajafazapozisopaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0775/2861/files/convert_to_word_apple_mac.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 5

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_off0000740e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x740E 5380 bytes
SHA-256: 9908993d224b789d537533899f8c3c23f7b605dc033cb962811476f4cb98a401
font_01_sfnt_off00008648.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8648 10080 bytes
SHA-256: 94ef001463fff9272c2dd82c07314f4256cbf9147d831ca0f4baed26981c39f9

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