Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cafba115738980d…

MALICIOUS

PDF

44.8 KB Created: 2020-08-08 18:45:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 63860f7d3d4419da71ee82e0eac3647a SHA-1: 598b3dfafc02ef97b544da46aeb58d431410ae1e SHA-256: 2cafba115738980d3e4363813dd758d7f8c31768d5591be27692a0cb47b7d7f6
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one identified as a malicious redirector. The document body, though partially corrupted, includes text related to 'iala maritime buoyage system pdf' and references to 'wkhtmltopdf', suggesting a lure document. The primary malicious URL, https://ttraff.cc/pify?keyword=iala+maritime+buoyage+system+pdf, is likely used to redirect users to a phishing or scam page. Numerous other PDF links were found, many hosted on Shopify, indicating a potential link farm or content distribution network used to host malicious files.

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.cc/pify?keyword=iala+maritime+buoyage+system+pdf In PDF document text
    • http://files.rockbustofleet.com/uploads/1/3/1/3/131381422/wulasadajazu_nabox.pdfIn PDF document text
    • http://wunol.finewatergems.com/uploads/1/3/2/6/132695492/luxukika.pdfIn PDF document text
    • http://files.message6666.com/uploads/1/3/1/4/131406140/tijiwus-voxoporava-fedowum-disojum.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/1/0433/0687/7080/files/46496449222.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9013/0584/files/affidavit_of_heirship_california.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4697/7179/files/lidenefu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0056/0805/files/fajaxujoga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4929/4756/files/construction_office_manager_job_description.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8153/9489/files/92997152089.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7088/1946/files/64395272308.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4090/6135/files/xivinowo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2259/6768/files/76126387478.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1113/5894/files/mekamotatoka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nifafujejugafux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4160/4263/files/kimegelenalibof.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_off00007177.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7177 5540 bytes
SHA-256: 248830f975af13522df03fb28bdd1b65ec95037c4611dad9f3ce678482c09478
font_01_sfnt_off0000843c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x843C 9928 bytes
SHA-256: e4779ff492eae7f3b12f0f29c570a63a2906e2f9ad65fd17c0eab86f68de0258

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