Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c9ca2e77617bb09…

MALICIOUS

PDF

37.2 KB Authoring application: LibreOffice Draw First seen: 2020-09-24
MD5: 74033157aade0084dd6e858fb96df5f7 SHA-1: 24c15c8c48af4a10cba681b8863d5d5e00e77f72 SHA-256: 9c9ca2e77617bb0968884d2f18a6fea6e62164bafc860f103443819517221177
192 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 likely serve as a link farm to redirect users to malicious websites, consistent with phishing or malware distribution campaigns. The ClamAV detection further supports its malicious nature. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • 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://www.tellhershecan.org/uploads/1/3/0/5/130543538/4615766.pdf In PDF document text
    • http://newproductinstitute.info/uploads/1/3/0/6/130621000/jikawuketizuv.pdfIn PDF document text
    • http://rxtraining.ca/uploads/1/3/0/5/130543280/6112190.pdfIn PDF document text
    • http://www.rogercraigdesign.com/uploads/1/3/0/2/130288361/6985949.pdfIn PDF document text
    • http://danhixsonphotography.com/uploads/1/3/0/8/130814681/semuzemerarufaj_kojepozob.pdfIn PDF document text
    • http://2019.rocktherun4mda.org/uploads/1/3/0/6/130604185/nepuliwaxakemuk.pdfIn PDF document text
    • http://pitchedinbflat.com/uploads/1/3/0/6/130639051/2211250.pdfIn PDF document text
    • http://www.wowimagesproduction.com/uploads/1/3/0/6/130639054/zegiduwixi.pdfIn PDF document text
    • http://tiwizi-usa.com/uploads/1/3/0/2/130272548/5846236.pdfIn PDF document text
    • http://yourridehomeohio.com/uploads/1/3/0/5/130588708/c86248.pdfIn PDF document text
    • http://1650lakecook.com/uploads/1/3/0/7/130738975/9400356.pdfIn PDF document text
    • http://lagosjobsite.com/uploads/1/3/0/3/130313224/miduredapivek.pdfIn PDF document text
    • http://www.handewisoegihartotiwa.com/uploads/1/3/0/6/130621032/lasono.pdfIn PDF document text
    • http://dentsplyimplantsusonlinepayment.com/uploads/1/3/0/8/130813143/degebenurubajam_pewisovax_defiwubexilot_zanijukol.pdfIn PDF document text
    • http://shelleycorr.com/uploads/1/3/0/6/130639091/5712668.pdfIn PDF document text
    • http://nannymoscow.com/uploads/1/3/0/5/130545327/165806.pdfIn PDF document text
    • http://bendetl.fr/uploads/1/3/0/7/130776158/ead2fb7.pdfIn PDF document text
    • http://year1.gilesbrook.co.uk/uploads/1/3/0/3/130379457/sigeto.pdfIn PDF document text
    • http://www.sophietang.com/uploads/1/3/0/5/130543945/wavidorenevoguzolu.pdfIn PDF document text
    • http://braizbistro.com/uploads/1/3/0/7/130776714/weberudijajavov-tikisozebi-bupelugot-vofugujekaw.pdfIn PDF document text
    • http://vogelindustries.com/uploads/1/3/0/4/130435820/1532445.pdfIn PDF document text
    • http://wcd-lzubvsmk.mgh-r.ch/uploads/1/3/0/4/130483539/130483539.html#seattle+children%27s+hospital+asthma+action+planIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31BA 7572 bytes
SHA-256: f8c87d0c93d8c5a00c49a52a827d35bb8058fa7691bbf221f024dded0c6b625e