Malicious PDF — malware analysis report

Static analysis result for SHA-256 5693180b389244dd…

MALICIOUS

PDF

30.6 KB Created: 2020-06-09 09:26:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ee874437da7820ad12614975a64d9cb5 SHA-1: 232fbb91492fe666dd08b63faa6e572df8043b02 SHA-256: 5693180b389244dd78a6a1809950833e4de0f5d7784dbf0fb45582ee00347dcf
94 Risk Score

Malware Insights

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

The PDF document contains numerous external links, a technique often used for SEO poisoning or to redirect users to malicious sites. The document body, though partially corrupted, includes a reference to 'Their eyes were watching god quizlet' and the wkhtmltopdf application, suggesting a lure to a fake quiz or study site. The presence of a PDF link farm heuristic further supports the attack pattern of redirecting users to a large number of external resources, likely for malicious purposes.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://74-123-78-212.mgwnet.com/uploads/1/3/0/5/130539373/130539373.html#their+eyes+were+watching+god+quizlet
    • http://publicmusicnetwork.com/uploads/1/3/1/1/131164394/0d2e7ad228.pdf
    • http://mx.monstereventsonline.com/uploads/1/3/1/4/131409463/eb1f631.pdf
    • http://pusdremote.com/uploads/1/3/1/6/131636774/sorodiwumex_dalozasimomitej_xujuk.pdf
    • http://hostmaster.shalomcoffee.vn/uploads/1/3/1/4/131408970/segekasaguruf_zibirowum.pdf
    • http://martincaicedo.com/uploads/1/3/0/5/130540683/femomimixiguw.pdf
    • https://guzubuxokom.files.wordpress.com/2020/06/xefobolabej.pdf
    • https://melixuv.files.wordpress.com/2020/06/mizulodifibanisesejat.pdf
    • https://xonagajib.files.wordpress.com/2020/06/13832250366.pdf
    • https://miteduxom.files.wordpress.com/2020/06/59098379517.pdf
    • https://sexedituf.files.wordpress.com/2020/06/41198460910.pdf
    • https://budekukagok.files.wordpress.com/2020/06/sedivikisuvategazigoz.pdf
    • https://susobagiv.files.wordpress.com/2020/06/48043116906.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_off00004e44.bin
945a62336bbcc5efd13423681b09cac50f5b4e290bbf3039e609118ec24a391d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4E44 9608 bytes

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