Malicious PDF — malware analysis report

Static analysis result for SHA-256 174bf65a6dd8fd55…

MALICIOUS

PDF

36.4 KB Authoring application: pstoedit
MD5: 25fe4bfd04b40b664302c30e2df3aeb0 SHA-1: 6b499fc691fab6e4f6a8ef071aa4e87dff85ecae SHA-256: 174bf65a6dd8fd556a8eb7744b99e084f3050b8cd0221738ca3207041824a378
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to other PDF files hosted on various domains. This pattern is indicative of a link farm or a distribution mechanism for further malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to 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://pivkofilm.com/uploads/1/3/0/6/130621455/raniwuxenejuv.pdf
    • http://macueisolar.com.au/uploads/1/3/0/7/130776514/lotin_naneke_vajuxises.pdf
    • http://didsburysmiles.com/uploads/1/3/0/2/130289746/gizarobotaroliwuxo.pdf
    • http://grossmaintenance.com/uploads/1/3/0/4/130483416/fizegenabal.pdf
    • http://sethgangwer.com/uploads/1/3/0/2/130291724/tarafemunaro_zepidobosedarar_tikewiveleda_fedezul.pdf
    • http://www.melissaclinkenbeard.com/uploads/1/3/0/7/130740077/kenipabedis_fiwam_zoputajusaduda_duvabokurarilen.pdf
    • http://myasianwiki.com/uploads/1/3/0/7/130739510/6858743abe586.pdf
    • http://www.showmeromancers.com/uploads/1/3/0/7/130775623/kovetuzefadumene.pdf
    • http://jimturrell.net/uploads/1/3/0/8/130813536/2739849.pdf
    • http://multilanguagebox.com/uploads/1/3/0/2/130271161/1254225.pdf
    • http://aimonpurpose.com/uploads/1/3/0/3/130323162/7400497.pdf
    • http://lilyfairjewellry.com/uploads/1/3/0/4/130490668/9f1bab1f946712.pdf
    • http://brianhaggard.com/uploads/1/3/0/2/130270738/deefc48e139.pdf
    • http://aaapaintingandturnkeyservices.com/uploads/1/3/0/8/130814469/8355f3f9fa1.pdf
    • http://wcafethailand.com/uploads/1/3/0/7/130738896/133480.pdf
    • http://fitkentucky.org/uploads/1/3/0/6/130620708/rasofikax-votegopoge-tajumezaja-gawujasixox.pdf
    • http://drobgyn.net/uploads/1/3/0/3/130379458/130379458.html#edgar+allan+poe+complete+tales+and+poems+fall+river

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003154.bin
db6ae56e3c9ff62984675a7b108d2c863f928b2a9e9a378da011641317a402aa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3154 8152 bytes

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