Malicious PDF — malware analysis report

Static analysis result for SHA-256 197c429402c564c7…

MALICIOUS

PDF

40.9 KB Created: 2020-04-12 04:46:39 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 11a49d90c4ba8d2569690cf44af3a8a3 SHA-1: d9d3cfd09c18d135e0af4839f71e0e23dc847dc6 SHA-256: 197c429402c564c798ade752e418ce9d3f010d49a1ab1db684dfbb35cfb3ae06
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or redirection scheme. The ML classifier also strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of numerous external URLs indicates a likely attempt to redirect the user to potentially malicious content or for SEO manipulation purposes.

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://elitepracticepartners.net/uploads/1/3/1/3/131379035/131379035.html#etapa+6+intimidad+vs+aislamiento
    • http://ecp-wi.net/uploads/1/3/0/3/130323755/0e6845ed.pdf
    • http://mycheaphelper.com/uploads/1/3/0/8/130874055/8225040.pdf
    • http://cascadesoft.net/uploads/1/3/0/4/130435553/gazexexivavegigo.pdf
    • http://geoffreygualano.com/uploads/1/3/0/4/130477009/7107038.pdf
    • http://scotiarootstours.com/uploads/1/3/1/4/131483361/votopivesexudit.pdf
    • http://tjsrentals.com/uploads/1/3/0/2/130289799/0320b.pdf
    • http://pktrailersales.com/uploads/1/3/0/6/130620556/jesukogodu.pdf
    • http://www.chaosandcuteness.com/uploads/1/3/0/6/130620874/ligugajuve_nirubagegolada.pdf
    • http://exloans.com/uploads/1/3/1/4/131483547/2954691.pdf
    • http://irrationalthinking.net/uploads/1/3/0/7/130738735/fotibomesidepir-mipobesavabad.pdf
    • http://justinschwartzlaw.com/uploads/1/3/1/4/131407514/6858080.pdf
    • http://shenteachers.com/uploads/1/3/0/6/130639160/mufiti.pdf
    • http://bitemenewengland.com/uploads/1/3/0/9/130969587/kaleninuji_jomusijomuranom_domebukezikakev.pdf
    • http://track6music.com/uploads/1/3/1/4/131406569/9425443.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000077d5.bin
b83f801b243610d8d7c1413db6889d72ae9a441b8979888c7938a23328b94796		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77D5 8224 bytes

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