Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8c30ebe72fd35c6…

MALICIOUS

PDF

38.1 KB Created: 2020-08-07 02:13:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 47d5600d1d938989d9a8044fbddb965e SHA-1: bfe377838bb1f265b71b580d656d982aa454eeff SHA-256: e8c30ebe72fd35c6a5fbcea2bb3bcc21a05b022b8252a1c6ac6139a4a2308578
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many of which are hosted on Shopify and appear to be SEO-optimized content. One critical heuristic identified a link to a known malicious redirector infrastructure at `https://ttraff.cc/pify?keyword=assembly+language+8086+tutorial+pdf`. This suggests the document's primary purpose is to redirect users to malicious sites, likely for phishing or malware distribution.

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=assembly+language+8086+tutorial+pdf In PDF document text
    • http://files.laurennicoleanderson.com/uploads/1/3/1/4/131406510/jixeledetowigu_majafuditulejum.pdfIn PDF document text
    • http://files.areyoureallybringinghim.com/uploads/1/3/1/4/131406140/begoxiw.pdfIn PDF document text
    • http://files.thingsfromthebasement.com/uploads/1/3/1/8/131871850/wowuri.pdfIn PDF document text
    • http://files.editmythesis.com.au/uploads/1/3/2/7/132711966/545a96cfa1.pdfIn PDF document text
    • http://files.bhcomputers.online/uploads/1/3/0/7/130776088/wilimo.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/1/0431/1983/7345/files/11627117200.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6480/0918/files/9252712583.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0641/9367/files/magazine_template_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0392/7973/files/xogaxuwikexiluvevofuse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5082/6919/files/92596299524.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5819/9719/files/define_accounting_software.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2703/6322/files/appointment_card_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7275/7670/files/check_your_english_vocabulary_for_ielts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2522/5112/files/10867811066.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4352/0666/files/97628276179.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4175/9138/files/bozuwawifuradaza.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_off000054d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54D2 6084 bytes
SHA-256: e4354cd4fd94d08e064750fc68c1bb053b69a03fb92b9757db94dadbfda8e557
font_01_sfnt_off00006966.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6966 9900 bytes
SHA-256: d2c77a4ae408b7d7ad12676132d7275e0e9031d609460ec5c35ab539fd2a7541

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