Malicious PDF — malware analysis report

Static analysis result for SHA-256 babc9bda508345a8…

MALICIOUS

PDF

37.0 KB Authoring application: OpenOffice.org
MD5: 960c45129ee58bc53914dd1a2e1addcd SHA-1: a5a0e6265bf691c7a86953817af5bd5fca68ccc0 SHA-256: babc9bda508345a8d2b265d04dabfa93b1bcc45291ccc995e54cbb47a410290b
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 links to external PDF documents hosted on various domains. This behavior is indicative of a link farm or a phishing campaign designed to drive traffic to malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the phishing classification.

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://mybestbets.org/uploads/1/3/0/5/130538986/6428771.pdf
    • http://hyuk.info/uploads/1/3/0/2/130287942/88b9d.pdf
    • http://carsforfood.com/uploads/1/3/0/4/130488401/xifomewuliw.pdf
    • http://nailbarmilwaukee.com/uploads/1/3/0/5/130551226/pofavelif.pdf
    • http://levipark.co.nz/uploads/1/3/0/3/130313458/6016088.pdf
    • http://johnxxiiireunion2018.ca/uploads/1/3/0/2/130273761/lafolatomevo.pdf
    • http://mtdromedaryuc.org/uploads/1/3/0/4/130483142/jinaraxinej.pdf
    • http://moderndynamics.org/uploads/1/3/0/6/130620819/volazixinarapusoraw.pdf
    • http://nationalfootballcheerleadersalumni.org/uploads/1/3/0/4/130476691/130476691.html#animal+lesson+for+preschoolers

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000115b.bin
cb0e5ccb16cee9cecfad772c821cd4adcc8fcd15e3a4885aecef7c354d653004		 pdf-font-stream PDF embedded font (sfnt) at offset 0x115B 8284 bytes

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