Malicious PDF — malware analysis report

Static analysis result for SHA-256 98b5609bc8107ae8…

MALICIOUS

PDF

40.1 KB Created: 2020-08-01 06:21:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c29940071b378ea251d8cd95f5c236eb SHA-1: ff8c3298498ddeb4d760446e11b18732d9dbda6b SHA-256: 98b5609bc8107ae8f7670d42701585b35eff441235922adc1e63e24fb13631c1
194 Risk Score

Malware Insights

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

The PDF contains embedded links, one of which points to a known malicious redirector. The document body, though heavily obfuscated, appears to be a lure related to a 'bell home hub 1000 manual pdf'. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm for SEO poisoning, further indicating a malicious intent to drive traffic to malicious sites.

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/wb?keyword=bell%20home%20hub%201000%20manual%20pdf In PDF document text
    • http://files.thebeekeepernv.com/uploads/1/3/0/8/130873927/keteku.pdfIn PDF document text
    • http://files.sunmedicineemotions.com/uploads/1/3/1/4/131454151/6870802.pdfIn PDF document text
    • http://files.tuslawmustangsfootball.com/uploads/1/3/0/7/130739674/e98eba8b8b499.pdfIn PDF document text
    • http://files.mividalocagallery.com/uploads/1/3/1/1/131163590/jofuporaxokeror_jikowovar_vakax_degolemezikipa.pdfIn PDF document text
    • http://files.yunilotusconsulting.com/uploads/1/3/0/8/130815017/raminofitumisu-turibegolenipop-wupexeduzukem-fijikani.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/1/0428/9835/8432/files/lufixupiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3564/0487/files/17830348222.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3826/0899/files/63362624425.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4070/9527/files/zivemubogoxitupupokuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0611/3430/files/97299552322.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5298/9605/files/derefimigerogorusiko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6700/7386/files/60021816917.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6394/8950/files/61964843538.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9139/3698/files/gagewabilaxip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5653/6471/files/22113223905.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3865/2069/files/41814194713.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_off00005f44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F44 5392 bytes
SHA-256: 25aea53d6fd538fa1e35be122a8a41782f891ed9da0592a26c5384ec137fb2ed
font_01_sfnt_off00007175.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7175 10020 bytes
SHA-256: c988805d06cb7c2a1790d9a7e1ad65b3e54514a327bad21bd04fea1bf34fb131

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