Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa342e9ca7636abe…

MALICIOUS

PDF

40.8 KB Authoring application: Pdftk
MD5: ccc8a106160554ab03efa6faa7a5ab2a SHA-1: 877c452e7277bef04e968e856dd6ba9eb2d73858 SHA-256: aa342e9ca7636abe9a1ecba2a27761118750fd7997255d90aa8be65e88a3d4b3
150 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains a large number of embedded links to external PDF files hosted on various domains. This behavior is indicative of a link farm, often used for SEO manipulation or to distribute malicious payloads. The ClamAV detection and ML classifier strongly suggest malicious intent. No scripts were extracted from this sample, limiting the ability to determine specific payload delivery mechanisms.

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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://www.cheapinclusivevacations.com/uploads/1/3/0/4/130476456/fukirega.pdf
    • http://dream-different.com/uploads/1/3/0/5/130551517/bozabukisevaju.pdf
    • http://pocusworld.com/uploads/1/3/0/7/130740112/ribon-mojowi-wewolulorudu-sajexefipoxare.pdf
    • http://mylifeisamesspodcast.com/uploads/1/3/0/2/130274343/wugajelupogopumoxaj.pdf
    • http://jonesinmybones.shop/uploads/1/3/0/5/130539046/9ed76a772.pdf
    • http://pocketle.net/uploads/1/3/0/6/130620233/sidegaviferulurela.pdf
    • http://sanjuanstorage.net/uploads/1/3/0/4/130483863/migiwifemewef-vatomerumuxa.pdf
    • http://mmjplantation.org/uploads/1/3/0/7/130776023/pelawenusikawomokek.pdf
    • http://anandassi.com/uploads/1/3/0/5/130539642/67127c39f1d6c0f.pdf
    • http://www.sandstonecycles.com/uploads/1/3/0/2/130287278/2b7ee7bf8e05.pdf
    • http://www.fleurissant.com/uploads/1/3/0/5/130546385/36b113.pdf
    • http://rxalens.net/uploads/1/3/0/5/130588477/nokagosini.pdf
    • http://webdisk.kolts.co.uk/uploads/1/3/0/5/130588363/mezisoti.pdf
    • http://munciearts.net/uploads/1/3/0/2/130288729/vokax_dofemolag.pdf
    • http://mail.lastwindup.com/uploads/1/3/0/7/130775053/bc7d9c2fab.pdf
    • http://lilyarndesignco.com/uploads/1/3/0/4/130483903/9828759.pdf
    • http://madpita.com/uploads/1/3/0/7/130776250/namebetovapin.pdf
    • http://jollyollykids.com/uploads/1/3/0/5/130551491/7908307.pdf
    • http://beingmebooks.com/uploads/1/3/0/5/130588584/vowibujufeforar_sorew_gepexukajub.pdf
    • http://111-pod.site/uploads/1/3/0/6/130604879/toxuxaw.pdf
    • http://businessplans-usa.com/uploads/1/3/0/6/130639603/86a118dfbd6d1e.pdf
    • http://triumphbikerentals.com/uploads/1/3/0/6/130639914/6191400.pdf
    • http://heartberrymedical.com/uploads/1/3/0/3/130313188/wabovagozunoje_lixanopimen_sevegikukur_josixagojuwo.pdf
    • http://magic-almere.nl/uploads/1/3/0/8/130813975/piluberulema.pdf
    • http://durabuilt.org/uploads/1/3/0/5/130538986/3234ce.pdf
    • http://ftx7t.slpny.com/uploads/1/3/0/6/130620965/130620965.html#how+to+read+pdf+file+in+kindle+paperwhite

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003aba.bin
b475acbcf937d471273d00ccdffabb7a58d79b920a27a6521b229526e8426aa9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3ABA 8100 bytes

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