Malicious PDF — malware analysis report

Static analysis result for SHA-256 870084ccec943643…

MALICIOUS

PDF

42.0 KB Created: 2020-08-01 22:52:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6eff115ddb98db733e661e35dc941b9e SHA-1: 23906bd323bc6cb19afb6e0c1beab8a5abaf811b SHA-256: 870084ccec9436433e2b05495638f685ed5c04eb735d481dc04b8cd97055983e
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.ru) that is associated with malicious activity. The document body, though heavily obfuscated, contains text related to 'how to delete adobe account' and the malicious URL, suggesting a phishing lure. The presence of many links to external PDFs, some hosted on Shopify, indicates a link farm strategy to distribute the malicious content.

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=how+to+delete+adobe+account In PDF document text
    • http://files.parlorhairboutique.com/uploads/1/3/0/7/130776067/depopufokexefu_bifijemi_venetoxasoxuna.pdfIn PDF document text
    • http://files.agiteysirva.com/uploads/1/3/1/4/131453695/minitokateka.pdfIn PDF document text
    • http://files.chainoflifemovie.com/uploads/1/3/0/8/130874160/b4e4dfb3d8.pdfIn PDF document text
    • http://files.utilitytec.com/uploads/1/3/0/7/130739924/lixojepox_rakepivatazazim_zuvasu.pdfIn PDF document text
    • http://files.elchristian.net/uploads/1/3/1/4/131455832/pejaluvozetemisaw.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/1/0433/1362/7294/files/46805636181.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8613/5961/files/8134798297.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2969/0528/files/6205186599.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8627/4967/files/49554427824.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7408/5279/files/79408569362.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3135/5807/files/ximuzonuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6819/4978/files/92404436318.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0667/1517/files/kasimimajuzumogugunuluxol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9062/5191/files/87285382864.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6680/9765/files/25535163559.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3024/8600/files/xovopebakigubikas.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 7

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_off000066c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66C1 4852 bytes
SHA-256: c97d8ab6224250bc90e2b24f45acbaf2694f28e03ed561916a56a1f511ef7955
font_01_sfnt_off00007766.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7766 10552 bytes
SHA-256: e88ad75806bfa481d1f9d50040ad8c09c9acace77b619223d1f1f5795cf531cd

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