Malicious PDF — malware analysis report

Static analysis result for SHA-256 a69512b1082d7bfd…

MALICIOUS

PDF

42.6 KB Created: 2020-08-10 06:31:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b1df36c95531e9692551307ba1221b6e SHA-1: d06c312286424a1f3148021ff677289f5255f5d0 SHA-256: a69512b1082d7bfda8263caebe685d6f7e6ebdb327ddb6efbddd2e1874108f2f
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying a malicious redirector URL (https://ttraff.cc/pify?keyword=mandatario+aduanal+pdf). This suggests the document's primary purpose is to redirect users to malicious infrastructure. The presence of a large number of external PDF links, many hosted on cdn.shopify.com, indicates a link farm or SEO poisoning attempt to improve search engine ranking for malicious content. The ML classifier strongly supports the malicious nature of this PDF.

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=mandatario+aduanal+pdf In PDF document text
    • http://files.chinesemartialartsmd.com/uploads/1/3/1/0/131071243/6620346.pdfIn PDF document text
    • http://files.ksobha.com/uploads/1/3/1/4/131453214/lugukitola-legepuso-nunux.pdfIn PDF document text
    • http://files.mississippimudkennels.com/uploads/1/3/1/8/131872054/9ff3116e5e28778.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/1/0432/5172/8546/files/xesubulebomi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5107/4214/files/bunixugugixof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/36283751979.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1458/6521/files/55394092274.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2041/8198/files/volunimonuriwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4633/0791/files/dexufuruzokabikusuwaveke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1329/7560/files/pogewipol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5214/6587/files/fawumediwule.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0159/3507/files/dubaforewivonunobo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6939/0500/files/rereruxazosila.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4551/7469/files/74629671008.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0256/7588/files/97098379232.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0688/6051/files/literal_and_figurative_language_examples.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 8

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_off0000658d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x658D 4864 bytes
SHA-256: a004f5925258eb355c47bcea345c6f5e35d12d61149092a273ffbf7c9f671d4d
font_01_sfnt_off00007635.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7635 11560 bytes
SHA-256: 4242b2fba3b51b511820b9255f5f264036bafce5026655f3591f4a10f834b625

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