Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d2eb5b019bb85e3…

MALICIOUS

PDF

86.2 KB Created: 2021-03-27 12:16:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: 553aaeba6d4c51c3eb9c17f0570b0e39 SHA-1: 2c2a8489b0dd53bda1993dd328bd0b7dd92d94ab SHA-256: 5d2eb5b019bb85e39a9ffb1fdcf36fdd4eeb89fef96788902bf6dac712e01f0e
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that points to a suspicious domain, likely intended to host a malicious payload. ClamAV detection and ML classification strongly indicate malicious intent, specifically a phishing or trojan distribution scheme. The document body, though heavily obfuscated, suggests a lure related to an award or map, aligning with common phishing tactics.

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://jottigo.ru/award?keyword=bucharest+map+pdf PDF link annotation
    • http://tesepaxe.iblogger.org/limixewusumowe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • http://repudifawag.rf.gd/adobe_reader_setup._exe.pdfIn PDF document text
    • https://s3.amazonaws.com/xeroguru/allergic_rhinitis_guideline_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/pibajuwi/fugegoga.pdfIn PDF document text
    • http://zexiwovo.epizy.com/tijode.pdfIn PDF document text
    • https://s3.amazonaws.com/fuvidokibet/address_format_us.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4a48d764-2a0a-462f-a66d-0855cb4e7951/gem_of_the_ocean_play.pdfIn PDF document text
    • https://s3.amazonaws.com/lixasifasi/92202359153.pdfIn PDF document text
    • http://levuvuz.rf.gd/alcoois_nomenclatura.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/61ffb6ce-5981-4b7b-a6f8-9a76dee8f7de/49366511109.pdfIn PDF document text
    • https://s3.amazonaws.com/wekibik/ad_lib_sheet_music_definition.pdfIn PDF document text
    • http://rumavajusugeg.rf.gd/how_many_miles_will_a_2001_nissan_frontier_last.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ecf3ec2d-28a8-4435-bf8a-40b15de8848c/3910254509.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7bd0b415-96b5-4b6a-b99c-47c109bd592f/2011_hyundai_sonata_front_bumper_replacement_cost.pdfIn PDF document text
    • https://s3.amazonaws.com/xopugup/jumping_the_broom_2011_cast.pdfIn PDF document text
    • https://s3.amazonaws.com/bubisifapagefe/insect_nest_identification_guide_uk.pdfIn PDF document text
    • http://kepepisex.epizy.com/nukebenezel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a030b0a-1985-467a-b2fe-004c4356accd/68711175495.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://www.gnu.org/licenses/gpl.htmlIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001030b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1030B 5412 bytes
SHA-256: 179427652904f58b1265879b3250f5f6ec4d6ed01bbcaa24e2597daec77d8c3e
font_01_sfnt_off0001153f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1153F 6148 bytes
SHA-256: be38186c9256ba0e64b07d34cca2e63b176d3ffd182ae4667a642b503e748fe0
font_02_sfnt_off0001251f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1251F 10832 bytes
SHA-256: 8c19172cb92c8a544708f880779af8520dba571403741664176aee54a4b5f7c9

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