Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d8c2dca698d8bdc…

MALICIOUS

PDF

40.3 KB Authoring application: QPDF
MD5: 4af248d7a072e9b930b2943036ac3707 SHA-1: 9617a893713ab197ec5c7513790baa13af3bc47c SHA-256: 9d8c2dca698d8bdc78d60db03e4245f21250b9aa7a4e4b48ee3c55a8ffa2cf1b
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links to external PDF files hosted across various domains. This behavior is indicative of a link farm or SEO manipulation tactic, as flagged by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection further supports its malicious classification. No scripts were extracted from this sample, and the document body content is heavily obfuscated and unreadable, preventing a more detailed analysis of the immediate user-facing lure.

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://familyrvadventures.com/uploads/1/3/0/2/130291702/wipapelave_fibejijasisud.pdf
    • http://bardswine.com/uploads/1/3/0/7/130775047/4857130.pdf
    • http://rootedsuds.com/uploads/1/3/0/7/130775088/6805174.pdf
    • http://mail.mgoberhofen.ch/uploads/1/3/0/9/130969656/wunen-satoz-lubod-favidopu.pdf
    • http://arielledollinger.com/uploads/1/3/0/6/130605307/xirewogi.pdf
    • http://yoniwidesign.com/uploads/1/3/0/5/130590367/9509953.pdf
    • http://wholistichealthwithroz.com/uploads/1/3/0/7/130775021/e25ce3835f.pdf
    • http://moorereplacements.net/uploads/1/3/0/6/130604305/4bc70f1f9f.pdf
    • http://www.clinicopath.com/uploads/1/3/0/5/130545597/8190564.pdf
    • http://desatascosrubi.com/uploads/1/3/0/4/130477864/gitaz.pdf
    • http://collincurry.com/uploads/1/3/0/7/130739878/19551153.pdf
    • http://www.fishermans-outfitter.com/uploads/1/3/0/2/130272850/2315578.pdf
    • http://inthehoopembroiderydesigns.net/uploads/1/3/0/3/130323928/kewogewe_wumikoxiv.pdf
    • http://russianair.com/uploads/1/3/0/5/130542860/4224187.pdf
    • http://melas.store/uploads/1/3/0/7/130739459/xonubedizojirebolo.pdf
    • http://uriqr.com/uploads/1/3/0/5/130589245/vaniwajew.pdf
    • http://geraldkersh.com/uploads/1/3/0/6/130622024/8666516.pdf
    • http://radiantrebelcollective.com/uploads/1/3/0/6/130604244/badexozeripepoku.pdf
    • http://www.24krideshare.com/uploads/1/3/0/6/130604136/02582.pdf
    • http://blackstonelodgewb.devsite-1.com/uploads/1/3/0/4/130476454/130476454.html#cover+letter+sample+for+teaching+job+with+no+experience
    • http://www.fishermans-out

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003f75.bin
521fd5777a487c62ae3aca6fde5964a218acc37ae1662c1c512c25324a96cd7f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3F75 7908 bytes

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