Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5289e80b2f95ed6…

MALICIOUS

PDF

39.8 KB Created: 2020-08-22 07:43:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 15a458e80451965d495912e3267ae282 SHA-1: 733759111b370aa4c72998209ada025749ad25e4 SHA-256: b5289e80b2f95ed662e614e14dda6339ad6157172e597b161647e97bb5fe25cd
202 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting a phishing or malware distribution attempt. The embedded content, though heavily obfuscated, contains a URL that points to a redirector service, likely intended to lead the user to download unwanted software. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.com/pify?keyword=adaway+pro+apk+latest In PDF document text
    • http://tuxexa.codyjwoods.com/uploads/1/3/2/8/132814930/konebopopexuwidu.pdfIn PDF document text
    • http://files.cameronayres.com/uploads/1/3/1/0/131069915/fitaloxojewiw.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/1/0437/6766/0706/files/43899868149.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5936/3478/files/lavodefabesoduferi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0166/6969/files/vumebivanuzokopiwef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0458/3289/6675/files/deschutes_river_fishing_report_odfw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1065/2317/files/27268952443.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0458/6120/8217/files/free_budget_excel_spreadsheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6459/7397/files/string_to_decimal_python.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7954/8574/files/64127175429.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1355/1781/files/81784519377.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3966/7877/files/gudiwapuluvaraxapa.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 3

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_off00005f08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F08 5200 bytes
SHA-256: 36ba6d8d2726be578841fcc11a6bba248dfa766403aee9a5e1eefa4c46a55363
font_01_sfnt_off000070de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70DE 10012 bytes
SHA-256: b3bdd3a7f34e5858599a10a7a784695eb1a0d34168a066ddb749b36a68c3f8ad

Open this report in the interactive analyzer, or submit your own file for analysis.