Malicious PDF — malware analysis report

Static analysis result for SHA-256 84891e8e6705bf9a…

MALICIOUS

PDF

42.5 KB Authoring application: Mobipocket Creator
MD5: 0bfb310f3856f62a7e16126c0d2d8cf9 SHA-1: aedc9cb575e00f13e45de647c4da637d031d59f5 SHA-256: 84891e8e6705bf9aa478e4c8c41776b9d6ce0f8ebe4a9c3cddad999d49a8227b
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded URLs pointing to external PDF files hosted on various domains. This behavior is indicative of a link farm or a phishing campaign designed to redirect users to malicious content. The ClamAV detection and ML classifier further support the malicious nature of this file.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://jinglejangle.life/uploads/1/3/0/3/130313263/c129e2bfd458bd3.pdf
    • http://shsucommunityconnections.com/uploads/1/3/0/6/130603763/5799726.pdf
    • http://blogwithme.club/uploads/1/3/0/4/130483902/wesewoteroledob-dudewixirumema-legixuwesekubi.pdf
    • http://diasporaleaders.com/uploads/1/3/0/6/130620551/7298862.pdf
    • http://nursinghomelawyeradvice.com/uploads/1/3/0/5/130589315/riresajuvujadu_mivena_bevafapefoze.pdf
    • http://howlingmoonfox.com/uploads/1/3/0/7/130739583/4050035.pdf
    • http://runnersofthenish.com/uploads/1/3/0/5/130544413/8b7b470.pdf
    • http://crtconcepts.com/uploads/1/3/0/6/130604405/vovewoxevo-kiwovikakifas-zagedopubufetag.pdf
    • http://truckwingsdev.com/uploads/1/3/0/6/130639438/zemowarurapivoj.pdf
    • http://hed-e.com/uploads/1/3/0/8/130813800/takuru.pdf
    • http://codematixproductions.com/uploads/1/3/0/6/130620528/3cf98.pdf
    • http://lsgreenclean.com/uploads/1/3/0/6/130640146/1977373.pdf
    • http://sugarcrowncookies.com/uploads/1/3/0/6/130620302/gusozatur-leriwixalivib-timorojadoz-juvikagaluwan.pdf
    • http://pennysyoga.com/uploads/1/3/0/8/130814761/kadof.pdf
    • http://nlspartners.com/uploads/1/3/0/3/130323697/2122262.pdf
    • http://canepaahclp.com/uploads/1/3/0/7/130740124/mugibeg_vumeginafiwiju.pdf
    • http://nwm12.club/uploads/1/3/0/3/130379408/bevetufokelaf_mezazuvitu_diwixobijanofa_fudivexoluput.pdf
    • http://huraworld.com/uploads/1/3/0/3/130379331/8962037.pdf
    • http://datascientific.org/uploads/1/3/0/2/130291499/fituxitude_zogarenode_dasuzapefisidi.pdf
    • http://melbournehotelplaceholder.devsite-1.com/uploads/1/3/0/5/130588622/130588622.html#fifa+world+cup+2018+india+time+pdf
    • http://sugarcrowncookies.com/uploads/1/3/0/6/130620302/gusozatur-leriwixalivib-timorojadoz-juvik

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004758.bin
750a4079f0e5e8dd64e20aaa6b600a7e2133bb5760147d3e73243f2caeda9ef8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4758 7932 bytes

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