Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd2fdf792c16071d…

MALICIOUS

PDF

46.6 KB Created: 2020-08-22 22:14:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6498bc6770fc69113df26d7776a69436 SHA-1: 850ae12f210765933f0850e048a3f143dc0af71e SHA-256: cd2fdf792c16071d129ec5c73ec7202a067a612648658faf5cf778cfbe60c06f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic indicating it is a malicious redirector, pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL and a reference to 'wkhtmltopdf', suggesting it was generated by a tool. The presence of numerous links to shopify.com PDFs, while individually benign, contributes to a link farm pattern, likely for SEO manipulation to attract victims. The primary malicious intent appears to be redirecting users to a malicious site.

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/pify?keyword=becalmed+sheet+music+trumpet In PDF document text
    • http://files.drjrealtalk.com/uploads/1/3/0/7/130738681/5274141.pdfIn PDF document text
    • http://files.multiplatformmastermind.com/uploads/1/3/1/3/131398322/wikuxovimobomozaju.pdfIn PDF document text
    • http://wokotoxo.adkstrings.com/uploads/1/3/1/8/131871871/wobepufesodoti.pdfIn PDF document text
    • http://depeto.nutritiousmindsconsulting.com/uploads/1/3/0/7/130775493/262b38a7a402fee.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/1/0433/5131/0488/files/pneumatic_drilling_machine_working_principle.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6363/1272/files/95980788779.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8996/0861/files/24721024917.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1231/6584/files/captain_america_winter_soldier_script.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2944/7335/files/carmeuse_holding_annual_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3348/5727/files/nokol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0513/2456/files/pagiraxijim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8426/6137/files/81328426469.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/0455/9261/files/minecraft_aether_mod_1._6_4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/9829/2638/files/cassia_fistula_medicinal_uses.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/2317/2503/files/75351536291.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1423/4013/files/crunchy_roll_login.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0201/9487/files/90311034409.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4021/1097/files/sebifenifopafazenopigez.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005b93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B93 5028 bytes
SHA-256: f9f4f752f83a59ed436a7f5620603a797f016087a2c6d10b51fc4108f143ed87
font_01_sfnt_off00006ca5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CA5 15712 bytes
SHA-256: db13c262f73191d7f4d620f973a2e97c86ae2c3138b4c28886f26c0fc9a33242
font_02_sfnt_off00009d93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D93 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378