Malicious PDF — malware analysis report

Static analysis result for SHA-256 916ede4f49612fdc…

MALICIOUS

PDF

36.7 KB Authoring application: Serif PagePlus
MD5: 6bf3ad2db8473a5b11762617e0a455bd SHA-1: 862a423d87f714fde1b07ee0a761ce39508dd700 SHA-256: 916ede4f49612fdc70bdd21a1247e2e71aef96dc28b773d4a56f3750b039aaa4
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a link farm pointing to numerous other PDF files hosted on various domains, a common technique for distributing malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports its malicious nature. The document body, though heavily obfuscated, contains references to Excel macros and analysis, likely a lure to engage the user. The primary attack pattern involves redirecting users through a series of links to ultimately download or view malicious content.

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://lakeportunifiedschooldistrict.com/uploads/1/3/0/6/130604046/foxagir.pdf
    • http://artesaniasmexicanasalicia.com/uploads/1/3/0/5/130546486/5729700.pdf
    • http://andrearachelquiroz.com/uploads/1/3/0/6/130639407/2398344.pdf
    • http://op1620.com/uploads/1/3/0/2/130270982/lakabukep-niner-jelusekirapik.pdf
    • http://www.badgercreekbookkeeping.com/uploads/1/3/0/4/130488410/7320649.pdf
    • http://mybaby3d.com.au/uploads/1/3/0/4/130483087/dc6aac308ba05.pdf
    • http://planetswim-asia.com/uploads/1/3/0/4/130489527/vojixebu.pdf
    • http://www.gormansgraphics.com/uploads/1/3/0/6/130603889/8782794.pdf
    • http://mobile-tech24.com/uploads/1/3/0/6/130604902/mimimeloguw.pdf
    • http://www.tokyocounselingandwellness.com/uploads/1/3/0/4/130476272/nupipuvosemewo.pdf
    • http://mta-sts.mx.texasbluequailhunting.com/uploads/1/3/0/7/130776063/130776063.html#insert+text+in+excel+macro
    • http://artesaniasmexicanasalicia.com/u

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000038e0.bin
4da5f5f7850a3c31f122f00b3020f6b3371c0443e14be6adc0a429ac51bd81ed
pdf-font-stream PDF embedded font (sfnt) at offset 0x38E0 8184 bytes