Malicious PDF — malware analysis report

Static analysis result for SHA-256 226c7cb98e23b5ec…

MALICIOUS

PDF

54.6 KB Created: 2020-03-30 09:55:00 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: ac4fbeae41663837b3cc05e20c2e5277 SHA-1: f142d5f499991d8f4a62faa69fc9c3f1e0aef533 SHA-256: 226c7cb98e23b5ec4da7ffa7cadebe494785207811b4468bfd3104abc5719a5b
92 Risk Score

Malware Insights

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

The PDF contains a large number of external links, a technique often used for SEO poisoning or to redirect users to malicious sites. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the PDF structure and numerous external links suggest a delivery mechanism for further malicious content or phishing attempts.

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://thehnossaproject.com/uploads/1/3/0/4/130435881/130435881.html#the+robber+bridegroom+eudora+welty
    • http://staffingstarsllc.com/uploads/1/3/0/8/130874139/diberorumijol.pdf
    • http://caseycipollone.com/uploads/1/3/0/5/130590200/1343446.pdf
    • http://castaliahealth.com/uploads/1/3/0/6/130621404/4472329.pdf
    • http://augrio.ai/uploads/1/3/0/9/130969353/donijamewoju.pdf
    • http://alliancerestorationkc.com/uploads/1/3/0/2/130289530/mozevafutep.pdf
    • http://mail.saicsf.org/uploads/1/3/0/9/130969277/a36f80.pdf
    • http://renusharmakathak.com/uploads/1/3/0/7/130776201/6258700.pdf
    • http://heirstothethronecollection.com/uploads/1/3/0/2/130289549/levefejalix-zoximonut.pdf
    • http://monolid.net/uploads/1/3/0/5/130543600/6380956.pdf
    • http://bowtiesandgoldboots.com/uploads/1/3/0/2/130289353/zobifizozatilo.pdf
    • http://episcopalgenesis.org/uploads/1/3/0/4/130483480/0876d76554c2bd.pdf
    • http://trebermuda.com/uploads/1/3/0/5/130588480/acac8c8.pdf
    • http://takanomarketing.com/uploads/1/3/0/6/130603810/4353887.pdf
    • http://anbarmonitor.com/uploads/1/3/0/6/130639222/6266751.pdf
    • http://anuep.com/uploads/1/3/0/6/130620793/9cd2344.pdf
    • http://organizedginger.com/uploads/1/3/0/5/130550832/pamigikavegodaf.pdf
    • http://penncrossknoll.com/uploads/1/3/1/0/131070190/577404.pdf
    • http://lifeiskito.com/uploads/1/3/0/5/130589115/bekupabuw-keniwipewo-kovaniwefajud-neguwekagaxadoz.pdf
    • http://smartlineelectric.com/uploads/1/3/0/5/130588162/joxuso.pdf
    • http://starrlightimages.com/uploads/1/3/0/8/130873784/9115417.pdf
    • http://partneringwithentrepreneurs.com/uploads/1/3/0/5/130588221/menuvevebuta.pdf
    • http://foodallergyepidemic.org/uploads/1/3/0/8/130814576/jupimibipakefi.pdf
    • http://biozt.net/uploads/1/3/0/4/130483236/waxokexu_lifigivoge_simakakiger_nelidojazone.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_off0000add1.bin
ff2466d04b709f36bba1d36713eff68db3686ba7df54ec679dac604f3a7d2f8b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xADD1 7744 bytes

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