Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a1ef3c95739085c…

MALICIOUS

PDF

44.4 KB Created: 2020-08-05 12:07:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b691916fc67986f52aac347dd1d51a87 SHA-1: 54b55f9e8b035a8f16e46e028efc5826797ee44e SHA-256: 2a1ef3c95739085c96e9bdd48c91871ce22ca31bc3a8987b29cc7bccb51130cd
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a mass of external links, including a redirector link to ttraff.cc, suggesting a link farm or phishing attempt. The document body, though heavily obfuscated, contains keywords related to 'Dreamweaver cs6 tutorial pdf' and references wkhtmltopdf, indicating a lure to disguise malicious links. The presence of numerous PDF links, many hosted on Shopify, points towards an SEO spam campaign aiming to drive traffic to malicious 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.cc/pify?keyword=dreamweaver+cs6+tutorial+pdf In PDF document text
    • http://files.fffurther.nl/uploads/1/3/1/3/131380063/3091189.pdfIn PDF document text
    • http://files.sallydurant.com/uploads/1/3/0/8/130813777/tuzewonu.pdfIn PDF document text
    • http://files.sweetmaplecafe.co/uploads/1/3/1/6/131607331/d51c9bd8d1086.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/1/0429/9236/9823/files/12499790155.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/72645751706.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6203/4589/files/mumizebepolavik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4933/7507/files/dogowewagixulilibopoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4259/5239/files/dizorot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2496/5019/files/9462119502.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1615/7344/files/download_caballo_de_troya_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2538/2051/files/zajalubivepakolefu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4790/2629/files/fevotujaruruluw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2549/7250/files/74905048767.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3290/2806/files/46385725718.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5612/8412/files/likifivuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0971/2023/files/75005319344.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004e6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E6A 9656 bytes
SHA-256: 1e21ec2bbed87ed5bd6e9217ff59ac563a17cd7e5744bd74ca35d77d41e60e2f
font_01_sfnt_off00006d38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D38 5608 bytes
SHA-256: 37898b8d0ea350e23d56214337b4d2d07b29e2fd651543d05b9f2b03242f9e63
font_02_sfnt_off00008053.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8053 9884 bytes
SHA-256: 1eab1ed44a1060537f7d31aebb7c0da6b7fb1e4450883f37c2ab7a07f3c0710a

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