Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef9e71fb3825f050…

MALICIOUS

PDF

24.4 KB Created: 2020-03-20 08:45:59 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 1417252920d40f7c4b434448cd27adef SHA-1: b01f6a167773ca377c31800c2d0020d20d03847b SHA-256: ef9e71fb3825f050dd62d3e77f8ca489dc364d0df3115dc65963f00c481341d3
112 Risk Score

Malware Insights

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

The PDF is identified as an image-only document with an action trigger, typical of a phishing lure. It contains numerous external links, suggesting a link farm designed to redirect users to malicious sites. The primary URL http://harlesz.com/uploads/1/3/0/6/130604162/130604162.html#ciclo+de+brayton+com+regenera%C3%A7%C3%A3o is likely the initial landing page for the attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 4

  • 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.
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 24 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://harlesz.com/uploads/1/3/0/6/130604162/130604162.html#ciclo+de+brayton+com+regenera%C3%A7%C3%A3o
    • http://nnvmayorscup.com/uploads/1/3/0/2/130272080/tenepowaledug_nisubuxowinir_mikalazog_watisorelafu.pdf
    • http://www.yeaperks.com/uploads/1/3/0/5/130588987/082607.pdf
    • http://babyladymn.com/uploads/1/3/0/9/130969910/zajutokuwapimofofuso.pdf
    • http://waibiz.nz/uploads/1/3/0/5/130589219/8681585.pdf
    • http://circumsolarmp.co.uk/uploads/1/3/0/6/130620598/keguluzawav-jupukepesuvab.pdf
    • http://dinner-ateight.com/uploads/1/3/0/4/130483638/7386195.pdf
    • http://therapyhavenaz.com/uploads/1/3/0/5/130588653/0f1b10d1.pdf
    • http://acp-ce.net/uploads/1/3/0/8/130874610/bemofu.pdf
    • http://simpletomatoes.com/uploads/1/3/0/5/130550949/mimavala-bomitekibosifov.pdf
    • http://richmondandflood.com/uploads/1/3/0/8/130814902/gixuxomikedevunabefu.pdf
    • http://applyfordisabilitynow.us/uploads/1/3/0/7/130775554/4548822.pdf
    • http://www.dociamyer.com/uploads/1/3/0/4/130475979/6350274.pdf
    • http://art-by-age.com/uploads/1/3/0/2/130287314/roremulez.pdf
    • http://seaisfun.com/uploads/1/3/0/2/130288563/fa62a48a371e.pdf
    • http://metrowestgirlssoftball.org/uploads/1/3/0/6/130605387/fosokuze.pdf
    • http://wilcoxlighting.com/uploads/1/3/0/5/130550915/1aaca3.pdf
    • http://scentaliciouscandles.com/uploads/1/3/0/9/130969262/8e7b0c37f13.pdf
    • http://www.kddoula.com/uploads/1/3/0/2/130289502/kavukuril.pdf
    • http://thebonetique.ca/uploads/1/3/0/9/130969445/364469.pdf
    • http://mobile.tampalandscapedesign.com/uploads/1/3/0/8/130874384/e35be66.pdf

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