Malicious PDF — malware analysis report

Static analysis result for SHA-256 b768a6dbd8ab13fe…

MALICIOUS

PDF

37.3 KB Authoring application: PDFBox
MD5: 953144a0d19fc67be8a07198323c8e1f SHA-1: 79b1853594cd73772183b6dd0e5aebaadc2d4554 SHA-256: b768a6dbd8ab13fec0a0bae6b375439b7db68e8c5082ba891de68a9340857ab9
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 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 as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the phishing and traffic generation 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://realmotivated.com/uploads/1/3/0/6/130620154/fogepudiku_nazilufojivi_woditoguterak.pdf
    • http://mvillstyles.com/uploads/1/3/0/3/130313610/f2033f8cd.pdf
    • http://bergeneducational.com/uploads/1/3/0/7/130738541/kipokufafewoboxe.pdf
    • http://blueseasmarinesurveys.com/uploads/1/3/0/3/130323581/gubofinepal_sezejo_fexojavafuwez_wakus.pdf
    • http://mysteinertech.com/uploads/1/3/0/2/130272442/nulazaxazazetodefafi.pdf
    • http://montanahorsesandmules.com/uploads/1/3/0/5/130551087/nanokelezuza.pdf
    • http://drbrentschillinger.com/uploads/1/3/0/4/130476469/4903272.pdf
    • http://chelseabaybooks.com/uploads/1/3/0/3/130313243/lagudolopadel.pdf
    • http://yincaravana.com/uploads/1/3/0/6/130603737/920a98fba70.pdf
    • http://bernardobellostudio.com/uploads/1/3/0/5/130546209/130546209.html#100+abstract+nouns+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001250.bin
494e9946e3a12cb09e6d929b6d839a026524a99313d02238d8ccab19ced950de		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1250 8040 bytes

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