Malicious PDF — malware analysis report

Static analysis result for SHA-256 10fd777ef66343ce…

MALICIOUS

PDF

45.6 KB Created: 2020-08-13 00:46:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5d77092e0e029c79fc2de8370179b25f SHA-1: 49dae1426885156476710201d70e0556d90add74 SHA-256: 10fd777ef66343ced5ef320aab04bb4199e645416047e8b24969d033e0feb044
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) which is flagged as malicious. The document body, though heavily obfuscated, includes the same malicious URL, suggesting an attempt to trick users into visiting a potentially harmful site. The presence of a large number of external PDF links, including benign ones, indicates a link farm strategy to improve SEO for the malicious redirector.

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=ostrich+farming+in+nigeria+pdf In PDF document text
    • http://files.andyjohnsonpsychlab.com/uploads/1/3/0/7/130740213/kovoxug-kezuzunesa.pdfIn PDF document text
    • http://files.zionlutheranclark.com/uploads/1/3/1/4/131482886/kewuverogupegozuluj.pdfIn PDF document text
    • http://sirisojux.madisoncountycc.com/uploads/1/3/1/4/131437792/notowa.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/1/0431/8982/9800/files/denivisujogoveriwekene.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0727/8247/files/takajasebulo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6829/3287/files/bachianas_brasileiras_no_5_guitar_voice.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8290/6789/files/9760858004.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2381/0203/files/64765484660.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/7367/0037/files/a_league_fixtures_2020_20.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7680/5023/files/78326242337.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/denikiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3258/2056/files/71591942586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3786/7687/files/rumazexavexi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3391/8616/files/favezokuwigovezamizewasak.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000676c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x676C 5240 bytes
SHA-256: cfddae3e51e265fe3014e24d77c347a61cc6908f236dead14bb89dd2886b1c68
font_01_sfnt_off00007910.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7910 10084 bytes
SHA-256: 716fe89c04e274596b70edf15b75e6fc6b0b4662525b9e6d3efecb52a759a5aa
font_02_sfnt_off00009b6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B6F 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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