Malicious PDF — malware analysis report

Static analysis result for SHA-256 123340ee24d91dac…

MALICIOUS

PDF

37.8 KB Authoring application: Pdftk
MD5: af82c4afdeb1d09b67e87f1a91e2b940 SHA-1: 7faada7adea7beb92f35d4273b802bd27ea85b50 SHA-256: 123340ee24d91dac5c1d30137084f63e84ead20298b1abe91fcd01974121e7d0
192 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains a large number of external links, many of which point to other PDF files hosted on various domains. The document body mentions 'Sql server 2008 dba tutorial pdf free download' and includes a link to a PDF, suggesting a lure to download malicious content. The ClamAV detection and ML classifier further indicate malicious intent, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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://robinadairlifecoaching.com/uploads/1/3/0/7/130738676/fogasiseri_ruvafezemirip_bizadefejepu.pdf
    • http://yourpackaging.design/uploads/1/3/0/7/130775150/tufadivunidesedazuvo.pdf
    • http://mta-sts.mx.tiedyeharvest.com/uploads/1/3/0/8/130814687/wezujeluziwakagenugo.pdf
    • http://plantandsoiltreatment.com/uploads/1/3/0/3/130323207/fidigego-povezadirifawig-worinobi.pdf
    • http://djharperoldschool.com/uploads/1/3/0/4/130489898/7748825.pdf
    • http://9n1ff.dtmgt.com/uploads/1/3/0/2/130271096/gasez.pdf
    • http://fivewaysengineeringhealthsafetyenvironment.com/uploads/1/3/0/8/130813144/f14674e614539b.pdf
    • http://moldeminas.com/uploads/1/3/0/4/130436202/2e0c61a1.pdf
    • http://www.mrmacbiblebook4.com/uploads/1/3/0/7/130739143/vukasoxeluz.pdf
    • http://mindfulcollegeadmissions.com/uploads/1/3/0/6/130604536/zotamotu.pdf
    • http://charlescc.com/uploads/1/3/0/8/130874539/2a43eac80.pdf
    • http://empowerrealtyaz.com/uploads/1/3/0/4/130435569/3da4335c.pdf
    • http://ysfw.com/uploads/1/3/0/6/130639764/2796675.pdf
    • http://m.geoffgoodsonhorsemanship.com/uploads/1/3/0/6/130639177/walezexefovibu-supiparasunim-rinadefulutaza.pdf
    • http://upclear.org/uploads/1/3/0/6/130621812/4622964.pdf
    • http://sprivot.com/uploads/1/3/0/7/130776476/1368210.pdf
    • http://countylinelogisticscenter.com/uploads/1/3/0/4/130492771/zokutifofolugoz.pdf
    • http://jackrthompson.net/uploads/1/3/0/5/130589174/6065431.pdf
    • http://myheritagefence.com/uploads/1/3/0/6/130604693/rezenadomedavot-ranupoto.pdf
    • http://dhshighschool.com/uploads/1/3/0/2/130274301/3359e4f4caf3.pdf
    • http://host14.carmichaelnl.com/uploads/1/3/0/6/130639669/130639669.html#sql+server+2008+dba+tutorial+pdf+free+download

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000033a7.bin
4702800b589ea7a6dd3ab7908aad7237f8a985996de5a223eda03ac1c3619766		 pdf-font-stream PDF embedded font (sfnt) at offset 0x33A7 7940 bytes

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