Malicious PDF — malware analysis report

Static analysis result for SHA-256 92870975f0e25ff9…

MALICIOUS

PDF

36.3 KB Authoring application: Adobe PDF Library 9.0
MD5: 81b4320ba367dc65ec1ff433f19eb0c3 SHA-1: e617fedccb73109decddb10f242d27df04e6046b SHA-256: 92870975f0e25ff9a6dccb848b476ccbeb283fb793cdb96896603f1a758281dc
128 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 other PDF files, identified by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further indicates a phishing or malicious download intent. The document body, though heavily obfuscated, contains references to 'word search games' and includes a URL that appears to be part of this lure, suggesting a social engineering tactic to encourage downloads.

Heuristics 4

  • 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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://openarmsbanduk.com/uploads/1/3/0/6/130604162/7365053.pdf
    • http://brisbanebirthing.com/uploads/1/3/0/5/130588980/f2648158f46.pdf
    • https://bebolalidoge.weebly.com/uploads/1/3/0/5/130550973/6689737.pdf
    • http://preschoolhouse.com/uploads/1/3/0/3/130313070/7025651.pdf
    • http://kazonopu.marcketplace.online/uploads/2020/01/27/rugaboti.pdf
    • http://reserve-money.top/uploads/2020/01/28/ba225.pdf
    • http://beach24h.com/uploads/1/3/0/3/130323237/23386.pdf
    • http://wisconsinweddingmusic.com/uploads/1/3/0/4/130488157/rojawes.pdf
    • http://mikeintucson.com/uploads/1/3/0/4/130483494/130483494.html#word+search+games+free++for+laptop

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001161.bin
a298e6dae2130e8a3e807de881de79d129174f1f249734cf73373370af541dae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1161 7904 bytes

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