Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa507f8b613f96cb…

MALICIOUS

PDF

33.2 KB Authoring application: Mobipocket Creator
MD5: 871fbee25fed1a09a29246b0061e85a0 SHA-1: 84e219cd7c36cb64d9095df6122a1fbe5af2d4eb SHA-256: fa507f8b613f96cbc9220b48e2dc188b4463567697f15d1e283ce5211de78c90
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, a technique commonly used for phishing or distributing further malware. The heuristic 'PDF_SEO_LINK_FARM' specifically identifies this behavior, pointing to numerous PDF files hosted on external domains. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious redirection 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://lafresquera.org/uploads/1/3/0/7/130775939/1154471.pdf
    • http://hostmaster.naumann-seevetal.com/uploads/1/3/0/9/130969634/jabexut_kewafokup_bariwopixezebum_lekoperizobebok.pdf
    • http://www.spectraforms.com/uploads/1/3/0/8/130873893/526f1cef0089.pdf
    • http://datumimpact.com/uploads/1/3/0/5/130588839/f72aec04.pdf
    • http://phx81supplies.com/uploads/1/3/0/5/130589268/makemedadarisaw.pdf
    • http://joinsymposia.com/uploads/1/3/0/6/130640049/9561668.pdf
    • http://synergisticpreservations.com/uploads/1/3/0/7/130776253/lebazowepu_rimevaxolixade_wulomib_jexinam.pdf
    • http://www.annebonds.net/uploads/1/3/0/5/130540540/lusape.pdf
    • http://twynetrip.com/uploads/1/3/0/8/130813738/gejusofe.pdf
    • http://paperboyproductions.net/uploads/1/3/0/7/130739088/wuwazu-nuvara-gofatem-nuzavegebane.pdf
    • http://www.nestnourish.com/uploads/1/3/0/6/130604689/3035603.pdf
    • http://yourcruisetoremember.com/uploads/1/3/0/2/130273571/510a2516c71f.pdf
    • http://katherinemunster.com/uploads/1/3/0/4/130488445/dalar.pdf
    • http://www.iowajuniorcamp.com/uploads/1/3/0/6/130621844/jatebififasaxipug.pdf
    • http://kraztoons.com/uploads/1/3/0/2/130288639/dofete.pdf
    • http://www.aureliakbrown.com/uploads/1/3/0/5/130551491/werimezegujuxob.pdf
    • http://dirkgentlydetectiveagency.com/uploads/1/3/0/2/130287521/2258986.pdf
    • http://wcd-cqu57gr7.mgh-r.ch/uploads/1/3/0/6/130605084/130605084.html#o+level+african+history+pdf+download

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000252f.bin
554070b22f2d6af1d69005f2ee8dd22b6932daec1ce9606e0c43ca86b9bb82c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x252F 7756 bytes

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