Malicious PDF — malware analysis report

Static analysis result for SHA-256 6aa2570452b5bb4d…

MALICIOUS

PDF

42.9 KB Created: 2020-08-22 10:49:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3ff8d33db98e7edc7ffbaa435a78d553 SHA-1: 5627a9411d100b3c8692a1122bcd788999dd0e55 SHA-256: 6aa2570452b5bb4d82f127489d77443cc374ce1c4b661c460144ee8b2c70aa8b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links designed to appear as free downloads, but the primary link redirects to a known malicious redirector. This suggests a phishing or scam attempt to lead users to malicious content. The ML classifier strongly indicated maliciousness, and the presence of a redirector URL reinforces this assessment.

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.ru/pify?keyword=apache+hadoop+cookbook+pdf In PDF document text
    • http://xirim.cathyanneross.com/uploads/1/3/2/7/132712116/wikib.pdfIn PDF document text
    • http://files.luxesalonmaui.com/uploads/1/3/1/3/131378985/850932.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/1/0439/2042/5115/files/red_tide_report_siesta_key_fl.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9104/9115/files/13940077446.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7410/1160/files/vidumeperelupesat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5719/3895/files/42223523518.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9245/1235/files/niwomorago.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4378/1792/files/apostila_de_coquetelaria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9105/8070/files/xukazi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1638/7733/files/56166034254.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2250/0518/files/64047855563.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0008/5149/files/69842449593.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5489/1161/files/i_cherish_you.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3734/9272/files/evinrude_88_spl_manual.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 2

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_off00006af5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AF5 5132 bytes
SHA-256: 44221294837db2d7f6ebdbaba43f576f492389233b6f0f01dc7799401492227c
font_01_sfnt_off00007c5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C5D 10184 bytes
SHA-256: 029ee2236d2d0ef0a5a7f594accc245a2678ae05ea244604ff06354ec9add82f

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