Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b9bab8c98a649b5…

MALICIOUS

PDF

42.3 KB Created: 2020-08-15 15:23:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 87bd2217d3df08f7878c13a71f69cb0b SHA-1: fe2b009b73b916cbd19caf1f4652f1a3149e839d SHA-256: 2b9bab8c98a649b5b87037421a5dc9db881afb5ac4a5e6346d06b26f0aced1a1
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including a critical redirector link to ttraff.com, suggesting a lure to malicious infrastructure. The document body, though obfuscated, contains the same URL, reinforcing the malicious intent. No scripts were extracted, but the PDF structure itself is used to host and distribute malicious links.

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=alphabet%20sounds%20worksheets In PDF document text
    • http://sunut.frankechenhofer.com/uploads/1/3/0/8/130814328/xapexavisur_jepibot_jonesivoguv_sesugezuzipita.pdfIn PDF document text
    • http://files.bonusroomart.com/uploads/1/3/2/8/132815343/zenizova.pdfIn PDF document text
    • http://files.sfvlsa.org/uploads/1/3/1/4/131453934/ac05a9bc8.pdfIn PDF document text
    • http://pexalu.ocfertilitycare.com/uploads/1/3/1/4/131453945/9787481.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/1/0431/5519/4011/files/xedodune.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1174/2628/files/rosuposajexu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9952/1181/files/wupen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0928/5024/files/nowudugewabarada.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3756/4839/files/the_logical_song_sax_solo_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4368/4503/files/reduce_file_size_mac_preview.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8508/4310/files/86005630129.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rasebiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1860/0104/files/awakening_lucifer_asenath_mason.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2598/8757/files/laxaguzakodinebo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4754/1146/files/field_manual_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9168/1699/files/htc_unlock_boot_loader.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1645/3272/files/zepoferuxenikibesatabujek.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 6

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_off000066f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66F9 5332 bytes
SHA-256: 55c65745a57da04851f7bafc2993a181583c34beb775774c77f3190c4b71f38f
font_01_sfnt_off00007914.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7914 10348 bytes
SHA-256: afd586aab1275d47a5cd3825a651ad9135e18faf979b380a1c528e45d00647df

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