Malicious PDF — malware analysis report

Static analysis result for SHA-256 fbb0464e4f1e86c7…

MALICIOUS

PDF

35.0 KB Authoring application: OpenOffice Draw
MD5: eefe4f4f466d7920b9f45994a26b7fe0 SHA-1: fc4b99ce48be145111b0ad22ecf98a5ab665f977 SHA-256: fbb0464e4f1e86c78baa0cbc5b01c550f20b3c6573d5c1159eb4646bc2d8b7fb
150 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, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a link farm or redirection mechanism. ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a phishing or malicious traffic generation intent. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://xamanismo.info/uploads/1/3/0/5/130543995/c8a498c388ebf63.pdf
    • http://redthreadtraveler.com/uploads/1/3/0/6/130639157/soxuboxetuduzuw-webarusevabolu-logizuxebale.pdf
    • http://uceme.com/uploads/1/3/0/5/130590203/gojabav_tabetaneb.pdf
    • http://npnewbies.com/uploads/1/3/0/4/130476075/zixajekive.pdf
    • http://hongliguojixianjinbaijiale.br3h.com/uploads/1/3/0/5/130550948/2c078a3f48e99ed.pdf
    • http://septicsystemcost.net/uploads/1/3/0/8/130874669/fusolorigekiduv.pdf
    • http://www.ooshguy.com/uploads/1/3/0/3/130379291/7c50b07ed88.pdf
    • http://tudientot.com/uploads/1/3/0/3/130312983/4411368.pdf
    • http://nutritionalbiochemistryresearchgroup.org/uploads/1/3/0/3/130323390/8bdedbcb67ae052.pdf
    • http://alliesapples.com/uploads/1/3/0/6/130620337/9cae1.pdf
    • http://curatedchoice.co/uploads/1/3/0/8/130813652/5136100.pdf
    • http://valleyofhemp.com/uploads/1/3/0/5/130589322/doruluzov.pdf
    • http://www.rabbitlabelhouse.com/uploads/1/3/0/3/130379803/vumigitavumubi.pdf
    • http://ularooms.com/uploads/1/3/0/4/130479472/2138841.pdf
    • http://homefirst.co.nz/uploads/1/3/0/9/130969085/popij.pdf
    • http://www.install8.co.uk/uploads/1/3/0/9/130969329/deduwiwawikiz.pdf
    • http://negativetopositivefilms.com/uploads/1/3/0/6/130604728/vodaw.pdf
    • http://www.m-ferguson.com/uploads/1/3/0/6/130621382/pitab.pdf
    • http://www.review-get.com/uploads/1/3/0/9/130969097/6583.pdf
    • http://redribbonstaging.com/uploads/1/3/0/7/130775606/9164263.pdf
    • http://travisnietert.com/uploads/1/3/0/8/130874495/420513.pdf
    • http://californiamobilenotaryriverside.com/uploads/1/3/0/4/130488544/xikupawopinomow.pdf
    • http://m11rro.com/uploads/1/3/0/2/130289385/b3c6aa938da5f22.pdf
    • http://yinghuangguojiyulecheng.br3h.com/uploads/1/3/0/8/130814601/130814601.html#grammar+one+oxford+university+press+pdf
    • http://www.install8.co.uk/uploads/1/3/0/9/13

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000024ce.bin
de203e595631001aa35ea049832f31d691a5985dd306f952c19d89b024ea40e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24CE 9140 bytes

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