Malicious PDF — malware analysis report

Static analysis result for SHA-256 801725168c269035…

MALICIOUS

PDF

39.7 KB Created: 2020-08-16 11:06:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 04ef26f8af45c609bc29665cba610e87 SHA-1: 0cfd7b9537c5e016cb7606078f60adc6b7803216 SHA-256: 801725168c2690359ef4e5a4c66d8f22c44f25c1303a9f69cbdb68e7daf8864a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.cc) that is flagged as malicious. This suggests a link farm or phishing lure designed to drive traffic to malicious sites. The document body, though heavily obfuscated, contains the URL https://ttraff.cc/pify?keyword=apache+kafka+pdf+free, reinforcing the malicious redirector finding. No scripts were extracted, but the overall structure and embedded links indicate a malicious intent to redirect users.

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=apache+kafka+pdf+free In PDF document text
    • http://files.turkeycreekretrievers.com/uploads/1/3/0/7/130775387/metopoxafekova-jukilekoseliput-vujemaga.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/1/0433/4583/8239/files/mathematics_grade_12_textbooks.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8566/8255/files/gizudodebalofomimirofi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5631/7091/files/75924300563.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nipexaledova.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2567/7982/files/60804182788.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7839/3762/files/disturbed_indestructible_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/1587/7287/files/40991051608.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0670/5312/files/27791858863.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4145/5254/files/adjetivos_posesivos_y_pronombres_posesivos_en_ingles_ejercicios.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005de1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DE1 5088 bytes
SHA-256: 68ad2de82ff5b9b1073d434fe10a8458e398408e0f30f4e6dfa924900721650a
font_01_sfnt_off00006f23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F23 10472 bytes
SHA-256: 1bde7e00090d441d9994b238334fa367d1e9c534b3db34a3a283f2d256b1ebc3

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