Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ba2d1671949e83f…

MALICIOUS

PDF

50.9 KB Created: 2020-07-29 11:05:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bdaef956322851d67b9499f60fc15534 SHA-1: 62c75c34dea2504430f75b4d8313497073d2a868 SHA-256: 6ba2d1671949e83fcd8f11e928f5beb41877e59185be167b8bee4e9c9076f5b0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting an attempt to manipulate search results or phish users. The embedded URLs point to known malicious infrastructure, and the document body, though heavily obfuscated, contains keywords related to the malicious links. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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=complementary+feeding+pdf In PDF document text
    • http://files.futurescapes21c.com/uploads/1/3/0/7/130739211/vukaza.pdfIn PDF document text
    • http://files.louisescott-bushell.com/uploads/1/3/1/3/131397927/41f2d13db7bb.pdfIn PDF document text
    • http://files.personalhibachichef.com/uploads/1/3/0/7/130775518/ef47c65ebfc36f1.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/1/0429/7195/5353/files/23696293728.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8110/4541/files/53431420049.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9581/8404/files/13879829525.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2790/6206/files/27657196734.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3046/3135/files/febugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4484/8295/files/42896046785.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2696/3865/files/fedepewipukoxotofifofot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1778/9862/files/ledubozonizeserirozemi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7513/3859/files/98583437202.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9806/2501/files/kepiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6255/0940/files/jifexifabatavajimol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0994/9348/files/40586349854.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_off00008692.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8692 5096 bytes
SHA-256: a338a632d6b40b6606dbd0ee0454d756d56257365956a12cb848f5c97aeba25d
font_01_sfnt_off000097d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97D7 12044 bytes
SHA-256: 6c8aaa219c64498171ab032689d741005bcdad841daa0315916696cc2fb241e9

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