Malicious PDF — malware analysis report

Static analysis result for SHA-256 18b610ecd217dd89…

MALICIOUS

PDF

45.3 KB Created: 2020-08-22 20:09:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: aed0a3449920b6346ca2ae43e0207770 SHA-1: 39bf0787f17e93c73b21e99beb865b9f98210e5c SHA-256: 18b610ecd217dd899aaa14608d557baaa1f33f6487b28b1f5eda47fab524ed94
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many of which point to a redirector service (ttraff.ru) that is known to host malicious content. The document body, though heavily obfuscated, contains text that appears to be a lure for a "concealer shade guide", suggesting a phishing or scam attempt. The presence of a large number of external links, many pointing to PDF files hosted on Shopify, indicates a link farm designed to attract traffic and potentially distribute malware.

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.ru/pify?keyword=overachiever+concealer+shade+guide In PDF document text
    • http://vinavegi.rootcellargardens.com/uploads/1/3/1/8/131871740/vixonunisomi.pdfIn PDF document text
    • http://files.timhunterartwork.com/uploads/1/3/1/6/131606605/1eabe9f80a.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/1/0432/1126/0062/files/mupojuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4452/8550/files/52467335368.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0755/6258/files/wewukiwefopob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3876/9303/files/ceratitis_capitata.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2707/8052/files/akon_hypnotized_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1649/3976/files/32744591119.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6970/9217/files/animoji_and_memoji_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2656/0677/files/90512394399.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2513/6792/files/xodirukitefedawomisig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4607/4525/files/kifubupezotifukisoberulod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/4442/9984/files/48938381844.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5783/0298/files/jagobujozipewarogu.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 3

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_off00006828.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6828 5288 bytes
SHA-256: 4b6410311e20d174f363fd978a5eff91dc3249ae8d8ce1aea01deba484ea608c
font_01_sfnt_off00007a19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A19 14944 bytes
SHA-256: 7534ba7de073e86463a4e7caf0f6d4fe629566f7dc524e5dcadf92bd0022b744

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