Malicious PDF — malware analysis report

Static analysis result for SHA-256 22c76b9ab35afa47…

MALICIOUS

PDF

53.2 KB Created: 2020-03-26 09:05:42 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: b105ab4f090a588471e0f32bab02e9f9 SHA-1: febd47073072b368fd4f307a1a050c556a55f468 SHA-256: 22c76b9ab35afa47d69d28f4b382180f517bfaf953a9f5ba04d342e36dcb0a93
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 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 corrupted, contains a URL that points to a specific HTML page and also lists numerous other PDF URLs. This suggests the document is designed to drive traffic to these external resources, likely for SEO poisoning or to host malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://blockchainambassador.ca/uploads/1/3/0/5/130540814/130540814.html#harry+potter+and+the+prisoner+of+azkaban+chapter+14+summary
    • http://saraenglephotography.com/uploads/1/3/0/6/130621361/sinoxoxolugo_viroza_tifevalosufuwi.pdf
    • http://train4safety.net/uploads/1/3/0/5/130590168/48ac8f8c.pdf
    • http://enneagramme-pearl.com/uploads/1/3/0/7/130776351/7014393.pdf
    • http://threadsolelife.com/uploads/1/3/0/5/130588686/4213267.pdf
    • http://brownrefugeetutoring.com/uploads/1/3/0/3/130312964/patebojunixetokumeje.pdf
    • http://www.classicdesignscabinetry.com/uploads/1/3/0/6/130621535/nuxixativag-bobovutabis-jutan-sosewo.pdf
    • http://webdisk.doggymobileapps.com/uploads/1/3/0/5/130588276/4afaf4f28811.pdf
    • http://nikmovies.com/uploads/1/3/0/4/130490328/8204277.pdf
    • http://luxairecares.net/uploads/1/3/0/3/130313495/decf548b.pdf
    • http://dinamicasistemica.com/uploads/1/3/0/7/130739256/zusekokisemud_wuxoser_tonazagarototud_dizamunovex.pdf
    • http://remote.supply/uploads/1/3/0/4/130478520/deziwesudepeno.pdf
    • http://shesewsalot.com/uploads/1/3/0/5/130543099/13050b.pdf
    • http://asiaticsports.com/uploads/1/3/0/9/130969525/vazojotirur.pdf
    • http://constructionchannel.org/uploads/1/3/0/2/130272613/6621103.pdf
    • http://trustcare247.com/uploads/1/3/0/6/130604562/rukasifonuki-piwiligivetex-vejedevezotib.pdf
    • http://www.spaziperabitare.com/uploads/1/3/0/6/130604061/075076c252.pdf
    • http://www.charlesandcharlesjrremodeling.com/uploads/1/3/0/5/130543262/67624.pdf
    • http://rebeccahelm.net/uploads/1/3/0/6/130605030/300515.pdf
    • http://mleilanikoehler.com/uploads/1/3/0/5/130551086/remuvejekapugob.pdf
    • http://tappchicago.com/uploads/1/3/0/8/130813934/fibok.pdf
    • http://benefitboost.org/uploads/1/3/0/8/130873863/8539ad5751.pdf
    • http://autodiscover.connectimacy.com/uploads/1/3/0/4/130488322/0dc79a1.pdf
    • http://greenforceone.co.uk/uploads/1/3/0/7/130738812/betisebo.pdf
    • http://sharonsmithsells.net/uploads/1/3/0/7/130740591/pakisukaposuwugupof.pdf
    • http://personalinjurylaw.attorney/uploads/1/3/0/5/130551239/pulidodekodaf.pdf
    • http://greenfor
    • 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_off0000a688.bin
ca51f9cd91101f8ca896c62a193d2cd94d216d9f4a468b8c3ecf804c496f2b26
pdf-font-stream PDF embedded font (sfnt) at offset 0xA688 8204 bytes