Malicious PDF — malware analysis report

Static analysis result for SHA-256 2557d52839a43a31…

MALICIOUS

PDF

42.9 KB Created: 2020-08-03 10:44:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fedc92137d507a0e59514a40a7eb0204 SHA-1: f0a77e43800fe25d38f62f16179d50c0ff2ab8d3 SHA-256: 2557d52839a43a319c287824e73643ceb8daca031f2277e10cb1c16833734449
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 disguised as a search result for a 'black and decker toaster oven manual'. This suggests a phishing or scam attempt to lure users to malicious content. The document body, though heavily obfuscated, also contains the same URL. The PDF also contains a link farm of other PDFs hosted on Shopify, likely for SEO manipulation to improve the ranking of 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=black+and+decker+toaster+oven+manual In PDF document text
    • http://files.globalmarinemedia.com/uploads/1/3/2/6/132680808/wagulujiwinep.pdfIn PDF document text
    • http://files.skynstyle.com/uploads/1/3/2/3/132303351/4178851.pdfIn PDF document text
    • http://files.flavorsbakery.com/uploads/1/3/1/4/131437984/67cd5e08beb04b8.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/1/0430/7510/9013/files/90002640237.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7634/6266/files/reriravudokemefojuvoniv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/radeziwiwilajumigetadad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6667/8686/files/pegupevoji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4290/6007/files/dozixizadezapebivowegos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2944/5273/files/48297249406.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6320/4253/files/34943206190.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8360/3876/files/simunotasawonu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7741/8656/files/87153772150.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rinajimakonewob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6508/9941/files/81453143898.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 2

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_off00006ac9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AC9 5256 bytes
SHA-256: cf1455271e4ccc9c31fc1bda6d6eceebe4ea5e4f7ad1f320c74f15ac598dd0fc
font_01_sfnt_off00007c9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C9B 10028 bytes
SHA-256: f4d3ad39391c8690ee23503b1fffc1000d62c9b8685d9112cbfdf930e8db9a72

Open this report in the interactive analyzer, or submit your own file for analysis.