Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b9346a1fd357a05…

MALICIOUS

PDF

44.2 KB Created: 2020-08-24 22:24:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9c3fcaee827cf7a0f936e5a6748cb03c SHA-1: 6e2c81cc7cbc035d754a0b69507163d86110e450 SHA-256: 2b9346a1fd357a0518027cdf9f4531d3ea8ca8cbbc25ecd645c8472a9283813d
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a malicious redirector link to 'ttraff.ru', suggesting an attempt to lead users to malicious content. The document body, though heavily obfuscated, contains the same URL, reinforcing the malicious intent. The presence of numerous links, including those to potentially benign Shopify domains and other unknown domains, indicates a link farm or redirection strategy. No scripts were extracted from this sample.

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.ru/pify?keyword=sustainability+report+pertamina+2018 In PDF document text
    • http://jefifeliv.raypecbasketball.com/uploads/1/3/0/8/130874493/mekuraxolor_duves.pdfIn PDF document text
    • http://files.constancebretes.com/uploads/1/3/0/7/130740342/9045686.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/xifemopevadow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0392/5912/files/accessory_structure_of_the_skin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1628/0469/files/kadaboxerewugivag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2816/9375/files/49521035699.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0729/3086/files/rinuwediterojomosuteviti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6858/8194/files/kivekegekagupo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0360/8216/files/xexirixajafulek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1356/0731/files/43298183655.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8815/0690/files/29468431006.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3236/0613/files/86957573148.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 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000060db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60DB 5712 bytes
SHA-256: a6441744325a1f8f7b42dc507f289a2f899acd68745281294854f8f333c545fe
font_01_sfnt_off00007429.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7429 9896 bytes
SHA-256: a6c1e08e8d3a82b5153ebceae509ea676082aad73ddf1a2589c40f4590e754cd
font_02_sfnt_off0000961b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x961B 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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