Malicious PDF — malware analysis report

Static analysis result for SHA-256 7953fcdf30b303c4…

MALICIOUS

PDF

473.9 KB Created: 2021-05-11 23:53:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: fe01393101b6c86d0afdcf254826628f SHA-1: 94c4d17f26b77c0ff007112270c045578b6e8d06 SHA-256: 7953fcdf30b303c463c4f4db730dcd53804227123a8bb8ffd2bf6be2272590cb
136 Risk Score

Malware Insights

MITRE ATT&CK
T1059.007 JavaScript T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses a clipboard-command (paste-and-run) lure. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7836

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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://xezojetit.ru/strik?utm_term=nutribullet+rx+1700+costco PDF link annotation
    • https://wutusubefesuw.weebly.com/uploads/1/3/5/9/135961291/1458031.pdfIn PDF document text
    • https://bivawufixusu.weebly.com/uploads/1/3/1/4/131453301/kosogo.pdfIn PDF document text
    • https://bevizopet.weebly.com/uploads/1/3/0/7/130776142/ninewi.pdfIn PDF document text
    • https://gipebikurowa.weebly.com/uploads/1/3/4/0/134095939/8718ec991c0390a.pdfIn PDF document text
    • https://zuzuvisaze.weebly.com/uploads/1/3/0/7/130738998/vilifep-lawewenelugefi-fofakejegoduka-welomeviwe.pdfIn PDF document text
    • https://xufalawat.weebly.com/uploads/1/3/0/8/130814535/jurojesifenev_padejuli_zuwufajabu_sowiranuwesi.pdfIn PDF document text
    • https://xavimunemu.weebly.com/uploads/1/3/2/8/132815343/zovugezufo.pdfIn PDF document text
    • https://fexazajix.weebly.com/uploads/1/3/4/6/134669695/d0c7a9e22818410.pdfIn PDF document text
    • https://nifipidege.weebly.com/uploads/1/3/4/6/134677229/daritimu_bupof_venizafeke.pdfIn PDF document text
    • https://mobisikude.weebly.com/uploads/1/3/1/6/131606420/1134757.pdfIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/b87a405c-965b-48e1-adf2-65fa0284de2f/50386208495.pdfIn PDF document text
    • http://fevirafi.rf.gd/17420298395.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1cb251c8-20f9-4a0d-a4df-b6ac4c118804/what_color_wires_go_where_on_a_nest_thermostat.pdfIn PDF document text
    • https://91e55214-10ad-44cf-a10a-60a9392df58b.filesusr.com/ugd/e1c37d_9211fb8186a24882b42ded18388ac877.pdf?index=trueIn PDF document text
    • https://65f7c47b-6fa2-4aed-9649-637438a88329.filesusr.com/ugd/8fb471_a8b0a644afe643aa82f2e7a40f8332c1.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/a430f80c-2411-4a87-adf7-c6c9fc67400e/81994547564.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/301045e0-cd22-4d87-8fe3-48cb40fbabc6/is_vizio_model_e320-b2_a_smart_tv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a9a1a8f8-a87f-402d-a63d-8febecd16669/57347939422.pdfIn PDF document text
    • https://48cc712b-de5e-493e-a198-f8962849e22b.filesusr.com/ugd/d2751c_5fb4087147a84ca58b5d75b7fdac4d4a.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/da0bcc2f-a3f9-443d-b9c6-1bc1761ca554/code_of_canon_law_1983_latin.pdfIn PDF document text
    • http://vubixegigag.rf.gd/exposure_triangle_cheat_sheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e8a4395d-653f-43f5-8503-2e9798e76a63/summary_of_daisy_miller.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_009_off0006e20c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x6E20C 7004 bytes
SHA-256: a942551fe59c1c320230654d1c7c365fd8ede5e3336b3bb9b0513cf3d8cca60f
font_00_sfnt_off00064328.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64328 46104 bytes
SHA-256: 855e776dcec68bb1de1ed426e9204b8d379fdd8a12226d1dca5a8ae85ec82214
font_01_sfnt_off0006d0cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D0CD 5032 bytes
SHA-256: 1eb56af0a3abd8f8930abde190faa1454f35f03cf6d58296b755edd9da92922d
font_03_sfnt_off0006f774.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F774 26360 bytes
SHA-256: 9d943adc911252d79036e25438157624cd8091e22d6b2972cb8e6a03e89d90a6
font_04_sfnt_off000741a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x741A3 16204 bytes
SHA-256: e93acd332f5893643511f4cefd38969ad5c744ad1b08842a788b6be7d277dd15