Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd3544104715a37d…

MALICIOUS

PDF

40.2 KB Authoring application: PDF Studio
MD5: 6719fd846ada5db5eb67fa54ef5d30b3 SHA-1: 6ab077a94f503e256a375419a109dc6e7bb858aa SHA-256: dd3544104715a37dbad29c261c2b9912641aab760b015f53f9a3a2d83c903c2f
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to external PDF documents. This behavior is indicative of a link farm designed to distribute malicious content or conduct phishing attacks. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection intent.

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://nortearquitectos.com/uploads/1/3/0/5/130547771/0eb90c42.pdf
    • http://bikevaultsystem.com/uploads/1/3/0/6/130620877/judaju.pdf
    • http://trade-city-award.org/uploads/1/3/0/6/130605156/xepum.pdf
    • http://vineyardsfarmexclusive.com/uploads/1/3/0/5/130551090/fovebowopumikeruk.pdf
    • http://mourntolight.com/uploads/1/3/0/5/130588921/nizoko-valagudur-girexaxekozabi-zamogusoriso.pdf
    • http://jamesorourkelaw.com/uploads/1/3/0/7/130738527/pijexogopanew.pdf
    • http://royalflorals.com/uploads/1/3/0/2/130292089/rarijuwetepa.pdf
    • http://nakedroots1.com/uploads/1/3/0/7/130776246/2038228.pdf
    • http://mamajamas.com/uploads/1/3/0/5/130551338/4920348.pdf
    • http://legacyandalchemy.net/uploads/1/3/0/5/130550698/parapar-nixujonob-lujuxebus.pdf
    • http://bejustalittlebetter.com/uploads/1/3/0/6/130604772/130604772.html#bridge+rectifier+over+full+wave+rectifier

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001238.bin
2f1de1a4d0a04f49a4989227c9255924e6048ff827964eb3b02c455c6902d495		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1238 7380 bytes
font_01_sfnt_off000061bd.bin
1110447959503c75238c0f1bcdf9de7fad567fc767730a4530dcb0d3a64541bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61BD 2696 bytes

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