Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd34a9d3f844f43f…

MALICIOUS

PDF

40.7 KB Created: 2020-08-16 16:24:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6f6ca2cfb1d75a2b5ab11f79428c6840 SHA-1: 73d39934c1e949d2f782c4586ef84ce45378512e SHA-256: cd34a9d3f844f43f52064a0d7b33a065e0bee54f6bae9fadf10a17727f15a206
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=intruder+netflix+parents+guide'. This indicates a social engineering lure designed to redirect users to malicious infrastructure. The document also exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on cdn.shopify.com, further supporting the malicious intent of driving traffic to potentially harmful sites.

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=intruder+netflix+parents+guide In PDF document text
    • http://files.ogreartwork.com/uploads/1/3/0/7/130740193/8384541.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/1/0437/1483/8679/files/tijinodewuru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4982/9023/files/4107805856.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4923/8171/files/backstepping_control_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6961/2966/files/encyclopedia_of_buddhism_malalasekera.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5136/8104/files/video_editing_software_windows_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/0166/9800/files/vocabulary_for_ielts_intermediate_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7652/7014/files/devulirelisufomafo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5269/3669/files/bukojusof.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 1

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_off000062a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62A0 5212 bytes
SHA-256: d7dc1fc46fa69e04c7ea3ffaac0a1b045e7c27fc3557293dff4cfcbbe4db5a4b
font_01_sfnt_off00007468.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7468 9980 bytes
SHA-256: a28ab8c7f31c5c53455a69e9adb386f2859e91af4b92e384edd8de58ec86a023

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