Malicious PDF — malware analysis report

Static analysis result for SHA-256 00708b45aeb85ef1…

MALICIOUS

PDF

38.5 KB Authoring application: QPDF
MD5: d3c472bee6bcff3e2b6e2827e6e7a996 SHA-1: fcf6a67b667b2a0a9840866e536a979b5b90451a SHA-256: 00708b45aeb85ef100f58400ff0e6c04cc8f3b60c902b622ed0d8a5a36b9e167
152 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded URLs pointing to other PDF files, a technique often used for SEO spam or to distribute further malicious content. ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier strongly indicate malicious intent. The document body itself appears to be corrupted or obfuscated, providing no clear user-facing 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://remodelkitchenbathroom.com/uploads/1/3/0/6/130639982/2384292.pdf
    • http://scrapmetalcollectionoxfordshire.co.uk/uploads/1/3/0/6/130620945/kifeduteletar.pdf
    • http://picturemehealthy.net/uploads/1/3/0/6/130604241/zuxogunakovu.pdf
    • http://mail.bridgingbrowncounty.org/uploads/1/3/0/7/130776120/kumimubikelotexi.pdf
    • http://joy-fully.us/uploads/1/3/0/6/130621387/rakerujinavi-sepobamimu-bekap.pdf
    • http://www.yogaddicted.com/uploads/1/3/0/6/130621443/64235854.pdf
    • http://drcongeniality.com/uploads/1/3/0/7/130739146/dab69fb.pdf
    • http://nccsdk12.net/uploads/1/3/0/6/130603823/fuvigonavebaxu.pdf
    • http://cpanel.africansafariimports.com/uploads/1/3/0/3/130379239/faximar.pdf
    • http://letoulebocailuntan334qi.f18.ebkf.org/uploads/1/3/0/6/130604871/5544555.pdf
    • http://rockcreekcounselingservices.com/uploads/1/3/0/6/130604423/498491.pdf
    • http://animatedstill.com/uploads/1/3/0/8/130874299/29d9a54.pdf
    • http://agnosticmarketing.com/uploads/1/3/0/6/130603890/medeperinononukerim.pdf
    • http://hohohohustle.com/uploads/1/3/0/7/130776041/1674204.pdf
    • http://witheringintheheat.com/uploads/1/3/0/6/130621446/wigekadatig.pdf
    • http://mta-sts.mail.taosabi.com/uploads/1/3/0/5/130544091/xubotamezen.pdf
    • http://portalindustries.org/uploads/1/3/0/7/130740561/7377440.pdf
    • http://host230.carmichaelnl.com/uploads/1/3/0/4/130490665/130490665.html#vlookup+function+in+excel+example

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003785.bin
afd50c23f18b9c5f24514ad80227afbac67ca7767846fa3633543080cb39b915		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3785 8728 bytes

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