Malicious PDF — malware analysis report

Static analysis result for SHA-256 587d89b402703a57…

MALICIOUS

PDF

82.1 KB Created: 2020-09-01 03:46:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 13b03e0eca397f7221424a3674e2565e SHA-1: d8727f471df3057496ebd8666024da8b2fbfdfc7 SHA-256: 587d89b402703a57576571847209317c70891ee3543072317e702aa7ff873769
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.ru, which is designed to lure users into clicking on potentially harmful content. The document body, though heavily obfuscated, contains the URL and keywords related to 'adrenaline hormone pdf', suggesting a deceptive lure. The presence of numerous external PDF links, many hosted on Shopify, further indicates a link farm or SEO poisoning attempt to drive traffic to malicious sites.

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=adrenaline+hormone+pdf In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9912/0033/files/kidinirupejoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4869/6993/files/friday_the_13th_part_3_cast.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6987/5111/files/xizuxibezubenisoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9736/7452/files/lebonixozutuli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1584/5541/files/roman_candide_en_arabe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6360/7445/files/46922361043.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6897/1415/files/vanilla_wow_hunter_macros.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7988/3170/files/how_to_face_interview_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7923/6760/files/piliwirotijulefurefez.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/6df952_f0e7c1b693434d088c4919db59fed7c5.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/79e0dc_777bafef0cf94f96a358068e4a6c820e.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e24f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE24F 4800 bytes
SHA-256: 3423b2e47a20803a50241950a0263602fbdda6c44c7209d8b995f9ae5d2fe6f8
font_01_sfnt_off0000f25d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF25D 11096 bytes
SHA-256: f3211188d7b84f009b77c893dacbd0f9fa100562218278800fb53194066d301f
font_02_sfnt_off0001187f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1187F 16160 bytes
SHA-256: 9759ce8d6b03285eaaf0b3a467cae172b6556f7d7d175f3d646a9f0b73e2040d
font_03_sfnt_off00012d90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12D90 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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