Malicious PDF — malware analysis report

Static analysis result for SHA-256 815ebaf2510d7c1c…

MALICIOUS

PDF

43.3 KB Authoring application: pdf-parser
MD5: 6b1a38b1f70663158f782654528a5b06 SHA-1: 69fcb9fbd37f20fe242f78c85d51e5b45b39334e SHA-256: 815ebaf2510d7c1ce019a59fd77cc7eec3a47668d072f095d6d1368e2dfb6fd3
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF files, a technique commonly used for phishing or distributing further malware. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' strongly suggests a phishing or traffic redirection purpose. The document body, though partially corrupted, also contains some of these URLs, reinforcing the link farm attack pattern.

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://connecttbs.com/uploads/1/3/0/5/130539034/nejimurobef.pdf
    • http://mayragann.com/uploads/1/3/0/3/130313370/nogajepex_tusukukogaf.pdf
    • https://davuwopemib.weebly.com/uploads/1/3/0/5/130550758/6d0205c.pdf
    • http://wosimamep.tuyuy.icu/uploads/2020/01/27/mutipurit.pdf
    • http://lakeshoreregionponyclub.com/uploads/1/3/0/4/130479570/3052320.pdf
    • http://healthcaremanager.net/uploads/1/3/0/5/130539111/77879ee6a5ca4c8.pdf
    • http://express36.ru/uploads/2020/01/27/jawojugoniratuxub.pdf
    • http://girilya.com/uploads/1/3/0/6/130621076/jinerigenapis.pdf
    • http://luxurytrashremoval.com/uploads/1/3/0/3/130312974/febogasibosewu.pdf
    • http://fonariky.ru/uploads/2020/01/29/7451746.pdf
    • http://lob.begettest15.fun/uploads/2020/01/28/e3b8802405.pdf
    • http://vaseg.womanforyou.info/uploads/2020/01/28/zumik_zolijoguxi_tuzewusu.pdf
    • http://eastcoastspeedwaytv.com/uploads/1/3/0/2/130289636/volunazuvi.pdf
    • http://kerriturnerpianostudio.com/uploads/1/3/0/3/130324136/xagomuxojom.pdf
    • https://jiwaruna.weebly.com/uploads/1/3/0/4/130488833/5209304.pdf
    • http://vaxexu.in-op.fun/uploads/2020/01/28/6810761.pdf
    • http://dapojos.1-gc.biz/uploads/2020/01/28/muzif.pdf
    • http://mosbeton24.ru/uploads/2020/01/28/c481a1087c15cc9.pdf
    • http://urfacefix.com/uploads/1/3/0/6/130621285/130621285.html#mecanismos+de+patogenicidad+bacteriana

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000154b.bin
441ee27bac65bb59b024ef5e2e388a83037b4c0f224dd1ee89f2c2c608e85bbf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x154B 9548 bytes
font_01_sfnt_off00006c2c.bin
c048ac4ed90d63bfae46472f65f9cf6fc0bd5e75369f2d8f28771a6d96a2731c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C2C 3156 bytes

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