Malicious PDF — malware analysis report

Static analysis result for SHA-256 8202dc3447b8f6a9…

MALICIOUS

PDF

46.5 KB Created: 2020-07-27 04:44:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8d6dcc852af44fde76d1ba42a70b4975 SHA-1: f936600cc0a9af3cf9738f3fbe4c291a759ceae9 SHA-256: 8202dc3447b8f6a9646bf6f7a85d2a13ca666218c4df0ca1198ae44106726102
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains multiple heuristics indicating malicious redirection and a link farm, with a critical finding of a link to known malicious redirector infrastructure. The ML classifier also strongly flagged this PDF as malicious. The embedded link, 'https://ttraff.cc/pify?keyword=maryland+state+archives+guide+to+government+records', is designed to appear as a legitimate guide but redirects to a potentially harmful site, likely for phishing or malware delivery.

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=maryland+state+archives+guide+to+government+records In PDF document text
    • http://files.heel-strike.com/uploads/1/3/0/7/130776073/rodosobimerutoxoxo.pdfIn PDF document text
    • http://files.praktische-philosophie.org/uploads/1/3/0/7/130776067/d535c894f57a8.pdfIn PDF document text
    • http://files.cakemediahq.com.au/uploads/1/3/1/0/131070112/xowotadatixupawam.pdfIn PDF document text
    • http://files.brmreps.com/uploads/1/3/1/4/131407977/xugiv.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/1/0430/8461/1733/files/65240788234.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3862/9270/files/sonuwarobaruturexokifava.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1970/6269/files/6490035790.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8062/1985/files/dokajesolujomefip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2484/8795/files/faporepu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/9142282406.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1986/2179/files/wipodebokijat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1631/4277/files/gumojunaxedojivamifujukeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3480/4375/files/60579535169.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9032/1313/files/nisawomiboselawal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5847/1846/files/powizowexanu.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000078cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78CC 5404 bytes
SHA-256: e56fed2f8b2d62d7c02489498630101a6e6b58be65f05341d54b0d832888e0ce
font_01_sfnt_off00008b0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B0A 9800 bytes
SHA-256: fec2a32dd7261f758061a92d1eb6cbff4560f295eefd234d9e5b1809fd8a53f8