Malicious PDF — malware analysis report

Static analysis result for SHA-256 14599df0b81489c8…

MALICIOUS

PDF

43.0 KB Authoring application: LibreOffice Draw
MD5: 148639fcdbed82e66c73ce5d946bfe0d SHA-1: f9a89b276c4b343466f1024bc4ed985fcd34a706 SHA-256: 14599df0b81489c837ff49e1e6d1f460b38e286a538b23ad6d9cdfd018bf1a80
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of embedded URLs pointing to other PDF files, detected as a link farm. This technique is often used for SEO manipulation or to distribute malicious content. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier strongly indicate malicious intent. The document body, though partially corrupted, also contains several of these URLs, reinforcing the link farm attack pattern.

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.
  • 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://minnesotanoncompetes.com/uploads/1/3/0/5/130543575/junovuwonivisova.pdf
    • http://fenurega.kangaroo-shop.ru/uploads/2020/01/28/7442583.pdf
    • http://poste-tunisienne.com/uploads/2020/01/27/wavuxiduxupaj.pdf
    • http://mindful-empowerment.ca/uploads/1/3/0/6/130603776/8bf1b.pdf
    • http://jug.provape.ru/uploads/2020/01/29/tosogaxu.pdf
    • http://buretolem.best-prices.icu/uploads/2020/01/28/jifusesapa-ratikerexomaj.pdf
    • https://dufonibofewatux.weebly.com/uploads/1/3/0/4/130436367/junew_lamumakulugux.pdf
    • http://mrsmauck.com/uploads/1/3/0/6/130621439/dikilitamugemiwi.pdf
    • http://realmotivated.com/uploads/1/3/0/6/130621294/9140607.pdf
    • http://sophievmakeupartiste.com/uploads/1/3/0/6/130621140/zebimadipade_widoketofipusi.pdf
    • http://jesedafud.ib-airbank.mobi/uploads/2020/01/28/de59275d24d2.pdf
    • http://moneymogul.net/uploads/1/3/0/5/130551434/4397811.pdf
    • http://reviteskincare.com/uploads/1/3/0/5/130590508/gajakedija-lurevel-ribajesez-noferemilave.pdf
    • http://pidira.vpalatke.pro/uploads/2020/01/28/3abac9f7f65.pdf
    • http://nutritioncapecod.com/uploads/1/3/0/4/130436224/lijoweliv-bewexinuvubipaz.pdf
    • http://nunavikyouthhouseassociation.com/uploads/1/3/0/6/130604401/febunifewobav.pdf
    • http://waylessepoxyflooring.com/uploads/1/3/0/6/130620745/jarimazokasex.pdf
    • http://petervuphotography.com/uploads/1/3/0/5/130540453/bixajas.pdf
    • http://movethemortgage.com/uploads/1/3/0/4/130489020/fagowasatidimesajigo.pdf
    • http://bucketofsuds.us/uploads/1/3/0/5/130551898/ab35bd25e6b5e.pdf
    • http://lightsoutlet.net/uploads/1/3/0/2/130289746/marunaru.pdf
    • http://synchrocentral.com/uploads/1/3/0/6/130621944/guvilipemidese.pdf
    • http://rrgdigitalmarketing.com/uploads/1/3/0/6/130639782/1751ee2d0.pdf
    • http://sidimulot.0vk.info/uploads/2020/01/27/mupiza.pdf
    • http://roguemp.com/uploads/1/3/0/4/130488698/6aacd235.pdf
    • http://misfotografie.de/uploads/1/3/0/3/130323493/130323493.html#como+hacer+un+circulo+de+lectura

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000181b.bin
f3d52d3ce57afb77e7fd14af2a35613fcf7d2645fa1c3ac68ebdd02e011dbb3b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x181B 9104 bytes

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