Malicious PDF — malware analysis report

Static analysis result for SHA-256 e54c9b51e07f7f63…

MALICIOUS

PDF

30.9 KB Created: 2020-03-22 13:50:36 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 8a6025acda003b53abc8aca297c2983a SHA-1: f5d74ccfee2fddf277490a2be046acfb1775fb0f SHA-256: e54c9b51e07f7f6323789375f9098c1dc0db4bd251c7e6e06c973c218bb054e7
62 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, many of which point to similarly structured URLs on different domains. This pattern is indicative of a link farm designed to distribute malicious content or redirect users to phishing sites. The document body, while containing what appears to be educational text, is likely a lure to encourage clicks on these malicious links.

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://cctiedye.com/uploads/1/3/0/7/130775169/130775169.html#determina+los+ocho+n%C3%BAmeros+naturales+que+son+divisores+de+30
    • http://east-sales.com/uploads/1/3/0/6/130604758/338af67.pdf
    • http://eca-math.com/uploads/1/3/0/8/130874539/lofufelip-movuxuroxupuwu-lonirot.pdf
    • http://amphibian79.goteamonline.com/uploads/1/3/0/2/130272328/f4e521.pdf
    • http://doroeng.com/uploads/1/3/0/7/130776824/64d5729fa1f6.pdf
    • http://parasympathetic.net/uploads/1/3/0/4/130476410/dawularum_romomot_xatis_gonurorebinuxor.pdf
    • http://aleonor1to1.com/uploads/1/3/0/6/130620934/kipafovoduj.pdf
    • http://castillocoin.com/uploads/1/3/0/2/130291358/fizunik-dinatofor.pdf
    • http://fouremusic.com/uploads/1/3/0/7/130775320/vorejapasujim-vetutotarifiju-bisiwebezebo-negojurilutege.pdf
    • http://www.adniam.com/uploads/1/3/0/2/130270745/4099506.pdf
    • http://wondersinportugal.com/uploads/1/3/0/6/130639493/faf621954634.pdf

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