Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b88a7ba3862aa6f…

MALICIOUS

PDF

37.7 KB Created: 2020-05-15 12:44:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7fda273412c95506f4db546da5755992 SHA-1: d17c810e2a306e72c16daff0d9b1d5b1f7b76508 SHA-256: 1b88a7ba3862aa6fe546e16afe752fc87dc40f0e58da9c71c65277a9e92ada74
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or SEO manipulation tactic. The document body contains a title related to 'Alarm ringtone naa song' and metadata indicating it was generated by wkhtmltopdf, which is often used to create PDFs for SEO purposes. The primary intent appears to be driving traffic to these external URLs, potentially for malicious redirection or content distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://hello-baby-toys.com/uploads/1/3/0/8/130814575/130814575.html#alarm+ringtone+naa+song PDF link annotation
    • http://qsimspacetime.com/uploads/1/3/1/3/131383599/liwawowajasi.pdfIn PDF document text
    • http://straightthegate.org/uploads/1/3/1/3/131398498/juwipatewapom-rovag.pdfIn PDF document text
    • http://fayotopia.com/uploads/1/3/0/6/130639407/b63ba81f336e.pdfIn PDF document text
    • http://empowerment-time.com/uploads/1/3/0/7/130776027/d5aa0a93077a.pdfIn PDF document text
    • http://buscoabogadobueno.com/uploads/1/3/0/6/130621686/8277976.pdfIn PDF document text
    • http://letooschuss.com/uploads/1/3/0/9/130969231/5327190.pdfIn PDF document text
    • http://downsyndromeinnovations.org/uploads/1/3/0/4/130435826/c05b2a.pdfIn PDF document text
    • http://owensoundlaserclinic.com/uploads/1/3/0/7/130739557/lepimepipawapam.pdfIn PDF document text
    • http://axiom-fusion-sponsor.com/uploads/1/3/1/8/131856446/2932394.pdfIn PDF document text
    • http://resincontractslimited.com/uploads/1/3/0/7/130739952/magekime_bigukidaj.pdfIn PDF document text
    • http://mainlymassage.net/uploads/1/3/0/8/130874175/nuzozulagiro-luwok-wivaxu.pdfIn PDF document text
    • http://earthwindandtires.com/uploads/1/3/0/7/130739068/2553168.pdfIn PDF document text
    • http://ventrallearning.com/uploads/1/3/0/4/130492127/muramufumutole.pdfIn PDF document text
    • http://andrewandsons.org/uploads/1/3/1/3/131380316/dexurunaliwonu_vadogunovib_zilivid.pdfIn PDF document text
    • http://giltnercareers.com/uploads/1/3/1/1/131163733/5775882.pdfIn PDF document text
    • http://thealchemistlifecoach.com/uploads/1/3/0/5/130539497/nasiriluwuj.pdfIn PDF document text
    • http://painterpro62.com/uploads/1/3/0/8/130874591/movozuwoperemuw-jobifudujilu-xanura-garanodimuvi.pdfIn PDF document text
    • http://econoat-alliance.com/uploads/1/3/0/9/130969172/7d215b95f5240.pdfIn PDF document text
    • http://moonchildtarot.ca/uploads/1/3/1/3/131378806/1837814.pdfIn PDF document text
    • http://massagebyanj.com/uploads/1/3/0/5/130550835/30d7fd96a628295.pdfIn PDF document text
    • http://sahurontheroodantimailings.com/uploads/1/3/1/1/131163846/puxaxiz.pdfIn PDF document text
    • http://3islandsdesigns.com/uploads/1/3/0/4/130477110/pavot_pimivut_vamab_wigeta.pdfIn PDF document text
    • http://christenwindsorsolberg.com/uploads/1/3/1/4/131408248/vajezapowo_virera_vawuguwo_wisovunutaru.pdfIn PDF document text
    • http://summerboone.ca/uploads/1/3/1/3/131380138/posevujubedaxojewo.pdfIn PDF document text
    • http://jessicaschafer.ca/uploads/1/3/1/4/131483386/paxig_lozovevogofoke_wujewo.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 2

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_off000066f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66F3 10392 bytes
SHA-256: aa785a86f919961b9d58a2bbd1737092c4b96e3117a05cc1d2e6e2914dba86c4

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