Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b8f9793fe0684b6…

MALICIOUS

PDF

54.2 KB Created: 2020-08-04 02:25:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b07bab6d399863673127bddc0659c069 SHA-1: 4111fc32c0e1e73bfcf75b710f37a2fcdbf16dc4 SHA-256: 5b8f9793fe0684b69cb1b2c3157cf6f07868549ec2fed12864b86e29c06efb62
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links, with one prominently leading to a known malicious redirector infrastructure at 'ttraff.cc'. The document body and heuristics indicate a lure related to 'administracion financiera internacional pdf', suggesting a phishing or scam attempt. The presence of numerous external PDF links, many hosted on Shopify, further supports the idea of a link farm designed to distribute malicious content or phish for credentials.

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=administracion+financiera+internacional+pdf In PDF document text
    • http://files.careerhighschool.org/uploads/1/3/0/7/130775150/tifekunug.pdfIn PDF document text
    • http://files.clayassociates.org/uploads/1/3/1/6/131606758/gajoxi.pdfIn PDF document text
    • http://files.gamblefamilyquarterhorses.com/uploads/1/3/1/4/131406507/xikojorimiwekiv.pdfIn PDF document text
    • http://files.frenellesangalang.com/uploads/1/3/1/4/131437978/jeweg.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/1/0436/4494/4542/files/lugakisi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5382/5704/files/95975859675.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kemulubu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3105/1943/files/59538067365.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7622/3129/files/73440672054.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3142/8248/files/wonipuranijafufofedasew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3966/1981/files/67402893274.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5663/5804/files/zepurorisavutomoto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3518/7605/files/60272006218.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8493/8390/files/64054504414.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7049/6672/files/15795961797.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2385/7824/files/81370665213.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 7

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_off0000933e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x933E 5288 bytes
SHA-256: 5c0addb65fcdc3d997e6810455424aa227042025225c412b2fe35736f25c6fc6
font_01_sfnt_off0000a528.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA528 11428 bytes
SHA-256: e25df05dbf21a0fd4beb0ebf4e570550df901951bd82c4e1ec001143c667a1c7

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