Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3fe7457131c422c…

MALICIOUS

PDF

45.1 KB Created: 2020-03-30 15:10:14 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 9660f725464ebbae49e451be345f9032 SHA-1: f375bfbb79650a1971d5fcb735863c8e0bf319ed SHA-256: a3fe7457131c422c9a32ddcfcb4099f41f3458ed8628f18ba772b9ab1271a7f9
96 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or SEO abuse tactic. The primary external URI found is http://host49.carmichaelnl.com/uploads/1/3/1/3/131380531/131380531.html#moniciones+de+entrada+catholic.net+ciclo+a, which is likely intended to redirect users to malicious content or phishing pages. No scripts were extracted from this sample.

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://host49.carmichaelnl.com/uploads/1/3/1/3/131380531/131380531.html#moniciones+de+entrada+catholic.net+ciclo+a PDF link annotation
    • http://lovemugshop.com/uploads/1/3/0/7/130775029/906609.pdfIn PDF document text
    • http://aworldinneed.org/uploads/1/3/0/4/130488811/dojuviparuwafelop.pdfIn PDF document text
    • http://newhopeakron.com/uploads/1/3/1/3/131381991/3676333.pdfIn PDF document text
    • http://mimispackllc.com/uploads/1/3/1/0/131070489/13b73.pdfIn PDF document text
    • http://silvabuildings.com/uploads/1/3/0/9/130969130/911bf86217e6709.pdfIn PDF document text
    • http://obriendevelopments.org/uploads/1/3/0/5/130547286/tefafimo.pdfIn PDF document text
    • http://insidefrancishead.com/uploads/1/3/0/7/130739573/ec7f59d04fe7d0.pdfIn PDF document text
    • http://brightstaradopt.com/uploads/1/3/0/7/130738730/tigutokuloxa.pdfIn PDF document text
    • http://penelopehansen.net/uploads/1/3/0/6/130604841/bewurob-livedali.pdfIn PDF document text
    • http://hogararcangelgabriel.net/uploads/1/3/0/6/130620912/1028530.pdfIn PDF document text
    • http://computer-technology.org/uploads/1/3/0/5/130539758/45b91a80f58de8f.pdfIn PDF document text
    • http://noradragoon.com/uploads/1/3/0/8/130813546/wakenijozime.pdfIn PDF document text
    • http://dancecoachmastercamp.com/uploads/1/3/0/2/130271080/9828712.pdfIn PDF document text
    • http://conexpertos.co/uploads/1/3/0/6/130622110/lixijuxepunesuf.pdfIn PDF document text
    • http://roberthardi.com/uploads/1/3/0/6/130621322/favisu-wuwena-posageperez-junitupoforim.pdfIn PDF document text
    • http://5boxconsulting.com/uploads/1/3/0/2/130291585/juratekajegoramis.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E79 9288 bytes
SHA-256: ce8b84a711d1524da8cf946d1c462114054abb0369c81834c5b6cf782225421e
font_01_sfnt_off00009032.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9032 16028 bytes
SHA-256: ca889182d22413b1a5b6446cd5d954c095bfc2c8b2fec1022b19199100617195

Open this report in the interactive analyzer, or submit your own file for analysis.