Malicious PDF — malware analysis report

Static analysis result for SHA-256 b832a57c9c1f3f5c…

MALICIOUS

PDF

41.6 KB Created: 2020-08-14 22:41:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c004b8bc01de167e71b86052879906ce SHA-1: 9b6633a631bb87ab803c15653f6984b8f55ad502 SHA-256: b832a57c9c1f3f5cff0b14cd5d9faa73ba273796ed918eeefd2e537c990c920c
194 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as an 'Instant Pot manual'. This link, 'https://ttraff.cc/wb?keyword=instant%20pot%20manual%20high%20pressure', is designed to lead users to further malicious content. The document also functions as a link farm, embedding numerous external PDF links, many of which are hosted on Shopify. The ML classifier strongly indicated maliciousness, supporting the presence of a malicious redirector.

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/wb?keyword=instant%20pot%20manual%20high%20pressure In PDF document text
    • http://wozerev.glam2bella.com/uploads/1/3/1/4/131437252/tepamasajidizi-fukiro-sowifukozeti.pdfIn PDF document text
    • http://files.actemm.com/uploads/1/3/1/4/131453436/zodulepikij.pdfIn PDF document text
    • http://files.decatursistercities.com/uploads/1/3/1/4/131408204/wivenojawu.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/1/0428/8453/0343/files/cdisc_adam_implementation_guide_version_1._1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/4235672026.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8494/8380/files/lajukefixufidifokidojono.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2251/4338/files/b_l_theraja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/5398/5442/files/biometrical_techniques_in_plant_breeding.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0201/9487/files/sikokodekimolumoruta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6500/7509/files/53715782376.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9392/3742/files/african_continent_countries_and_capitals.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4628/1120/files/vector_calculus_marsden_6th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3708/2271/files/14032037623.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2036/1629/files/varisia_birthplace_of_legends.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4672/2974/files/63413435784.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_off000064e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64E4 5172 bytes
SHA-256: 908830897a6a1830f4a18610e23e17daf716cca56389f38db668bbaa807f0832
font_01_sfnt_off00007642.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7642 10460 bytes
SHA-256: 74ff48ec5fc3819519ffd693539998ec5f31f29f3ab733433ea218ce939aa9b0

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