Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a09d2f70283448d…

MALICIOUS

PDF

118.3 KB Created: 2020-08-04 10:07:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d442c639437177f3531a4ee809fbe9d5 SHA-1: e7b5658629da8e860f40c68127788403eb584c0d SHA-256: 1a09d2f70283448d89966fe90bb2f578d96097bed628360af76e738f713a1d3b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=ampicilina+sulbactam+bula+pdf'. Additionally, a PDF SEO link farm heuristic indicates the document is part of a larger infrastructure for distributing malicious PDFs. The document body, though heavily obfuscated, contains remnants of the URL and appears to be a lure for an advance-fee scam, as indicated by the 'SE_ADVANCE_FEE_SCAM_LURE' heuristic. The primary intent appears to be redirecting users to malicious content.

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=ampicilina+sulbactam+bula+pdf In PDF document text
    • http://files.bonafidecatering.com/uploads/1/3/1/6/131606652/4a647.pdfIn PDF document text
    • http://files.didsburyjuniors.com/uploads/1/3/2/6/132681824/maxipupamekep.pdfIn PDF document text
    • http://files.visiblechurchgb.com/uploads/1/3/1/3/131381021/f2b47e124bac4.pdfIn PDF document text
    • http://files.koshtex.com/uploads/1/3/1/6/131606822/378629.pdfIn PDF document text
    • http://files.globalexplorertravel.com/uploads/1/3/1/3/131380591/dalemotitaz-pofutoge-fogisurafufe-togomesusupot.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/1/0440/4684/4054/files/70274039477.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5702/8001/files/general_characteristics_of_phylum_echinodermata.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/8273818996.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8100/6244/files/auditing_legislation_and_standards_2020_2nd_edition_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9187/7283/files/ziwigifa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wudusojixidotivage.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3076/4968/files/widagutakekabog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5802/7928/files/venezeseri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1431/4405/files/wuselosulajeli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2136/8482/files/vodebefumamuxexitutijak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2522/6133/files/nelifukut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/78683638278.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9754/7157/files/selavadusajedomexaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8424/3351/files/10668876832.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8238/2502/files/32693762121.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00016cea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16CEA 5332 bytes
SHA-256: e382e784c313108e47aa3cd7e687554233eaf7d402e39a6a51932f3fc455f38d
font_01_sfnt_off00017ef9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17EF9 17708 bytes
SHA-256: c8b61003b0d4129ebdc5a557f85cfbf6265fd3a1ccaa1518b066c91f6304ff19
font_02_sfnt_off0001b563.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B563 16268 bytes
SHA-256: 093ae7a69d19df335f57ecf9dce9beca2e3ffe669117e1d3cc05cb486a9df350

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