Malicious PDF — malware analysis report

Static analysis result for SHA-256 165d68182af7071e…

MALICIOUS

PDF

40.5 KB Authoring application: ImageMagick
MD5: aac8483fce8d388e3b7042786d3c5c49 SHA-1: cf350d3de72ebc57239a85225e611b5ff6c0fc63 SHA-256: 165d68182af7071edd3767cf9b7cf2133a206f3c85bd95777bdbefe82d11493b
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO poisoning or to redirect users to malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution. No scripts were extracted, but the embedded URLs are the primary indicators of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://spatialperspectives.org/uploads/1/3/0/2/130289296/relorasedumal_metamamoxete_kemaxibarijil_dojufujapevorin.pdf
    • http://willsmovingtest.club/uploads/1/3/0/6/130603850/zubakusike_wumumibof_dozomak.pdf
    • http://alhorsehotel.com/uploads/1/3/0/5/130539518/632cd63b668815.pdf
    • http://saccma.org/uploads/1/3/0/6/130605002/kivagirofetim.pdf
    • http://dippedarmor.com/uploads/1/3/0/6/130622104/7a40c3d54bfb9.pdf
    • http://dbeuropeepackage.com/uploads/1/3/0/8/130873826/zuzurejenag.pdf
    • http://primarynursing.net/uploads/1/3/0/6/130604227/a3463.pdf
    • http://lawrencemillerebooks.com/uploads/1/3/0/8/130874388/8500930.pdf
    • http://planetmoba.com/uploads/1/3/0/6/130621367/7327061.pdf
    • http://spoletogreenfun.org/uploads/1/3/0/4/130494172/9850860.pdf
    • http://ourladywillowbrook.com/uploads/1/3/0/4/130488286/df0d90789.pdf
    • http://sta-66-99-58-193.ladse.org/uploads/1/3/0/6/130621031/130621031.html#manual+de+usuario+mini+me+dolce+gusto
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f69.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2F69 16036 bytes
font_01_sfnt_off00004662.bin
d4b109acd8d287e78392c4342af86eeb3d417a82d661630139302f375ca1ffdd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4662 8824 bytes

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