Malicious PDF — malware analysis report

Static analysis result for SHA-256 d13d6b5812c2f645…

MALICIOUS

PDF

37.0 KB Authoring application: PDFedit
MD5: f2092986592837329a83eb4b793d126d SHA-1: 86551940897c527e6ce5e83d99b759bd7edaa8ec SHA-256: d13d6b5812c2f645581e8d152080480573568ba07aa9fd42380e7d73994c707e
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical PDF_SEO_LINK_FARM rule and ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0. The document body contains a large number of embedded URLs, indicating a link farm designed to redirect users to potentially malicious content. The primary purpose appears to be SEO-based redirection, likely for phishing or malware distribution.

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://athleticsnorth.net/uploads/1/3/0/5/130541462/7717473.pdf
    • http://geokendall.com/uploads/1/3/0/5/130589137/noziwuzodunug.pdf
    • http://tupupof.vrkuzbass.online/uploads/2020/01/28/377168.pdf
    • http://afuture-ahope.com/uploads/1/3/0/6/130603989/benerawewewogi-wadubevi.pdf
    • http://loniduz.lada-detail.su/uploads/2020/01/27/e07f2e343c2f88a.pdf
    • http://eudaimoniatravelblog.com/uploads/1/3/0/4/130435875/nalaruv.pdf
    • http://padijike.ethsmart.biz/uploads/2020/01/27/fc5d005498ae88.pdf
    • http://minnesotakindnessproject.org/uploads/1/3/0/4/130479312/lebovowuza.pdf
    • http://xakadis.1304shopff.fun/uploads/2020/01/28/jipuxotetagumegok.pdf
    • http://kgwritingservices.com/uploads/1/3/0/2/130292179/29324.pdf
    • http://zimokajeke.planbani.ru/uploads/2020/01/27/8366299.pdf
    • http://lasew.tm-ivanova.ru/uploads/2020/01/28/3726354.pdf
    • http://zogidota.nickel-logine.com/uploads/2020/01/28/4d77200b.pdf
    • http://therustyrasta.ca/uploads/1/3/0/4/130489727/beresifusogamat.pdf
    • http://ankezimmermann.ca/uploads/1/3/0/6/130639417/130639417.html#download+surah+rehman+with+urdu+translation

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000152a.bin
a5b12747d084dd63356d5e40f2a5e42aad561509b01945049a721924e608db97		 pdf-font-stream PDF embedded font (sfnt) at offset 0x152A 6944 bytes
font_01_sfnt_off0000465f.bin
dd7fc09816a88cf485b7f76683545528b1fcea3f4787a32cfe3da26b9cb98308		 pdf-font-stream PDF embedded font (sfnt) at offset 0x465F 16852 bytes

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