Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc3365f4775ad857…

MALICIOUS

PDF

27.8 KB Authoring application: ImageMagick
MD5: 954d0433c22a12df06a2d70bf783aee5 SHA-1: 4c86d9b11767683603e43211ffca1990a954064c SHA-256: fc3365f4775ad85767357b886b1e78f7c5b10eb7d5fa39b327163261800c9472
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF file contains a large number of embedded URLs pointing to other PDF files, a technique commonly used for SEO manipulation or to distribute phishing content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious distribution intent. The document body itself is largely obfuscated but contains references to the embedded URLs.

Heuristics 3

  • 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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://www.otrdriverrecruiters.com/uploads/1/3/0/4/130483239/7cd9374e0f0ae0.pdf
    • http://mail.freereformedchurchlangley.org/uploads/1/3/0/3/130379167/edeb24040ebcec8.pdf
    • http://onzestadstuin.nl.onzestadstuin.nl/uploads/1/3/0/4/130477775/pesogebatizunojog.pdf
    • http://braudsdrywall.com/uploads/1/3/0/4/130476152/df9b1d3d97.pdf
    • http://hostmaster.languagetree.org.uk/uploads/1/3/0/5/130546196/494ab0fc.pdf
    • http://laceramica.studio/uploads/1/3/0/2/130272340/4245041.pdf
    • http://www.naturallybeeutiful.com/uploads/1/3/0/8/130813592/6d98f.pdf
    • http://somorunning.com/uploads/1/3/0/2/130274281/31610bcc047874a.pdf
    • http://rodiermail.com/uploads/1/3/0/5/130541641/3463673.pdf
    • http://knockaroundllc.com/uploads/1/3/0/7/130739658/5412463.pdf
    • http://www.sweetbeachtravel.com/uploads/1/3/0/6/130620416/bufisumedezij-xuruzelu.pdf
    • http://www.rafterzitstimetogobble.com/uploads/1/3/0/6/130639114/130639114.html#optimization+of+distillation+column+using+aspen+hysys

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001a27.bin
fdaa6f032370826c2bebaea1aebf51b9a62aa75a4e857a869088961fe455eab8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1A27 6112 bytes

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