Malicious PDF — malware analysis report

Static analysis result for SHA-256 f4a0ad701c89f25c…

MALICIOUS

PDF

36.8 KB Created: 2020-08-26 01:10:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: af0fbdca51dc92993bd7bb48238fc703 SHA-1: 3f4e4298b3620ba54d21f2f628f5d82349af96c6 SHA-256: f4a0ad701c89f25ca4062db85b22df388f967a8771be7b17cd786689bf67f2f6
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a link farm pointing to a redirector service. The primary redirector URL is https://ttraff.cc/pify?keyword=dbd+huntress+cosplay+guide. While many other links point to benign Shopify domains, the presence of the redirector and other unknown URLs suggests a malicious intent to lead the user to a harmful destination. 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.cc/pify?keyword=dbd+huntress+cosplay+guide In PDF document text
    • http://kanupofu.eatforyourlifetoday.com/uploads/1/3/0/9/130969627/madeferegogapu.pdfIn PDF document text
    • http://tejav.bobkloos.com/uploads/1/3/1/6/131637814/duwovizubowazel.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/1/0434/2457/9751/files/33480299035.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7328/2983/files/jatov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8184/2341/files/73018992799.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3462/3643/files/dovimobatuvikesezetavi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7246/3772/files/dabivizikivarikulesulut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5257/1555/files/84406857056.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7078/2614/files/small_para_ppt.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7181/3285/files/three_golden_rules_of_accounting.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vibemegabixowosepabotabux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8292/2646/files/belotujojipepufutazo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4994/3202/files/mizevolexi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2195/1391/files/mission_impossible_ghost_protocol_imdb_parents_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4896/0151/files/fufufopexarepemose.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000046f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46F3 5576 bytes
SHA-256: 4afbc6dab03ebe41af66d224710c90cbf09a873c93be54dadb1727ce985b5e83
font_01_sfnt_off000059d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59D4 2484 bytes
SHA-256: 8085e85f7ab2ec424f2d1e8603e5adaf13eeac0702cda241d6a7218dd8b8c71c
font_02_sfnt_off00006475.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6475 9880 bytes
SHA-256: 06cce4bf99a985cb75f059d685c71c896d0521965fa578f3d8867ea63989dd15

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