Malicious PDF — malware analysis report

Static analysis result for SHA-256 980257f1a4b6b336…

MALICIOUS

PDF

33.7 KB Created: 2020-03-14 10:41:39 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-04
MD5: 6821f2c85762686c2bea243c42750709 SHA-1: a10723598eef3b74d0d38f49f730ed99e668e779 SHA-256: 980257f1a4b6b336acf9d8f2d3b079f2557a7e61cbd40615489b84a0393ceb23
96 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which are structured similarly, suggesting a link farm or SEO poisoning tactic. The document body, though partially corrupted, contains text related to product listings and metadata indicating it was generated by wkhtmltopdf. The primary attack pattern involves redirecting users to a series of external URLs, likely for phishing or to serve further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://host129.carmichaelnl.com/uploads/1/3/0/7/130740502/130740502.html#egyptian+cotton+fitted+sheet+only PDF link annotation
    • http://mojavemustangsports.com/uploads/1/3/0/3/130323337/68ac3d.pdfIn PDF document text
    • http://slainteslaine.com/uploads/1/3/0/3/130379266/dcecc9b5a9.pdfIn PDF document text
    • http://rejuvenationhealthcenter.net/uploads/1/3/0/6/130604594/6f2f8d98.pdfIn PDF document text
    • http://hostmaster.albhof-heidental.de/uploads/1/3/0/7/130738531/gejilubime.pdfIn PDF document text
    • http://katherinemacgregor.com/uploads/1/3/0/6/130639526/mokubijujeloli.pdfIn PDF document text
    • http://rwgsportmanagement.com/uploads/1/3/0/4/130435834/97cd35a87.pdfIn PDF document text
    • http://aprendeinlgesrapido.com/uploads/1/3/0/5/130588258/legajizibeluku.pdfIn PDF document text
    • http://luxuryapartmentvillars.com/uploads/1/3/0/4/130488700/c92543d.pdfIn PDF document text
    • http://microsoftproject-online.com/uploads/1/3/0/5/130590661/548a237d.pdfIn PDF document text
    • http://www.claudeyvanconne.net/uploads/1/3/0/3/130312912/wotaxema_powon_mitinaremuzip.pdfIn PDF document text
    • http://peoplefollowingjesusworldwide.org/uploads/1/3/0/2/130289284/7270849.pdfIn PDF document text
    • http://www.peachjamrecruitersguide.com/uploads/1/3/0/6/130604894/122fa5.pdfIn PDF document text
    • http://www.heathersbebeautifulbling.com/uploads/1/3/0/6/130620244/16f1f628a.pdfIn PDF document text
    • http://zhuangguo94.com/uploads/1/3/0/6/130620791/zenowedokabol-lipatinoxisula-kuwogaf.pdfIn PDF document text
    • http://www.managersclub.eu/uploads/1/3/0/6/130620674/jizodakeverasi.pdfIn PDF document text
    • http://catcash1.com/uploads/1/3/0/5/130544063/7684086.pdfIn PDF document text
    • http://jbbaircon.com/uploads/1/3/0/8/130874244/widegusobabilepev.pdfIn PDF document text
    • http://capitalball.com/uploads/1/3/0/6/130603989/c9a6f9.pdfIn PDF document text
    • http://colorwaycrochet.com/uploads/1/3/0/7/130775018/b335b012da4.pdfIn PDF document text
    • http://mail.swedesteelworks.com/uploads/1/3/0/7/130776047/tazizuvuxadapiteze.pdfIn PDF document text
    • http://dysfunctionalapparel.net/uploads/1/3/0/5/130551714/tirinaw-mejimokebogotop-raraveluron.pdfIn PDF document text
    • http://ngsports.net/uploads/1/3/0/6/130620515/4139168.pdfIn PDF document text
    • http://ipoopedinthewoods.com/uploads/1/3/0/2/130287898/9870918.pdfIn PDF document text
    • http://parowanaapersonalstorage.com/uploads/1/3/0/2/130288426/xizupenirixig_joveruxazera.pdfIn PDF document text
    • http://mx.faithwc.com/uploads/1/3/0/8/130874434/sukitemajezusasuremo.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ea8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EA8 6604 bytes
SHA-256: cc5608aebdd99e6a5e83e6c93f148dbb2467d43ab5b6036f4b76124a5b1851eb

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