Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d3266e7fb11069d…

MALICIOUS

PDF

47.4 KB Created: 2020-05-04 00:15:30 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2026-05-08
MD5: 3cd1f043a15d78a4b19a10cfe926b8c2 SHA-1: 1c0d73f85166a300a4df4b29c4cea12c7cf69966 SHA-256: 7d3266e7fb11069d2d854fb306f95bb10e96336b7a3a22039cf88aa22cd97644
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, many of which appear to be generated for SEO purposes, indicating a link farm. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' suggests that the document may be intended to trick users into believing they need a password to access an archive, a common tactic to bypass security scanners. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://drobgyn.net/uploads/1/3/0/7/130738936/130738936.html#aeroacoustics+goldstein+pdf PDF link annotation
    • http://xpertitconsultingllc.com/uploads/1/3/1/3/131379295/tokipadelaf_mipek_dezexurike_teteluruneji.pdfIn PDF document text
    • http://ahteam.es/uploads/1/3/1/4/131405934/fabutupuxap-vodawevi-paxivakibedixuj-kaxofawolel.pdfIn PDF document text
    • http://accordinvestmentsllc.com/uploads/1/3/0/8/130814120/fofaxoxal.pdfIn PDF document text
    • http://jriveraonline.com/uploads/1/3/1/4/131406086/4785513.pdfIn PDF document text
    • http://ibeautytansalon.com/uploads/1/3/0/7/130775668/1381654.pdfIn PDF document text
    • http://voteallison.com/uploads/1/3/0/6/130620772/e98c27a97c78.pdfIn PDF document text
    • http://ehmhomeloans.com/uploads/1/3/0/6/130620858/311113.pdfIn PDF document text
    • http://ealawrayauthor.com/uploads/1/3/0/2/130291434/jejunulab-wofuj-gevalad.pdfIn PDF document text
    • http://devonopera.com/uploads/1/3/1/3/131380606/nivijixeka.pdfIn PDF document text
    • http://patersistersbeachvolleyball.com/uploads/1/3/0/2/130270779/lagud.pdfIn PDF document text
    • http://toolboxjoe.com/uploads/1/3/1/4/131453871/defufajixed.pdfIn PDF document text
    • http://jinenkan.org/uploads/1/3/1/4/131437341/5262089.pdfIn PDF document text
    • http://brittaniesworld.com/uploads/1/3/0/2/130273896/2065355.pdfIn PDF document text
    • http://bambusaglobal.com/uploads/1/3/1/3/131379225/3476950.pdfIn PDF document text
    • http://xenyodame.com/uploads/1/3/0/8/130874161/gaveza_livejasete_noxukukoverum.pdfIn PDF document text
    • http://swifthop.net/uploads/1/3/0/3/130324050/pobina_libajepesoju_leroj.pdfIn PDF document text
    • http://maryhelenmoses.com/uploads/1/3/0/6/130620823/moleveme.pdfIn PDF document text
    • http://new-england-marketing.com/uploads/1/3/0/8/130814966/lepulaneba.pdfIn PDF document text
    • http://promot.es/uploads/1/3/0/5/130538875/8261432.pdfIn PDF document text
    • http://paige-elizabeth-allen.com/uploads/1/3/0/7/130775652/xirijuw.pdfIn PDF document text
    • http://sippingallovertheworld.com/uploads/1/3/0/4/130483794/9322055.pdfIn PDF document text
    • http://thelakecampground.com/uploads/1/3/0/6/130639532/4a5f502.pdfIn PDF document text
    • http://erinbaile.com/uploads/1/3/1/4/131407812/7874596.pdfIn PDF document text
    • http://brenhamfoundationrepair.com/uploads/1/3/0/7/130739621/witul.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/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
🗂 Part of campaign: gaskeun.com 3 samples

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_off00008c8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C8B 11172 bytes
SHA-256: e9872e786a846d6105304e46f6eb58aa8ec3eb3349658898ccd52936d45ed0a0

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