Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea95a1fa6b980b3a…

MALICIOUS

PDF

33.2 KB Authoring application: SWFTools
MD5: 2afffa0199e017f187dba06109e26d73 SHA-1: e9da9d97925fe0074591924dab9d2dff8b62f728 SHA-256: ea95a1fa6b980b3a640559ea75cbfa1594b13b0fffa8b262a7eb86615d551e6d
152 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 is indicative of a link farm or a distribution mechanism for further malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, aligning with the PDF_SEO_LINK_FARM heuristic. No scripts were extracted from this sample, and the document body content is heavily corrupted and unreadable.

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://bkdirrectconnect.com/uploads/1/3/0/6/130620667/dovimireteselezuweba.pdf
    • http://ns.dovmc.com/uploads/1/3/0/7/130740011/gokexalisemo-nanaxijedete-narup.pdf
    • http://retrofitmetalroofing.com/uploads/1/3/0/5/130543285/silovegopigirunitux.pdf
    • http://thehistorychase.org/uploads/1/3/0/8/130874247/ceb33cd91.pdf
    • http://ccf-ag.org/uploads/1/3/0/7/130739740/7793031.pdf
    • http://thetwigwarehouse.com/uploads/1/3/0/2/130272280/1db70ede.pdf
    • http://moodish.org/uploads/1/3/0/5/130550982/3cc957c06ce3b.pdf
    • http://pianomeester.com/uploads/1/3/0/5/130539922/06b4d0605.pdf
    • http://zentranet.ru/uploads/1/3/0/5/130543305/696fbcc.pdf
    • http://jennytung.com/uploads/1/3/0/7/130775817/watisawino-larorad-zivetobexefefux.pdf
    • http://somespice.com/uploads/1/3/0/7/130740232/3866338.pdf
    • http://artworkrunner.com/uploads/1/3/0/5/130543074/4a3ee271.pdf
    • http://xinaoboyulechengxinyu.f18.ebkf.org/uploads/1/3/0/7/130739415/1312159.pdf
    • http://thelookoutbigd.com/uploads/1/3/0/7/130740591/vulujula_tavetaxozugo.pdf
    • http://numidiabusinessstrategy.com/uploads/1/3/0/2/130291438/26763.pdf
    • http://drsdistinanddoyle.com/uploads/1/3/0/6/130640229/rezoji_meduxojaketetoz_zatorogixinoliw.pdf
    • http://advacarehealth.com/uploads/1/3/0/5/130550764/0c5dca4073e5.pdf
    • http://buypix.com/uploads/1/3/0/6/130621983/2c6182c392c551.pdf
    • http://reneegdesigns.com/uploads/1/3/0/6/130639580/sanababokigij_depijizavexo_zekomamotag.pdf
    • http://brandonericksonlaw.com/uploads/1/3/0/9/130969478/154053e01b9561.pdf
    • http://host138.carmichaelnl.com/uploads/1/3/0/6/130604636/130604636.html#hey+soul+sister+ukulele+chords+chordify

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002409.bin
f99859bc9fa7028ecf12a482006c982b1ebe92140f69d559fc4407542bafa0bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2409 7012 bytes

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