Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a6e02d1a07f96d7…

MALICIOUS

PDF

86.3 KB Created: 2021-03-03 20:51:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 2fb99df519c6bd33d1ef201feb2bc8d1 SHA-1: dbcfdfb6ec828d415df0cc9d5a1e290254622948 SHA-256: 7a6e02d1a07f96d77a6815f6f7b0aaf7e77c6cc246c37a405823272552806f04
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI that directs the user to a suspicious domain, likely to deliver a secondary payload or phish for credentials. The document body, though heavily obfuscated, appears to contain search-related terms, reinforcing the phishing lure.

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://druttle.ru/strik?utm_term=who+makes+intertherm+furnaces PDF link annotation
    • http://naturka.space/tamil_actress_ajith_photoscv1l3.pdfIn PDF document text
    • http://kudukudimox.sportsontheweb.net/does_white_rice_have_more_calories_than_brown_rice.pdfIn PDF document text
    • http://bixaxivajujojar.mypressonline.com/57914920286.pdfIn PDF document text
    • http://kumululurug.scienceontheweb.net/kavidano.pdfIn PDF document text
    • http://dizurexemubegog.mygamesonline.org/oasis_water_cooler_faucet_parts.pdfIn PDF document text
    • http://bikejesoxatelo.mygamesonline.org/how_to_do_the_aa_12_steps.pdfIn PDF document text
    • http://sifinujox.sportsontheweb.net/78974537972.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kapirexazi.onlinewebshop.net/98483129632.pdfIn PDF document text
    • https://s3.amazonaws.com/wisuw/ziromitezabesa.pdfIn PDF document text
    • https://s3.amazonaws.com/bogeguva/sociological_perspective_of_self.pdfIn PDF document text
    • https://s3.amazonaws.com/guvovigo/zelejewurivatebiwufu.pdfIn PDF document text
    • https://s3.amazonaws.com/zusevamasor/opposite_of_loneliness_essay.pdfIn PDF document text
    • https://s3.amazonaws.com/lovetijif/40434729534.pdfIn PDF document text
    • https://s3.amazonaws.com/genedonapubefe/24561801068.pdfIn PDF document text
    • https://s3.amazonaws.com/fidobakipivogit/metric_area_and_volume_conversion_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/bejexe/how_much_does_old_navy_pay_hourly.pdfIn PDF document text
    • https://s3.amazonaws.com/lezerawe/9992102031.pdfIn PDF document text
    • http://nununad.myartsonline.com/96195795915.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010d88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D88 5168 bytes
SHA-256: cf5cb7b1272c32a7f54e325a070cb3cfb4d6ac0d328f7960578f6533cfa5116d
font_01_sfnt_off00011ef7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11EF7 13840 bytes
SHA-256: d4191fb52e71d9482b60fb3fe2b6878e5c3e4fde0c0a0f934e9cdea475128375

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