Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1b736f69aa6ace8…

MALICIOUS

PDF

51.2 KB Created: 2020-07-24 02:47:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1c4fe2c7e6fc01135709c78db9ca9545 SHA-1: 50020e3bb6c50d52e73d4a037230fe8abb7f0c9c SHA-256: e1b736f69aa6ace8da8cbf2da820f99155ceae6f7013adb691d17aaebf0d02fb
194 Risk Score

Malware Insights

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

The PDF was flagged as malicious by a machine learning classifier and contains a large number of embedded links, many of which point to a redirector URL. The document body, though heavily obfuscated, contains text related to 'vanilla wow dungeon level guide', suggesting a lure. The primary malicious indicator is the presence of a link to 'ttraff.com', a known 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=vanilla+wow+dungeon+level+guide In PDF document text
    • http://files.thenauticalartsworkshop.com/uploads/1/3/1/6/131606035/bikebawifutir.pdfIn PDF document text
    • http://files.desertjewelsinc.com/uploads/1/3/2/6/132681317/6e489d26b7f.pdfIn PDF document text
    • http://files.thegreatalpacaplace.com/uploads/1/3/2/6/132682293/kemosalok.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/1/0437/2529/1671/files/94209755477.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2246/6727/files/39057455802.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9157/4430/files/binezuwimoparal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2742/3654/files/7723965169.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9234/4999/files/32826805393.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9240/1573/files/82132696349.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3111/6448/files/tamizur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4061/1226/files/45296045061.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6753/1673/files/zedikebibuvo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9911/9013/files/5610167920.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4852/6246/files/bupubulonurafonesute.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0151/2090/files/dewesagobisoxasubalopawu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4136/5922/files/penewi.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008e60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E60 4640 bytes
SHA-256: 993e8108a72bf79556507aebb0c156da43b19a9daa0da3c3ce1ccbac72809f50
font_01_sfnt_off00009e3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E3F 9828 bytes
SHA-256: 660d41dd0155f702b411eac346a0b630ab16506c697b5bbac8252b3ffcca529c

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