Malicious PDF — malware analysis report

Static analysis result for SHA-256 436149ff75ad1abe…

MALICIOUS

PDF

47.7 KB Created: 2020-08-20 02:00:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 97b1ea0bac0a2e55c17cca25221afcc5 SHA-1: 2f2dbdebdad140f9f0c22ca4df2a10311d0de0d2 SHA-256: 436149ff75ad1abe25fc201751d4a7a7652aa6939ae9595193c18b5206f013fe
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a lure related to 'aafes uniform return policy' and embeds a link to a known malicious redirector. The PDF also contains a link farm pointing to various Shopify-hosted PDFs, suggesting an attempt to manipulate search engine results or distribute content. The primary malicious URL identified is https://ttraff.cc/pify?keyword=aafes+uniform+return+policy, which is flagged as a malicious redirector.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=aafes+uniform+return+policy In PDF document text
    • http://files.capscoating.com/uploads/1/3/1/0/131070152/valir-wovizopagoj-bafok-xabug.pdfIn PDF document text
    • http://files.upscaleresale4kids.com/uploads/1/3/0/7/130739152/pixuluzimufujom.pdfIn PDF document text
    • http://peberex.carolgarbodenmurray.com/uploads/1/3/0/7/130776485/531867.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/1/0430/7278/2489/files/33474337652.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5283/4711/files/24382335365.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5082/7929/files/40204137671.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1518/4277/files/statistical_quality_control_eugene_grant.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7446/2631/files/25964824128.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3864/5144/files/battletech_mechwarrior.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7580/6119/files/don_t_rock_the_jukebox_chords.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7743/5556/files/blue_book_of_grammar_and_punctuation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7003/7917/files/long_dark_teatime_of_the_soul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0962/2691/files/patuvawemanasum.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_off00007bd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BD8 5252 bytes
SHA-256: a208817cd50996e5a46e93f141a0def8ccc6585953034614fc64e93c88f79dee
font_01_sfnt_off00008da8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DA8 10544 bytes
SHA-256: c3a5507a975caabafe7724c8a5a4521282ab35a6869217f4abdc4b328dcbfa7d

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