Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e1dbd4224aa95be…

MALICIOUS

PDF

34.1 KB Authoring application: pstoedit
MD5: 8a22292a32bbc3fbae105e6eb64b3e5b SHA-1: f642e45e85a83b95e607812e7896c050812ac0f5 SHA-256: 7e1dbd4224aa95be8cc50aa50d1e59a8d62a7fa2b9dfeb0a236740d2c476608d
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 links to external PDF documents hosted on various domains. This technique is commonly used for SEO poisoning or to redirect users to malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic-driving intent. 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://kevinaverycomedy.com/uploads/1/3/0/5/130542909/4500179.pdf
    • http://ikj-online-demo.com/uploads/1/3/0/5/130550817/0c18c1234.pdf
    • http://votepolzin.com/uploads/1/3/0/4/130479389/mekufuban.pdf
    • http://nrsrecruitment.co.uk/uploads/1/3/0/2/130271028/jusunag_gupuvi_depijuxek.pdf
    • http://www.piute-high-school.com/uploads/1/3/0/5/130589198/351112.pdf
    • http://www.rieleerey.com/uploads/1/3/0/4/130483219/15bf42.pdf
    • http://ballantynesaferide.com/uploads/1/3/0/8/130813769/fubebumaw-lapukew-dufivovuxisek-dosokurus.pdf
    • http://jhonblack.info/uploads/1/3/0/6/130640235/nisefedo-sawajapodom-sufabik.pdf
    • http://hostmaster.craftpixie.co.uk/uploads/1/3/0/5/130590305/f8ad2b09453.pdf
    • http://abcdts.store/uploads/1/3/0/7/130776002/xoxolorepafe-logevow-vuvezaxu.pdf
    • http://santafedatahub.com/uploads/1/3/0/3/130312920/vadiduxerenap.pdf
    • http://zi3r6.slpny.com/uploads/1/3/0/6/130639224/130639224.html#weekly+staff+meeting+agenda+sample

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ea1.bin
ea5fa16c5f10d8d3e1ece38964fec7c9c214c6af5a96a25b7d2bd4673fe4d911		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2EA1 7652 bytes

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