Malicious PDF — malware analysis report

Static analysis result for SHA-256 f25b52304ef3b11d…

MALICIOUS

PDF

39.5 KB Created: 2020-05-16 06:56:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9efb869d463520a7af56b7d141c90edc SHA-1: 9c3f940e81fbc99242a43b6aaa9a147989f7b05b SHA-256: f25b52304ef3b11d67d1fff302990b925e8a53f64725b50a8cd7defc52285e56
92 Risk Score

Malware Insights

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

The PDF contains numerous external links, many of which are numerically or generically named, indicating a link farm strategy. The ML classifier strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains references to URLs that are also present in the extracted link farm, suggesting a coordinated effort to redirect users to potentially malicious content. No scripts were extracted from this sample.

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://iavnt.com/uploads/1/3/0/5/130590059/130590059.html#luxury+travel+guide+tokyo
    • http://octisorganics.com/uploads/1/3/1/6/131606241/9826624.pdf
    • http://jonathanglassart.com/uploads/1/3/0/6/130620494/5509223.pdf
    • http://jeannesternerphotography.com/uploads/1/3/0/8/130874150/tuberuwumezagaxo.pdf
    • http://caitlinarntz.com/uploads/1/3/0/5/130541208/zudavomubokisuvom.pdf
    • http://sarniantiling.com/uploads/1/3/0/4/130477085/jegifowagelo-ranapetewe-xagazererufili-pifup.pdf
    • http://mygirlfriendshouse.net/uploads/1/3/0/5/130588500/funajiloba.pdf
    • http://thefurnacefox.net/uploads/1/3/0/8/130813030/gulutonez.pdf
    • http://afrikproject.org/uploads/1/3/1/8/131871477/8b157cf.pdf
    • http://justice-trends.com/uploads/1/3/0/3/130323216/zumovo.pdf
    • http://emilydurrett.com/uploads/1/3/1/3/131383727/9436326.pdf
    • http://investingmakemesick.net/uploads/1/3/1/3/131398545/2490340.pdf
    • http://snowshovelmt.com/uploads/1/3/0/5/130550993/potupobok_sevemurag_mubotajez.pdf
    • http://getmarried-mexico.com/uploads/1/3/0/5/130542909/xafedosajevafo_mepovugomo.pdf
    • http://acesdeadmanshand.com/uploads/1/3/0/6/130604808/213b5d15f926796.pdf
    • http://thetouchupdj.com/uploads/1/3/0/7/130739000/6830251.pdf
    • http://true2yourselffitness.com/uploads/1/3/1/4/131409128/sexebonewadul.pdf
    • http://researchstrategymatters.com/uploads/1/3/0/2/130287991/47d3b94f8670.pdf
    • http://neena.ca/uploads/1/3/0/7/130738667/lasozifixedokivolema.pdf
    • http://barrons-independent.com/uploads/1/3/0/6/130603958/kedajedoxuvez_guredofokadef.pdf
    • http://constructionblogging.com/uploads/1/3/0/6/130604391/tuferufijefuxo.pdf
    • http://lifewithoxygen.com/uploads/1/3/1/6/131606208/81037.pdf
    • http://americascostcrisis.com/uploads/1/3/1/4/131437216/b9e20.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_off00006d33.bin
6193363bf6049974571d3ef4b59bd8ebc58f022945e1fe83a7001498e34be102		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D33 10864 bytes

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