Malicious PDF — malware analysis report

Static analysis result for SHA-256 7763a33569c66aa9…

MALICIOUS

PDF

80.9 KB Created: 2021-05-22 02:06:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c71ebe0b9e93aa3093ae0686f71871af SHA-1: d1ba99a4da21288011474b662cd45a614bacd620 SHA-256: 7763a33569c66aa97932821f9044f06fd434051d86301622267a7a5d17b91cb8
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of an embedded URI pointing to 'bologen.ru' suggests a phishing or credential harvesting attempt. While no scripts were explicitly extracted, the PDF structure and embedded URI are strong indicators of a phishing attack, likely using a lure to direct users to a malicious website.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://bologen.ru/wb?keyword=procreate%20portrait%20lesson
    • https://bemebedutor.weebly.com/uploads/1/3/4/6/134624352/melofufosiwijen.pdf
    • https://cdn-cms.f-static.net/uploads/4424026/normal_603c5ccc382de.pdf
    • https://severuzilun.weebly.com/uploads/1/3/4/7/134710190/mozunatuvoxe.pdf
    • https://nubarosu.weebly.com/uploads/1/3/4/7/134726157/goxutatir.pdf
    • https://repugonajipivup.weebly.com/uploads/1/3/0/8/130814926/2076730.pdf
    • https://buparemekixa.weebly.com/uploads/1/3/0/7/130739227/9d38f83981b58.pdf
    • https://metuliwilive.weebly.com/uploads/1/3/4/3/134386481/4764994.pdf
    • https://bigonokefexix.weebly.com/uploads/1/3/4/5/134518339/woravofusame.pdf
    • https://cdn-cms.f-static.net/uploads/4453579/normal_5fd8ddcdcd5cf.pdf
    • https://josazosanika.weebly.com/uploads/1/3/4/3/134339908/sajutibisifefosafa.pdf
    • https://fojaloda.weebly.com/uploads/1/3/0/7/130776233/395d893.pdf
    • https://cdn-cms.f-static.net/uploads/4418379/normal_60652e27d88b8.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/megodipewukitoj/literature_vocabulary_worksheets.pdf
    • https://uploads.strikinglycdn.com/files/52d29101-b6e9-4086-8ed0-c363edb1b6ea/what_are_the_rules_of_bible_interpretation.pdf
    • https://s3.amazonaws.com/jajuzasalikirut/sig_sauer_p220_compact_sao_for_sale.pdf
    • https://uploads.strikinglycdn.com/files/b0aeba28-9d0c-442e-96ae-aa013db21a8e/fijogogorozaruxuxopanap.pdf
    • https://s3.amazonaws.com/nawuvud/how_to_clean_a_hoover_windtunnel_pro_pet.pdf
    • https://uploads.strikinglycdn.com/files/effaee90-a4f6-4bc5-86c2-90f325599a54/hersheys_kitchens_special_dark_chocolate_chips_cocoa_percentage.pdf
    • https://uploads.strikinglycdn.com/files/26bda3e5-d54c-49c2-8d52-d957eb6ce43f/how_do_i_reset_the_maintenance_light_on_a_2012_toyota_camry.pdf
    • https://uploads.strikinglycdn.com/files/23dba7e5-f95e-4552-9b78-4f0e28eb0dcc/how_to_load_a_pellet_in_a_760_pumpmaster.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_off000102b1.bin
46243c7172e4c7ee9ca664f25cc10c00a6b0c417a62eba3a867619638a374385		 pdf-font-stream PDF embedded font (sfnt) at offset 0x102B1 4928 bytes
font_01_sfnt_off00011382.bin
4d82b5a81a3e6a4f79606df45474dadedfb409f4f9596e2f1bae79131c538260		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11382 10236 bytes

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