Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab978ed0dcb33562…

MALICIOUS

PDF

153.5 KB Created: 2021-05-07 14:46:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9afed1c8f8fe5d32ef1d6a027ac88eb8 SHA-1: 2dc92ae122f62c81557b372a900a3c40db86be50 SHA-256: ab978ed0dcb335629876763c2be402484b44a973abfadcbd8b93325873d36d94
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is a strong indicator of a phishing or malware distribution attempt. The ML classifier and ClamAV detection further support its malicious nature. The document body, though heavily obfuscated, suggests a lure related to construction material densities, likely to trick users into clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://pelibifir.ru/strik?utm_term=tabla+de+densidades+de+materiales+de+construccion
    • http://ewop.space/compliance_policies_and_procedures_templateptt5m.pdf
    • https://cdn.sqhk.co/rijakobebux/xHDjfp9/towafasupuz.pdf
    • https://mowazaxof.weebly.com/uploads/1/3/4/7/134704653/957724.pdf
    • https://feziriwavejoli.weebly.com/uploads/1/3/4/0/134096108/kukejufopanimiku.pdf
    • http://mysteps.online/wekuwitelivajezomolawugiqk3i.pdf
    • http://lifeit.pro/waripolubadajavudjcr3c.pdf
    • https://didaripetog.weebly.com/uploads/1/3/4/6/134685212/regisovalap.pdf
    • http://connexion-amelii.xyz/juzenemusoberukezeba8bu5e.pdf
    • https://cdn.sqhk.co/jifigetuxu/ijclYic/easy_cake_recipe_at_home_in_cooker.pdf
    • http://damvglaz1.xyz/jamaxeguxelamoruvgwiu.pdf
    • https://cdn.sqhk.co/xabovalizo/ujaiuij/rowiripijivurepow.pdf
    • https://cdn.sqhk.co/futogifoku/ghhihhA/icse_class_9_physics_chapter_1_notes.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/ddc4392b-1c9d-4de4-b771-b608b95e9975/xuwijoforikevigigu.pdf
    • https://uploads.strikinglycdn.com/files/5e5e59af-5602-43a3-98ea-50ca1ca98793/widipobagikazasujelof.pdf
    • https://uploads.strikinglycdn.com/files/8648350f-614c-48b6-90ed-1479fe266eaf/quality_management_in_software_engineering_notes.pdf
    • https://uploads.strikinglycdn.com/files/dc40787d-34f3-425e-b7d5-ad2953c3a898/79966022698.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001f93a.bin
7fcb22705249599e4f33f768ae1910661ccd886ccc49626cc18edc5a244efba6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1F93A 5056 bytes
font_01_sfnt_off00020a42.bin
911b161cd8805a5d9028073e56d06c2d35445732990b9542c11a51d4d63da97a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x20A42 12760 bytes
font_02_sfnt_off000232ae.bin
c988415812f594187b0a0ed75dc52802e798e1695b49bd300f8412a65040a449		 pdf-font-stream PDF embedded font (sfnt) at offset 0x232AE 16204 bytes
font_03_sfnt_off000247dd.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x247DD 4324 bytes

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