Malicious PDF — malware analysis report

Static analysis result for SHA-256 1da8121edf107ebb…

MALICIOUS

PDF

51.3 KB Authoring application: pdf-parser
MD5: f3fb5d17eedb4b0cb92990b7ad9487d2 SHA-1: d28f0d3d7dd11cac4ddf64266f68b0e96291b716 SHA-256: 1da8121edf107ebb7fea6218e5b4eb233b54fc647cf17f216285b528de45ae5f
128 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified as a PDF_SEO_LINK_FARM heuristic. This suggests a tactic to distribute malicious content or phishing lures through search engine optimization. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious traffic distribution intent. No scripts were extracted from this sample, and the document body primarily contains obfuscated data and URLs.

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://alphaofficium.weebly.com/uploads/1/3/0/5/130589094/ed2da7796872e1.pdf
    • https://dimopemizizexa.weebly.com/uploads/1/3/0/2/130274370/jukeleloxipav.pdf
    • http://dutchesstraveldiary.weebly.com/uploads/1/3/0/6/130621501/d1d7f0d9.pdf
    • http://bestbroadbandsupplier2019.co.uk/uploads/1/3/0/3/130313153/tisudilexug_mezarefof.pdf
    • http://donotforgetme.org/uploads/1/3/0/6/130620549/zujojubudurulunobi.pdf
    • http://depewa.tehnews.ru/uploads/2020/01/28/xaxegixokoboxava.pdf
    • http://onlinebibelskole.info/uploads/1/3/0/4/130476657/8ee01bbfbd.pdf
    • http://sazawav.aerogarant.moscow/uploads/2020/01/29/4607540.pdf
    • http://bartolomeilaw.com/uploads/1/3/0/5/130545278/130545278.html#cabal.+exe+file

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000013ce.bin
1fcef18e73e7c486c2804957680a5a27c2cd613d2ca7bffe42d9ac5cbc5d07fe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13CE 9148 bytes
font_01_sfnt_off00005a2f.bin
67fc5177fd584259d92df2d04361ee5812aeaf6169251fafb29fd1ddf16900d3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A2F 16500 bytes
font_02_sfnt_off000071fa.bin
013ea181d5bc09ec1a0ec6c5c1777d30e76503e56010af68c71c1e4d5e51e2f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71FA 16644 bytes

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