Malicious PDF — malware analysis report

Static analysis result for SHA-256 138dbfa4a3180990…

MALICIOUS

PDF

44.5 KB Created: 2020-08-09 18:38:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3efee4efcee9c5add63205932a6b7f12 SHA-1: d5af018925c90d799bf0401e9adc577d6fb2e2a3 SHA-256: 138dbfa4a318099072206fa9da5397ad48cedea745f9eb5662a877cc664e794e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains multiple links to external PDF files, presented as a 'link farm' and a lure for 'banting recipes'. One of the primary links directs to a known malicious redirector infrastructure at 'https://ttraff.cc/pify?keyword=banting+recipes+pdf'. This suggests a phishing or scam campaign aiming to redirect users to malicious content. No scripts were extracted from this sample.

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=banting+recipes+pdf In PDF document text
    • http://files.orthodoxservantleaders.com/uploads/1/3/1/4/131407552/redibafemejuxi_vudovirabax.pdfIn PDF document text
    • http://files.connect4faith.org/uploads/1/3/1/3/131380263/fomokasafef-niluduroduki.pdfIn PDF document text
    • http://files.capefalconkayaks.com/uploads/1/3/1/4/131453618/c99b305923.pdfIn PDF document text
    • http://files.pack50cubs.org/uploads/1/3/1/4/131453060/zafaduwori-badegu.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/1/0434/5433/3093/files/68588136426.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4923/8184/files/xujivazedujised.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0495/2735/files/winenojemafefetekidedovo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3757/9674/files/fax_cover_sheet_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2567/7982/files/lasanasigujaxulefiberepip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0982/6213/files/60794677198.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0835/2679/files/home_buying_process_flowchart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1052/2277/files/buzesuloxekof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6772/8279/files/acute_pancreatitis_scoring_systems.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5040/1945/files/nezijugukagoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4042/1541/files/8_weeks_to_sealfit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7532/9441/files/asymptote_of_hyperbola.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 5

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_off00006f64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F64 5340 bytes
SHA-256: 98de7516fd9930b4330a8282ec2fb804839b17c7c32e1fad99b57e3547e66260
font_01_sfnt_off000081a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81A2 10384 bytes
SHA-256: c1322cc5846800d455cb1c8b8e62641d143664b7483ab87e16356acbe53bdf57

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