Malicious PDF — malware analysis report

Static analysis result for SHA-256 22c842473a9dd397…

MALICIOUS

PDF

29.2 KB Authoring application: Mobipocket Creator
MD5: 847a49ed76fbecc5e000be070c63e43e SHA-1: a307a2f961a06df108691b9f614108caec5653eb SHA-256: 22c842473a9dd397bfd929f802cf6b3c1f0ac8c039b0f05924ea81055396c7ee
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 external PDF documents. This technique is often used for SEO manipulation or to distribute malicious payloads. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection intent. No scripts were extracted from this sample, limiting the ability to determine specific payload delivery mechanisms.

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://musingsfromthe.net/uploads/1/3/0/5/130546606/tagegaririse.pdf
    • http://n-hairthailand.com/uploads/1/3/0/5/130590567/zetodakep-galonatap.pdf
    • http://www.atrium-commodity.com/uploads/1/3/0/5/130551423/rezogi.pdf
    • http://gpistudies.com/uploads/1/3/0/5/130590036/6903368.pdf
    • http://rayraybeats.com/uploads/1/3/0/7/130775647/3637410.pdf
    • http://theskinnygourmand.com/uploads/1/3/0/8/130874536/gixatasulaweveforul.pdf
    • http://georgiaclubhouse.com/uploads/1/3/0/7/130776499/sinasomag-vuzep-xuxagined-ziwaropuzo.pdf
    • http://atcalloys.com/uploads/1/3/0/4/130483578/829406.pdf
    • http://tenlawsofshadow.com/uploads/1/3/0/6/130620847/sodebomi.pdf
    • http://sheilastonephotographer.com/uploads/1/3/0/6/130620379/pekivi.pdf
    • http://agehomeworkspot.com/uploads/1/3/0/7/130738578/lavetiwekufarelos.pdf
    • http://beachquartersresort.devsite-1.com/uploads/1/3/0/4/130488691/130488691.html#singular+and+plural+nouns+exercises+grade+5

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001c16.bin
069f4903dc1e65fa5805fa727d9f5b0c461b8b9fe0d262adcba53db1d23b95b6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1C16 7384 bytes

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