Malicious PDF — malware analysis report

Static analysis result for SHA-256 7cbb025e3a96d0fc…

MALICIOUS

PDF

40.9 KB Authoring application: PDFBox First seen: 2020-09-24
MD5: 4568e27ad2a9465cc69bb97ca91878d3 SHA-1: a3139809db69d68d981b783353a2d8a469a1da53 SHA-256: 7cbb025e3a96d0fc5437e46fe4d9a652891d994a93bed9c2e8f26afa92561839
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to other PDF files hosted on various domains. This behavior is indicative of a link farm, often used for SEO manipulation or to distribute malicious content. The ClamAV detection and ML classifier further support its malicious nature, classifying it as phishing-related malware.

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://evangelismfireministries.net/uploads/1/3/0/6/130640042/porufej.pdf In PDF document text
    • http://occasionsbygigi.com.au/uploads/1/3/0/6/130604733/remikele.pdfIn PDF document text
    • http://goldendealusa.com/uploads/1/3/0/2/130289247/54ce9307121235d.pdfIn PDF document text
    • http://trailofhumanity.com/uploads/1/3/0/4/130477201/fusasomora.pdfIn PDF document text
    • http://capehomerepair.com/uploads/1/3/0/7/130740298/6936126.pdfIn PDF document text
    • http://ntellectlaw.com/uploads/1/3/0/6/130639509/suseniguta.pdfIn PDF document text
    • http://wat.copyrightcontact-100000641253254.com/uploads/2020/01/29/090e7e.pdfIn PDF document text
    • http://canopymgm.com/uploads/1/3/0/6/130639355/625b143dc6.pdfIn PDF document text
    • http://moayas.com/uploads/1/3/0/6/130604952/8913565.pdfIn PDF document text
    • http://nutgraf.ca/uploads/1/3/0/5/130590257/rugoxebolenox-fexakorof-xutudanigurinup-velebopamezibo.pdfIn PDF document text
    • http://mi-12ventures.com/uploads/1/3/0/5/130543169/2072c310003d5c.pdfIn PDF document text
    • http://nupelicanparty.org/uploads/1/3/0/7/130775422/130775422.html#arithmetic+operators+in+c+language+pdfIn PDF document text

Related samples 2

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_off0000132e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x132E 8784 bytes
SHA-256: d3e48f16ac2272848d37ebda9f9581f154f923381154ece9785d2ede90309871

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