Malicious PDF — malware analysis report

Static analysis result for SHA-256 47e6452e97d05077…

MALICIOUS

PDF

43.7 KB Created: 2020-03-28 09:27:46 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 782f9754338b3454cf6858485eb67c3e SHA-1: ab845fc8f4b38966fcc3a4ac4a22156b143963a1 SHA-256: 47e6452e97d0507733a2085486fc90b3bdc7d34c1ed3ee0796c22e2b554d646d
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of external links, a technique often used for SEO manipulation or to distribute further malicious content. The document body text, though partially corrupted, includes a URL pointing to an HTML file and several PDF files hosted on various domains. The heuristic 'PDF_SEO_LINK_FARM' confirms the presence of a mass external link farm, indicating a likely intent to drive traffic or distribute malware through these links.

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://a1colville.com/uploads/1/3/1/1/131163960/131163960.html#modelo+de+demanda+de+prescripcion+adquisitiva+vehicular+via+judicial PDF link annotation
    • http://questdjs.com/uploads/1/3/0/7/130776824/4787224.pdfIn PDF document text
    • http://hub-pharmalink.com/uploads/1/3/0/6/130604744/753eab0cb63c.pdfIn PDF document text
    • http://edmundshellard.com/uploads/1/3/0/8/130814161/4959036.pdfIn PDF document text
    • http://tiffanynewman.net/uploads/1/3/0/6/130620475/rogoda-vexamanu.pdfIn PDF document text
    • http://www.route3a.com/uploads/1/3/0/6/130620708/a4c21cd.pdfIn PDF document text
    • http://landscapingelpaso.com/uploads/1/3/0/2/130272921/favileg-kenoza-mapoporuti.pdfIn PDF document text
    • http://npiafs.com/uploads/1/3/0/6/130621063/43ff3526c387a86.pdfIn PDF document text
    • http://188jinbaoboyulechengdailizhuce.f18.ebkf.org/uploads/1/3/0/2/130289380/tupilogalinobo-tedetuxobex-judojibadawig-kavan.pdfIn PDF document text
    • http://mail.ucofh.org/uploads/1/3/0/7/130776149/bubotolinafe_japubafudogok.pdfIn PDF document text
    • http://itsnothingood.com/uploads/1/3/0/2/130289458/de9efe01582d.pdfIn PDF document text
    • http://aaronevanbeek.com/uploads/1/3/0/5/130590464/1998012.pdfIn PDF document text
    • http://mta-sts.mail.advancedenergywork.com/uploads/1/3/0/2/130274199/56f2d3ee8d48.pdfIn PDF document text
    • http://vickyonthego.com/uploads/1/3/0/4/130478438/4420d9.pdfIn PDF document text
    • http://bkhgroup.net/uploads/1/3/0/6/130620889/sezodoxamebudur_wusogubaner.pdfIn PDF document text
    • http://sociallicious.social/uploads/1/3/0/5/130551777/3db86a98ee6bb.pdfIn PDF document text
    • http://debndaveswedding.com/uploads/1/3/0/6/130604327/96208413199.pdfIn PDF document text
    • http://wepalmthree.com/uploads/1/3/0/5/130546759/0298bc8d2eddfa.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 1

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_off00007f8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F8B 9460 bytes
SHA-256: 787bf1ddfd8a3aa9dace931d11cdbc11b50de8986b70e22f6f8c1d70a11f5ef7

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