Malicious PDF — malware analysis report

Static analysis result for SHA-256 66a160a9b7f532d5…

MALICIOUS

PDF

39.2 KB Authoring application: Serif PagePlus
MD5: 0602fcb76c7f8cd937617690005caa19 SHA-1: ebd78cdede15f42ce5888ec3d0ef8b2351fdffb5 SHA-256: 66a160a9b7f532d5833354ffdf5a2d5d2f9941a30d010ee82a67dd5dbf6c4410
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to other PDF files, a technique often used for SEO manipulation or to distribute 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 1.0000

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://irishbeerandwhiskeyfestival.com/uploads/1/3/0/5/130550903/39d562b0.pdf
    • http://marshalinehan-dbt.org/uploads/1/3/0/6/130604226/xifopoki_zuxibo.pdf
    • http://comedyzoneproject.com/uploads/1/3/0/6/130639239/kanidusix.pdf
    • http://tmracingsales.com/uploads/1/3/0/4/130490875/deder.pdf
    • http://bcadancecompany.com/uploads/1/3/0/2/130289524/kogikej.pdf
    • http://jmaisd.net/uploads/1/3/0/8/130814329/4149976.pdf
    • http://conmakdesign.com/uploads/1/3/0/8/130813504/4788939.pdf
    • http://ponyenzo.com/uploads/1/3/0/6/130604151/9dba5e7222788.pdf
    • http://strengthsgrid.com/uploads/1/3/0/6/130620798/f1970178b8e2e.pdf
    • http://propowerwashingllc.com/uploads/1/3/0/6/130639147/vijidoduwep-botezenuzuzi-sapara-jodavetuzabix.pdf
    • http://ambercove27waterfalls.com/uploads/1/3/0/6/130621645/papedib-vawodazed-nerujapulugonef.pdf
    • http://albireovineyards.com/uploads/1/3/0/6/130603861/4960654.pdf
    • http://shopsixtyone.com/uploads/1/3/0/7/130776101/3971957.pdf
    • http://chicagostpatricksdayparade.com/uploads/1/3/0/7/130775475/2849099.pdf
    • http://reahomesllc.net/uploads/1/3/0/6/130621666/jebemusokobub-nepavilire-wirava-mivote.pdf
    • http://74-123-79-11.mgwnet.com/uploads/1/3/0/2/130288430/130288430.html#sample+cover+letter+for+assistant+professor

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003cf6.bin
a969f076461865561249bd646d48a1290712e98626c321d73dd0d28f422ee7da		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3CF6 8472 bytes

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