Malicious PDF — malware analysis report

Static analysis result for SHA-256 7dfe9903965f72af…

MALICIOUS

PDF

46.5 KB Authoring application: PDFBox
MD5: dc7ec81382f77cae6bb099c72aa2a3e8 SHA-1: 48db4e875429ab184884b03efd34a27909947c3a SHA-256: 7dfe9903965f72afb9833345d1e020710a8b2dfab3e7efe3aa8dd3b555217f00
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier and ClamAV detection strongly suggest malicious intent, specifically identified as phishing. The document body is heavily obfuscated and truncated, preventing a clear understanding of its specific lure, but the overall pattern points to a link-based distribution or SEO abuse campaign.

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://healthcareforagents.com/uploads/1/3/0/4/130436173/wukifejabifut-modujajafatoxal-sivajibugupuwe-pufes.pdf
    • http://cubriendocfl.net/uploads/1/3/0/4/130476342/9a9aed2c.pdf
    • http://betrecordings.com/uploads/1/3/0/2/130270985/6670743.pdf
    • http://munrofg.com.au/uploads/1/3/0/7/130738730/jodewimisiju-motavax-wizal.pdf
    • http://beyondlimitlesspossibilities.com/uploads/1/3/0/3/130323764/6223700.pdf
    • http://myshermer.net/uploads/1/3/0/4/130435589/3a56e2e8f910.pdf
    • http://golferstail.com/uploads/1/3/0/5/130543280/vogesewasopuji.pdf
    • http://cloverfamily.net/uploads/1/3/0/4/130436261/7452583.pdf
    • http://visionglobalcapital.org/uploads/1/3/0/6/130621315/timepowamujavafon.pdf
    • http://mytinyhome.net/uploads/1/3/0/5/130588505/pazedojifibapu-gunupegufifa.pdf
    • http://hostmaster.belinda-jones.com/uploads/1/3/0/7/130775375/timegagitakal-vuvej.pdf
    • http://lucernervpark.com/uploads/1/3/0/5/130540214/39a3a29.pdf
    • http://parodontistebrossard.com/uploads/1/3/0/7/130775015/0de16ae048.pdf
    • http://qpmllccompany.com/uploads/1/3/0/8/130813496/802728.pdf
    • http://sostenibilidaddelmenor.com/uploads/1/3/0/7/130776316/7997575.pdf
    • http://nutri-net.fr/uploads/1/3/0/4/130489841/1721172.pdf
    • http://gameoffree.cash/uploads/1/3/0/6/130640239/vijakinazirenoxagu.pdf
    • http://alexkrushh.com/uploads/1/3/0/8/130874043/847027.pdf
    • http://pinktopia.org/uploads/1/3/0/3/130379912/guvega-puras.pdf
    • http://www.chestermarketblog.com/uploads/1/3/0/8/130813111/20bf90d8033ec1f.pdf
    • http://www.youvebeencarded.com/uploads/1/3/0/2/130289198/banubelepo_nodagavixo_sevejiwaji.pdf
    • http://12250parkway.com/uploads/1/3/0/2/130287867/35838.pdf
    • http://deltasoulsoftware.com/uploads/1/3/0/6/130621805/5205823.pdf
    • http://ladyandthegeek.net/uploads/1/3/0/4/130435774/7ba20e64d04cd.pdf
    • http://wrdq8.bpmtc.com/uploads/1/3/0/6/130621220/130621220.html#best+seller+books+on+time+management

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005055.bin
b5b8f972fcc17e6f653a2e6122c49784ff45e3f65ff721719ac6143f43720358		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5055 9008 bytes

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