Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ff8138ed945b3c0…

MALICIOUS

PDF

69.7 KB Authoring application: Mobipocket Creator
MD5: 8d033966f044d8fe14bc0cdcd4cbd1c5 SHA-1: 085292847348df69dcee8375dd0ee30e69a6e962 SHA-256: 4ff8138ed945b3c01923d5d5f47b4516908d08a8968387535bf5a96322029d96
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic. These URLs likely lead to phishing sites or further malware downloads. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a phishing or traffic redirection intent. No scripts were extracted, limiting the analysis of direct execution capabilities.

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://ajvincentproductions.com/uploads/1/3/0/4/130477805/bobukusetik-datejulopuzalu-kexetezibafelu.pdf
    • http://nanaglensolarfarm.com.au/uploads/1/3/0/5/130551615/nilijopar.pdf
    • https://tuguguxujo.weebly.com/uploads/1/3/0/2/130289585/5279854.pdf
    • http://burround.ru/uploads/2020/01/28/xebujupitufurusizi.pdf
    • http://mermaidfitnessbump.com/uploads/1/3/0/6/130620365/4400799.pdf
    • http://onlinehomemyaccsupport706.com/uploads/1/3/0/2/130289417/e182006.pdf
    • http://needacable.com/uploads/1/3/0/6/130621765/1600651.pdf
    • http://wez.filmsoundpractice.com/uploads/2020/01/28/lasanuneni.pdf
    • http://jatovulu.sultantec.com/uploads/2020/01/29/c59bb05.pdf
    • http://mindfulnessforteensaustin.com/uploads/1/3/0/3/130379174/7650294.pdf
    • http://midwestmusclebullyclub.com/uploads/1/3/0/5/130551210/pimotofur_xizane.pdf
    • http://cornerstonepagans.org/uploads/1/3/0/3/130379299/e017839.pdf
    • http://stokesed508webpage.com/uploads/1/3/0/4/130492315/130492315.html#broadsheet+tabloid+comparison

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001691.bin
0523d8ea937702645f06e0ab9eb5a5e22cdb9280ff08fd3034a46c5aebd5c409		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1691 10808 bytes
font_01_sfnt_off00009aa1.bin
125adecb7ba02f07507acf47b532ebb4def464200fd66e283cb9c4fecca0740f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9AA1 10468 bytes
font_02_sfnt_off0000b161.bin
91860436afd3b1ce6edd98a3c1a5428711934eef9759de81535df9dd5a5ed09d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB161 8240 bytes
font_03_sfnt_off0000cafb.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCAFB 16036 bytes

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