Malicious PDF — malware analysis report

Static analysis result for SHA-256 d83f84f9f621bf14…

MALICIOUS

PDF

43.8 KB Created: 2020-08-06 23:28:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 15ee8dc9f69cd8723d323141aa7e68ef SHA-1: 443ce742b5bde1511b3d94c1d92e2700b3bff025 SHA-256: d83f84f9f621bf14ce175f3560276440f1d904f137c6b4a8508f19840b3c1518
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is designed to lead users to potentially harmful content. The document body, though heavily obfuscated, contains text related to 'Ielts speaking cue card topics 2020 with answers pdf' and the malicious URL itself, suggesting a lure. The PDF also hosts a large number of external links, many pointing to Shopify domains, which is characteristic of SEO link farms used to distribute malicious content. 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.com/pify?keyword=ielts+speaking+cue+card+topics+2020+with+answers+pdf In PDF document text
    • http://naxozos.nerissalee.com/uploads/1/3/1/3/131379246/69c8783bbe.pdfIn PDF document text
    • http://files.corinewood-donnelly.com/uploads/1/3/0/9/130969772/nopopobir.pdfIn PDF document text
    • http://files.thevirtuousroad.com/uploads/1/3/1/4/131453823/jinomolefigenisi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8267/8433/files/26341916411.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4827/9957/files/nasamoxoba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/76102764406.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2484/8795/files/7795592159.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7824/5781/files/88729294968.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4916/4698/files/23659242768.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7650/9080/files/mapibijito.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0755/7283/files/98584431156.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7066/0508/files/xifawupuduzoradutafir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1969/7310/files/the_executioner_s_song_movie.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 4

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_off00005e84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E84 5664 bytes
SHA-256: fbbd72f1a127d42510ce78c2ed8b30b1371ebd2ced2947f183d36461d6f4229b
font_01_sfnt_off000071d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71D2 10012 bytes
SHA-256: 0bea6be356a0dddb9d11e195c072229f17dc6de974540cf211837d9f9a3fd637
font_02_sfnt_off00009421.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9421 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

Open this report in the interactive analyzer, or submit your own file for analysis.