Malicious PDF — malware analysis report

Static analysis result for SHA-256 a401934e5e0363c4…

MALICIOUS

PDF

54.4 KB Authoring application: LibreOffice Draw
MD5: 456ace19555afca74b9c4f2bf89cb940 SHA-1: 1dd167350526882f035df58459d35e7e4834ddb4 SHA-256: a401934e5e0363c4c6b9755fb8baa3642dcc814e21fafaaa34130f36d9a7656b
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 external links, as indicated by the PDF_SEO_LINK_FARM heuristic. These links likely lead to phishing pages or malware downloads. The ClamAV detection of 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the malicious nature of this document. No scripts were extracted from this sample.

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://everysinglequestion.com/uploads/1/3/0/5/130588625/rodufekuberuweted.pdf
    • http://unstatusquo.com/uploads/1/3/0/6/130639379/2663099.pdf
    • http://leadreads.com/uploads/1/3/0/7/130775729/ferumebaxosuk-nusawu-bukorirodiwopup-laxafuf.pdf
    • http://liberty-rc.com/uploads/1/3/0/2/130289756/7734839.pdf
    • http://juderus.com/uploads/1/3/0/6/130620972/2126946.pdf
    • http://crystaldictionary.online/uploads/1/3/0/7/130739916/gulonusig.pdf
    • http://solizagency.com/uploads/1/3/0/7/130739596/9869824.pdf
    • http://dimension4d.com/uploads/1/3/0/5/130550890/duremipaxo.pdf
    • http://soakupthesolstice.com/uploads/1/3/0/2/130291033/lolote_lozezalenijinat_lanofaxedo_genaxo.pdf
    • http://mejones.info/uploads/1/3/0/7/130739369/9101732.pdf
    • http://host13.pleasingfood.com/uploads/1/3/0/6/130620946/130620946.html#abrasive+water+jet+machining+line+diagram

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000110d.bin
99d8c13897453036850bc10a2a991e8bf276601f75e03f6d0d854c0216ee833f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x110D 8528 bytes
font_01_sfnt_off000092a6.bin
d907c570f1f8f2d62f38d7529dbf77de46ca3a1917ec53aca7a78bae59874b04		 pdf-font-stream PDF embedded font (sfnt) at offset 0x92A6 2616 bytes

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