Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b1a4e39c376645f…

MALICIOUS

PDF

33.6 KB Created: 2020-08-09 11:34:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 545458336cfd379b8fdf1f9242d68e0b SHA-1: 06f020e3e3ec642cf085a7adb740a4348d0dd44c SHA-256: 7b1a4e39c376645f2f82dc758cb3150cebc168e92b6ea4905426def3232d0cfd
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains multiple embedded links that redirect to malicious infrastructure, specifically `https://ttraff.com/pify?keyword=acutronic+fabian+pdf`. The heuristic firings indicate it's a redirector and part of a link farm, suggesting a phishing or malware distribution campaign. The ML classifier strongly supports its malicious nature. No scripts were extracted, but the embedded links are sufficient evidence of malicious intent.

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/pify?keyword=acutronic+fabian+pdf In PDF document text
    • http://files.maritsaxegaard.com/uploads/1/3/2/6/132695620/mugesa.pdfIn PDF document text
    • http://files.finksdeli.org/uploads/1/3/2/7/132741222/5b0259.pdfIn PDF document text
    • http://files.workshoppersonline.com/uploads/1/3/1/4/131483584/likeradili-gitofomimixunu.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/1/0432/3239/5426/files/76263548478.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3033/8966/files/jagolukekibovukena.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3640/8982/files/xupatililagugareg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9074/8316/files/47574172771.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4613/3157/files/pibogikexakefurikaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2027/8171/files/8553381086.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7437/9173/files/5_minute_charts_technical_analysis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7693/5068/files/83053750846.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5546/4104/files/92816354060.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/16946396068.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_off00004763.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4763 5068 bytes
SHA-256: 86cabae0e488c6f8c66cca0ec63e0950334b2dae6ad3c97690ade5a37f34bc32
font_01_sfnt_off000058ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58AC 9764 bytes
SHA-256: 204f042aeed62717486bd092fc77c17bca4d2967c113e9265ec0bd08c1c9509c

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