Malicious PDF — malware analysis report

Static analysis result for SHA-256 541e0347849b73e1…

MALICIOUS

PDF

145.5 KB Created: 2021-04-08 04:54:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: b1e032865dccbbeae550f32c8e050c06 SHA-1: 70f8b785f1953ec089ae58f1017e056d99f85662 SHA-256: 541e0347849b73e13a1f35f29061d08ae4e12ac8f6ee3d4da2f078db9f50f93e
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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-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://soxebez.ru/wix?keyword=mr+tandy+english+teaching PDF link annotation
    • http://byseles.xyz/les_miserables_banglaw760p.pdfIn PDF document text
    • http://uaregroup.com/why_is_sky_remote_beepingi381p.pdfIn PDF document text
    • http://saripituxupagek.sportsontheweb.net/31617628665.pdfIn PDF document text
    • http://gedadekenoz.mywebcommunity.org/pengertian_adt_android_development_tools.pdfIn PDF document text
    • http://nuveclovet.xyz/vunur73b2d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/55d05782-933f-4b4d-bb5c-982f23440f8d/gagasagasuvug.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/956bb9b1-b535-4184-88c1-2c4cde995732/kikixuwifu.pdfIn PDF document text
    • https://s3.amazonaws.com/jazofi/elder_scrolls_v_skyrim_collectors_edition_prima_official_game_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3dc75b47-dd45-4109-b498-4253e6ca1415/used_318_john_deere_mower_for_sale.pdfIn PDF document text
    • https://s3.amazonaws.com/tutasujal/55999588341.pdfIn PDF document text
    • https://s3.amazonaws.com/xedewofuretujo/86420239410.pdfIn PDF document text
    • https://s3.amazonaws.com/wanasuvedigo/what_does_the_idiom_paint_with_a_broad_brush_mean.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9231b256-e353-4c56-adc0-a9543b7401ff/pixadajojokizetolo.pdfIn PDF document text
    • https://s3.amazonaws.com/doxifuba/bovideromixabiwejukowe.pdfIn PDF document text
    • https://s3.amazonaws.com/petubapizo/75206977531.pdfIn PDF document text
    • http://desujiruvomeb.myartsonline.com/87888731647.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/96fd2197-a6a8-4214-87a6-1c27cdb79d29/un_metro_cubico_cuantos_centimetros_cubicos_es.pdfIn PDF document text
    • https://s3.amazonaws.com/pipaneku/14134304102.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000201ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x201EE 5308 bytes
SHA-256: fe6a5f8fe42017162f22a3be2126994caec5f5511c8498f1587e2994ed7db1ac
font_01_sfnt_off00021407.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21407 10780 bytes
SHA-256: b3f851bcded5ba870c359d9c986b18bbeb020d1154cb42da3309f5ecf2cdee17

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