Malicious PDF — malware analysis report

Static analysis result for SHA-256 4bae69e79bc8fcb2…

MALICIOUS

PDF

39.2 KB Created: 2020-08-19 23:11:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8b38f412fe4b9d44e0ca022a77b053c9 SHA-1: a5c6834a9dd0ea6392991344f7641b1f7581a1a3 SHA-256: 4bae69e79bc8fcb2d84d1533b01366dcb99c1e5f8c00c38753755ca1b83ec071
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=codycross+game+answers'. It also exhibits characteristics of a PDF link farm, embedding numerous external PDF links, many of which are hosted on shopify.com. The document body, though heavily obfuscated, contains references to 'Codycross game answers' and the URL 'https://ttraff.ru/pify?keyword=codycross+game+answers', suggesting a lure to a potentially malicious site disguised as a resource for game answers. No scripts were extracted from this sample.

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=codycross+game+answers In PDF document text
    • http://zujetejox.pennyspetproject.com/uploads/1/3/1/6/131637309/c27d0deec9092.pdfIn PDF document text
    • http://xetura.martinhartfilms.com/uploads/1/3/1/4/131483025/liguvotar.pdfIn PDF document text
    • http://files.cavysa.org/uploads/1/3/0/7/130775197/1732728.pdfIn PDF document text
    • http://files.tvgoldsmiths.com/uploads/1/3/1/3/131384113/wosipuzol.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/1/0433/1231/6584/files/arcanum_unbounded.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1021/2519/files/manual_chiller_carrier_30hxc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7680/5023/files/99158271708.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6956/3290/files/75648790896.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6012/6118/files/jijasozagiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1498/7674/files/rofapoginaxijezokikeki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8578/3447/files/mifoxunizix.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C80 5328 bytes
SHA-256: 2767e1b8dc1fd275c02bfdf10069880b2544b8155bd41ee57e94c26f81082891
font_01_sfnt_off00006e94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E94 9908 bytes
SHA-256: a0b68c07812aaafa84bd343dfadc326a717cfc47dbbf5eb74ac9f1620314f37f

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