Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5860222a88b9579…

MALICIOUS

PDF

41.4 KB Authoring application: Nitro PDF
MD5: fe6fa334bf1a8a9e6747ff1053126672 SHA-1: ac7ed16c76eebe62b425076a06c49b1feca06d90 SHA-256: e5860222a88b9579284f2c82a1bca3f11b005d5f41cb5b955552d41dbb4bbb2f
120 Risk Score

Malware Insights

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

The PDF contains a link farm pointing to multiple external PDF files, a common tactic for SEO poisoning and phishing. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing intent. The embedded URLs are the primary indicators of compromise, directing users to potentially malicious content.

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://pchelpformom.net/uploads/1/3/0/5/130539366/3646212.pdf
    • http://balmonline.com/uploads/1/3/0/6/130604295/gudijutaworix-jerovujepidoru-gedixas.pdf
    • http://decojewelry.net/uploads/1/3/0/5/130551589/5660182.pdf
    • http://crispcleaningservice.com/uploads/1/3/0/5/130588913/rosepurojakamasuji.pdf
    • http://akakeb.com/uploads/1/3/0/5/130588282/kedemoxetubed.pdf
    • http://miami.momotombochocolatefactory.com/uploads/1/3/0/6/130604218/130604218.html#ballerina+2016+movie

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000010d2.bin
1dab17de36d420ec728bc1b73e768c830115390e1df4b0faed9faee765cfc993		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10D2 9276 bytes
font_01_sfnt_off00004f8f.bin
2cb9119ae7e21e2188c0d2167647f0fc9caf1ffd3b8f4adea90f7b8ca0687f39		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4F8F 16772 bytes
font_02_sfnt_off00006667.bin
8e46485b65c4c251fc8d217c8c5f722985f354f06824988eb18930027017e028		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6667 2732 bytes

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