Malicious PDF — malware analysis report

Static analysis result for SHA-256 10e7820a2f140c6c…

MALICIOUS

PDF

54.8 KB Created: 2020-08-01 17:30:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 62e87d45dea951a129533deb23f58df8 SHA-1: 33b5cce9397bafbb6fa798bdf14fe26de973a0bc SHA-256: 10e7820a2f140c6c6a2790a14b1677711caa16660500c2037c6db7c8e61b6a3f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) which is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL, suggesting a phishing or scam attempt disguised as a download lure. The ML classifier also strongly indicated maliciousness.

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=sony+hbh+52 In PDF document text
    • http://files.classicaltocontemporary.com/uploads/1/3/1/3/131380985/bafelefaf.pdfIn PDF document text
    • http://files.byobeez.org/uploads/1/3/0/7/130775023/lepawogoweveguj_jorozen_popejewisidadu.pdfIn PDF document text
    • http://files.pastorbobnlnh.com/uploads/1/3/2/7/132710491/rizobanuku.pdfIn PDF document text
    • http://files.development12508.com/uploads/1/3/1/6/131607522/vipine.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/1/0431/8606/1480/files/perorazuligivasotet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5127/0823/files/volexoza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0654/8377/files/free_website_hosting_2015.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4216/8218/files/37947439254.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5211/2803/files/nidutobirajetijen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9490/7810/files/92452709066.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/38608120386.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7433/0517/files/dejusaduvovigut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vemuvuferakodumi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6965/1606/files/tadawi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8494/8380/files/nozaxegisiwafabonixajukew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3708/2271/files/kinolexerebitoletemonixe.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 8

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_off00008d8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D8F 4856 bytes
SHA-256: b3a95b37fdced5f21919047005470208e09a53cd89e16db023ac5db36a682f88
font_01_sfnt_off00009e29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E29 15832 bytes
SHA-256: e4462a0cb96069cdd713588f6faeb2dd4c5adde4de8dbe7dfd145a2abd67da18

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