Malicious PDF — malware analysis report

Static analysis result for SHA-256 7744ff1bacba5b2a…

MALICIOUS

PDF

45.4 KB Authoring application: LibreOffice
MD5: 414070f3338c9bd065df126eaf62aaf1 SHA-1: 868e72b44215acc7287f97768d5c9e8d3c36c9cd SHA-256: 7744ff1bacba5b2adaeb90cd5af6ecb6082aaee53d5238ac4b6ae48242104dda
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Phishing: Spearphishing Attachment T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file contains a large number of embedded URLs pointing to external PDF documents, a technique often used for SEO spam or to distribute malicious payloads. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection intent. No scripts were extracted from this sample, limiting the ability to determine specific execution chains.

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://spanishintoenglish.co.uk/uploads/1/3/0/8/130815093/rabibe_nezuzejiramaj_divud.pdf
    • http://soulcraftmans.com/uploads/1/3/0/2/130288455/37a94b.pdf
    • http://shrugrepublic.com/uploads/1/3/0/7/130738537/tatokesiwo_temigoniwopu.pdf
    • http://realitynetwork.co/uploads/1/3/0/8/130814293/1955564.pdf
    • http://acousticat.com/uploads/1/3/0/6/130604735/lubifowe.pdf
    • http://mytexaschamber.com/uploads/1/3/0/6/130620354/zamuzileratip_retenifumad_duzefib_zolerizakeletap.pdf
    • http://www.trulyyoursphotography.co.uk/uploads/1/3/0/5/130590689/wamexededegoradejul.pdf
    • http://thetricitiestreedoctor.com/uploads/1/3/0/4/130494172/3d2a93245a99dc1.pdf
    • http://rayhonrestaurant.com/uploads/1/3/0/5/130539002/74abc65a8af.pdf
    • http://ssteeleenterprises.com/uploads/1/3/0/5/130543537/jixutibekuzufo.pdf
    • http://brownwoodhealthdepartment.com/uploads/1/3/0/6/130621100/divuzixawilikomovuzo.pdf
    • http://x0075085xstreamtravel.xsideas.com/uploads/1/3/0/4/130488940/130488940.html#kiran+prakashan+reasoning+book+solution+in+hindi+medium+download+pdf
    • http://soulcraftmans.com/uploads/1/3/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005a03.bin
ef3a286aec72107d35f808c38f1e84a480172c85f402120406917ef0e7f822c1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A03 8280 bytes

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