Malicious PDF — malware analysis report

Static analysis result for SHA-256 65451fc6d709b1ea…

MALICIOUS

PDF

40.5 KB Authoring application: SWFTools
MD5: c30c2a643e7eaf1a428a8e6cb8fb07f2 SHA-1: f7e22212dd213b75771fe18f0dda1395ed849a29 SHA-256: 65451fc6d709b1eaf821d41325789e8d5d746b7b2acc450625d02a36f79ab41e
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by multiple heuristics, including a critical alert for a link farm containing numerous external PDF links. The ML classifier also assigned a high probability of maliciousness. The embedded URLs suggest a phishing or malware distribution campaign, likely aiming to lure users to download further malicious content.

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 https://wafojoberewadaf.weebly.com/uploads/1/3/0/3/130379172/sedupejitefabev.pdf
    • https://vomojogugu.weebly.com/uploads/1/3/0/5/130539660/185f64ad20b7de7.pdf
    • https://damagemawi.weebly.com/uploads/1/3/0/3/130379114/4802603.pdf
    • http://xuru.iddingwitsof.mobi/uploads/2020/01/28/tapuwejosaberuzok.pdf
    • https://doforiru.weebly.com/uploads/1/3/0/4/130483682/fifofetatatubi.pdf
    • https://nizikivinagunel.weebly.com/uploads/1/3/0/3/130379291/vizeva.pdf
    • http://makovuxin.solomonka.online/uploads/2020/01/27/54e6ea7ae.pdf
    • http://maxuj.aktivators-windows10.ru/uploads/2020/01/28/vowopatonubelol_boguzikevokas_fanebukujuno.pdf
    • http://hrystalev-vasilyev.ru/uploads/2020/01/28/jonuridubuviluxu.pdf
    • https://jufinavunuzofiw.weebly.com/uploads/1/3/0/2/130271126/7321386.pdf
    • http://goj.changeurself.win/uploads/2020/01/27/xasajinowetoxupizon.pdf
    • http://successplus.info/uploads/2020/01/27/24154d6.pdf
    • http://pizzascaseras.org/uploads/2020/01/28/patefe.pdf
    • http://goper.brazilplan.club/uploads/2020/01/28/vigodibajevav.pdf
    • http://mupal.lechenienarkomanii-stavropol.ru/uploads/2020/01/27/sigowe.pdf
    • https://rafilaluxonijew.weebly.com/uploads/1/3/0/4/130476150/130476150.html#acrylic+resin+teeth+factory
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000013f7.bin
71ac54fc1e88bc5e6cd1602aa80bb52dee7ccdfc9f27dc379ebe08507ac117ec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13F7 8068 bytes
font_01_sfnt_off00004e32.bin
5043b1b2580bf46784346ce6d7cab7128a5016f611db728fe47a48170de03373		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4E32 19356 bytes

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