Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebe42a9576358983…

MALICIOUS

PDF

49.1 KB Authoring application: Mobipocket Creator
MD5: bc555bee04127a5ed9f8926b6e038180 SHA-1: 1e9f2255d6fdc5df973bd3957fe91561cde70ad9 SHA-256: ebe42a9576358983858d9c141ce173333b5cf189a6b81f5356e1b62999da934f
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, as malicious. The critical PDF_SEO_LINK_FARM heuristic indicates the presence of 31 external PDF links, with the dominant host being gardentherapybliss.com. This suggests a link farm or redirection scheme, likely for SEO manipulation or to distribute further malicious content. The embedded URLs are the primary indicators of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://gardentherapybliss.com/uploads/1/3/0/4/130483155/vifabuxunavijil-fenowejaset.pdf
    • http://mwmbg.org/uploads/1/3/0/2/130291649/e555cfb.pdf
    • http://theyogaden.net/uploads/1/3/0/4/130489262/cfe35eb1685da.pdf
    • http://petoskeydrones.com/uploads/1/3/0/4/130435569/silaramezowunivo.pdf
    • http://productionairservices.com/uploads/1/3/0/6/130605230/zuxomutalej.pdf
    • http://sallydavisstudio.com/uploads/1/3/0/6/130639699/1362358.pdf
    • http://bfhsmalgradi.weebly.com/uploads/1/3/0/6/130605179/poverurisibejumatax.pdf
    • http://newleaf-dayspa.com/uploads/1/3/0/6/130605335/8744069.pdf
    • http://restoringhopeliberia.org/uploads/1/3/0/5/130589250/6981694.pdf
    • http://ruthnbrown.com/uploads/1/3/0/5/130539758/zifij.pdf
    • http://bebefoodie.ca/uploads/1/3/0/4/130476458/5788616.pdf
    • http://temebe.supervasya.ru/uploads/2020/01/27/dojimukajigem_kerapemamigifas_dupilagubo.pdf
    • http://wiririte.pirogisolnce.ru/uploads/2020/01/27/zurijawemuzoro.pdf
    • http://laserstanki.ru/uploads/2020/01/27/dff6d0f8a50d.pdf
    • http://sevilya-barselona.online/uploads/2020/01/27/4732187.pdf
    • http://mex.vendasuaempresa.com/uploads/2020/01/28/wuxexuw_divowu.pdf
    • https://bezirilesezozu.weebly.com/uploads/1/3/0/3/130324037/3402918.pdf
    • http://fencingaberdeen.com/uploads/1/3/0/6/130605222/migutaxukojalimor.pdf
    • https://wijobitirinivo.weebly.com/uploads/1/3/0/5/130590763/525aa8dfe9.pdf
    • http://eleanorfraser.com/uploads/1/3/0/3/130313166/a06f1c8a2ec1.pdf
    • http://mobilenotaryinca.com/uploads/1/3/0/2/130287462/gofupejoribitina.pdf
    • http://shardexplorers.com/uploads/1/3/0/6/130604945/130604945.html#guideline+value+for+survey+number+wise

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001657.bin
aac4e9cb8820593587484fa079fae8daa4ad267ad8998a9f769b7f3f6a4b6cc3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1657 8312 bytes
font_01_sfnt_off00006a6c.bin
3deab1beeee4662e30b5e7fbe3f59a5a9290dc668d07d280e42a1802b1c14551		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A6C 13464 bytes

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