Malicious PDF — malware analysis report

Static analysis result for SHA-256 81746a974447315f…

MALICIOUS

PDF

47.2 KB Created: 2020-08-14 00:16:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 90f3f52d4442de9856d33cf4dfa9b9a1 SHA-1: 644f1f009e6a97d0a4225c983a7a542e5cf3bc79 SHA-256: 81746a974447315f6d19e71bb5c80e06aada2a01101cdbc39addd3ca48cd8255
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link farm and a redirector URL, disguised as a 'Mistral thermo cooker instruction manual'. The primary redirector URL, https://ttraff.com/wb?keyword=mistral%20thermo%20cooker%20instruction%20manual, is flagged as malicious. This indicates a phishing or scam attempt to redirect users to potentially harmful content. The ML classifier also strongly flagged this PDF as malicious.

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.com/wb?keyword=mistral%20thermo%20cooker%20instruction%20manual In PDF document text
    • http://files.antoinetteducheinlagrone.com/uploads/1/3/1/3/131383255/3fc00292d.pdfIn PDF document text
    • http://files.platonicadventures.com/uploads/1/3/0/8/130874655/laxolo_mobiridixeb_raroperas.pdfIn PDF document text
    • http://ginexemu.aniasadourian.com/uploads/1/3/1/1/131164239/8338913.pdfIn PDF document text
    • http://nigop.manhattangrace.org/uploads/1/3/0/8/130873804/91ebf93acd2.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/1/0431/2865/1938/files/16431048607.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1756/6368/files/nomelakopa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/22700630349.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7471/4790/files/ap_b._ed_psychology_book_in_telugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zumimulapowekulusevenire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4456/0281/files/lezonofu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4448/5790/files/bncc_ciencias_da_natureza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8844/5604/files/xafamorelozizesorumonu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3765/5191/files/napozizapi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7492/0347/files/wipawugawubesizet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0146/2436/files/tuzobumetu.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 4

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_off00007b3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B3D 5108 bytes
SHA-256: 48ae039acdc122ad8e0701650d07c287832ad2b8405f1c413d52c5669c88fd92
font_01_sfnt_off00008c76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C76 10260 bytes
SHA-256: 0678b7a8336c9600aafa5410d8d189f36bde25f8c4d859748cf6ec7b5e1f8e5a

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