Malicious PDF — malware analysis report

Static analysis result for SHA-256 2841faf1d7de7aea…

MALICIOUS

PDF

34.0 KB Created: 2020-08-22 11:19:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f356acc9c4feb6a68a4cff65615fabba SHA-1: eacbe9c74d6d691b7619525fec8c461da9df127a SHA-256: 2841faf1d7de7aea6caa9399baafb041b4fd41531ee6730b81d00b3a0a5b0279
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body also contains numerous links to external PDFs, as flagged by PDF_SEO_LINK_FARM. The ML classifier also strongly indicated maliciousness. The primary malicious IOC is the redirector URL.

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.com/pify?keyword=the+economist+intelligence+unit+country+report In PDF document text
    • http://files.martinehrensvard.com/uploads/1/3/1/6/131637570/paganutu_tamavoxuvaliw_xuvefudinegawup_sovux.pdfIn PDF document text
    • http://files.adornkids.com/uploads/1/3/1/8/131859042/8c6a60be6fa.pdfIn PDF document text
    • http://rafil.fraclan.com/uploads/1/3/0/7/130739086/xaxoluvu.pdfIn PDF document text
    • http://dosepidag.treatingcbs.com/uploads/1/3/1/1/131163664/tarajix.pdfIn PDF document text
    • http://sinipofaw.paddyperring.com/uploads/1/3/1/3/131398140/5007381.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/1/0432/1312/7844/files/keep_running_home_to_you_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6617/1297/files/flor_de_leyendas_alejandro_casona_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9021/5073/files/lidonigusu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3178/1791/files/10578108547.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0154/3831/files/37088046663.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3491/8568/files/veripabinodiwireti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8982/9800/files/fotibofaxekulugifo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8005/5965/files/bluebeard_s_egg_margaret_atwood.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6566/1845/files/21665216851.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4229/0336/files/kajexapasepalebasez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4029/8392/files/bronkiolitis_adalah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8134/3903/files/48370543514.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 8

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_off0000493e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x493E 5188 bytes
SHA-256: f6131b6491a234d1cc41dc6f4de6c8b5562522281c9c6d616185658d01a3177b
font_01_sfnt_off00005abf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ABF 9376 bytes
SHA-256: 188c7653577624b4010a4e78f3fc8b7b69b843749d5513f14cedfe10a8cefbe6

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