Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e228c07e42abd0e…

MALICIOUS

PDF

80.6 KB Created: 2021-03-17 08:16:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 200ae46dd37fbac58081716ffb89e434 SHA-1: ec8d4453bcfa474a1f3c313f6ca0cd57211e0cd9 SHA-256: 5e228c07e42abd0e11cfa28432a514fd1dd3b895f7fef3c070468b86aca7c114
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 pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, appears to be a lure related to furniture search terms, aiming to trick users into visiting the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://midufefew.ru/wix?keyword=savon+furniture+st+joseph
    • http://xagugudel.sportsontheweb.net/zinazotagufidufipotitis.pdf
    • http://wavasesinile.22web.org/26822031446.pdf
    • http://pl50off.info/3d_animation_in_android_studiod02vs.pdf
    • http://presente-top.store/sketching_app_for_pc_free_download8u19y.pdf
    • https://cdn.sqhk.co/jemitaku/agfhavz/diferencia_entre_administracion_publica_y_privada.pdf
    • https://cdn-cms.f-static.net/uploads/4412606/normal_6019f544c3352.pdf
    • https://cdn.sqhk.co/jawosuzexe/BCiQbhb/housecall_providers_pc.pdf
    • https://cdn.sqhk.co/bisulalu/giayBEd/9442603999.pdf
    • http://derilezin.sportsontheweb.net/what_is_the_disney_college_program_looking_for.pdf
    • http://resijunul.22web.org/57552719671.pdf
    • https://cdn.sqhk.co/mokabawimav/gfEM2Ea/83772803866.pdf
    • https://static.s123-cdn-static.com/uploads/4426571/normal_5ffa3f884b2ef.pdf
    • http://fallofelin.online/44552199340mhddt.pdf
    • https://static.s123-cdn-static.com/uploads/4414495/normal_5ffeb5d931dc5.pdf
    • http://siwupezomejen.getenjoyment.net/form_4473_question_11_facebook.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/ba85c8e3-6ed8-4524-97a6-051741f7cdee/role_of_safety_committee_chairman.pdf
    • https://uploads.strikinglycdn.com/files/d4f06378-feb3-4c9e-bccb-4d4d90a60c2f/kuseduvitoxaxufenajab.pdf
    • http://zenujasope.epizy.com/zizanolibofakepi.pdf
    • https://uploads.strikinglycdn.com/files/e0397db9-c015-479b-80b0-cfad00dd8c5d/reality_transurfing_2.pdf
    • https://uploads.strikinglycdn.com/files/1a7a3434-3a11-41c6-a4e1-3b06354cb5ae/pemelinizipaludag.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e66b.bin
50311cc4e0755c009cc875ea0ae695111ef486626b0f070af5e8c7827d42a291		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE66B 5076 bytes
font_01_sfnt_off0000f79e.bin
64ef973f4c7e15ffe45038125c326a305a1ac393e57153fbaba1c4baf0375dec		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF79E 1852 bytes
font_02_sfnt_off00010075.bin
ad55ae17e41d9aa0fc4467b94f4bc1b71c23ef2b2a212fe1447cb42176ffacc1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10075 11028 bytes
font_03_sfnt_off0001264e.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1264E 4324 bytes

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