Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c86c5e86ec74fcc…

MALICIOUS

PDF

39.9 KB Created: 2020-06-05 17:53:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b5ac8c31599a84b4c5319dec65eda7e6 SHA-1: a4165e159b7a438424c18f34b1339d4944bf572c SHA-256: 9c86c5e86ec74fcc25f151652bf81504b168fa6b2eb8d1cf02d71bae0fc06649
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 to various domains, a technique often used for SEO poisoning or to redirect users to malicious content. The ML classifier strongly indicated maliciousness, and the PDF_SEO_LINK_FARM heuristic confirms the presence of a link farm. The document body, though partially corrupted, contains a URL that aligns with the observed link farm behavior.

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://reconmetals.ca/uploads/1/3/1/0/131070376/131070376.html#memes+to+send+to+your+crush
    • http://badluckclubofficial.com/uploads/1/3/0/8/130874156/2223773.pdf
    • http://autodiscover.goldrushdispensary.com/uploads/1/3/0/6/130604201/e9f778e1348cd37.pdf
    • http://alzheimerswarrior.org/uploads/1/3/0/6/130603769/a68941733f669.pdf
    • http://urcasusdetot.com/uploads/1/3/0/2/130272591/563915.pdf
    • http://secondnatureleadership.com/uploads/1/3/1/8/131856771/wedoz.pdf
    • http://fourperception.com/uploads/1/3/1/4/131437770/zapanurunekowiz.pdf
    • http://dakotacamille.com/uploads/1/3/0/6/130620439/d5b56c83903da5f.pdf
    • http://makingcollegemorecommon.com/uploads/1/3/1/1/131163752/zedijepedudu.pdf
    • http://ntlaviationservices.com/uploads/1/3/0/3/130379379/rusawogosefit.pdf
    • http://cyanea.co.uk/uploads/1/3/1/3/131398278/wuvun.pdf
    • http://taylorsmithvideography.com/uploads/1/3/1/8/131871517/juzamubuxono.pdf
    • http://laughingbuckfarmfoundation.org/uploads/1/3/0/6/130639675/zudepajewifeboz_tikuvuvakimuk_neluwumulomales_duwegobufenofun.pdf
    • http://ghostfoxaudio.com/uploads/1/3/0/5/130551749/newisaripuraxo-wubipepololek-votatolotukib-rigajakuv.pdf
    • http://asistersings.com/uploads/1/3/0/7/130740618/155ad1a3ca74444.pdf
    • http://reconmetals.ca/uploads/1/3/1/0/131070376/terms.html
    • http://reconmetals.ca/uploads/1/3/1/0/131070376/dmca.html
    • http://reconmetals.ca/uploads/1/3/1/0/131070376/policy.html
    • https://lexepupufuke.files.wordpress.com/2020/06/kazeri.pdf
    • https://derafomiwu.files.wordpress.com/2020/06/35944974806.pdf
    • https://rajibaw.files.wordpress.com/2020/06/tisazubinutoluxunesoga.pdf
    • https://begopimaxija.files.wordpress.com/2020/06/rezewad.pdf
    • https://jagepoxuro.files.wordpress.com/2020/06/lupiruvuwusozafe.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_off00006fa7.bin
c59545e03cbe3f42eea304fb4a0bf39cc7ecb926f4a45f4ab80655c96220394b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FA7 10428 bytes

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