Malicious PDF — malware analysis report

Static analysis result for SHA-256 42717a9880a8a05b…

MALICIOUS

PDF

40.9 KB Authoring application: Pdftk
MD5: 32c83a0770e8adb4fdfe29d61fe5a513 SHA-1: a5d08108f2f21cb8466a59120e07d04ce5301242 SHA-256: 42717a9880a8a05bddb204ca6b05ed83c2ed7212448060086d60722e12705b8b
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded external links, as detected by the PDF_SEO_LINK_FARM heuristic. The ML classifier and ClamAV also flagged this file as malicious, with ClamAV identifying it as Pdf.Phishing.TtraffRobotInstall. The document body, though truncated, contains numerous URLs pointing to PDF files on various domains, suggesting a link farm or redirection scheme. The primary intent appears to be directing users to external malicious content.

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://tagawin.bigdigitag.com/uploads/2020/01/27/marevudexazim.pdf
    • http://wilizen.tamadanataly.ru/uploads/2020/01/27/dodibivuxinezex-dadalinipaf.pdf
    • http://tapa.severnypark.ru/uploads/2020/01/27/f254e5.pdf
    • http://meduzamedia.com/uploads/2020/01/28/0edcaa.pdf
    • http://porscheaphotography.com/uploads/1/3/0/6/130604630/gilupuvodepideliwup.pdf
    • http://tidojigaro.vet77.ru/uploads/2020/01/28/5473730.pdf
    • https://sonuvawi.weebly.com/uploads/1/3/0/2/130271095/59b75e1.pdf
    • http://ukm-hq.com/uploads/1/3/0/6/130604742/f95832bd.pdf
    • http://lucaszoo.com/uploads/1/3/0/4/130436165/putinajafomoro.pdf
    • http://kuri.ecoopower.com/uploads/2020/01/27/vonafaxirekebek-gigetema-nafewidane.pdf
    • http://ashestoashesband.com/uploads/1/3/0/4/130476091/bedipekoxa-notodix-tazalomor-suxijejoja.pdf
    • http://smolizol.ru/uploads/2020/01/27/lufasojuwevuk.pdf
    • https://wuzapojik.weebly.com/uploads/1/3/0/2/130272102/jigewasawezagu.pdf
    • http://gameday.info/uploads/1/3/0/5/130539990/5237088.pdf
    • http://ranunuvod.militariorgucoz.ru/uploads/2020/01/28/5bd223.pdf
    • http://gutefit.tapuzik.com/uploads/2020/01/27/6849312.pdf
    • http://kcouture365.com/uploads/1/3/0/4/130488085/322c8731a07f7a8.pdf
    • http://bornadventuregear.com/uploads/1/3/0/6/130620490/9637276.pdf
    • http://overlookatlindberghfinancing.com/uploads/1/3/0/6/130620857/19aa6.pdf
    • http://wilmagoodyear.com/uploads/1/3/0/5/130550832/3892653.pdf
    • http://livecamaccess.com/uploads/1/3/0/6/130620970/bapizuku-pozozejadokisim.pdf
    • http://annotalegal.com/uploads/1/3/0/4/130435743/130435743.html#spreadsheet+amortization+schedule

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000177e.bin
f5ba0f7d434ea670ca7cd4b8a14e2cbcf4a3dd84b88c9e02c422b138c32f1276		 pdf-font-stream PDF embedded font (sfnt) at offset 0x177E 11936 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.