Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d5e691ecf822f06…

MALICIOUS

PDF

38.6 KB Authoring application: Smallpdf Desktop
MD5: 7e63252293db1dc05581f86d794d4938 SHA-1: f40afd4918037c54fca339094d6bcca88c00d399 SHA-256: 8d5e691ecf822f06fae27f4ef2c5f10e476e6899dd1b008a331494bd967968a2
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links to external PDF files hosted on various domains. This is indicative of a link farm or a distribution mechanism for malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic-driving intent. No scripts were extracted from this sample.

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://suomalaisiaverkkokauppoja.fi/uploads/1/3/0/2/130291635/pumekanalo-gulivizuxa.pdf
    • http://shopp-italia.fun/uploads/1/3/0/7/130775280/1b27457bdc1ef.pdf
    • http://www.my-twisted-arrow-photo.com/uploads/1/3/0/4/130476575/c1a47c2.pdf
    • http://hostmaster.melodymaduorie-jonesmusic.co.uk/uploads/1/3/0/6/130604050/foxurukis.pdf
    • http://noukstyle.nl/uploads/1/3/0/8/130814921/0237df039d1a.pdf
    • http://soonernutrition.com/uploads/1/3/0/4/130483479/kisurovinarawab_rerusuz.pdf
    • http://masteringmagic.net/uploads/1/3/0/6/130639052/fb676765bbf9d6.pdf
    • http://amodernplace.com/uploads/1/3/0/4/130436141/cbac65e5f9.pdf
    • http://mid-atlanticmountainworks.com/uploads/1/3/0/8/130813991/gufaxejovoxowin-lamosidasexi-xezanegipuxoma.pdf
    • http://sondikakoaukera.com/uploads/1/3/0/6/130604382/7420488.pdf
    • http://homebrewbeerguide.com/uploads/1/3/0/7/130740432/buwejep_pilojavirifi.pdf
    • http://fullonink.shop/uploads/1/3/0/6/130640191/5691413.pdf
    • http://35andunder.com/uploads/1/3/0/5/130543996/vebiduwuganuki_bivuz.pdf
    • http://bethinkcreate.com/uploads/1/3/0/7/130775935/wobux.pdf
    • http://12utct.com/uploads/1/3/0/6/130620957/b3aff92ead5.pdf
    • http://m.cmsa-westmi.com/uploads/1/3/0/6/130639768/selak-fixaberadogamo.pdf
    • http://beardedbowls.com/uploads/1/3/0/5/130551543/maxarojuba-berelon-baperekijupan-xewozuden.pdf
    • http://claudiasclassroom.com/uploads/1/3/0/3/130313149/venegofekitutex-varemixuvovuxo-nirifarag.pdf
    • http://thaitogether.org/uploads/1/3/0/6/130620750/7051689.pdf
    • http://boudoirsbysarah.com/uploads/1/3/0/3/130313790/wokonufilar.pdf
    • http://3ljmr.bpmtc.com/uploads/1/3/0/5/130590310/130590310.html#combine+pdf+files+to+one+file+free
    • http://masteringmagic.net/uploads/1/3/0/6/13

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000035f4.bin
8f334bfead3f9738a73484f3faff8d7df436e834cfa7f1868d7e2fe55d1b1fa1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x35F4 8232 bytes

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