Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9a112bf3a555ef7…

MALICIOUS

PDF

35.6 KB Authoring application: Inkscape First seen: 2021-09-25
MD5: 5c3b082df5eb462a9f10c87bd744c6a5 SHA-1: 55982df364bd9e452b49403e4a39cd452d2c07f5 SHA-256: f9a112bf3a555ef7a1f2f006e52e2643b1aa53a6dcf050eabe005f20ac805774
152 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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 https://sugikojoti.weebly.com/uploads/1/3/0/2/130289458/835885.pdf In PDF document text
    • http://42hillcrest.com/uploads/1/3/0/4/130476456/zariwiwopilolar.pdfIn PDF document text
    • https://melerixezube.weebly.com/uploads/1/3/0/4/130435596/1eb677.pdfIn PDF document text
    • http://wixipise.itraktor.ru/uploads/2020/01/28/rapinuti.pdfIn PDF document text
    • http://annamaija-rissanen.com/uploads/1/3/0/6/130604215/buzimatisujasa_vetibutabu_jilefagav.pdfIn PDF document text
    • https://suzeviposavuru.weebly.com/uploads/1/3/0/5/130539885/4922c8167d15a9c.pdfIn PDF document text
    • http://chemicalcontainer.ru/uploads/2020/01/27/1d5cc045ff53641.pdfIn PDF document text
    • http://productionairservices.com/uploads/1/3/0/5/130551925/9161120.pdfIn PDF document text
    • http://tige.aeronika.com/uploads/2020/01/28/fejobexu_bufedagetowox_wejawuwuduw.pdfIn PDF document text
    • http://negovanar.paypal-support-limitted.com/uploads/2020/01/28/kesibobewi.pdfIn PDF document text
    • http://banuzelib.mummys-gold.ru/uploads/2020/01/27/wawasakevaxuwem_lilen.pdfIn PDF document text
    • https://mabovujuwav.weebly.com/uploads/1/3/0/4/130483322/ec15f4.pdfIn PDF document text
    • http://lilaccatfashions.com/uploads/1/3/0/6/130604807/6437666.pdfIn PDF document text
    • http://crafted-espresso.com/uploads/1/3/0/3/130379169/jupabusesoxo_nodixuvuz.pdfIn PDF document text
    • http://midlandma.org/uploads/1/3/0/5/130538841/6557913.pdfIn PDF document text
    • http://advancedsteeldetailingltd.com/uploads/1/3/0/2/130291589/megivebibixolil.pdfIn PDF document text
    • https://buvajufa.weebly.com/uploads/1/3/0/3/130379155/d4e7f8adb.pdfIn PDF document text
    • http://gepowasav.mover-mser.icu/uploads/2020/01/28/josogezupewovakidak.pdfIn PDF document text
    • http://firstworldnewpaltz.com/uploads/1/3/0/4/130436068/mejax_nebirijeji_luvuludavebulem.pdfIn PDF document text
    • http://warur.pokupka-super10.ru/uploads/2020/01/28/b16472d2182201.pdfIn PDF document text
    • http://alicanteapoyopsicologia.org/uploads/1/3/0/6/130604690/zamix_gudorirugiv.pdfIn PDF document text
    • http://serendipitousdesigns.net/uploads/1/3/0/6/130620965/130620965.html#pirateology+game+instructionsIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001653.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1653 7088 bytes
SHA-256: b0d913e2e9f2b5dd82df3348e7009565b527bca8b2186138bbdf793c18e3b9da
font_01_sfnt_off00004f64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F64 1708 bytes
SHA-256: 83459e82cebe561b9e65dda6a09953c9e35f75e5df0fa62a624e1833cc5b8086

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