Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd1ed5a1329658de…

MALICIOUS

PDF

48.0 KB Created: 2020-08-05 11:44:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ff6a7adcd8be6d4dd136a692a4c5ebd9 SHA-1: 97507ebcf5c7dac96bc0a77616f9f532c2bf5ee6 SHA-256: fd1ed5a1329658de641d1ccd0643bac3a973dc29cb036cd74bc69e41382dee0e
234 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=dibujarte+pdf+coleccion'. Additionally, it exhibits a PDF SEO link farm heuristic, with numerous links to PDFs hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains the malicious URL. The primary attack pattern involves directing users to malicious infrastructure through embedded links.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=dibujarte+pdf+coleccion In PDF document text
    • http://files.haywardfitnessfanatics.com/uploads/1/3/0/8/130874413/dugen.pdfIn PDF document text
    • http://fidure.duffysdelivers.com/uploads/1/3/1/4/131482975/xuvosuniludus-wazizaganube.pdfIn PDF document text
    • http://files.leap-of-faith.blog/uploads/1/3/1/4/131437799/968336ee5ff836b.pdfIn PDF document text
    • http://files.niacurriculum.com/uploads/1/3/1/3/131398419/a3f64.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/1/0433/0687/7080/files/6735074847.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5288/3352/files/29982987231.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6336/2204/files/vovazinesubudapab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7480/4126/files/90197625268.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3947/3314/files/vajupekixiwipabe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9427/0371/files/13463362921.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1754/3588/files/jufasi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0361/6165/files/74483583549.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8255/5297/files/2628473619.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6997/2392/files/zupifajara.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4202/8182/files/56960516633.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1278/4277/files/79617944993.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8152/1560/files/nojaxorigemajusaga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/0412/0475/files/how_to_grow_your_discord_server.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_off00006bf8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BF8 5068 bytes
SHA-256: a821eebfd0568568c5a1bb3334818b4f6d1974801470055a949281c0a5ae8be4
font_01_sfnt_off00007d3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D3B 11840 bytes
SHA-256: 61cbcfa92a0d0f42826408141183dbd5e194692db2a29db986def8739efd3908
font_02_sfnt_off0000a323.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA323 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34