Malicious PDF — malware analysis report

Static analysis result for SHA-256 36257452cbb17698…

MALICIOUS

PDF

42.3 KB Created: 2020-05-25 14:29:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9fbce6e4d23c4f00cd4f08bfbfb9688c SHA-1: e2e7e976f91b6858d4747ddcb6b96beca9de7a83 SHA-256: 36257452cbb176980fe55a8c193769eacfe895a9ac35a094739d448b20fa1208
92 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. The document body, though partially obfuscated, contains references to a 'Nissan juke 2016 manual' and numerous URLs pointing to PDF files on various domains. This suggests a link farm or SEO manipulation tactic, potentially used to distribute malicious content or drive traffic to attacker-controlled sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • 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
  • 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://thonon-athletisme.com/uploads/1/3/0/9/130969216/130969216.html#nissan+juke+2016+manual
    • http://pattyherrera.guru/uploads/1/3/0/7/130775111/tukuvibidolodo.pdf
    • http://mediclear.net/uploads/1/3/0/3/130379461/vebinozed.pdf
    • http://promailboxetc.com/uploads/1/3/0/6/130604091/1924565.pdf
    • http://gunnetshovalgroup.com/uploads/1/3/0/7/130775916/fofikegomomiv.pdf
    • http://kewosteopath.co.uk/uploads/1/3/0/6/130621451/joxuwepudezapiw.pdf
    • http://webdisk.jeffreymorabito.com/uploads/1/3/1/4/131438155/fefovirosewog.pdf
    • http://partybandcentral.net/uploads/1/3/0/3/130379814/fe13e73d355b2.pdf
    • http://emmaelizabethphotography.com/uploads/1/3/1/4/131483371/zijeji.pdf
    • http://haulingarizona.com/uploads/1/3/1/3/131380433/dinamuwi-gomawufigulu-lowafivesadoja-jafesexu.pdf
    • http://connormooregriffith.com/uploads/1/3/0/2/130272591/410bc.pdf
    • http://webdisk.naturalborninsomniac.com/uploads/1/3/0/7/130775393/setirutegamatiwa.pdf
    • http://steelconsultingservices.com/uploads/1/3/0/5/130539287/mosarigaxafukaj.pdf
    • http://boneandjointdocs.com/uploads/1/3/0/6/130639336/e16b187.pdf
    • http://safedrycincinnati.com/uploads/1/3/1/4/131452842/ketaju.pdf
    • http://fullballfitness.com/uploads/1/3/0/4/130476308/11e38ef.pdf
    • http://admin.ukbonsaiassoc.org/uploads/1/3/0/6/130639757/xosusedowonevo.pdf
    • http://shoogleconsultancy.com/uploads/1/3/0/4/130483114/natawizupisine.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007a13.bin
bfe93f435501b76dcf6e6f7c5c3afe0f858135c1fb2894de6f5da8fca842aaec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A13 10496 bytes

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