Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a1337b403970678…

MALICIOUS

PDF

31.5 KB Authoring application: pdf-parser First seen: 2020-09-24
MD5: 81a9472cf9e34f34f76417918f15d6fa SHA-1: d8eb220397271ae9fb1d6c32f6934a0b0113d865 SHA-256: 9a1337b403970678d61ff79fbf6beb55785cf8bbe73afae43706bdf8904150b3
152 Risk Score

Malware Insights

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

The PDF contains a large number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection also points to phishing activity. The embedded URLs are likely used to redirect users to malicious websites or to manipulate search engine rankings. 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://delarosacreations.net/uploads/1/3/0/6/130604549/3747702.pdf In PDF document text
    • http://doctorberrycounseling.com/uploads/1/3/0/7/130739773/d92dd1ca90.pdfIn PDF document text
    • http://amksecurities.com/uploads/1/3/0/5/130546803/0abe7dc6b7e429.pdfIn PDF document text
    • http://globalproportions.com/uploads/1/3/0/2/130289158/a0be7ac6.pdfIn PDF document text
    • http://aim-mississauga.org/uploads/1/3/0/4/130435682/nedulus.pdfIn PDF document text
    • http://mynehab.org/uploads/1/3/0/4/130436154/zovit.pdfIn PDF document text
    • http://edgelandscapeandmaintenance.com/uploads/1/3/0/5/130548152/130548152.html#bhagavad+gita+english+pdf+archiveIn 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_off000010f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F8 9216 bytes
SHA-256: 2391015db29bd88edec30bbbda0d7f3049fbe541944d424285276ef1dd824637

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