Malicious PDF — malware analysis report

Static analysis result for SHA-256 62e9ed811df55929…

MALICIOUS

PDF

69.3 KB Created: 2021-02-12 07:39:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: adca48fb32f64cdc6e0c4a5acacacdb9 SHA-1: 2723fad0eafba2e8db3451ca23a848ec60583aa1 SHA-256: 62e9ed811df559290a1f91650c0ecf52f0bce8bf4accb73992a7158689c1fb3f
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains an embedded URL that directs to a domain associated with malicious activity. The document body, though heavily obfuscated, suggests a lure related to collector plates, aiming to trick users into visiting the malicious URL.

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://maypoin.ru/wix?keyword=franklin+mint+collector+plates+price+guide
    • https://cdn-cms.f-static.net/uploads/4412174/normal_6016fbd37ef73.pdf
    • http://jigunemav.22web.org/46139156611.pdf
    • https://cdn-cms.f-static.net/uploads/4465145/normal_601a09cd679d8.pdf
    • https://cdn-cms.f-static.net/uploads/4376857/normal_6025bc2599bef.pdf
    • https://cdn.sqhk.co/vateviti/0ihhhji/dewuvidobep.pdf
    • http://xamujatawixix.22web.org/zejalulebepilobogagugexa.pdf
    • https://static.s123-cdn-static.com/uploads/4451737/normal_5ff757097a0e7.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://podapuleleg.epizy.com/accidents_reported_today_york_pa.pdf
    • https://s3.amazonaws.com/zedilegol/telefono_informacion_ayuntamiento_palma_de_mallorca.pdf
    • https://s3.amazonaws.com/bejeseja/clinics_in_dermatology_case_report.pdf
    • http://ritarejameja.epizy.com/97572100055.pdf
    • https://s3.amazonaws.com/lawakux/yaara_manjul_khattar_status_video.pdf
    • https://s3.amazonaws.com/potamotaz/online_wedding_card_design_template.pdf
    • http://sefudupufojuxo.rf.gd/definition_of_bimanual_examination_medical.pdf
    • http://wuvasof.epizy.com/batuan_beku_jurnal.pdf
    • https://s3.amazonaws.com/xoxaneral/jawujupesupobaxuviwebibo.pdf
    • https://s3.amazonaws.com/sabegokek/pezuparoboloxuzupegubex.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d370.bin
58271fd0667ca82a4533019541cac8ed7594f88ea858c30cb5ced70a892955d3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD370 5412 bytes
font_01_sfnt_off0000e5c7.bin
33b212852bcb081e8f0de262aa04359e9a2bc42f58912252ae8dfe8bfc61b517		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE5C7 10156 bytes

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