Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e620c66e6b01faf…

MALICIOUS

PDF

31.3 KB Authoring application: Mobipocket Creator
MD5: e75b128cfa78195aec3d4a1e8d125029 SHA-1: 859a360b9c384359df8fb30b3121a1188b501bce SHA-256: 3e620c66e6b01fafdb1f4801e86f3c6de7fde947f3014a81e89ecb23edba7353
162 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains a large number of embedded URLs, forming a link farm, and includes a social engineering lure prompting the user to install a browser extension or update. This is a common tactic for phishing or malware distribution. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports this assessment. No scripts were extracted from this sample.

Heuristics 4

  • 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
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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://mightyscripture.net/uploads/1/3/0/3/130324418/5219492.pdf
    • http://lapbandlosangeles.net/uploads/1/3/0/4/130476605/1440174.pdf
    • http://bread.healmarketplace.com/uploads/1/3/0/6/130639605/sowatewo.pdf
    • http://mvmaxclinicadeginastica.com/uploads/1/3/0/6/130604950/bepuzuv_ditelurosarajok.pdf
    • http://pathblazer.org/uploads/1/3/0/6/130639664/c4e9557f953.pdf
    • http://cre8.work/uploads/1/3/0/3/130323219/9201744.pdf
    • http://myschoolchoicestory.org/uploads/1/3/0/4/130483741/6181248.pdf
    • http://xenuwep.service-ptauthentication.com/uploads/2020/01/28/82b470f7cad5.pdf
    • http://micahmakespots.com/uploads/1/3/0/4/130435711/mejasol.pdf
    • http://mattycake.com/uploads/1/3/0/6/130639511/16d9de1a96.pdf
    • http://defenceprocurementnews.com/uploads/1/3/0/5/130588613/rizivosasidifogadi.pdf
    • http://brownmediadesigns.com/uploads/1/3/0/2/130271019/6ff3ad1eaa13e4a.pdf
    • http://royal34.net/uploads/1/3/0/5/130590058/130590058.html#before+we+go+subtitles+english

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001332.bin
25f3d80d16515ae26e8649641b2b58f031b0d318b4fcd15c6771401dfa406a45		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1332 8140 bytes

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