Malicious PDF — malware analysis report

Static analysis result for SHA-256 e99889a144709d72…

MALICIOUS

PDF

58.5 KB Authoring application: Adobe PDF Library 9.0 First seen: 2020-09-24
MD5: 3c315fbc727e76f343b073560a2b08fa SHA-1: 1f2dc919d68e289c1cc38f9acbf00497357ab973 SHA-256: e99889a144709d724ca261e1082825c00c86c00ce3b63377fb5654e4810fcb4c
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 URLs pointing to external PDF documents. This behavior is indicative of a link farm designed for SEO manipulation or to distribute malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a malicious intent, likely related to phishing or traffic redirection.

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://tupi.clickstore.xyz/uploads/2020/01/29/natizajato.pdf In PDF document text
    • http://noralpha.com/uploads/1/3/0/2/130271171/d5ea35611.pdfIn PDF document text
    • http://myonepynt.com/uploads/1/3/0/6/130620290/5139983.pdfIn PDF document text
    • http://ntellectlaw.com/uploads/1/3/0/5/130550826/bb8044f651ce5fd.pdfIn PDF document text
    • http://royaloakbrewerschampionship.com/uploads/1/3/0/5/130539922/c287bf50fc9a4.pdfIn PDF document text
    • http://mairu-tabi-bonbigirl.com/uploads/1/3/0/3/130323506/2497084.pdfIn PDF document text
    • http://myukpensiontransfer.com.au/uploads/1/3/0/5/130589409/fosorofuzal_surirar.pdfIn PDF document text
    • http://jesscofield.com/uploads/1/3/0/5/130539797/xedegegemixugax_buxon_niviruzexid.pdfIn PDF document text
    • https://gowenejenupo.weebly.com/uploads/1/3/0/5/130588272/76f4dc85301.pdfIn PDF document text
    • http://calhouncountywaspsandflies.org/uploads/1/3/0/6/130620150/gaforozalutopem.pdfIn PDF document text
    • http://nuvueindustrialsolutions.com/uploads/1/3/0/4/130477135/tebubel-lofeninolamam.pdfIn PDF document text
    • http://revelsites.com/uploads/1/3/0/5/130588251/nemos_renakape_paxupepag_sezuzobulovabi.pdfIn PDF document text
    • http://djsacademy.com/uploads/1/3/0/6/130640072/130640072.html#pediatric+gastroenteritis+treatment+guidelinesIn PDF document text

Related samples 1

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

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000014b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14B8 8832 bytes
SHA-256: 8cc7593dd1ccc38ed83054e1150f2d2159b2de0b19b7d42c242f4ef4be0fd89c

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