Malicious PDF — malware analysis report

Static analysis result for SHA-256 f593ba949741b5b2…

MALICIOUS

PDF

37.6 KB Authoring application: Solid Converter PDF
MD5: d7726a3967c6e3375ce74070e5a20a57 SHA-1: d2fa62fb35ae0a8bc50047697c28b32a8872a875 SHA-256: f593ba949741b5b20986b686c0dd53e95d9ae3f5918c4fb0f88213655b5533c3
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent. The heuristic 'PDF_SEO_LINK_FARM' specifically identifies the mass linking behavior, with the dominant host being lilyfairjewellry.com.

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://lilyfairjewellry.com/uploads/1/3/0/6/130620755/wepiga-zowola-patenerilon.pdf
    • http://r2rconstructive.com/uploads/1/3/0/4/130489696/7349890.pdf
    • http://studentsandcollege.com/uploads/1/3/0/7/130739373/6579807.pdf
    • http://www.canaveses.org/uploads/1/3/0/2/130272979/4524715.pdf
    • http://lucernemobilehomepark.com/uploads/1/3/0/7/130738553/tiwagil.pdf
    • http://plussizeweddingdressma.com/uploads/1/3/0/8/130814584/5469526.pdf
    • http://sassyarabia.com/uploads/1/3/0/5/130543168/2f1b0364a1feec5.pdf
    • http://prospectplumbingandgas.com/uploads/1/3/0/8/130874153/lajifojetotofagekiwa.pdf
    • http://mx.poweropsairsoft.com/uploads/1/3/0/7/130738748/vubotopalega_vuminojotipibe_zusawuwene_kitufunajijez.pdf
    • http://www.livelovelotus.com/uploads/1/3/0/5/130588267/govunaweveno.pdf
    • http://www.sandytalarmo.com/uploads/1/3/0/7/130775249/diloge.pdf
    • http://www.sunnyjunkremoval.com/uploads/1/3/0/5/130551859/9447992.pdf
    • http://masturblog.com/uploads/1/3/0/8/130814193/zujak.pdf
    • http://www.powerlaunching.com/uploads/1/3/0/5/130588269/2c64ac2c7a3.pdf
    • http://www.preciousorphanage.com/uploads/1/3/0/6/130639315/zifubigafoxopez.pdf
    • http://phx81supplies.com/uploads/1/3/0/6/130604636/kisodadonagixe.pdf
    • http://casparmckeever.com/uploads/1/3/0/3/130313038/af2dc96eb.pdf
    • http://keithwardfiction.com/uploads/1/3/0/5/130539838/8202028.pdf
    • http://www.fascistlinkedin.com/uploads/1/3/0/3/130313249/5980509.pdf
    • http://5enses.ca/uploads/1/3/0/3/130313525/gegarerema.pdf
    • http://soyseal.com/uploads/1/3/0/5/130544086/filagem.pdf
    • http://www.allseasonsgardencare.com/uploads/1/3/0/6/130620669/danago_mivujavuwamu.pdf
    • http://mta-sts.mail.poloprague.com/uploads/1/3/0/7/130738706/4779310.pdf
    • http://ugjw.brdge.org/uploads/1/3/0/6/130639114/130639114.html#how+to+politely+decline+a+job+offer+because+of+salary

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003291.bin
e721785135d38b1b3d5a3e711e8d8c47b2052278825f0e85bd3a12d533e783df		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3291 7168 bytes

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