Malicious PDF — malware analysis report

Static analysis result for SHA-256 794cfd5c4e6947ee…

MALICIOUS

PDF

31.2 KB Authoring application: QPDF
MD5: 874a2d5e2138ddca0278e278b7691862 SHA-1: 1e8938fdb55c5257ba15125627029c5353163ecf SHA-256: 794cfd5c4e6947ee60bba1464ff845e6b70d8f72b7f5f019685759a514db6515
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF file contains a large number of embedded URLs pointing to other PDF files. This technique, identified by the PDF_SEO_LINK_FARM heuristic, is commonly used to distribute phishing content or redirect users to malicious sites. The ClamAV detection further supports its malicious nature. The embedded URLs are the primary indicators of compromise.

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://royalsingalongparties.com/uploads/1/3/0/5/130546497/9318821.pdf
    • http://carolinapumpworks.com/uploads/1/3/0/4/130493143/6607334.pdf
    • http://theego.org/uploads/1/3/0/4/130483114/jalaleme.pdf
    • http://myeasystudy.com/uploads/1/3/0/2/130272280/8042534.pdf
    • http://uniquetouchofsparkle.com/uploads/1/3/0/5/130539315/gusufesosiji-bezikuza-vifizuvudixezu.pdf
    • http://rhinobullybook.com/uploads/1/3/0/2/130274258/b65b3eeb21e6571.pdf
    • http://marytherapeuticmassage.com/uploads/1/3/0/2/130289748/gikob-fuxixolozuxal-morugi-rubaxiti.pdf
    • http://paintingwithfriendsbw.com/uploads/1/3/0/5/130552017/goseziledimuzux.pdf
    • http://ubaentertainment.com/uploads/1/3/0/4/130483086/4824631.pdf
    • http://cookingclassatthotupolaresidence.com/uploads/1/3/0/6/130639180/sisikewapew.pdf
    • http://mimariposadesigns.com/uploads/1/3/0/5/130590716/jowazedezuwo.pdf
    • http://noyzguru.com/uploads/1/3/0/5/130546118/3997641.pdf
    • http://adoptme.info/uploads/1/3/0/4/130483498/130483498.html#acrobat+professional+10

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001458.bin
87f20c42553e4b69599061ffeb060e16969eb7fe92cce0ade801767d0597df14		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1458 7640 bytes

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