Malicious PDF — malware analysis report

Static analysis result for SHA-256 20252d52574e4752…

MALICIOUS

PDF

38.8 KB Authoring application: QPDF
MD5: 8d91bdc3fa7d49eb59a7b5b80fd88406 SHA-1: d9c00ce77cf3d31d7e4d2eca0e510f5aed8db696 SHA-256: 20252d52574e4752f722b27b081705a19327adf9612221313488cd651a792bdf
120 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 other PDF files across various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content, as suggested by the 'PDF_SEO_LINK_FARM' heuristic and ClamAV detection. The document body contains technical jargon related to Vcenter and OVA deployment, which appears to be a lure to disguise the malicious links.

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://myfantasyfootballworld.com/uploads/1/3/0/6/130639231/1706627.pdf
    • http://beanbagswim.com/uploads/1/3/0/3/130323707/xekofekobe.pdf
    • http://cubcountry.org/uploads/1/3/0/2/130289305/zafabavoxekedadigeje.pdf
    • http://doobynuggets.com/uploads/1/3/0/4/130488583/726256.pdf
    • http://shelfstalker.net/uploads/1/3/0/3/130323155/9a57d650977695.pdf
    • http://scriptwriterscene.com/uploads/1/3/0/5/130543369/gefaritewe.pdf
    • http://amgreal.com/uploads/1/3/0/5/130588773/tejudowezagirepegaw.pdf
    • http://brandsview.com/uploads/1/3/0/2/130289628/106924.pdf
    • http://hyuk.info/uploads/1/3/0/2/130289735/13e719a.pdf
    • http://swoac.com/uploads/1/3/0/5/130590763/1940555.pdf
    • http://mt-akademie.com/uploads/1/3/0/6/130620598/lizumiwadizeb.pdf
    • http://ukcitizenshipbyinvestment.com/uploads/1/3/0/7/130738974/130738974.html#vcenter+6.+5++ova

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000123d.bin
144b3167a9b07f06af6ffcb930961c1b4a15c892516cd0fee6a6745524b6788e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x123D 8568 bytes

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