Malicious PDF — malware analysis report

Static analysis result for SHA-256 24de3fab2e714bae…

MALICIOUS

PDF

40.1 KB Authoring application: LibreOffice
MD5: 7abbac8e9341ebc0e5b6765b113025a5 SHA-1: 5bb5fc7d27cbcd1f702128aae726636509b53784 SHA-256: 24de3fab2e714baefec42a7f755e726109f964c9ddc767c19c74cf40f0741d4f
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF documents hosted across various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection intent.

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://drillpeak.com/uploads/1/3/0/2/130289550/dawuxat.pdf
    • http://luckofthedraw.fun/uploads/1/3/0/6/130639746/8341004.pdf
    • http://hoy.bz/uploads/1/3/0/5/130540928/ruwinoviziwolosup.pdf
    • http://skyviewneweducators.info/uploads/1/3/0/4/130435978/4825d614c7d.pdf
    • http://matthewsprange.co.uk/uploads/1/3/0/7/130775455/6126229.pdf
    • http://themegahotspot.com/uploads/1/3/0/4/130436271/tuwamujij.pdf
    • http://doodadsandfandangles.com/uploads/1/3/0/6/130621407/wevevixuta_jexed_dorinoduriwes.pdf
    • http://customsmokingjacket.com/uploads/1/3/0/7/130775268/dce12cd0f.pdf
    • http://alevelapps.com/uploads/1/3/0/6/130605369/5b12a5b906ed94e.pdf
    • http://breathingzonetechnologies.org/uploads/1/3/0/5/130551287/lesorebar.pdf
    • http://villagearch.com/uploads/1/3/0/6/130604422/210671.pdf
    • http://1957rams.org/uploads/1/3/0/2/130272356/7863697.pdf
    • http://scubatribemaldives.com/uploads/1/3/0/4/130476215/vogotuwesozar.pdf
    • http://ilovemylifetshirt.com/uploads/1/3/0/6/130640081/3793295.pdf
    • http://galgodesign.com/uploads/1/3/0/3/130323723/3148459.pdf
    • http://www.jeffersonsbattleofthebars.com/uploads/1/3/0/6/130604710/6073825.pdf
    • http://annsmith.pink/uploads/1/3/0/6/130603968/dbb4c5b669.pdf
    • http://clgux.salon225.com/uploads/1/3/0/6/130620451/130620451.html#how+to+append+two+pdf+documents

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000040c1.bin
a3a2e68506d225c4525b15d0c2e272bc8b52e0ba9df6f96f117b5e0c4f484fe9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x40C1 7748 bytes

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