Malicious PDF — malware analysis report

Static analysis result for SHA-256 541f6c410abbe098…

MALICIOUS

PDF

51.4 KB Created: 2020-08-10 18:39:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 66f3de03c3b050fa857eb7950ef815ad SHA-1: 5c8eb526fe133057788ee558e0f5057c04301305 SHA-256: 541f6c410abbe0984e27b638154ed8fe747eb197a089ca04827d5e3e0964cad9
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external PDFs, suggesting a link farm or SEO poisoning attempt. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is used to obscure the final destination. The document body, though partially corrupted, contains text related to 'Catalytic reforming process pdf' and the URL https://ttraff.cc/pify?keyword=catalytic+reforming+process+pdf, reinforcing the lure. The primary attack pattern involves redirecting the user to malicious infrastructure.

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.cc/pify?keyword=catalytic+reforming+process+pdf In PDF document text
    • http://pivaxa.pure-sh.com/uploads/1/3/2/8/132814930/7085794.pdfIn PDF document text
    • http://files.thefeduppharmacist.com/uploads/1/3/1/4/131437701/5668199.pdfIn PDF document text
    • http://files.stratfordconcertband.com/uploads/1/3/0/7/130739443/dokejirabusebos.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/1/0431/0161/8327/files/80071123942.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/76588695657.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8529/9874/files/been_e_gone_esercizi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0926/1220/files/scientists_tools_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6772/8279/files/pdf_to_editable_word_document_converter_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1674/8190/files/livodomomutepegewaxur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9476/1877/files/kajoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2529/9613/files/26534787065.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6982/4407/files/54797625839.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9446/5948/files/cerebral_palsy_file.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9292/6883/files/tenitokemugafuwatimupimod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3351/8489/files/dungeon_and_dragons_monster_manual.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 6

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_off00008b0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B0F 5484 bytes
SHA-256: 6a49341c27e9eb26c9a745d5553c82bcf21393a2236efbd67be923a45fda535c
font_01_sfnt_off00009da5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9DA5 10168 bytes
SHA-256: d0d77cd377e7841bc1b040e5a3626eed13565eafd71652a9c10df798b2d1cbf9

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