Malicious PDF — malware analysis report

Static analysis result for SHA-256 b43153e17e2e2234…

MALICIOUS

PDF

41.1 KB Created: 2020-08-17 17:30:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 700b1c55ff7e74be9f08becb315ee739 SHA-1: f5dac8f91effa374cf83217132225f1f649a0cea SHA-256: b43153e17e2e22346b69fcc50ee75ac40a6975fc3e5c676ea8834eb9e3de5d2b
194 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a known malicious domain, disguised as a manual for a 'Scala2 water booster pump'. The document body is heavily obfuscated but contains the same lure text and URLs. The presence of a malicious redirector link indicates an attempt to lead the user to a harmful site, likely for further exploitation or credential harvesting.

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=scala2+water+booster+pump+manual In PDF document text
    • http://files.homewareimports.com/uploads/1/3/1/6/131637190/mowelegufepinu_fozorowo_zajepofirozuv.pdfIn PDF document text
    • http://files.lirielbijoux.com/uploads/1/3/2/8/132814468/6974648.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/1/0436/7086/4037/files/litewoligesedasij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2195/9325/files/72774508442.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8375/9765/files/morojow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4619/7653/files/76937456102.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1925/5454/files/zitinukojawilunelaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0740/9319/files/bebijovesaxuzonedifisevo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9493/3665/files/nelonebiloxifiwiwajoga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6286/1730/files/pidubidenunurozabugabevob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5319/5165/files/37308345918.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9427/0371/files/nufur.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 5

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_off0000626f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x626F 5548 bytes
SHA-256: 16abe6eb523d6d7eb31828fc4d44d7395b188b67d08675cff1f593a0187d8615
font_01_sfnt_off00007533.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7533 10140 bytes
SHA-256: e4f6d2bb30a75e3dbd0e4fdc8eafc959031198869a89423e100b965403491445

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