Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc976f7542211c41…

MALICIOUS

PDF

43.1 KB Authoring application: Poppler-utils
MD5: fe08c1c04a8a334e50fd93737775d72d SHA-1: 189fea7d02d1818820f83d0a89d522b385a90c0c SHA-256: dc976f7542211c41a00adc95469904f4ed0c494781694267b3f24793b5adba50
120 Risk Score

Malware Insights

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

The PDF file was flagged by ClamAV as Pdf.Phishing.TtraffRobotInstall-7605656-0. Static analysis revealed a large number of embedded external links, indicating a link farm designed to redirect users to potentially malicious content. The document body contains garbled text, suggesting it is not intended for human readability but rather as a container for these links.

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://cpanel.cbddepotshop.com/uploads/1/3/0/8/130814457/9367648ac27d4.pdf
    • http://www.spokaneboudoirphotography.com/uploads/1/3/0/4/130483550/tutefapixogi.pdf
    • http://loseweightwithsurgery.com/uploads/1/3/0/4/130476687/5664767.pdf
    • http://repairplumberfortworth.net/uploads/1/3/0/8/130813077/9749508.pdf
    • http://hostmaster.thebathbombshop.co.uk/uploads/1/3/0/9/130969176/6a65ff.pdf
    • http://mh-aero.de/uploads/1/3/0/5/130543092/237609.pdf
    • http://salproduction.com/uploads/1/3/0/8/130813851/kawuzaze.pdf
    • http://naturestrace.com/uploads/1/3/0/5/130588151/2084685.pdf
    • http://iwonderwouldi.com/uploads/1/3/0/5/130588943/ziwexot.pdf
    • http://nhabatdongsan.com/uploads/1/3/0/7/130739533/nisofa.pdf
    • http://beatdiabetesnow.org/uploads/1/3/0/6/130621228/vabasimegujega.pdf
    • http://www.jbheslip.com/uploads/1/3/0/6/130639877/c544e2416ae.pdf
    • http://pingreehillprovisions.com/uploads/1/3/0/4/130489025/kolavigarok.pdf
    • http://doranyprzyloz.pl/uploads/1/3/0/4/130483117/8c2de465b0904.pdf
    • http://webmail.digcitinstitute.com/uploads/1/3/0/8/130873986/130873986.html#degree+of+comparison+irregular+adjectives

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ebe.bin
40a403f8312ff9c93041e514e965a4d57d797ba541f1da729710ef172887bfc2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2EBE 16060 bytes
font_01_sfnt_off00004300.bin
e2f1373bf3d70a40ff4276a486f0a1d2d32154e4f45ad1243a44c3d3b7d91cea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4300 2652 bytes
font_02_sfnt_off00004eb9.bin
0d1f2b839fa5a7fffa5f74365e8635fc9bcfa2a0e23173510471ad7eabdbea95		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4EB9 7748 bytes

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