Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff32eb9ff8a8684c…

MALICIOUS

PDF

47.0 KB Created: 2020-05-22 13:20:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7bf7ef1058f74a2e31f7f0ec76b0f306 SHA-1: d3636eed0a591929bb47b7b086a5504ee2b69dd6 SHA-256: ff32eb9ff8a8684c588f04a11b3ed39f0631e70ae38b5853a81926858640572b
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, each hosting PDF files with numeric slugs, suggesting a link farm or SEO manipulation tactic. The embedded document body text, though partially corrupted, contains a URL that mirrors one of the identified external links. No scripts were extracted from this sample. The primary intent appears to be directing users to a wide array of external resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://3t8.undesirable.us/uploads/1/3/0/4/130436006/130436006.html#hot+lights+cold+steel+free PDF link annotation
    • http://aibaja.com/uploads/1/3/0/2/130289335/1195630.pdfIn PDF document text
    • http://landmarq.org/uploads/1/3/0/8/130813764/todukaxu_dureguro_rabane.pdfIn PDF document text
    • http://lawenforcement.services/uploads/1/3/1/6/131606492/396230.pdfIn PDF document text
    • http://breakwaterministries.org/uploads/1/3/0/8/130873997/75fa1.pdfIn PDF document text
    • http://lifeoutlines.com/uploads/1/3/0/6/130605381/2525678.pdfIn PDF document text
    • http://fredericklewis.info/uploads/1/3/1/3/131378990/9b4d8d428.pdfIn PDF document text
    • http://hostmaster.getoveryourchildhood.com/uploads/1/3/0/3/130379098/cc106cdb.pdfIn PDF document text
    • http://diamondsupplements.com/uploads/1/3/0/5/130551464/8963152.pdfIn PDF document text
    • http://celtekk.com/uploads/1/3/0/4/130488322/fa4775bac36fc.pdfIn PDF document text
    • http://purchasetheroi.com/uploads/1/3/0/6/130640150/e0b95fd99ad.pdfIn PDF document text
    • http://boilersmakeducks.com/uploads/1/3/1/6/131606135/satofasixotu-zenukisakopoda.pdfIn PDF document text
    • http://larissa.studio/uploads/1/3/0/6/130639452/9018355.pdfIn PDF document text
    • http://bohoboutique.org/uploads/1/3/0/5/130588763/2947863.pdfIn PDF document text
    • http://cherillee.com/uploads/1/3/0/9/130969036/juzupafatuluwokome.pdfIn PDF document text
    • http://grantvogelmusic.com/uploads/1/3/0/2/130292110/624c8b6.pdfIn PDF document text
    • http://pcaregionalconference2019.com/uploads/1/3/0/3/130323185/f0dd54ea9314186.pdfIn PDF document text
    • http://god-ok.com/uploads/1/3/1/1/131163834/daxomukel-disutidugaboxat.pdfIn PDF document text
    • http://nicoledavis.org/uploads/1/3/0/7/130775328/091fc66ca57648d.pdfIn PDF document text
    • http://yourbestrealestateoption.com/uploads/1/3/0/6/130603918/58e9a942.pdfIn PDF document text
    • http://seadragonstyle.com/uploads/1/3/1/3/131379824/8f117f9.pdfIn PDF document text
    • http://faithforinternationalassistance.org/uploads/1/3/0/7/130775361/146716.pdfIn PDF document text
    • http://victoriaknappstyled.com/uploads/1/3/0/2/130272452/pelegiseni-zaresafovibu-rurujekus.pdfIn PDF document text
    • http://firepreventionsolutions.org/uploads/1/3/1/0/131070774/revodur_gumese_bemun_lawefejuxutizuv.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008d52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D52 10152 bytes
SHA-256: 8e63c78e129f4a13447bf9b43fd0fa11254a9174b8929568f42a836b4a49f4d9

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