Malicious PDF — malware analysis report

Static analysis result for SHA-256 cdafbae96c33f19c…

MALICIOUS

PDF

60.0 KB Created: 2020-08-28 01:43:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a0195534921dcac6857cecf09adc65a3 SHA-1: 0c8338b811da12e7e0be25940ba7bb5c4aadfac1 SHA-256: cdafbae96c33f19c6ad0e6913829d0166e17bcf8db9d6882059f0a4ab071f10b
194 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains numerous embedded links. One critical heuristic identified a PDF link to known malicious redirector infrastructure at 'ttraff.com'. The document body, though heavily obfuscated, also contains this URL, suggesting it is the primary lure. The presence of many external PDF links, including benign ones from Shopify, indicates a link farm strategy to obscure the malicious destination.

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=eichmann+in+jerusalem+epub In PDF document text
    • http://pepego.petithappy.ca/uploads/1/3/1/4/131407406/logebogosuto_petirinu_xomaminozizuzi_pasixebanukumo.pdfIn PDF document text
    • http://ladeko.biz-skills.com/uploads/1/3/1/4/131406676/xobenudexobefupure.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/1/0430/5158/1597/files/18852042762.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2995/4721/files/3248408810.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0188/8416/files/sahih_bukhari_hadith_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/47878122177.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/0139/6638/files/2051218929.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2104/0792/files/82021330244.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4008/0023/files/wasteland_survival_guide_fallout_4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8042/4351/files/ccna_icnd1_and_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3622/9278/files/jiraworebuza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5586/6265/files/27927989477.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008adb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8ADB 5348 bytes
SHA-256: 41bbad670f7868a4c660e58003e1e892885fc92832f1897bd6e6ca6546eedbb3
font_01_sfnt_off00009ccc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CCC 2576 bytes
SHA-256: 2d1419103f7baca24c443a0fa032df32a06c37f6d2dc492a48115ae64bf378fd
font_02_sfnt_off0000a689.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA689 11224 bytes
SHA-256: 6fbfb6f4fa4264e2fd17b87443f6587dd8ace395ab93439023f16d955bef2a6d
font_03_sfnt_off0000cb43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB43 16780 bytes
SHA-256: 6f05fcc33dc372c65fe8ed4596c490c1c5fa3e30d289e41d945a04c13f239fa5

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