Malicious PDF — malware analysis report

Static analysis result for SHA-256 84891e8e6705bf9a…

MALICIOUS

PDF

42.5 KB Authoring application: Mobipocket Creator First seen: 2020-09-24
MD5: 0bfb310f3856f62a7e16126c0d2d8cf9 SHA-1: aedc9cb575e00f13e45de647c4da637d031d59f5 SHA-256: 84891e8e6705bf9aa478e4c8c41776b9d6ce0f8ebe4a9c3cddad999d49a8227b
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO spam or to distribute further malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, classifying it as Pdf.Phishing.TtraffRobotInstall. No scripts were extracted, but the sheer volume of linked PDFs suggests a campaign to drive traffic or deliver payloads. The document body itself is heavily corrupted and unreadable.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • 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 In PDF document text
    • http://shsucommunityconnections.com/uploads/1/3/0/6/130603763/5799726.pdfIn PDF document text
    • http://blogwithme.club/uploads/1/3/0/4/130483902/wesewoteroledob-dudewixirumema-legixuwesekubi.pdfIn PDF document text
    • http://diasporaleaders.com/uploads/1/3/0/6/130620551/7298862.pdfIn PDF document text
    • http://nursinghomelawyeradvice.com/uploads/1/3/0/5/130589315/riresajuvujadu_mivena_bevafapefoze.pdfIn PDF document text
    • http://howlingmoonfox.com/uploads/1/3/0/7/130739583/4050035.pdfIn PDF document text
    • http://runnersofthenish.com/uploads/1/3/0/5/130544413/8b7b470.pdfIn PDF document text
    • http://crtconcepts.com/uploads/1/3/0/6/130604405/vovewoxevo-kiwovikakifas-zagedopubufetag.pdfIn PDF document text
    • http://truckwingsdev.com/uploads/1/3/0/6/130639438/zemowarurapivoj.pdfIn PDF document text
    • http://hed-e.com/uploads/1/3/0/8/130813800/takuru.pdfIn PDF document text
    • http://codematixproductions.com/uploads/1/3/0/6/130620528/3cf98.pdfIn PDF document text
    • http://lsgreenclean.com/uploads/1/3/0/6/130640146/1977373.pdfIn PDF document text
    • http://sugarcrowncookies.com/uploads/1/3/0/6/130620302/gusozatur-leriwixalivib-timorojadoz-juvikagaluwan.pdfIn PDF document text
    • http://pennysyoga.com/uploads/1/3/0/8/130814761/kadof.pdfIn PDF document text
    • http://nlspartners.com/uploads/1/3/0/3/130323697/2122262.pdfIn PDF document text
    • http://canepaahclp.com/uploads/1/3/0/7/130740124/mugibeg_vumeginafiwiju.pdfIn PDF document text
    • http://nwm12.club/uploads/1/3/0/3/130379408/bevetufokelaf_mezazuvitu_diwixobijanofa_fudivexoluput.pdfIn PDF document text
    • http://huraworld.com/uploads/1/3/0/3/130379331/8962037.pdfIn PDF document text
    • http://datascientific.org/uploads/1/3/0/2/130291499/fituxitude_zogarenode_dasuzapefisidi.pdfIn PDF document text
    • http://melbournehotelplaceholder.devsite-1.com/uploads/1/3/0/5/130588622/130588622.html#fifa+world+cup+2018+india+time+pdfIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004758.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4758 7932 bytes
SHA-256: 750a4079f0e5e8dd64e20aaa6b600a7e2133bb5760147d3e73243f2caeda9ef8