Malicious PDF — malware analysis report

Static analysis result for SHA-256 8bb5cd7a5a486733…

MALICIOUS

PDF

34.5 KB Authoring application: QPDF
MD5: 625dc888ebab50b695f4b2f92e1273dc SHA-1: fcc3999a3714bc963fa4157a94fe8cae17b42c42 SHA-256: 8bb5cd7a5a486733bfbcaafa66cbcb2cff3df1789035f61fb154ca417f74b4fe
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1566.002 Spearphishing Link

The PDF file exhibits a critical heuristic firing for a link farm, containing numerous external URLs. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' strongly suggests a phishing or traffic redirection intent. The embedded URLs are likely used to direct users to malicious content or further phishing pages.

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://keepyourappointment.com/uploads/1/3/0/6/130604289/kikapubol-womak-diwuzewavod-fiwolereruz.pdf
    • http://transformationoftheheartministries.com/uploads/1/3/0/4/130483561/dotig.pdf
    • http://nicolasandysmillinery.com/uploads/1/3/0/4/130489706/81bf4.pdf
    • http://beezneezsausages.com/uploads/1/3/0/3/130313370/6271161.pdf
    • http://breastgroup.com/uploads/1/3/0/6/130621053/nimid.pdf
    • http://objectrelationsrecords.com/uploads/1/3/0/5/130590400/vuzuwemogu.pdf
    • http://navigator-znaniy.ru/uploads/2020/01/29/popijuzunusuta.pdf
    • http://nedcosummerblitz.com/uploads/1/3/0/3/130313500/d4446b581.pdf
    • http://bartbenson.com/uploads/1/3/0/5/130588501/bufuronazavogu.pdf
    • https://kunanuwemopo.weebly.com/uploads/1/3/0/4/130483725/durixumukuliwu.pdf
    • http://newkindlife.com/uploads/1/3/0/5/130539035/5904843.pdf
    • http://elitehockeyleagues.com/uploads/1/3/0/4/130483626/nesoj_funuk_xakoxawi_bufes.pdf
    • http://mychinesewatch.com/uploads/1/3/0/5/130539202/130539202.html#coordinate+plane+worksheets+for+thanksgiving

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000130c.bin
d35d2fca6b64e1f8d19c27ac2ce0c959d0901b1a672c500a11864eaad2903d59		 pdf-font-stream PDF embedded font (sfnt) at offset 0x130C 7824 bytes

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