Malicious PDF — malware analysis report

Static analysis result for SHA-256 d23fdcac44dd52c4…

MALICIOUS

PDF

74.9 KB Created: 2021-05-15 10:54:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 6cd437813b6f3a2d710640ebfbc25851 SHA-1: 4606a2e0b4b5b329b0b97b2a01ee105419f96de0 SHA-256: d23fdcac44dd52c4f7e69a3f9873de114e952e9c2b0a782e80adbf7483b911d0
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. 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 0.9998

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://mezovuduw.ru/strik?utm_term=guns+germs+and+steel+episode+2+conquest+answers PDF link annotation
    • http://peskomment.ru/digital_marketing_agency_portfolioxz5u6.pdfIn PDF document text
    • http://fivabigenarewo.22web.org/kagedabevidijat.pdfIn PDF document text
    • http://rubisteq.online/kaviduledareq4i.pdfIn PDF document text
    • http://potobol.22web.org/85914547391.pdfIn PDF document text
    • http://rugitezeko.22web.org/polarity_test_of_transformer.pdfIn PDF document text
    • http://fomafod.22web.org/adverbial_clause_practice.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://f405dec1-7f90-4f4c-a861-5286f67d0127.filesusr.com/ugd/ab922d_3cae437ba17342f7b631395f1d61b434.pdf?index=trueIn PDF document text
    • http://wovitoted.epizy.com/johnny_knoxville_injury_report.pdfIn PDF document text
    • https://s3.amazonaws.com/vovuzize/93763029448.pdfIn PDF document text
    • https://s3.amazonaws.com/jivagajamav/google_drive_the_darkest_minds_2_movie.pdfIn PDF document text
    • http://wetovokerug.epizy.com/adobe_audition_cs6_user_manual.pdfIn PDF document text
    • http://midelex.epizy.com/49857330797.pdfIn PDF document text
    • https://0eaabcdb-938a-45a6-85a3-1a7d796bbcdd.filesusr.com/ugd/8d6d25_bcf61ff7e5aa4545972e02623b5792f2.pdf?index=trueIn PDF document text
    • https://e4fb9bf1-a3d6-4767-9bf2-2a1021e5dc09.filesusr.com/ugd/53cfc7_a877f268e4bf43bdbc5d3f63ad78c005.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/bulujono/34388257510.pdfIn PDF document text
    • http://fotakime.rf.gd/qual__a_importncia_da_lngua_portuguesa.pdfIn PDF document text
    • http://kelujisulajow.rf.gd/easl_ascites.pdfIn PDF document text
    • https://51fd5013-30c4-43d1-89ce-86564632a3b5.filesusr.com/ugd/9f06f8_5b99e21279454f7c83e044c24f6b1dc5.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/fedufiporara/20840231228.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ccda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCDA 5776 bytes
SHA-256: aa95085a102164670b028c202dd74f51a9d6ca85ea52a3dcf7f9997671af2b15
font_01_sfnt_off0000e07b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE07B 10440 bytes
SHA-256: c2469c8399f9d2d8e8d40e04322fe83447afa21623e4172380103bf1cbc6f8a5
font_02_sfnt_off0001038f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1038F 17836 bytes
SHA-256: 3507fd09eddbed2541c3c8dd065dd8d88f0d21a34cd2d8280ab05ded08bc5b1e

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