Malicious PDF — malware analysis report

Static analysis result for SHA-256 d98df0886e95062c…

MALICIOUS

PDF

45.2 KB Authoring application: Mobipocket Creator First seen: 2020-09-24
MD5: 569c70930efa053457b3cbe44546b183 SHA-1: 20e9e4e42cc55a3c29cb51830c9fcf074973005a SHA-256: d98df0886e95062cc2d65364e656c65413d5192b7d3e7e6824891dbec0a9499c
152 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to other PDF files hosted on various domains. This behavior is indicative of a link farm or SEO poisoning attack, designed to drive traffic to malicious content. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall' further supports this assessment. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://ameliaquilts.com/uploads/1/3/0/6/130620946/jowezaberusado.pdf In PDF document text
    • http://s-w-p.org/uploads/1/3/0/6/130639760/gapilewerufal.pdfIn PDF document text
    • http://downundermigration.com/uploads/1/3/0/5/130539131/lanisewamiwet_wozide_zedalixoji.pdfIn PDF document text
    • http://snirts.xyz/uploads/1/3/0/5/130550967/supulimesoro.pdfIn PDF document text
    • http://northpointebaptistministries.com/uploads/1/3/0/6/130621315/5627045.pdfIn PDF document text
    • http://mixaforiz.printtex.biz/uploads/2020/01/28/405588.pdfIn PDF document text
    • http://hydrominer.net/uploads/1/3/0/7/130738631/293545.pdfIn PDF document text
    • http://perthcards.com/uploads/1/3/0/5/130588559/6561299.pdfIn PDF document text
    • http://squaretaper.info/uploads/1/3/0/6/130604456/f7e1828f3.pdfIn PDF document text
    • http://mymissblue.com/uploads/1/3/0/5/130588596/130588596.html#a+discovery+of+witches+season+1+episode+1+reviewIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001250.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1250 8724 bytes
SHA-256: a67e545fcbdf2213a55576d93954e352e37b8afb066828bf12ee1aaa4c353878
font_01_sfnt_off0000760a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x760A 2616 bytes
SHA-256: d907c570f1f8f2d62f38d7529dbf77de46ca3a1917ec53aca7a78bae59874b04

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