Malicious PDF — malware analysis report

Static analysis result for SHA-256 941b01d55b33affd…

MALICIOUS

PDF

81.0 KB Created: 2020-11-18 17:02:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 601f0c77d4d6d3e6fd6858bfe4f21da4 SHA-1: ec63eacdccbe52b531d2132eeb6f5e88cc502242 SHA-256: 941b01d55b33affd7bc360b964e5c332cfae9d3ce28afa2adce0e713787732f6
156 Risk Score

Malware Insights

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

The PDF file contains numerous external links, many pointing to Weebly-hosted PDFs, suggesting a link farm or redirection mechanism for malicious content. The presence of a URL with a 'movie' query parameter indicates a lure to entice users to click on potentially harmful links. ClamAV and ML classifiers also flagged this file as malicious, specifically as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 https://traffnew.ru/strik?utm_term=boonie+bears+entangled+worlds+full+movie
    • https://mufedagejex.weebly.com/uploads/1/3/4/7/134726032/9373972.pdf
    • https://zozigowava.weebly.com/uploads/1/3/4/3/134387142/1b90acf.pdf
    • https://guzebiba.weebly.com/uploads/1/3/4/3/134368687/waberebakokixedose.pdf
    • https://tivakoxidedopa.weebly.com/uploads/1/3/0/7/130776298/sibipunoma_navegevin.pdf
    • https://vibitaxipeni.weebly.com/uploads/1/3/4/5/134526550/8678085.pdf
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/3409757.pdf
    • https://dozasasakebo.weebly.com/uploads/1/3/1/1/131164234/gezuluga_bevowas.pdf
    • https://cdn-cms.f-static.net/uploads/4375197/normal_5f9bdca4e5456.pdf
    • https://gedaxafi.weebly.com/uploads/1/3/4/3/134340736/xasatumaneloraf-lapizuzuniz.pdf
    • https://timelasabo.weebly.com/uploads/1/3/4/3/134345700/segazur.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/a9df1001-54f1-4487-b023-a929c9162b8e/super_mario_galaxy_2_green_stars_locations.pdf
    • https://uploads.strikinglycdn.com/files/86222ec3-f083-448d-b36c-95c3a1568b83/vawubukape.pdf
    • https://uploads.strikinglycdn.com/files/5b0b73ab-d2da-4ecd-9c2f-db76913a56d4/left_to_tell_discovering_god_amidst_free.pdf
    • https://uploads.strikinglycdn.com/files/5f57a1ef-c0ca-4451-865a-c7c12a057e3f/the_greek_philosophers_from_thales_to_aristotle.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d82b.bin
be241a41964521ca28e66919d9c2e1f7fd908802979132d783a51383a59e948d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD82B 9604 bytes
font_01_sfnt_off0000f889.bin
82c606b6d1b1629eb65d26c9ca6d7f93d27bd928c3f5168c90efddd457c1c368		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF889 5568 bytes
font_02_sfnt_off00010b7a.bin
c2dfc2081d70992a20bf2238ced8ba9c5f3e11fb05b2f9d3bd5284a8b9cbc3d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10B7A 11992 bytes

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