Malicious PDF — malware analysis report

Static analysis result for SHA-256 e15720f128c7df84…

MALICIOUS

PDF

36.5 KB Created: 2020-08-07 14:37:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1bd14ae7fdc14ee264c683ac06934031 SHA-1: 8a3b370426028929e68cf7fbfe80779836d13442 SHA-256: e15720f128c7df84551d60359b9f43b930c57303d7a0500a73876463fad8f7a7
194 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a search result for an academic PDF. The document body and embedded URLs suggest a link farm or SEO poisoning tactic to drive traffic to malicious sites. The primary malicious URL identified is ttraff.cc, which is known for redirecting to further malicious content. The PDF structure and embedded links indicate a social engineering attempt to trick users into visiting a compromised site.

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=inorganic+chemistry+atkins+shriver+pdf In PDF document text
    • http://dokibamis.royaltyriseproductions.com/uploads/1/3/2/6/132681501/kodirotonoga.pdfIn PDF document text
    • http://files.bartonvillagefestival.com/uploads/1/3/1/3/131378993/kebulojagoriwes-vidako-jizem.pdfIn PDF document text
    • http://ganatof.addamsba.com/uploads/1/3/1/4/131408056/3842208.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/1/0435/7976/8995/files/arduino_uno_car_projects.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5109/0077/files/advantages_and_disadvantages_of_action_research_design.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4250/3832/files/momezupabajunozarifu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4899/2930/files/18844750343.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9963/4330/files/79939154379.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7827/1651/files/70129472120.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6196/8025/files/720p_hd_camera_eyewear_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8216/2084/files/nujunulo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3205/1873/files/wafiwodikux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0811/4340/files/1300_math_formulas_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5045/7505/files/sufetasujavi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6286/1730/files/98141160141.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_off00004cc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CC1 5700 bytes
SHA-256: 4ea336f62a669234b745301ee8072e5186c7b8df777eed1a796c1abe55803203
font_01_sfnt_off0000600d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x600D 10732 bytes
SHA-256: 55111cfd53f3fe019a160329a10db1c02fe638e3706a79763adf3fce66447c98

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