Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b154b57c4c1bf4d…

MALICIOUS

PDF

44.0 KB Created: 2020-08-10 23:53:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: db90fea3f980a3dff4bca390aef8c07b SHA-1: ad86dc6d36b912a6745e36f9097856c760567acb SHA-256: 3b154b57c4c1bf4debdf2ccfb22c6aaaea90580ded2c05cdd16eb83310821423
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF file contains a lure related to a 'sage erp accpac 500 user manual' and embeds multiple links. One critical heuristic indicates a malicious redirector link to 'ttraff.ru', which is likely part of a phishing or malware distribution chain. Another heuristic flags it as a PDF link farm, with many links pointing to Shopify-hosted PDFs. The document body, though heavily corrupted, contains the URL 'https://ttraff.ru/wb?keyword=sage%20erp%20accpac%20500%20user%20manual' and several Shopify URLs, reinforcing the link-based attack pattern.

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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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/wb?keyword=sage%20erp%20accpac%20500%20user%20manual In PDF document text
    • http://files.westsantarosa.com/uploads/1/3/1/0/131070767/ribigajowezovi.pdfIn PDF document text
    • http://files.explorestanton.com/uploads/1/3/1/4/131453216/6741733.pdfIn PDF document text
    • http://files.brookekferguson.com/uploads/1/3/1/3/131383456/xavitefa_retibonik.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/1/0433/0687/7080/files/sefumiwizekoreletete.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6803/8049/files/wikezatomowobazoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9832/5663/files/65641736771.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2790/7239/files/fifiwosugowumuraruka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5823/2473/files/8195881001.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5557/0341/files/memigize.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/1151/0170/files/d_d_4th_edition_character_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6778/5884/files/77069107632.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9087/0423/files/644101569.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7318/4678/files/23698379828.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000638a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x638A 5624 bytes
SHA-256: b70cff20d038a152cb1ccc901cc7e331e9bfa9eb395c6d7a57fa03915552c06f
font_01_sfnt_off00007693.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7693 14380 bytes
SHA-256: e0af076f00efb0a298a294b367eab85f239611613f126b9f914ea51540200452

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