Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e8e45245b572cdc…

MALICIOUS

PDF

86.3 KB Created: 2021-03-27 22:24:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 84b7fd9bda952d52b63cd95053d32ac7 SHA-1: ddfa2b3e918c7146ee683fd8bebaa8925d091e3c SHA-256: 0e8e45245b572cdcb0295488ba00b013b3df60e562e6e8d8fd63216c187b7be4
96 Risk Score

Malware Insights

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

The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. The embedded URL, https://resalured.ru/wix?keyword=minecraft+redeem+code+list, suggests a phishing or credential harvesting attempt disguised as a Minecraft redeem code list. No scripts were extracted, but the PDF structure and URL indicate a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • 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://resalured.ru/wix?keyword=minecraft+redeem+code+list
    • https://cdn-cms.f-static.net/uploads/4496389/normal_5fd22c4088c9e.pdf
    • https://cdn-cms.f-static.net/uploads/4414169/normal_605d7519b3cd2.pdf
    • https://cdn-cms.f-static.net/uploads/4451374/normal_60188786c561c.pdf
    • https://cdn-cms.f-static.net/uploads/4456377/normal_6016e5adb645c.pdf
    • https://cdn-cms.f-static.net/uploads/4387420/normal_60571dfb2dcd1.pdf
    • http://xivekoto.medianewsonline.com/adobe_acrobat_reader_app_download.pdf
    • https://cdn-cms.f-static.net/uploads/4486963/normal_5fe8b30620f89.pdf
    • https://static.s123-cdn-static.com/uploads/4456134/normal_5ff416962bf71.pdf
    • http://mixutadumekaje.mypressonline.com/86567900331.pdf
    • https://cdn-cms.f-static.net/uploads/4413986/normal_6038e02b94fdb.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/05b4f27b-b8c7-4a2e-8828-15e57a3cea16/intervention_and_teaching_strategies_in_hindi.pdf
    • http://puwagof.rf.gd/rabugitesibebelu.pdf
    • https://uploads.strikinglycdn.com/files/4c8e7ddf-6110-4810-86a9-26123057776f/61191738693.pdf
    • https://uploads.strikinglycdn.com/files/29ecced2-6d9f-48b2-ae81-a31949be9238/graco_crib_parts_instructions.pdf
    • http://pulitisagot.atwebpages.com/36791011643.pdf
    • http://pozirumine.epizy.com/wafogew.pdf
    • http://kosezofejesuxef.atwebpages.com/2010_camaro_price_range.pdf
    • http://lipabarud.atwebpages.com/air_force_previous_question_paper.pdf
    • https://uploads.strikinglycdn.com/files/340757d5-2128-4e22-b169-64edae67d77f/can_a_dell_optiplex_7010_run_fortnite.pdf
    • http://kusababi.onlinewebshop.net/xadojigok.pdf
    • https://uploads.strikinglycdn.com/files/62e4f79e-8ffa-4cf5-9382-f4669dee97db/jbl_sb400_not_working.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000110a7.bin
5a2d5f096c4b483fcbf1c9d32be86535e7a68908181572ea7731d2a78b7c1942
pdf-font-stream PDF embedded font (sfnt) at offset 0x110A7 5172 bytes
font_01_sfnt_off00012235.bin
b8561d40209d4357630ed4e79b526c2fd49ae69c517c2595f683f1676dd69156
pdf-font-stream PDF embedded font (sfnt) at offset 0x12235 12196 bytes