Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7c927b5158ecc32…

MALICIOUS

PDF

42.5 KB Authoring application: PDFBox
MD5: 097f615a46d72d7b76cdf63309e84581 SHA-1: 0eac6a4912b78649f2770cf23575ec87c340b4bb SHA-256: e7c927b5158ecc3243cbc2d54239f6691451f84e7fc212c185f8d10e77d309f1
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, indicating malicious intent. The PDF_SEO_LINK_FARM heuristic specifically identified a large number of external links within the document, suggesting a link farm designed to redirect users to potentially harmful content. No scripts were extracted from this sample, and the document body contained mostly garbled text, making it difficult to ascertain a specific lure.

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://cardinalparkequine.com/uploads/1/3/0/5/130548192/lopasixugipetam.pdf
    • http://laptopcamping.org/uploads/1/3/0/6/130639622/c2480.pdf
    • http://northstargateway.com/uploads/1/3/0/6/130604944/raxajuranefepag_zalomiwidutu.pdf
    • http://blaqsharkskate.com/uploads/1/3/0/6/130604198/dovuku_lebaxe_tudiko.pdf
    • http://innercompassworkshops.com/uploads/1/3/0/3/130323182/nadojonidigidututu.pdf
    • http://nirvanastorage.net/uploads/1/3/0/4/130435650/bikinofowirajozusoz.pdf
    • http://physicianmummyuk.com/uploads/1/3/0/6/130620565/8813185.pdf
    • http://languageofrecovery.us/uploads/1/3/0/4/130476432/8258046.pdf
    • http://pivotingdigital.com/uploads/1/3/0/3/130323445/2737572.pdf
    • http://lapearlhaircompany.com/uploads/1/3/0/8/130813398/97a5511.pdf
    • http://adentaaustralia.com/uploads/1/3/0/3/130324340/429c5a2c8a7b9.pdf
    • http://kotiidartat.site/uploads/1/3/0/7/130775731/e3eb83e3.pdf
    • http://phsspeechanddebate.org/uploads/1/3/0/5/130590666/1356909.pdf
    • http://twowheelpickerbicycleshop.com/uploads/1/3/0/6/130639760/pijigexufibodo.pdf
    • http://www.conniecoddington.com/uploads/1/3/0/6/130640191/jamelenidefenumim.pdf
    • http://tvwithoutcable.com/uploads/1/3/0/7/130740596/gusovegidegisug.pdf
    • http://alcoacommunityfcu.com/uploads/1/3/0/5/130540604/mikenelowa.pdf
    • http://www.knotscreekfarm.com/uploads/1/3/0/3/130380002/rejuvitonatakam.pdf
    • http://pineappleprosecco.com/uploads/1/3/0/2/130272072/5633829.pdf
    • http://vfrcflorida.org/uploads/1/3/0/2/130272266/2ffcc379.pdf
    • http://www.acoupleofcampdirectors.com/uploads/1/3/0/5/130540118/77012afa949.pdf
    • http://wwwdaimondholiday.com/uploads/1/3/0/3/130323290/130323290.html#autosomal+dominant+disorders+wikipedia

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000460f.bin
3b9b40929b709456439c66f8fae4aa7fa99e520964f5da30fc3ea2ea964b6e45		 pdf-font-stream PDF embedded font (sfnt) at offset 0x460F 7984 bytes

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