Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f9c2343e0e593fb…

MALICIOUS

PDF

35.4 KB Created: 2020-03-18 02:56:08 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2026-05-09
MD5: ad57a26c83c50f47bff601b8c65df2f0 SHA-1: af2a9030c52b264d592e6957f0b8ac4c89f93b64 SHA-256: 7f9c2343e0e593fbdf864a1e7fc3a308370ff9fa0ed3952da0aa612a79e5c863
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of external links to various domains, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious with high confidence. The document body contains garbled text and a single URL that is also present in the list of external links. The primary attack pattern appears to be SEO manipulation or hosting malicious content via a link farm.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://handymanbrandonco.com/uploads/1/3/0/6/130621575/130621575.html#sungwoon+tell+me+i+love+you+lyrics PDF link annotation
    • http://picturecatcher.com/uploads/1/3/0/2/130272232/5453110.pdfIn PDF document text
    • http://seniors-shop.com/uploads/1/3/0/3/130379087/bafavusixive.pdfIn PDF document text
    • http://mybulletproofart.com/uploads/1/3/0/3/130379363/8936231.pdfIn PDF document text
    • http://dsabids.com/uploads/1/3/0/7/130775275/kufopijulasizamasep.pdfIn PDF document text
    • http://hostmaster.flcv.org/uploads/1/3/0/6/130605174/fa24e289a6bc.pdfIn PDF document text
    • http://www.kevinwpowers.com/uploads/1/3/0/4/130483491/4688393.pdfIn PDF document text
    • http://noahguystaffing.com/uploads/1/3/0/7/130776587/ropolotu-bipirez.pdfIn PDF document text
    • http://kuechenmeister-schuhe.de/uploads/1/3/0/6/130640102/kuvogifurubek_tomoputi_xululazej.pdfIn PDF document text
    • http://friendsofcherryvalleylibrary.org/uploads/1/3/0/7/130776418/893271.pdfIn PDF document text
    • http://nickumelectric.com/uploads/1/3/0/6/130639498/b6f9a.pdfIn PDF document text
    • http://www.chrisramseyart.com/uploads/1/3/0/5/130541462/junarekenazopimuw.pdfIn PDF document text
    • http://myeutv.online/uploads/1/3/0/7/130775002/nogusufasudizu-munitowebuvib.pdfIn PDF document text
    • http://positivelygroovy.net/uploads/1/3/0/2/130272955/pifikideraxaxixovoj.pdfIn PDF document text
    • http://ns3.becksusedappliances.com/uploads/1/3/0/5/130551235/4592fdc95c9b7.pdfIn PDF document text
    • http://www.calendar.ladyfred.com/uploads/1/3/0/2/130291766/puxix.pdfIn PDF document text
    • http://jnrconstruction.net/uploads/1/3/0/6/130621717/tutowotexegu-vavulitemos-lodolunagoj.pdfIn PDF document text
    • http://jjlliving.com/uploads/1/3/0/8/130874156/7804204.pdfIn PDF document text
    • http://ingridsolbrig.com/uploads/1/3/0/7/130739747/fugosuwep.pdfIn PDF document text
    • http://flaviosalon.com/uploads/1/3/0/5/130541552/4750682.pdfIn PDF document text
    • http://texashelicopterhoghunting.com/uploads/1/3/0/5/130539344/womebop.pdfIn PDF document text
    • http://cpanel.mandelnewman.com/uploads/1/3/0/3/130323268/7ad70a12895a.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

Related samples 1

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

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000062e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62E2 7668 bytes
SHA-256: 499d29c76e32b54db163fb19cded30041bba8a9bb44a1e2f2f71a577a82051bd

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