Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8e3daaf1605d8da…

MALICIOUS

PDF

42.9 KB Created: 2020-08-16 19:22:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bde42a9f7f9702380d8a37d9696e86b5 SHA-1: e100fd3aa72fe8c431463ab02d9dd107a60079ee SHA-256: d8e3daaf1605d8da8e2dcde6061c36984c17956ddab33a3f302e52c5ff737f63
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.ru, disguised as a download for 'Cheat engine android new version'. This is further supported by the PDF_SEO_LINK_FARM heuristic, indicating a large number of outbound links, likely for SEO manipulation or to distribute malicious content. The ML classifier also strongly flagged this PDF as malicious. The document body contains the malicious URL and a benign-looking PDF link, likely as part of a link farm.

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.ru/pify?keyword=cheat+engine+android+new+version In PDF document text
    • http://files.lathamhomesanitation.com/uploads/1/3/0/7/130739303/6574550.pdfIn PDF document text
    • http://lijemitid.nmdnyi.com/uploads/1/3/1/3/131398560/nujibotika.pdfIn PDF document text
    • http://files.konspiracycosplay.com/uploads/1/3/1/3/131398366/181d20e0f347.pdfIn PDF document text
    • http://files.academyofequestrianarts.com/uploads/1/3/1/3/131380627/b801cb610221da3.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/1/0434/0364/0999/files/12949394763.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8233/3851/files/56332590567.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1997/6350/files/missing_angle_of_a_triangle_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9861/9557/files/sataxobosewutobepoje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/4312/1302/files/jspdf_autotable_column_styles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0657/4238/files/nixopazetebuled.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5548/9948/files/rikijituwipebesizog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xazome.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8947/7273/files/91997574150.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1206/3391/files/core_java_tutorial_with_examples_pdf.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_off00006a5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A5F 5112 bytes
SHA-256: 794a3a299b8559cd658c4339e768099fff7cf81de6244192dd11c445c69c5810
font_01_sfnt_off00007bce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BCE 10340 bytes
SHA-256: bc8d2a727e03358c754dcd350991d6b4ddd718abe460721ab805b422db833baa

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