Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca5a2e8dee2cfd65…

MALICIOUS

PDF

51.5 KB Authoring application: Solid Converter PDF First seen: 2020-09-24
MD5: 49b468da0ecea94daa01aa9508a947a7 SHA-1: 603dce7798f553aee1eb41956579cfd51e3a47d5 SHA-256: ca5a2e8dee2cfd655a2ce477774a82e4a459a2d7118ed844999d072e1ce10721
152 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, embedding a large number of external URLs. The heuristic 'PDF_SEO_LINK_FARM' specifically identifies this behavior, suggesting the document's primary purpose is to redirect users to potentially malicious content hosted on various domains. The ClamAV detection further supports its malicious nature, classifying it as 'Pdf.Phishing.TtraffRobotInstall'. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • 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.
  • 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://okiegear.net/uploads/1/3/0/3/130323818/tewevusujaro.pdf In PDF document text
    • http://broadsoftdirect.com/uploads/1/3/0/7/130739289/tufoworizikolom.pdfIn PDF document text
    • http://discgolflittleleague.com/uploads/1/3/0/5/130542758/f92716764.pdfIn PDF document text
    • http://polarlondon.com/uploads/1/3/0/6/130621603/dd0d4eaec91.pdfIn PDF document text
    • http://bradwarnermedia.com/uploads/1/3/0/3/130379561/mutusazo-banujelufebu-zufidipikek-kobepovebokuti.pdfIn PDF document text
    • http://southerncrossland.com/uploads/1/3/0/7/130738722/fatosoje-papabuw-jijolid.pdfIn PDF document text
    • http://markanthony.us/uploads/1/3/0/6/130620763/1605808.pdfIn PDF document text
    • http://northernnerd.com/uploads/1/3/0/4/130488812/zepuzopisexelopi.pdfIn PDF document text
    • http://serra2sea.com/uploads/1/3/0/3/130312961/figirinam.pdfIn PDF document text
    • http://lockton.services/uploads/1/3/0/3/130323506/fukof_mixezifofazipu_lurok.pdfIn PDF document text
    • http://bikesforall.ca/uploads/1/3/0/6/130620996/ef976e6.pdfIn PDF document text
    • http://thestickermill.com/uploads/1/3/0/8/130813120/lepejex.pdfIn PDF document text
    • http://maltafolkmusicfestival.org/uploads/1/3/0/5/130589385/8363262.pdfIn PDF document text
    • http://a1412531xstreamtravel.xsideas.com/uploads/1/3/0/5/130588419/7408289.pdfIn PDF document text
    • http://balancehealthandwellness.net/uploads/1/3/0/6/130604531/3af856abe706c.pdfIn PDF document text
    • http://firstollie.net/uploads/1/3/0/6/130604292/dewaro.pdfIn PDF document text
    • http://tintanegrahtx.com/uploads/1/3/0/7/130738504/47652aac75.pdfIn PDF document text
    • http://elevitae.com/uploads/1/3/0/7/130775245/zurupunedig.pdfIn PDF document text
    • http://txpublicschoolproud.com/uploads/1/3/0/6/130640091/dapagokenum.pdfIn PDF document text
    • http://thetowerdistrict.com/uploads/1/3/0/4/130488619/9724104.pdfIn PDF document text
    • http://arkiv.rokus.no/uploads/1/3/0/7/130776249/1449936.pdfIn PDF document text
    • http://nicklibonati.com/uploads/1/3/0/7/130776502/d36691e8bc6abd5.pdfIn PDF document text
    • http://explorepickens.com/uploads/1/3/0/8/130874309/boruzopexemesagep.pdfIn PDF document text
    • http://xintaiyangchengshoucunyouhui.br3h.com/uploads/1/3/0/6/130604859/130604859.html#the+legend+of+zelda+ocarina+of+time+skulltulas+d%27orIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001489.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1489 7484 bytes
SHA-256: 6ab2f2c2599bce3eaf720b0816b8e1c5f1a01b82feafb81bcb937f46f458ee3a